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Other Animal Sciences

Kansas Agricultural Experiment Station Research Reports

2009

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Higher Ruminal Ph Increases In Vitro Digestion Of Diets Containing Dried Distillers Grains With Solubles (2009), S. Uwituze, J.M. Heidenreich, James S. Drouillard Jan 2009

Higher Ruminal Ph Increases In Vitro Digestion Of Diets Containing Dried Distillers Grains With Solubles (2009), S. Uwituze, J.M. Heidenreich, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Advantages of steam flaking grain are less with respect to growth performance and diet digestion when a portion of distillers grains is substituted for grain. Ruminal pH typically is lower in cattle fed flaked-grain diets than in cattle fed rolled-grain diets. Ruminal pH for cattle fed finishing diets based on steam-flaked corn is observed below pH 6.0. Previous research observed a 5% decrease in digestion of organic matter when 13% distillers grains (dry-matter basis) was added to steam-flaked corn finishing diets. A decline in ruminal pH below 6.2 reduces activity of ruminal fiber-digesting organisms. Furthermore, ruminal protein digestion declines with …

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The Combination Of Implanting With Revalor-200 And Feeding Zilmax Increases Ribeye Area Of Fed Cows (2009), S. Neill, T.T. Marston, James J. Higgins, John A. Unruh, John R. Jaeger Jan 2009

The Combination Of Implanting With Revalor-200 And Feeding Zilmax Increases Ribeye Area Of Fed Cows (2009), S. Neill, T.T. Marston, James J. Higgins, John A. Unruh, John R. Jaeger

Kansas Agricultural Experiment Station Research Reports

Mature cows are typically removed from the cow herd for various reasons, such as reproductive inefficiency and poor performance. It has been estimated that as much as 15 to 25% of a ranch's revenue may be from cull cows. When cows are culled from the herd, they are normally in thin condition and potentially can be fed to gain weight and increase income. Previous studies indicate that feeding a high-energy diet and implanting cull cows can improve performance and increase meat yield. Zilmax (zilpaterol hydrochloride; Intervet Inc., Millsboro, DE) is a β-adrenergic agonist approved as a growth promotant in feedlot …

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A Meta-Analysis Of Supplemental Enzyme Studies In Growing-Finishing Pigs Fed Diets Containing Dried Distillers Grains With Solubles: Effects On Growth Performance (2009), J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

A Meta-Analysis Of Supplemental Enzyme Studies In Growing-Finishing Pigs Fed Diets Containing Dried Distillers Grains With Solubles: Effects On Growth Performance (2009), J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A meta-analysis of 4 experiments involving 4,506 pigs was conducted to determine the effects of several commercial enzymes on the growth performance of growing-finishing pigs fed various amounts of dried distillers grains with solubles (DDGS). Experiments 1 and 2 used corn-soybean meal-based diets with 15% DDGS. A β-mannanase enzyme (Hemicell; ChemGen Corp., Gaithersburg, MD) was used in enzyme treatments in Exp. 1, and a blend of enzymes that had β-glucanase, cellulase, and protease activities (Agri-king REAP; Agri-King, Inc., Fulton, IL) was used in Exp. 2. In Exp. 3, diets containing 45% and 60% DDGS were fed with or without 2 …

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Economic Impact Of Removing Pigs Before Marketing On The Remaining Pigs’ Growth Performance (2009), J Y. Jacela, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Economic Impact Of Removing Pigs Before Marketing On The Remaining Pigs’ Growth Performance (2009), J Y. Jacela, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

The economic impact of removing the heaviest pigs (topping) before marketing a finishing group and the effect of topping on performance of the remaining pigs were determined in 2 studies. In Exp. 1, a total of 1,126 pigs (BW = 241 lb; 25 pigs/pen) were randomly assigned to 1 of 3 treatments: topping 0, 2, or 4 pigs/pen 15 d before marketing the remaining pigs in the group. After topping, floor space per pig was 7.2, 7.8, and 8.6 ft2 for pens with 0, 2, and 4 pigs topped per pen, respectively. Overall (d 0 to 15), increasing the number …

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Backgrounding Health Associated With Area Of The Truck Where Cattle Were Housed During Transport (2009), Dale A. Blasi, M. Epp, Bradley J. White Jan 2009

