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Swine day

2005

Articles 1 - 30 of 33

Full-Text Articles in Life Sciences

Effects Of Continuous Or Intermittent Ractopamine Hcl (Paylean1) Use On Pig Growth Performance In Late Finishing, C R. Neill, C N. Groesbeck, K R. Brown, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

Effects Of Continuous Or Intermittent Ractopamine Hcl (Paylean1) Use On Pig Growth Performance In Late Finishing, C R. Neill, C N. Groesbeck, K R. Brown, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 110 barrows (PIC L210 × L42) with an initial weight of 154.4 lb were used in a 56-d feeding trial to evaluate the effects of continuously feeding ractopamine HCl (Paylean; 9 g/ton), withdrawing Paylean, or intermittent Paylean feeding on finishing pig performance. There were five experimental treatments fed the last 56 d before marketing; A) control diet (no Paylean) fed for 56 d; B) Paylean diet (9 g/ton) fed for 56 d; C) Paylean fed for 21 d, control for 14 d, then Paylean for 21 d; D) control fed for 7 d, Paylean ...


Comparison Of Water-Based And In-Feed Antimicrobials For Growth Performance Enhancement Of Weanling Pigs, R O. Gottlob, C W. Hastad, C N. Groesbeck, C R. Neill, J D. Schneider, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2005

Comparison Of Water-Based And In-Feed Antimicrobials For Growth Performance Enhancement Of Weanling Pigs, R O. Gottlob, C W. Hastad, C N. Groesbeck, C R. Neill, J D. Schneider, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 350 weanling pigs (initially 13.0 lb and 14 ± 3 d of age, PIC) were used to determine the effects of water-based antimicrobial on nursery pig growth performance. Pigs were given one of 5 experimental treatments: negative control (no antibiotics in the feed or water), positive control diet containing Neo- Terramycin® (140 g/ton Neomycin sulfate, 140 g/ton Oxytetracycline HCl), Neomycin sulfate in the water (24.2 mg of Neomycin sulfate per L), Oxytetracycline in the water (24.2 mg of Oxytetracycline per L), and Neomycin sulfate and Oxytetracycline (Neo/oxy) in the water. Overall ...


Adding Dried Distillers Grains To Swine Diets Affects Feed Preference, C W. Hastad, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz Jan 2005

Adding Dried Distillers Grains To Swine Diets Affects Feed Preference, C W. Hastad, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three studies were conducted to evaluate the effects of dried distillers grains with solubles (DDGS) on feed intake in growing pigs. In all experiments, pigs were housed in 10.5 × 10.3 ft pens with four 1-hole feeders in each pen to allow pigs to choose from four dietary treatments. In Experiment 1, we evaluated the influence of DDGS drying method on palatability of DDGS. Diets were a control corn soybean-meal diet or a corn soybean-meal diet with 30% DDGS from one of two drying techniques (plant dried, hand dried, or not dried). Overall, ADFI was less (P<0.05) for all DDGS drying methods than for the cornsoybean control. For Experiment 2, we compared the influence of DDGS grain source on feed intake. We compared differences between a corn-soybean meal diet and cornsoybean meal diets with 30% DDGS from two corn facilities or one milo facility. Overall, adding 30% DDGS from all sources reduced (P<0.05) ADFI below that of corn-soybean meal diets. In Experiment 3, we used gas chromatography/mass spectrometry (GC/MS) to identify compounds found in DDGS sources from Experiment 2 to determine if any specific compounds are responsible for negative effects on feed intake. We added Furfural, γ-Butyrolactone, and Phenyl ethyl alcohol to corn-soybean meal diets at twice the concentration found in diet with 30% DDGS. We fed a control corn soybean-meal diet or corn soybean-meal with 20 ppm of each compound per ton of complete feed. The addition of each individual compound had no effect (P>0 ...


