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2006

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The Effects Of Electron Beam And Gamma Ray Irradiation Levels In Spray-Dried Animal Plasma On Nursery Pig Performance (2006), C N. Groesbeck, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2006

The Effects Of Electron Beam And Gamma Ray Irradiation Levels In Spray-Dried Animal Plasma On Nursery Pig Performance (2006), C N. Groesbeck, Joel M. Derouchey, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 385 pigs (initially 13.4 ± 2.2 lb and 21 ± 3 d of age) were used in a 28-d trial to determine the effects of electron beam and gamma ray irradiation dosage of spray-dried animal plasma (plasma) on nursery pig performance. Pigs were allotted to pen and blocked by weight by using an incomplete block design with either 7 or 8 replications per treatment. Dietary treatments were randomly allotted to pen within block. Ten dietary treatments were fed from d 0 to 14, including: a negative control diet with no added plasma, a positive control diet with …

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Effects Of Increasing Amounts Of True Ileal Digestible Lysine On The Growth Performance Of Growing-Finishing Pigs Reared In A Commercial Facility (2006), R O. Gottlob, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2006

Effects Of Increasing Amounts Of True Ileal Digestible Lysine On The Growth Performance Of Growing-Finishing Pigs Reared In A Commercial Facility (2006), R O. Gottlob, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two 28-d experiments using 2,259 gilts were conducted to determine the growth and economic effects of increasing dietary true ileal digestible (TID) lysine in commercially reared growing-finishing pigs. Both experiments included 6 dietary treatments of incrementally increasing TID lysine in diets containing 6% added fat. The dietary TID lysine ranged from below to above our current requirement estimates to determine if there were any changes in lysine requirements during the past five years. In Exp. 1, pigs were initially 132 lb and averaged 192 lb at the end of the 28-day study. The TID lysine rates were 0.65, 0.75, 0.85, …

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Effects Of Replacing Corn With Triticale In Diets For Nursery And Finishing Pigs (2006), C R. Monge, Terry L. Gugle, C Feoli, Joe D. Hancock Jan 2006

Effects Of Replacing Corn With Triticale In Diets For Nursery And Finishing Pigs (2006), C R. Monge, Terry L. Gugle, C Feoli, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

Two experiments were conducted to determine the effects of replacing corn (none, 1/3, 2/3, and all) with triticale on growth performance and nutrient digestibility in pigs. For the 34-d nursery experiment, 168 weanling pigs (avg initial weight of 14.8 lb and avg initial age of 21 d) were used. On d 24, fecal samples were collected to allow determination of nutrient digestibility. Overall, pigs consuming diets with 1/3 of the corn replaced with triticale improved ADG (cubic effect, P0.18). For the finishing experiment, 184 pigs (avg initial weight of 131 lb) were used, and fecal samples were collected on d …

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Effects Of Water-Soluble And In-Feed Organic Acids On The Growth Performance Of Weanling Pigs (2006), R O. Gottlob, C R. Neill, C N. Groesbeck, J D. Schneider, N Z. Frantz, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2006

Effects Of Water-Soluble And In-Feed Organic Acids On The Growth Performance Of Weanling Pigs (2006), R O. Gottlob, C R. Neill, C N. Groesbeck, 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 360 weanling pigs (initially 11.5 lb and 18 ± 3 d of age, PIC) were used in a 42-d growth assay to determine the effects of water-soluble antimicrobials and organic acids in feed and/or water on nursery pig growth performance. Pigs were allotted to one of 9 experimental treatments: 1) control (no feed or water antimicrobials or acids); 2) water containing 38 mg/L neomycin sulfate; 3) water containing 0.06% Activate3 WD; 4) water containing 0.12% Activate WD; 5) feed containing Neo-Terramycin4 (140 g/ton neomycin sulfate, 140 g/ton oxytetracycline HCl; neo/oxy); 6) feed containing 0.50% Activate DA; 7) …

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Effects Of Xylanase And Wheat Middlings In Diets For Finishing Pigs (2006), C Feoli, C R. Monge, C L. Jones, C W. Starkey, Joe D. Hancock Jan 2006

Effects Of Xylanase And Wheat Middlings In Diets For Finishing Pigs (2006), C Feoli, C R. Monge, C L. Jones, C W. Starkey, Joe D. Hancock