Backgrounding Health Associated With Area Of The Truck Where Cattle Were Housed During Transport (2009), Dale A. Blasi, M. Epp, Bradley J. White

Kansas Agricultural Experiment Station Research Reports

Cattle are commonly moved between geographic regions by using commercial transport carriers, and the vast majority of cattle are transported at least one time during their lives. Both handling and travel associated with moving cattle between locations have been identified as potentially stressful events. The objective of this research was to identify potential associations between calf location within the transport carrier and subsequent calf wellness in the short term (40 to 60 days) following shipment. Health outcomes and average daily gain (ADG) were used to measure calf wellness during the backgrounding period. Although some research has described the overall effect …

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Effect Of Dried Distillers Grains With Solubles Withdrawal Regimens On Finishing Pig Performance And Carcass Characteristics (2009), J Y. Jacela, J M. Benz, K J. Prusa, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Effect Of Dried Distillers Grains With Solubles Withdrawal Regimens On Finishing Pig Performance And Carcass Characteristics (2009), J Y. Jacela, J M. Benz, K J. Prusa, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 962 pigs (PIC L337 × 1050, initial BW = 86.1 lb) were used to determine the effect of dried distillers grains with solubles (DDGS) withdrawal regimens on growth performance and carcass traits. Pigs were randomly assigned to 1 of 6 treatments (6 pens per treatment) balanced by average BW within gender. Treatments were: (1) a corn-soybean meal-based diet without DDGS fed for 89 d (control), (2) 30% DDGS fed from d 0 to 48 and 0% DDGS fed from d 48 to 89, (3) 30% DDGS fed from d 0 to 69 and 0% DDGS fed from …

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Effects Of Experimental Design And Its Role In Interpretation Of Results (2009), N W. Shelton, Michael D. Tokach, Joel M. Derouchey, Leigh W. Murray, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Effects Of Experimental Design And Its Role In Interpretation Of Results (2009), N W. Shelton, Michael D. Tokach, Joel M. Derouchey, Leigh W. Murray, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 256 weanling pigs (PIC TR4 × 1050, initially 13.8 lb and 21 d of age) were used in a 28-d growth trial to compare allotment methods of a completely randomized design (CRD) and a randomized complete block design (RCBD). Two treatments were used to compare these designs: a negative control with no antibiotic or growth promoter and a positive control with 35 g/ton of Denagard (Novartis Animal Health), 400 g/ton of chlortetracycline, and zinc from zinc oxide at 3,000 and 2,000 ppm in Phases 1 and 2, respectively. Experimental diets were fed in 2 phases: Phase 1 …

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Effects Of Sirrah-Bios Prrsv-Rs Vaccine On Mortality Rate And Finisher Pig Performance (2009), M L. Potter, Steven C. Henry, Lisa M. Tokach, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Effects Of Sirrah-Bios Prrsv-Rs Vaccine On Mortality Rate And Finisher Pig Performance (2009), M L. Potter, Steven C. Henry, Lisa M. Tokach, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,561 pigs (initially 4 d of age) were used to determine the effects of a porcine reproductive and respiratory syndrome virus (PRRSv) subunit vaccine, PRRSV-RS (Sirrah-Bios, Ames, IA), on mortality rate and finisher pig growth performance in a PRRSv-positive commercial herd. Pigs were randomly assigned by litter to either the subunit PRRSv vaccine or non-vaccinated control group. Pigs in the vaccinated group received an intramuscular injection of 1 mL PRRSV-RS vaccine at processing (approximately 4 d after birth) and again at weaning (approximately 24 d of age). Vaccinated and control pigs were comingled in a single nursery …

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Evaluation Of Pep2 In Nursery Pig Diets (2009), A J. Myers, N W. Shelton, G Papadopoulos, D Mckilligan, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2009