Effects Of Corn Source And Increasing Lysine Content On Growth Performance In Swine, C W. Hastad, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

Effects Of Corn Source And Increasing Lysine Content On Growth Performance In Swine, C W. Hastad, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three studies were conducted to evaluate the effect on growth performance when NutriDense (ND) corn is used in conjunction with increasing amounts of L-lysine, threonine, and methionine. NutriDense corn is a nutritionally enhanced product containing a stacked set of traits to provide greater nutrient density than is provided by conventional yellow dent corn (YD). In Experiment 1, a total of 320 pigs (initial 40.2 lb) were blocked by weight to one of eight dietary treatments. Pigs were fed corn-soybean meal diets with either YD or ND corn and with 3, 5, 7, or 9 lb of crystalline L-lysine per ...


Nursery Pig Performance In Response To Meal And Pelleted Diets Fed With Irradiated Or Non-Irradiated Spray-Dried Animal Plasma, C N. Groesbeck, J Bergstrom, C R. Neill, K R. Brown, N Z. Frantz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2005

Nursery Pig Performance In Response To Meal And Pelleted Diets Fed With Irradiated Or Non-Irradiated Spray-Dried Animal Plasma, C N. Groesbeck, J Bergstrom, C R. Neill, K R. Brown, N Z. Frantz, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A 25-d trial was conducted to determine the effects of feeding meal and pelleted diets, with or without irradiated spray-dried animal plasma (SDAP; AP 920), on the growth performance in nursery pigs. A total of 192 pigs (initially 13.2 ± 1.9 lb and 21 ± 3 d of age) were used, with 6 pigs per pen and 6 pens per treatment. Pigs were randomly allotted in a 2 × 2 factorial to pens, blocked by weight, and randomly allotted to one of four dietary treatments. The main effects were diet form, meal or pellet, and either irradiated SDAP ...


Effects Of Intermittent Ractopamine Hcl (Paylean1) Use On Pig Growth Performance In Late Finishing, C R. Neill, C N. Groesbeck, K R. Brown, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

Effects Of Intermittent Ractopamine Hcl (Paylean1) Use On Pig Growth Performance In Late Finishing, C R. Neill, C N. Groesbeck, K R. Brown, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 324 pigs (initially 149 lb) were used in a 56-d feeding trial to examine growth performance of pigs as affected by different ractopamine HCl (Paylean) regimens. There were four experimental treatments: A) the control diet fed for 56 d; B) the Paylean diet (9 g/ton) fed for 21 d, then control for 35 d; C) Paylean fed for 21 d, then control for 14 d, and then Paylean for 21 d; and D) control diet 35 d and then Paylean 21 d. Treatment C (feeding Paylean for 21 d, withdrawing it for 14 d, and re-feeding ...


Effects Of Added Synthetic Amino Acids, With Decreasing Amounts Of Fat, On Growth Performance Of Growing Pigs, R O. Gottlob, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effects Of Added Synthetic Amino Acids, With Decreasing Amounts Of Fat, On Growth Performance Of Growing Pigs, R O. Gottlob, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,210 growing gilts (initially 102.4 lb, PIC) were used in a 28-day study in a commercial research facility to determine the effects of added synthetic amino acids, with decreasing amounts of fat, on growth performance of growing pigs. Pigs were fed one of four experimental diets based on cornsoybean meal: 1) control (3% added fat, no synthetic amino acids), 2) 2.38% added fat and high concentrations of synthetic amino acids; 3) 1.90% added fat and high concentrations of synthetic amino acids, and 4) 1.43% added fat and high concentrations of synthetic amino ...


Inadequate Diet Mixing Time Reduces Nursery Pig Performance, C N. Groesbeck, C R. Neill, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

Inadequate Diet Mixing Time Reduces Nursery Pig Performance, C N. Groesbeck, C R. Neill, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Although the importance of thoroughly mixing diets is often emphasized, little data is available to quantify the impact of inadequate mixing on pig growth performance. Therefore, a 28-d trial was conducted to evaluate the effects of mixing time on growth performance of nursery pigs. A total of 180 weanling pigs (13.9 ± 1.8 lb BW, 21± 3 d of age) were used, with 6 pigs per pen and 6 pens per treatment. Experimental treatments consisted of mixing a diet for 0, 30, 60, 120 or 330 s in a horizontal ribbon mixer. Diets were fed in two phases ...


