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Full-Text Articles in Life Sciences
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
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
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
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 …
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
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 …
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
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 …
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
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 …
Effects Of Mycotoxin Binders And A Liquid Immunity Enhancer On The Growth Performance Of Wean-To-Finish Pigs (2009), J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Effects Of Mycotoxin Binders And A Liquid Immunity Enhancer On The Growth Performance Of Wean-To-Finish Pigs (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 1,120 pigs (PIC 337 × C22, initial BW = 16.0 lb) were used in a study to evaluate the effects of 2 commercial mycotoxin binders and a liquid immunity enhancer product on growth performance of wean-to-finish pigs. Pigs were randomly assigned to 1 of 4 treatments balanced by initial average BW within gender with 10 replicate pens per treatment. Treatments were: (1) control standard phase-fed diets based on corn and soybean meal with DDGS (20 to 35%) fed for 132 d, (2) a control diet with mycotoxin binders Biomannan fed from d 0 to 55 and T-BIND …
Effects Of Adding Enzymes To Diets Containing High Levels Of Dried Distillers Grains With Solubles On Growth Performance Of Finishing Pigs (2009), J Y. Jacela, K J. Prusa, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Effects Of Adding Enzymes To Diets Containing High Levels Of Dried Distillers Grains With Solubles On Growth Performance Of Finishing Pigs (2009), J Y. Jacela, 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 1,032 pigs (BW = 101.5 lb) were used in a 90-d experiment to determine the effects of adding enzymes to diets containing high levels of dried distillers grains with solubles (DDGS) on growth performance and carcass characteristics of finishing pigs. Pigs were blocked by BW and randomly allotted to 1 of 7 dietary treatments with 6 pens per treatment. The control diet contained 30% DDGS. The remaining treatments were arranged in a 2 × 3 factorial design based on DDGS (45 or 60%) and enzyme inclusion (none, product A, or product B). Enzyme products were commercially available …
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
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 …
Effects Of Porcine Circovirus Type 2 Vaccine And Increasing Standardized Ileal Digestible Lysine:Calorie Ratio On Growth Performance And Carcass Composition Of Growing And Finishing Pigs (2009), N W. Shelton, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz
Effects Of Porcine Circovirus Type 2 Vaccine And Increasing Standardized Ileal Digestible Lysine:Calorie Ratio On Growth Performance And Carcass Composition Of Growing And Finishing Pigs (2009), 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 series of 4 experiments was conducted to determine the effect of porcine circovirus type 2 (PCV2) vaccination on the lysine requirement of growing and finishing pigs. Experiments 1 and 2 evaluated the requirement for 85- to 140-lb gilts and barrows, respectively. Experiments 3 and 4 evaluated the requirement for 225- to 275-lb gilts and 215- to 260-lb barrows, respectively. Data from each trial were analyzed as 2 × 4 factorial designs with 2 PCV2 vaccination treatments (vaccinates and non-vaccinates) and 4 levels of increasing standardized ileal digestible (SID) lysine:ME ratio (2.24, 2.61, 2.99, and 3.36 g/Mcal in Exp. 1 …
Determination Of Amino Acid Digestibility And Calculated Energy Values In High-Protein Sorghum Dried Distillers Grains With Solubles In Growing Pigs (2009), H L. Frobose, J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz
Determination Of Amino Acid Digestibility And Calculated Energy Values In High-Protein Sorghum Dried Distillers Grains With Solubles In Growing Pigs (2009), H L. Frobose, J Y. Jacela, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
An experiment was conducted to determine the digestibility of amino acids (AA) and energy in high-protein sorghum dried distillers grain with solubles (DDGS). Six growing barrows (initially 50 lb) surgically fitted with T-cannulas were randomly assigned to 1 of 2 dietary treatments in a 2-period crossover design. The treatments were a diet with the high-protein sorghum DDGS (50% of the diet) as the only protein source and an N-free diet for determining basal endogenous AA loss. Both diets contained 0.25% chromic oxide as an indigestible marker. Fecal and ileal digesta samples were collected during each period for energy and AA …
Comparison Of Different Antimicrobial Sequences On Nursery Pig Performance And Economic Return (2009), M U. Steidinger, D Dau, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Comparison Of Different Antimicrobial Sequences On Nursery Pig Performance And Economic Return (2009), M U. Steidinger, D Dau, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 1,008 weanling pigs (12.0 lb and 19 d of age) were used in a 42-d experiment to compare different antibiotic regimens on growth performance and economic return. From d 0 to 11 and d 11 to 21, pigs were fed diets containing no antibiotic, a combination of Denagard (Novartis Animal Health, Greensboro, NC) at 35 g/ton and chlortetracycline at 400 g/ton (Denagard/CTC), or Pulmotil (Elanco, Greenfield, IN; 363 g/ton from d 0 to 11 and 181 g/ton from d 11 to 21). From d 21 to 42, pigs previously fed Denagard/CTC or Pulmotil were fed diets containing …
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
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 …
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
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
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
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 …
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
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 …
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
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 …
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
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 …