Kansas Agricultural Experiment Station Research Reports

A total of 312 finishing pigs (average initial weight of 142 lb) were used in a 62-d experiment to determine the effects of xylanase and wheat middlings on growth performance, nutrient digestibility, and carcass characteristics. Treatments were a control diet based on corn-soybean meal, without and with 750 g/ton xylanase product (to supply none and 1,050 units of xylanase activity per lb of diet), and wheat middlings (none, 15%, and 30%) arranged as a 2 × 3 factorial. The pigs were sorted by sex and ancestry and blocked by weight, with 13 pigs/pen and 4 pens/treatment. Feed and water were …

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Growth Performance Of Nursery Pigs Fed Biosaf In Combination With In-Feed Antimicrobials (2006), B M. Hildabrand, T E. Burkey, K A. Skjolaas, B J. Johnson, J Ernest Minton, Steven S. Dritz Jan 2006

Growth Performance Of Nursery Pigs Fed Biosaf In Combination With In-Feed Antimicrobials (2006), B M. Hildabrand, T E. Burkey, K A. Skjolaas, B J. Johnson, J Ernest Minton, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Weaned pigs (n = 240; initial BW 13.5 lb) were used in a 28-d growth study. Pigs were blocked by sex and BW, and were assigned randomly to 1 of the 5 dietary treatments: control (no added antimicrobials or yeasts), Neo- Terramycin4 (Neo-Terra; control diet plus Neo-Terra), Denagard5 (control diet plus Denagard PLUS), Neo-Terra+BIOSAF (control diet plus Neo-Terra and 0.15% BIOSAF yeast), or Denagard+BIOSAF (control diet plus Denagard and 0.15% BIOSAF yeast). There were 8 pens per treatment and 6 pigs per pen. Treatments were applied in both Phase 1 (d 0 to 14) and Phase 2 (d 15 to …

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Influence Of Nutridense Low Phytate Corn And Added Fat On Growing-Finishing Pig Growth Performance (2006), S K. Linneen, R O. Gottlob, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2006

Influence Of Nutridense Low Phytate Corn And Added Fat On Growing-Finishing Pig Growth Performance (2006), S K. Linneen, R O. Gottlob, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to evaluate the effect of NutriDense Low Phytate corn in conjunction with increasing amounts of added fat on growing and finishing pig performance. NutriDense Low Phytate corn is similar to NutriDense corn, but with greater available phosphorus content because it has less phytate phosphorus. Both experiments were conducted at a commercial swine research facility in southwest Minnesota. In Exp. 1, 1,162 gilts (initially 98.3 lb) were used in a 28-d study. Pigs were blocked by weight, and were randomly allotted to one of six dietary treatments. Pigs were fed diets based on corn-soybean meal with yellow …

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Investigation Into The Effects Of Feeding Schedule On Body Condition, Aggressiveness, And Reproductive Failure In Group Housed Sows (2006), J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2006

Investigation Into The Effects Of Feeding Schedule On Body Condition, Aggressiveness, And Reproductive Failure In Group Housed Sows (2006), J D. Schneider, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 208 sows and 288 gilts (PIC Line C29) were used to determine the influence of feeding frequency (2 versus 6 times per day) in gestation on performance and welfare measurements. The experiment was conducted on a commercial sow farm in northeast Kansas that typically housed gestating sows and gilts in pens. Treatments consisted of feeding similar amounts of feed to each sow or gilt over 2 (07:00 and 15:30) or 6 meals per day (07:00, 07:30, 08:00, 15:30, 16:00, and 16:30 hours). There were 8 sows or 12 gilts in each pen. Gilts and sows were moved …

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Isoleucine In Segregated Early Weaning And Transition Diets (2006), S K. Linneen, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2006

Isoleucine In Segregated Early Weaning And Transition Diets (2006), S K. Linneen, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to test the effect of isoleucine amount and source on nursery pig performance. In Exp. 1, a total of 194 pigs were used in a 10-d study in a research facility to test the effects of isoleucine rate in high or low lysine diets. Dietary treatments included either high or low lysine and high or low isoleucine in a 2 × 2 factorial arrangement. High-lysine diets were formulated to 1.56% TID lysine, and low-lysine diets were formulated to 1.30% TID lysine. Highisoleucine diets contained approximately 60% TID isoleucine:lysine, whereas low-isoleucine diets contained approximately 49% isoleucine: lysine. …