Is The Total Sulfur Amino Acid:Lysine Ratio For Lactating Sows Greater Than 50%?, J D. Schneider, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

Is The Total Sulfur Amino Acid:Lysine Ratio For Lactating Sows Greater Than 50%?, J D. Schneider, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 75 lactating sows were used in a study to determine whether the ratio of total sulfur amino acid (TSAA) to lysine calculated from the NRC (1998) is adequate for lactating sows. Low and high sulfur amino acid diets were formulated to contain a (true ileal digestible (TID) TSAA content of 0.44 or 0.57%, respectively. Both experimental diets were based on corn and soybean meal and were formulated to contain 0.88% TID lysine (0.97% total lysine). Thus, the TID TSAA:lysine ratios were 50 and 65% for the two experimental diets, respectively. Both experimental ...


The Effects Of Different Nutrient Strategies On Reducing Osteochondrosis Dissecans Lesions And Enhancing Cartilage Properties In Pigs, N Z. Frantz, G Andrews, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

The Effects Of Different Nutrient Strategies On Reducing Osteochondrosis Dissecans Lesions And Enhancing Cartilage Properties In Pigs, N Z. Frantz, G Andrews, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 80 gilts (PIC 327 × L1050; 86 lb initial BW) were used in an 84-d study to determine the effects of different nutrients on growth performance, carcass composition, the occurrence of osteochondrosis dissecans (OCD) lesions (a cartilage abnormality), and several cartilage criteria. Eight dietary treatments were formulated, consisting of control diet (standard corn-soy diet) or the control diet with fish oil (3.5%) replacing choice white grease; added proline and glycine (300% and 200% of lysine; added leucine, isoleucine, and valine (BCAA; 200%, 100%, and 100% of lysine, respectively); silicon (1000 ppm); copper and manganese (250 ppm ...


Lactose And Specialty Protein Sources Influence Flow Ability Of Nursery Pig Diets, E E. Carney, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 2005

Lactose And Specialty Protein Sources Influence Flow Ability Of Nursery Pig Diets, E E. Carney, C N. Groesbeck, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effects of lactose products and specialty protein sources on feed flow ability as measured by angle of repose. Angle of repose is the maximum angle in which a pile of ingredient retains its slope. A large angle of repose represents a steeper slope and poorer flow ability. A 70:30 corn-soybean meal blend served as the base to which all specialty ingredients were added. In Experiment 1, six lactose sources were evaluated. Three sources were fine, powdered whey permeates, and the other sources were coarse-ground whey permeate, edible-grade spray-dried whey, and a crystalline ...


Influence Of L-Carnitine On Litter Characteristics From Gilts Harvested At Day 40, 55, And 70 Of Gestation, K R. Brown, B J. Johnson, Michael D. Tokach, J Ernest Minton, A E. Brazle, T E. Burkey, C N. Groesbeck, C R. Neill, J D. Schneider, J C. Woodworth, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2005

Influence Of L-Carnitine On Litter Characteristics From Gilts Harvested At Day 40, 55, And 70 Of Gestation, K R. Brown, B J. Johnson, Michael D. Tokach, J Ernest Minton, A E. Brazle, T E. Burkey, C N. Groesbeck, C R. Neill, J D. Schneider, J C. Woodworth, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 59 gilts were used to determine the effects of supplemental L-carnitine on reproductive performance. Experimental treatments were arranged in a 2 × 3 factorial with main effects of L-carnitine (0 or 50 ppm) and day of gestation (40, 55, or 70). All gilts received a constant feed allowance of 3.86 lb/day and a top-dress containing either 0 or 88 mg of L-carnitine, starting on the first day of breeding and continuing until the day of harvest. Total litter size, total litter weight, and crown-to-rump length of fetuses were not different (P>0.10) between treatments ...