Evaluation Of Pep2 In Nursery Pig Diets (2009), A J. Myers, N W. Shelton, G Papadopoulos, D Mckilligan, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 300 nursery pigs (PIC 327 × 1050, initially 12.0 lb and 21 d of age) were used in a 25-d study to determine the effects of PEP2 (proteins enzymatically processed) on growth performance of weaned pigs. PEP2 is a combination of refined porcine intestinal mucosa co-dried with enzymatically processed vegetable protein. There were 5 dietary treatments: (1) negative control containing no specialty protein sources, (2) positive control containing 4% spray-dried animal plasma (SDAP) in Phase 1 and 4% select menhaden fish meal in Phase 2, (3) 4% PEP2, (4) 8% PEP2, and (5) 12% PEP2. All diets …

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Director's Report Of Research In Kansas 2008, Kansas State University. Agricultural Experiment Station Jan 2009

Director's Report Of Research In Kansas 2008, Kansas State University. Agricultural Experiment Station

Kansas Agricultural Experiment Station Research Reports

The 2008 Director's Report of Research in Kansas provides a list of journal articles, station publications, and other published manuscripts from scientists in our departments, centers, fields, and associated programs. On cover: July 1, 2003 to June 30, 2008

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Effects Of Ractopamine Hcl Dose And Treatment Period On Pig Performance In A Commercial Finishing Facility (2009), R G. Main, Steven S. Dritz, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey Jan 2009

Effects Of Ractopamine Hcl Dose And Treatment Period On Pig Performance In A Commercial Finishing Facility (2009), R G. Main, Steven S. Dritz, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey

Kansas Agricultural Experiment Station Research Reports

Objective: To evaluate effects of ractopamine HCl (RAC) dose and treatment period on growth performance and carcass composition in a commercial finishing environment. Materials and methods: In Experiment One, a total of 880 pigs (PIC L337 × C22; initially 106.5 ± 0.5 kg) were allotted to four treatments, including doses of 0, 5.0, 7.5, and 10.0 ppm of RAC for 21 days before slaughter. In Experiment Two, 1035 gilts (initially 103.2 ± 0.62 kg) were allotted to nine treatments. Treatments included doses of 5 or 10 ppm RAC for 7, 14, 21, or 28 days before slaughter and a control …

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Feed Additives For Swine: Fact Sheets – Carcass Modifiers, Carbohydrate-Degrading Enzymes And Proteases, And Anthelmintics (2009), J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, David G. Renter, Steven S. Dritz Jan 2009

Feed Additives For Swine: Fact Sheets – Carcass Modifiers, Carbohydrate-Degrading Enzymes And Proteases, And Anthelmintics (2009), J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, David G. Renter, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

There is increasing consumer demand for leaner and healthier pork products. Improvements in genetics, new technologies, and increased understanding of nutrition have become instrumental in helping producers meet this demand. Continued research also has led to the development of products that can be included in swine diets as carcass modifiers. A dietary carcass modifier is broadly defined as any component of the diet that alters the resulting carcass composition of pigs. Generally, the mechanism of action of carcass modifiers is aimed at increasing protein and muscle deposition while reducing fat deposition. These products vary in the mechanisms by which they …

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Feed Additives For Swine: Fact Sheets – Acidifiers And Antibiotics (2009), J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, David G. Renter, Steven S. Dritz Jan 2009

Feed Additives For Swine: Fact Sheets – Acidifiers And Antibiotics (2009), J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, David G. Renter, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Feed additives are non-nutritive products used in swine diets to improve production efficiency and performance. If chosen carefully and used properly, feed additives can be effective and can help increase the profi tability of pig production. Not all feed additives are the same or provide a benefi cial response and, therefore, choosing a product will depend on the farm's specific situation and needs. This series of fact sheets includes some of the major classifications of products used as feed additives. Every effort has been made to ensure that all the information in every fact sheet is current and based on …

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Roundup 2009 Jan 2009

Roundup 2009

Kansas Agricultural Experiment Station Research Reports

Roundup is the major beef cattle education and outreach event sponsored by the Agricultural Research Center-Hays. The purpose is to communicate timely, applicable research information to producers and extension personnel. The research program of the Agricultural Research Center-Hays is dedicated to serving the people of Kansas by developing new knowledge and technology to stabilize and sustain long-term production of food and fiber in a manner consistent with conservation of natural resources, protection of the environment, and assurance of food safety. Primary emphasis is on production efficiency through optimization of inputs in order to increase profit margins for producers in the …