Effects Of Increasing Hominy Feed In Diets On Finishing Pig Performance (2009), M L. Potter, J Y. Jacela, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Effects Of Increasing Hominy Feed In Diets On Finishing Pig Performance (2009), M L. Potter, J Y. Jacela, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 1,035 finishing pigs (initially 79.4 lb) were used in an 84-d growth trial to evaluate the effects of increasing hominy feed on finishing pig growth performance. Pens of pigs were blocked by average initial pig BW and randomly allotted to 1 of 4 dietary treatments (10 pens per treatment) with initial weights balanced across the treatment groups. Treatments were increasing levels (0%, 12.5%, 25%, and 37.5%) of corn hominy feed added to a corn-soybean meal-based diet. All treatment diets were fed in 4 phases, and hominy feed inclusion was constant among phases. Increasing hominy feed resulted in …
Effect Of Constant Or Step-Up Ractopamine Hcl (Paylean) Feeding Programs On Growth Performance And Carcass Characteristics Of Late-Finishing Pigs (2009), J Y. Jacela, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Effect Of Constant Or Step-Up Ractopamine Hcl (Paylean) Feeding Programs On Growth Performance And Carcass Characteristics Of Late-Finishing Pigs (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
A total of 1,099 pigs (PIC 337 × C22; initial BW = 208 lb) were used to evaluate the effect of ractopamine HCl (RAC) feeding programs on growth and carcass traits of late-finishing pigs. Pigs were randomly assigned to 1 of 3 treatments balanced by average BW within gender. There were 14 pens per treatment and 26 pigs per pen. Treatments were a basal diet with: (1) 0 g/ton RAC for 28 d (control), (2) 0 g/ton RAC from d 0 to 7 and 4.5 g/ton RAC from d 7 to 28 (constant), and (3) 4.5 g/ton from d 0 …
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
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 …
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
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 …
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
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. …
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
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 …
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
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 …
Effects Of An Enzyme Blend (Livestock Answer) In Diets Containing Dried Distillers Grains With Solubles On Growth Performance Of Nursery And Finishing Pigs (2009), J M. Benz, Jim L. Nelssen, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz
Effects Of An Enzyme Blend (Livestock Answer) In Diets Containing Dried Distillers Grains With Solubles On Growth Performance Of Nursery And Finishing Pigs (2009), J M. Benz, Jim L. Nelssen, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
Two trials were conducted to determine the effects of an enzyme blend (Livestock Answer; Environmental Care and Share, Golden, CO) on growth performance of nursery and wean-to-finish pigs. Livestock Answer contains amylases, cellulases, proteases, lipases, and phytases. In Exp. 1, a total of 180 pigs (PIC TR4 × 1050, initially 12.3 lb and 21 d old) were used in a 28-d trial. Pigs were blocked by weight and allotted at weaning to 1 of 3 enzyme levels (0%, 0.125%, and 0.175%). There were 6 pigs per pen and 10 replications per treatment. Diets were corn-soybean meal based and contained 15% …
Effects Of Porcine Circovirus Type 2 And Mycoplasma Hyopneumoniae Vaccines On Nursery Pig Performance (2009), M L. Potter, A W. Duttlinger, J R. Bergstrom, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Effects Of Porcine Circovirus Type 2 And Mycoplasma Hyopneumoniae Vaccines On Nursery Pig Performance (2009), M L. Potter, A W. Duttlinger, J R. Bergstrom, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
A total of 360 weanling barrows (PIC 1050, 21 d of age and 13.0 lb) were used in a 35-d study to evaluate the effects of porcine circovirus type 2 (PCV2) and Mycoplasma hyopneumoniae (M. hyo) vaccines on nursery pig growth performance. Two commercial PCV2 vaccines were evaluated in this study: (1) a 2-dose product, Circumvent PCV (Circumvent; Intervet/Schering-Plough Animal Health, Millsboro, DE) and (2) a 1-dose product, Ingelvac CircoFLEX (CircoFLEX; Boehringer Ingelheim Vetmedica, Inc, St. Joseph, MO). For the M. hyo vaccine, RespiSure (Pfizer Animal Health, New York, NY), a single 2-dose product, was used. At weaning (d 0), …
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
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 …
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
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 …
Efficacy Of Different Commercial Phytase Sources And Development Of A Phosphorus Release Curve (2009), C K. Jones, B W. Ratliff, N L. Horn, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Efficacy Of Different Commercial Phytase Sources And Development Of A Phosphorus Release Curve (2009), C K. Jones, B W. Ratliff, N L. Horn, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz
Kansas Agricultural Experiment Station Research Reports
Two experiments used 184 pigs (PIC, 22.7 and 21.3 lb BW, respectively) to develop an available P (aP) release curve for commercial phytase products. In Exp. 1 and 2, pigs were fed a basal diet (0.06% aP) and 2 levels of added aP from inorganic P (monocalcium P) to develop a standard curve. In Exp. 1, 100, 175, 250, or 500 phytase units (FTU)/kg OptiPhos (Enzyvia LLC, Sheridan, IN) or 200, 350, 500 or 1,000 FTU/kg Phyzyme XP (Danisco Animal Nutrition, Marlborough, UK) was added to the basal diet. In Exp. 2, 250, 500, 750, or 1,000 FTU/kg OptiPhos; 500, …
Effects Of Piglet Birth Weight And Litter Size On The Preweaning Growth Performance Of Pigs On A Commercial Farm (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
Effects Of Piglet Birth Weight And Litter Size On The Preweaning Growth Performance Of Pigs On A Commercial Farm (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 2,204 pigs (PIC 327 sired) were used to evaluate the effects of piglet birth weight and litter size on preweaning piglet performance. At a commercial sow farm, all pigs born alive for 22 consecutive days were identified individually at birth with a numbered ear tag. Each sow was assigned a body condition score (BCS; 1 = very thin to 5 = very fat), and the number of total born, live born, and born dead as well as the individual gender, birth weight, and identification of piglets were recorded within 18 h of parturition and before the movement …