Effects Of Oral Administration Or Feeding Of Sodium Citrate Or Acetate To Pigs On Post-Mortem Glycolysis, Ph Decline, And Pork Quality Attributes, J W. Stephens, Michael E. Dikeman, John A. Unruh, M D. Haub, Michael D. Tokach Jan 2005

Effects Of Oral Administration Or Feeding Of Sodium Citrate Or Acetate To Pigs On Post-Mortem Glycolysis, Ph Decline, And Pork Quality Attributes, J W. Stephens, Michael E. Dikeman, John A. Unruh, M D. Haub, Michael D. Tokach

Kansas Agricultural Experiment Station Research Reports

Previous studies have shown that citrate has the potential to inhibit phosphofructokinase (PFK), a key enzyme in post-mortem glycolysis. The objective of our study was to determine the effects of oral administration and feeding of citrate or acetate to pigs on post-mortem glycolysis, pH, and pork quality attributes. In Experiment 1, citrate, acetate, or water was orally administered to 30 pigs 45 min before stunning (electric plus captive bolt). In Experiment 2, citrate or acetate was fed to 30 gilts in 454 g of feed 60 min before stunning. Ante-mortem treatment had no effect (P > 0.05) on muscle pH ...


Influence Of Feeding Weanmor+® To Sows On Stillborn Rate And Preweaning Mortality, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2005

Influence Of Feeding Weanmor+® To Sows On Stillborn Rate And Preweaning Mortality, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 239 sows (PIC C-22) were used in this experiment. Sows were randomly allotted to one of the two experimental treatments approximately 5 days before their expected farrowing date. Control sows did not receive any topdress; sows on the WEANMOR+® treatment received a single daily topdress of 25 g of WEANMOR+®. Topdressing the sow feed with WEANMOR+® reduced (P<0.06) urine pH, but number of total pigs born, mummied, fostered, died, or weaned were not influenced by treatment (P>0.67). There was a parity group-by-stillborn interaction (P<0.10) in which feeding WEANMOR+® reduced the number of stillborn pigs in the parity 2 to 5 sows, with a numeric increase in stillborns when WEANMOR+® was fed to sows that were parity 6 and over.; Swine Day, 2005, Kansas State University, Manhattan, KS, 2005


Fatty Acid Composition Of The Porcine Conceptus In Response To Maternal Omega-3 Fatty Acid Supplementation, A B. Brazle, B J. Johnson, Evan C. Titgemeyer, S K. Webel, Duane L. Davis Jan 2005

Fatty Acid Composition Of The Porcine Conceptus In Response To Maternal Omega-3 Fatty Acid Supplementation, A B. Brazle, B J. Johnson, Evan C. Titgemeyer, S K. Webel, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

Marine and plant sources of omega-3 fatty acids have been evaluated for their effects on reproductive and other traits. Therefore we evaluated the effects of two sources of polyunsaturated fatty acids on the composition of the pig endometrium and conceptus. Treatments were Control, a corn-soybean meal diet; Flax, Control diet plus ground flax (3.75% of the diet); and PFA, Control plus a protected marine source of polyunsaturated omega-3 fatty acids (Fertilium®, 1.5% of diet). Supplements replaced equal parts of corn and soybean meal in the PFA and Flax diets. Dietary treatments did not affect linoleic acid, linolenic, and ...


Determining The Optimal Lysine:Calorie Ratio For Growth Performance Of Pic Nursery Pigs, J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

Determining The Optimal Lysine:Calorie Ratio For Growth Performance Of Pic Nursery Pigs, J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to evaluate the effects of increasing dietary lysine and energy density on nursery pig performance. Experiment 1 was organized as a combination of two simultaneous experiments,with one set of diets consisting of five treatments with increasing true ileal digestible (TID) lysine (1.11, 1.19, 1.26, 1.34, and 1.42%) and the second set of diets consisting of five treatments with increasing energy density (1,341, 1,408, 1,475, 1,542, and 1,609 kcal/lb). The highest level of both lysine and energy density (1.42% and 1,609 kcal/lb ...


Effect Of Initial Sorting And Amount Of Added Fat On Performance Of Growing-Finishing Pigs Reared In A Commercial Facility, C W. Hastad, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effect Of Initial Sorting And Amount Of Added Fat On Performance Of Growing-Finishing Pigs Reared In A Commercial Facility, C W. Hastad, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to determine whether the amount of dietary energy fed to pigs of different weight categories influenced growth performance, market weight, and economic return in a commercial grow-finish facility. In Experiment 1, a total of 1,032 pigs with initial weight of 67.7 lb were individually weighed, fitted with electronic ear tags, and sorted into ten, 5-lb weight categories. Pigs were then allotted to pens lighter and heavier then the barn mean or to pens remixed to create a normal distribution around the mean. To complete the 2 × 3 factorial, pigs were fed corn-soybean meal ...