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Effect Of A Commercial Enzyme (Nutrase) On Growth Performance Of Growing Pigs Fed Diets Containing Dried Distillers Grains With Solubles (2009), J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Effect Of A Commercial Enzyme (Nutrase) On Growth Performance Of Growing Pigs Fed Diets Containing Dried Distillers Grains With Solubles (2009), J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,076 pigs (PIC 337 × C22, initially 87.4 lb) were used to determine the effect of a commercial enzyme product on the growth performance of pig fed diets containing dried distillers grains with solubles (DDGS). Pigs were randomly allotted to 1 of 3 treatments balanced by average initial BW within gender. There were 13 replicate pens (7 barrow and 6 gilt pens) per treatment. Treatments included: (1) diet with 3% added fat (control); (2) diet supplemented with enzyme with only 2% added fat but formulated to have an energy content equal to that of the control diet …

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Sensory Characteristics Of Loins From Pigs Fed Glycerol And Ractopamine Hcl During The Last 28 Days Of Finishing (2009), A W. Duttlinger, Terry A. Houser, Michael D. Tokach, Steven S. Dritz, K J. Prusa, L Huskey, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband Jan 2009

Sensory Characteristics Of Loins From Pigs Fed Glycerol And Ractopamine Hcl During The Last 28 Days Of Finishing (2009), A W. Duttlinger, Terry A. Houser, Michael D. Tokach, Steven S. Dritz, K J. Prusa, L Huskey, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

Sensory characteristics were evaluated on a total of 80 loins from pigs fed diets containing glycerol, ractopamine HCl (RAC), and a combination of glycerol and RAC during the last 28 d prior to harvest. A total of 1,054 pigs were blocked by weight and randomly allotted to 1 of 4 dietary treatments with 10 replications per treatment. Pigs were fed corn-soybean meal-based diets. Dietary treatments were arranged in a 2 × 2 factorial design with main effects of glycerol (0% or 5%) and RAC (0 or 6.75 g/ton). Pork loins from 1 randomly selected barrow and gilt from each pen …

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Incidence And Severity Of Arcanobacterium Pyogenes Injection Site Abscesses With Needle Or Needle-Free Injection Methods (2009), B M. Gerlach, Terry A. Houser, Larry C. Hollis, Michael D. Tokach, Jerome C. Nietfeld, James J. Higgins, Gary A. Anderson, B L. Goehring Jan 2009

Incidence And Severity Of Arcanobacterium Pyogenes Injection Site Abscesses With Needle Or Needle-Free Injection Methods (2009), B M. Gerlach, Terry A. Houser, Larry C. Hollis, Michael D. Tokach, Jerome C. Nietfeld, James J. Higgins, Gary A. Anderson, B L. Goehring

Kansas Agricultural Experiment Station Research Reports

A total of 198 nursery age pigs were used to evaluate the difference in the occurrence of injection site abscesses between needle-free jet injection and conventional needle-and-syringe injection systems. Pigs were fed for 21 d prior to treatment administration to acclimate the pigs to the environment of the Kansas State University Segregated Early Weaning Unit. On d 21, each pig received 4 injections of aluminum hydroxide adjuvant, 1 in the neck and 1 in the ham by needle-free jet injection (Pulse Needle-Free Systems, Lenexa, KS) on 1 side and 1 in the neck and 1 in the ham on the …

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An Evaluation Of Peptone As A Specialty Protein Source In Diets For Nursery Pigs (2009), C K. Jones, D Mckilligan, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2009

An Evaluation Of Peptone As A Specialty Protein Source In Diets For Nursery Pigs (2009), C K. Jones, D Mckilligan, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to evaluate the effects of select menhaden fish meal (SMFM), spray-dried animal plasma (SDAP), and two forms of a spray-dried ultra-filtrated porcine intestinal mucosa (Peptone 1 and 2; Protein Resources, West Bend, IA) on nursery pig performance. In Exp. 1, 216 weanling pigs (initial BW 11.9 lb) were fed either (1) a control diet containing no specialty protein sources or the control diet with (2) 4% SMFM during Phase 1 and 2% SMFM during Phase 2, (3) 4% SDAP during Phase 1 and no specialty protein sources during Phase 2, (4) 4% SDAP during Phase 1 …