A Comparison Of Bygholm Feed Sieve To Standard Particle-Size Analysis Techniques, C K. Benz, C N. Groesbeck, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

A Comparison Of Bygholm Feed Sieve To Standard Particle-Size Analysis Techniques, C K. Benz, C N. Groesbeck, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three experiments were conducted to evaluate the Bygholm Feed Sieve particle size tester. The Bygholm Feed Sieve is an 11 inch × 2.25 inch × 4.25 inch plastic box divided into four compartments by three different screen sizes (3,000-, 2,000-, and 1,000-micron mesh). In Experiment 1, particle size was determined for 20 ground corn samples with a Ro-Tap 13-sieve stack (53- to 3,350-micron Tyler mesh screens).The particle sizes ranged from 543 to 1,741 microns. Samples were analyzed for particle size with the standard Bygholm Feed Sieve, operated according to the manufacturer’s ...


The Effects Of Meal Transition Diets On Nursery Pig Growth Performance In A Commercial Environment, C N. Groesbeck, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

The Effects Of Meal Transition Diets On Nursery Pig Growth Performance In A Commercial Environment, C N. Groesbeck, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 2,016 pigs (initially 12.6 lb and 18 ± 2 d of age) were used in a 28-d growth assay to evaluate the current feed-budget allocations for SEW, Transition, and Phase 2 diets fed in meal form in a commercial environment. Pigs were allotted to one of six treatments, with a variety of feed budgets: 1) pelleted diets with 1 lb/pig of SEW diet (6.7% plasma) and 3 lb/pig of Transition diet (2.5% plasma); 2) pelleted diets with 0.5 lb/pig of SEW diet (6.7% plasma) and 1 lb/pig ...


Influence Of L-Carnitine On Growth And Plasma Igf-I From Gilts Harvested At Three Gestation Lengths, K R. Brown, B J. Johnson, N Z. Frantz, R O. Gottlob, C N. Groesbeck, C W. Hastad, C R. Neill, J D. Schneider, M G. Young, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 2005

Influence Of L-Carnitine On Growth And Plasma Igf-I From Gilts Harvested At Three Gestation Lengths, K R. Brown, B J. Johnson, N Z. Frantz, R O. Gottlob, C N. Groesbeck, C W. Hastad, C R. Neill, J D. Schneider, M G. Young, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 59 gilts were used to determine the effects of supplemental L-carnitine on gilt growth and maternal insulin-like growth factor- I (IGF-I). Experimental treatments were arranged in a 2 × 3 factorial with main effects of L-carnitine (0 or 50 ppm) and day of gestation (40, 55, or 70). All gilts received a constant feed allowance of 3.86 lb/day and a topdress containing either 0 or 88 mg of Lcarnitine, starting on the first day of breeding. No differences (P>0.05) between treatments were observed for BW, estimated protein mass, or estimated fat mass at ...


Effects Of Increasing Dietary Lysine On Growth Performance Of Pigs Fed Ractopamine Hcl (Paylean®), C R. Neill, C W. Hastad, J L. Usry, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

Effects Of Increasing Dietary Lysine On Growth Performance Of Pigs Fed Ractopamine Hcl (Paylean®), C R. Neill, C W. Hastad, 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 919 gilts (PIC L337 × C22) were used in a 21-d trial conducted in a commercial research facility to determine growth and carcass effects of ractopamine HCl (Paylean®; 6.5 g/ton) and different levels of lysine. The diets were formulated to contain 0.75, 0.85, 0.95, 1.05, 1.15, and 1.25% true ileal digestible (TID) lysine to determine the lysine requirement for pigs fed ractopamine. These TID lysine levels correspond to 0.86, 0.97, 1.08, 1.19, 1.29, and 1.40% total lysine. From d 0 to 14, pigs ...