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Effects Of Increasing Feeding Level During Late Gestation On Sow And Litter Performance (2009), N W. Shelton, C R. Neill, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Effects Of Increasing Feeding Level During Late Gestation On Sow And Litter Performance (2009), N W. Shelton, C R. Neill, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 108 gilts and sows (PIC 1050) and their litters were used over 2 gestation and lactation periods to determine the effect of increasing late gestation feeding level on sow and litter performance. Treatments were structured as a 2 × 2 factorial design with main effects of feeding level (0 or 2 lb of extra feed from d 90 to farrowing) and parity group (gilts or sows). The trial was conducted for 2 successive parities, with gilts and sows remaining on the same treatment for both parities. For the first gestation and lactation period, gilts had increased (P<0.001) backfat thickness on d 35, 90, and 112 of gestation and at farrowing compared with sows but had increased (P<0.001) lactation backfat loss. Increasing late gestation feed increased (P<0.001) weight gain from d 90 to 112 in both gilts and sows. There were late gestation feeding level × parity interactions observed (P<0.04) for ADFI and total feed intake for the overall lactation period. This was due to gilts having decreased lactation ADFI when fed extra feed in late gestation, but when sows were fed extra feed, lactation ADFI increased. Increasing feeding level in late gestation also increased (P<0.04) total feed cost. A feeding level × parity interaction was observed (P<0.04) for average weight of total born and live born pigs. Increasing feeding level in late gestation increased piglet birth weight in gilts but decreased piglet weight in sows. Gilts had increased (P<0.02) number and total weight of the total born, live born, and number after fostering compared with older parity sows. Gilts weaned larger (P<0.002) litters and had increased (P<0.03) total litter weaning weight compared with older parity sows. At weaning, sows had a decreased (P<0.002) weaning to breeding interval compared with gilts, and a late gestation feeding level × parity interaction was observed (P<0.03) for conception rate. Gilts that received increased late gestation feed had a greater conception rate than those maintained on the same level, whereas a decrease in conception rate was observed when sows received increased late gestation feed. During the subsequent lactation period, a feeding level × parity interaction was detected (P<0.005) for lactation backfat loss. This interaction was reflective of an increase in backfat loss in parity 2 sows as the late gestation feeding level was increased and a decrease in backfat loss in parity 3 and older sows with increasing late gestation feeding level. A feeding level × parity interaction was detected (P<0.02) for lactation weight loss; parity 2 sows lost a greater amount of weight when late gestation feeding level was increased, whereas similar weight losses were observed between treatments in parity 3 and older sows. Total born and live born numbers and total litter weight were greater (P<0.006) in parity 2 sows than in parity 3 and older sows. A late gestation feeding level × parity interaction was observed (P<0.01) for average weight of both total born and live born pigs because of an increase in piglet birth weight as parity 2 sows were supplemented with 2 lb of additional feed in late gestation with a slight numeric decrease in parity 3 and older sows. Additional feed in late gestation increased (P<0.02) average piglet weaning weight, with a large improvement observed in parity 2 sows. Total number weaned and total weight at weaning were increased (P<0.004) in parity 2 sows compared with parity 3 and older sows. This trial indicates that adding extra feed to late gestation diets increased feed cost with no benefit in sow performance. In gilts, conception rate and litter weaning weight were increased during the second parity, but no other benefits were found.; Swine Day, Manhattan, KS, November 19, 2009

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Effects Of Feeder Design, Gender, And Dietary Concentration Of Dried Distillers Grains With Solubles On The Growth Performance And Carcass Characteristics Of Growing-Finishing Pigs (2009), J R. Bergstrom, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz Jan 2009

Effects Of Feeder Design, Gender, And Dietary Concentration Of Dried Distillers Grains With Solubles On The Growth Performance And Carcass Characteristics Of Growing-Finishing Pigs (2009), J R. Bergstrom, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 2 × 2 × 2 factorial experiment was conducted to evaluate the interactive effects of feeder design (conventional dry vs. wet-dry feeder), gender (barrow vs. gilt), and dietary concentration of dried distillers grains with solubles (DDGS; 20% vs. 60%) on finishing pig performance. A total of 1,080 pigs (PIC 337 × 1050) were used in the 99-d experiment. Pigs were sorted by gender (barrows and gilts) into groups of 27, weighed (77.4 lb initial BW), allotted to pens containing 1 of the 2 feeder types, and assigned to a corn-soybean meal-DDGS-based feeding program of either 20% or 60% DDGS. …

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Effects Of Dietary Astaxanthin On The Growth Performance And Carcass Characteristics Of Finishing Pigs (2009), J R. Bergstrom, Terry A. Houser, J A. Gunderson, A N. Gipe, J Jacela, J M. Benz, R C. Sulabo, Jim L. Nelssen, Michael D. Tokach Jan 2009

Effects Of Dietary Astaxanthin On The Growth Performance And Carcass Characteristics Of Finishing Pigs (2009), J R. Bergstrom, Terry A. Houser, J A. Gunderson, A N. Gipe, J Jacela, J M. Benz, R C. Sulabo, Jim L. Nelssen, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

A total of 48 barrows (initially 215 lb) were used to evaluate the effects of increasing dietary astaxanthin (0, 5, 10, and 20 ppm) on late-finishing pig performance and carcass characteristics. Pigs were blocked by weight and randomly allotted to 1 of 4 dietary treatments in a 26-d experiment. Pigs were fed simple corn-soybean meal-based diets. Treatments consisted of a control diet and the control diet with 5, 10, or 20 ppm added astaxanthin. For overall growth performance (d 0 to 26), ADG and F/G of pigs fed astaxanthin was not different from that of the control pigs. However, ADFI …

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Effects Of Creep Diet Complexity On Individual Consumption Characteristics And Growth Performance Of Neonatal And Weanling Pigs (2009), R C. Sulabo, J R. Bergstrom, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Effects Of Creep Diet Complexity On Individual Consumption Characteristics And Growth Performance Of Neonatal And Weanling Pigs (2009), R C. Sulabo, J R. Bergstrom, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

In Exp. 1, 96 sows (PIC C29) and their litters were used to determine the effects of creep diet complexity on preweaning performance and the proportion of piglets consuming creep feed. The experimental treatments were: (1) no creep feed (n = 26), (2) simple creep diet (n = 26), and (3) complex creep diet (n = 44). Pigs fed the complex creep diet had greater (P<0.03) ADG and tended to have greater (P<0.06) total gain than pigs fed the simple creep diet, with no creep pigs intermediate. Litters fed the complex creep diet consumed twice the total (2.73 vs. 1.37 lb; P<0.0006) and daily (0.91 vs. 0.45 lb; P<0.0006) creep feed intake of litters fed the simple creep diet. The high-complexity creep diet improved (P<0.0001) the proportion of eaters from 28% to 68%. A greater (P<0.10) proportion of eaters were nursing in the middle and posterior teats (57% and 52%, respectively) than in the anterior teats (38%). In Exp. 2, 675 pigs from Exp. 1 (initial BW 14.1 lb and 21.2 ± 0.2 d) were used to determine whether social facilitation occurs between eaters and non-eaters in commercial nursery groups. The treatments were: non-eater group (pigs that were not provided any creep feed or non-eaters of creep feed), eater group (pigs that positively consumed creep feed), and mix group (pigs that were 51% non-eaters and 49% eaters). Each treatment had 25 pigs per pen and 9 replications (pens). In the initial 3 d postweaning, eaters had greater (P<0.01) ADG and (P<0.002) ADFI than non-eaters, with the mix group being intermediate. Overall ADG of the eater group was 6.2% higher (P<0.05) than that of the non-eater group. For social facilitation to occur, weight gains of non-eaters in the mix pens should be either (1) closer to the weight gains of eaters in the mix pen or (2) greater than the weight gains of the non-eater group. Results showed that non-eaters within the mix pens failed both criteria. In conclusion, the high-complexity creep diet improved preweaning ADG, litter creep feed intake, and the proportion of eaters. Eaters had improved postweaning feed intake, daily gains, and weight uniformity and reduced postweaning lag. Mixing eaters with non-eaters within pens in large commercial groups did not stimulate feed intake and daily gains of non-eaters, which indicates that social facilitation did not occur.; Swine Day, Manhattan, KS, November 19, 2009