Effects Of Different Dosages Of Water-Based Neomycin Sulfate On Growth Performance Of Weanling Pigs, R O. Gottlob, C W. Hastad, C N. Groesbeck, C R. Neill, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effects Of Different Dosages Of Water-Based Neomycin Sulfate On Growth Performance Of Weanling Pigs, R O. Gottlob, C W. Hastad, C N. Groesbeck, C R. Neill, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 360 weanling pigs (initially 14.1 lb and 21 ± 3 d of age, PIC) were used to determine the effects of different rates of waterbased medication on nursery pig growth performance. Pigs were given one of eight experimental treatments: negative control (no antibiotics in the feed or water); positive control with Neo-Terramycin® in the feed (140 g/ton Neomycin sulfate, 140 g/ton Oxytetracycline HCl); 38.0, 75.5, or 113.5 mg of Neomycin sulfate per L of water; 100 or 200 g/ton of Neomycin sulfate in the feed; and Neo-Terramycin® in the feed ...


Effects Of Water-Based Citric Acid On Growth Performance And Water Disappearance Of Weanling Pigs, R O. Gottlob, C N. Groesbeck, J M. Deruochey, C R. Neill, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effects Of Water-Based Citric Acid On Growth Performance And Water Disappearance Of Weanling Pigs, R O. Gottlob, C N. Groesbeck, J M. Deruochey, C R. Neill, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 399 weanling pigs (initially 12.2 lb and 14 ± 3 d of age, PIC) were used to determine the effects of water-based citric acid on nursery pig growth performance and water disappearance. Pigs were given a common diet and one of two experimental water treatments: 1) negative control, water containing no additives; and 2) water containing 0.55 g per L citric acid. Overall (d 0 to 10 after weaning), there were no differences in growth performance between pigs provided water or water with added citric acid. In addition, water disappearance was similar between treatments for ...


A Review Of Oxytocin Use For Sows And Gilts, S K. Linneen, J M. Benz, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz Jan 2005

A Review Of Oxytocin Use For Sows And Gilts, S K. Linneen, J M. Benz, Joel M. Derouchey, Robert D. Goodband, Michael D. Tokach, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Oxytocin is frequently used to decrease farrowing time and birth interval as an aid to prevent stillbirths, but recent research has shown that oxytocin use can increase the number of pigs stillborn when used too early in the birth process. The research indicated that the reason for increased stillbirths was an increased number of ruptured umbilical cords, leading to compromise of the pigs’ oxygen supply during the birth process. Oxytocin usage should be limited to older-parity sows and the last half of the birth order.; Swine Day, 2005, Kansas State University, Manhattan, KS, 2005


Porcine Reproductive And Respiratory Syndrome: Characteristic Features Of The Infected Fetus, Raymond R. Rowland R, Jerome C. Nietfeld, Steven S. Dritz Jan 2005

Porcine Reproductive And Respiratory Syndrome: Characteristic Features Of The Infected Fetus, Raymond R. Rowland R, Jerome C. Nietfeld, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Pregnant gilts were infected at 90 days of gestation with porcine reproductive and respiratory virus (PRRSV) isolate SD-23983. Fetuses recovered between 109 and 112 days of gestation were analyzed for the presence of PRRSV. The results showed that not all fetuses were infected, and that infected fetuses tended to be clustered within the uterine horns, suggesting that virus is spread from fetus to fetus. Even though affected litters exhibited different degrees of gross pathology, the presence of an anatomical abnormality was not an identifier of an infected fetus. Analysis of virus replication in individual tissues identified the thymus as the ...


The Optimal True Ileal Digestible Lysine And Total Sulfur Amino Acid Requirement For Nursery Pigs Between 20 And 50 Lb, J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2005

The Optimal True Ileal Digestible Lysine And Total Sulfur Amino Acid Requirement For Nursery Pigs Between 20 And 50 Lb, J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

An experiment involving 360 pigs (PIC, avg. BW = 22.0 lb) was conducted to determine the appropriate true ileal digestible (TID) lysine and total sulfur amino acid (TSAA) requirement of nursery pigs and, consequently, to determine the optimal TSAA:lysine ratio. This trial was organized as a combination of two simultaneous experiments, with one set of diets consisting of five increasing TID lysine concentrations (1.05, 1.15, 1.25, 1.35, and 1.45%) and the second set of diets consisting of five increasing TID TSAA concentrations (0.61, 0.69, 0.76, 0.83, and 0.90%). The ...