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Effects Of Copper Sulfate And Zinc Oxide On Weanling Pig Growth And Plasma Mineral Levels (2009), N W. Shelton, Michael D. Tokach, Joel M. Derouchey, G M. Hill, R G. Amachawadi, Tiruvoor G. Nagaraja, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2009

Effects Of Copper Sulfate And Zinc Oxide On Weanling Pig Growth And Plasma Mineral Levels (2009), N W. Shelton, Michael D. Tokach, Joel M. Derouchey, G M. Hill, R G. Amachawadi, Tiruvoor G. Nagaraja, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 216 weanling pigs (PIC TR4 × 1050, initially 13.6 lb and 21 d of age) were used in a 42-d growth trial to compare the effects of supplemental zinc and copper and changing mineral regimens on growth performance and plasma mineral levels. The 6 dietary treatments included a 2 × 2 factorial arrangement with main effects of added copper from copper sulfate (0 or 125 ppm) and added zinc from zinc oxide (0 or 3,000 ppm from d 0 to 14 and 0 or 2,000 ppm from d 14 to 42). For the final 2 treatments, either …

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Effects Of Porcine Circovirus Type 2 Vaccination On Nursery And Finishing Pig Performance Under A Prrs Challenge, N W. Shelton, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2009

Effects Of Porcine Circovirus Type 2 Vaccination On Nursery And Finishing Pig Performance Under A Prrs Challenge, N W. Shelton, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 2,571 barrows and gilts (PIC 337 × 1050) were used to determine the effects of porcine circovirus type 2 vaccine (PCV2) on nursery and finishing pigs that were challenged with porcine respiratory and reproductive syndrome (PRRS). Treatments were arranged in a 2 × 2 factorial design with main effects of gender (barrow or gilt) and vaccine (PCV2 vaccinates or non-vaccinates). Vaccinated pens received 2 doses of commercial PCV2 vaccine (Circumvent PCV, Intervet Inc., Millsboro, DE) according to label directions on d 1 and 22 in the nursery. All pigs were also inoculated on d 30 with serum …

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Effects Of Porcine Circovirus Type 2 And Mycoplasma Hyopneumoniae Vaccination Strategy, Birth Weight, And Gender On Postweaning Performance Of Growing-Finishing Pigs Reared In A Commercial Environment (2009), J R. Bergstrom, M L. Potter, Steven C. Henry, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2009

Effects Of Porcine Circovirus Type 2 And Mycoplasma Hyopneumoniae Vaccination Strategy, Birth Weight, And Gender On Postweaning Performance Of Growing-Finishing Pigs Reared In A Commercial Environment (2009), J R. Bergstrom, M L. Potter, Steven C. Henry, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,995 pigs were used to evaluate the effects of two porcine circovirus type 2 (PCV2) and Mycoplasma hyopneumoniae (Mhyo) vaccination strategies and birth weight on pig performance and carcass characteristics. The first vaccination strategy (BI) was a single full dose of CircoFLEX-MycoFLEX (Boehringer Ingelheim, St. Joseph, MO) at weaning. The second strategy (Intervet) was a full dose of Circumvent and MYCOSILENCER (Intervet/Schering-Plough Animal Health, Millsboro, DE) at weaning and again 22 d later. At a commercial sow farm, all pigs born alive for 22 consecutive days were identified individually at birth with a numbered ear tag. The …

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Effects Of Meal Or Pellet Diet Form On Finishing Pig Performance And Carcass Characteristics (2009), M L. Potter, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Effects Of Meal Or Pellet Diet Form On Finishing Pig Performance And Carcass Characteristics (2009), M L. Potter, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were performed to determine the effects of feeding diets in meal or pellet form on finishing pig performance. A corn-soybean meal-based diet was fed in Exp. 1, and a diet containing alternative ingredients was used in Exp. 2. All pelleted diets were processed through a CPM pellet mill (California Pellet Mill Co., Crawfordsville,IN) equipped with a 3/16 in. die. In Exp. 1, a total of 1,072 pigs (60.7 lb) were used in a 112-d trial. Treatments were arranged in 2 × 2 factorial design (10 pens per treatment) with main effects of diet form (meal or pellet) and …

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Effects Of Increasing Standardized Ileal Digestible Lysine:Calorie Ratio On The Growth Performance Of Growing-Finishing Pigs (2009), J R. Bergstrom, N W. Shelton, G Papadopoulos, M L. Potter, J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Effects Of Increasing Standardized Ileal Digestible Lysine:Calorie Ratio On The Growth Performance Of Growing-Finishing Pigs (2009), J R. Bergstrom, N W. Shelton, G Papadopoulos, M L. Potter, J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,080 pigs (PIC TR4 × 1050) were used in four 28-d experiments to determine the lysine requirements of growing-finishing pigs reared in the new Kansas State University finishing barn. Low- and high-lysine corn-soybean meal-based diets with no added fat were formulated for each experiment by varying the amounts of corn, soybean meal, L-lysine HCl, DL-methionine, and L-threonine. Six lysine levels were evaluated in each experiment, with intermediate lysine levels obtained by blending the low- and high-lysine diets. There were 6 pens containing an equal number of barrows and gilts for each treatment, with 6 or 8 pigs …

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Effects Of Feeding Varied Levels Of Balanced Protein On Growth Performance And Carcass Composition Of Growing And Finishing Pigs (2009), N W. Shelton, J K. Htoo, M Redshaw, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2009

Effects Of Feeding Varied Levels Of Balanced Protein On Growth Performance And Carcass Composition Of Growing And Finishing Pigs (2009), N W. Shelton, J K. Htoo, M Redshaw, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,003 barrows and gilts (PIC 337 × 1050, initially 113.5 lb) were used in an 88-d study to determine effects of various levels of balanced amino acid density on growth performance and carcass characteristics. Balanced amino acid refers to balancing the dietary amino acids according to the ideal protein ratio, at least for the first 4 limiting amino acids; the other amino acids may be at or higher than required levels. In this study, this balance was accomplished by using supplemental amino acids and formulating to meet the first 4 limiting amino acids: lysine, threonine, methionine, and …

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Effects Of Feeding Ractopamine Hcl (Paylean) For Various Durations On Late-Finishing Pig Performance And Carcass Characteristics (2009), M L. Potter, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2009

Effects Of Feeding Ractopamine Hcl (Paylean) For Various Durations On Late-Finishing Pig Performance And Carcass Characteristics (2009), M L. Potter, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 627 pigs (241.5 lb) were used in a 21-d finishing trial to evaluate the effects of feeding ractopamine HCl (RAC; Paylean, Elanco Animal Health, Greenfield, IN) for different durations on growth performance and carcass characteristics. On d 0, pens of pigs containing both barrows and gilts in approximately equal numbers were blocked by average BW and randomly allotted to 1 of 3 dietary treatments (8 pens per treatment) with average initial weight balanced across treatments. Dietary treatments were feeding a control diet without RAC and feeding a diet containing 4.5 g/ton RAC for the last 14 or …

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Effects Of Copper Sulfate, Zinc Oxide, And Neoterramycin On Weanling Pig Growth And Antibiotic Resistance Rate For Fecal Escherichia Coli (2009), N W. Shelton, M E. Jacob, Michael D. Tokach, Joel M. Derouchey, R G. Amachawadi, X Shi, Tiruvoor G. Nagaraja, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2009

Effects Of Copper Sulfate, Zinc Oxide, And Neoterramycin On Weanling Pig Growth And Antibiotic Resistance Rate For Fecal Escherichia Coli (2009), N W. Shelton, M E. Jacob, Michael D. Tokach, Joel M. Derouchey, R G. Amachawadi, X Shi, Tiruvoor G. Nagaraja, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 180 weanling pigs (PIC TR4 ×1050, initially 11.1 lb and 21 d of age) were used in a 42-d growth trial to compare the effects of supplemental zinc, copper, and in-feed antimicrobial on weanling pig growth and antibiotic resistance of fecal Escherichia coli. There were 5 dietary treatments with 6 pens per treatment and 5 pigs per pen. Pens were assigned to dietary treatments in a randomized complete block design. Treatments were arranged in a 2 × 2 factorial design with main effects of copper sulfate (0 or 125 ppm) and zinc oxide (0 or 3,000 ppm …

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