Effects Of Intermittent Usage Of Water-Based Neomycin Sulfate On The Growth Performance Of Weanling Pigs, R O. Gottlob, C R. Neill, C N. Groesbeck, K R. Brown, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2005

Effects Of Intermittent Usage Of Water-Based Neomycin Sulfate On The Growth Performance Of Weanling Pigs, R O. Gottlob, C R. Neill, C N. Groesbeck, K R. Brown, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 360 weanling pigs (initially 11.4 lb and 18 ± 3 d of age, PIC) were used to determine the effects of intermittent use of water-based medication on nursery pig growth performance. Pigs were given one of eight experimental treatments: negative control (no antibiotics in the feed or water); positive control with Neo-Terramycin® in the feed (140 g/ton Neomycin sulfate, 140 g/ton Oxytetracycline HCl); continuous use of either 38.0 or 75.5 mg Neomycin sulfate per L of water; use of either 38.0 or 75.5 mg of Neomycin sulfate per L of ...


The Effects Of Dietary Glutamine, Glycine, And Sodium Chloride Concentration On Nursery Pig Growth Performance, C N. Groesbeck, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2005

The Effects Of Dietary Glutamine, Glycine, And Sodium Chloride Concentration On Nursery Pig Growth Performance, C N. Groesbeck, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

We conducted a trial to evaluate the effects of feeding added salt (0.38% in addition to the 0.35% already added to the diet) and a 0.70% addition of a blend of 50% glutamine and 50% glycine to weanling pigs as a substitute for spray-dried animal plasma. A total of 216 pigs (initial BW 12.4 ± 1.9 lb and 21 ± 2 d of age) were used, with six pigs per pen and six pens per treatment. Pigs were randomly allotted to pens, blocked by weight, and assigned to one of the six dietary treatments. The ...


Growth Performance Of Nursery Pigs Fed Biosaf Yeast, Alone Or In Combination With An In-Feed Antimicrobial, B M. Hildabrand, T E. Burkey, K A. Skjolaas-Wilson, B J. Johnson, J Ernest Minton, Steven S. Dritz Jan 2005

Growth Performance Of Nursery Pigs Fed Biosaf Yeast, Alone Or In Combination With An In-Feed Antimicrobial, B M. Hildabrand, T E. Burkey, K A. Skjolaas-Wilson, B J. Johnson, J Ernest Minton, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 280 pigs were used in a 28-d growth study to evaluate the effects of feeding the antimicrobial carbadox, BIOSAF (0.4%), and the combination of carbadox and BIOSAF yeast (0.15%) in nursery pig diets. Over the length of the entire trial, pigs fed the diet containing carbadox alone had greater ADG than did pigs fed the control diet or the diet containing 0.4% BIOSAF. Overall, pigs fed the diet containing both carbadox and 0.15% BIOSAF had greater ADG than did pigs fed the control diet or the diet containing 0.4% BIOSAF (P<0.04), although their growth performance did not differ from that of pigs fed carbadox alone. Antibody titers in response to routine vaccination against Mycoplasma hyopneumoniae were not affected by dietary treatment. There was no evidence that BIOSAF improved growth performance of nursery pigs, either alone or in combination with the carbadox. It is possible that the interactive effects of BIOSAF that have been reported for other in-feed antibiotics are not present when BIOSAF is combined with carbadox, or perhaps interactive effects are only observed when carbadox itself exerts a more potent stimulation of ADG in nursery pigs.; Swine Day, 2005, Kansas State University, Manhattan, KS, 2005


Determining The Threonine Requirement Of The Lactating Sow, J D. Schneider, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2005

Determining The Threonine Requirement Of The Lactating Sow, J D. Schneider, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 182 lactating sows were used in a study to determine the threonine requirement, and the relative difference in resulting performance of lactation diets with high concentrations of crystalline amino acids, compared with a conventional corn-soybean meal diet. All experimental diets were based on corn-soybean meal and formulated to contain 0.88% true ileal digestible (TID) lysine (1.00 and 0.97% total lysine for the control treatment and crystalline amino acid treatments, respectively). The control treatment was a conventional corn-soybean meal diet with no added crystalline amino acids. The other five experimental diets contained 0.37% L-lysine ...