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L-Carnitine Supplementation To Gestating Gilts Alters The Igf Axis In Porcine Embyronic Myoblasts (2006), K R. Brown, B J. Johnson, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen Jan 2006

L-Carnitine Supplementation To Gestating Gilts Alters The Igf Axis In Porcine Embyronic Myoblasts (2006), K R. Brown, B J. Johnson, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen

Kansas Agricultural Experiment Station Research Reports

We determined the effects of supplemental L-carnitine on the insulin-like growth factor (IGF) system in porcine embryonic myoblasts (PEM) from gilts. Forty gilts (BW = 303.6 lb) were allotted to 1 of 4 treatments that were arranged in a 2 × 2 factorial, with main effects of L-carnitine (0 or 50 ppm) and day of gestation (55 or 70). All gilts were fed 3.86 lb/day and a top-dress containing either 0 or 50 ppm of L-carnitine, starting on the first day of breeding and continuing through the allotted gestation length. At d 55 or 70 of gestation, fetuses were removed …

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Predicting Growth Rates Of Adult Working Boars In A Commercial Boar Stud (2006), R C. Sulabo, J Quackenbush, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2006

Predicting Growth Rates Of Adult Working Boars In A Commercial Boar Stud (2006), R C. Sulabo, J Quackenbush, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

There is almost no information on ideal growth rates for adult boars, but estimates can be made if the relationship between boar weight and age is known. Therefore, this study was aimed to predict growth rates in adult working boars in a commercial boar stud. A total of 214 adult working boars from two genetic lines in a commercial boar stud were individually weighed on a platform scale. Age of the boar was recorded at the time of weighing. A regression equation to predict boar weight as a function of age was developed by using PROC REG of SAS. The …

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Validation Of Flank-To-Flank Measurements For Predicting Boar Weight (2006), R C. Sulabo, J Quackenbush, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz Jan 2006

Validation Of Flank-To-Flank Measurements For Predicting Boar Weight (2006), R C. Sulabo, J Quackenbush, Jim L. Nelssen, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Allometric relationships, in which linear body dimensions are expressed as a function of body weight, are commonly used in growth studies. Previous work at Kansas State University showed a positive correlation between flank-to-flank measurement and sow body weight. Prediction equations were developed to estimate sow weight, but it is not known if the same equation will be valid in estimating body weight among other groups of pigs, such as boars. The objective of this study was to validate the use of flank-to-flank measurement in predicting boar weight, and to determine if the allometric equation for gestating sows can also be …

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Porcine Umbilical Cord Matrix Stem Cells (2006), R Carlin, Deryl L. Troyer, Mark L. Weiss, Bruce D. Schultz, Duane L. Davis Jan 2006

Porcine Umbilical Cord Matrix Stem Cells (2006), R Carlin, Deryl L. Troyer, Mark L. Weiss, Bruce D. Schultz, Duane L. Davis

Kansas Agricultural Experiment Station Research Reports

Since their discovery in 2000, pig umbilical cord stem cells have been studied at KState. The studies have been expanded to included other species, including humans. In addition, other research groups around the world have published scientific studies with these cells. Their unique attributes include being plentiful, easily collected, and (in humans) non-controversial. Initial work in the pig has concentrated on characterizing the cells to understand how they compare with other populations of stem cells. Results indicate that they have several characteristics in common with other primitive stem-cell populations, and that they are relatively easy to work with in the …

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Effects Of Dried Distillers Grain With Solubles On Nursery Pig Performance (2006), S K. Linneen, M U. Steidinger, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2006

Effects Of Dried Distillers Grain With Solubles On Nursery Pig Performance (2006), S K. Linneen, M U. Steidinger, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 482 pigs (initial BW of 21.9 lb) were used in a 22-d study to determine the effects of dried distillers grains with solubles (DDGS) on growth performance of nursery pigs reared in a commercial environment. Pigs were allotted to one of two dietary treatments based on corn-soybean meal and containing either 0 or 10% DDGS. There was a tendency for pigs fed the diet containing 10% DDGS to have decreased (P<0.13) ADG, compared with pigs not fed DDGS (0.95 vs. 0.88 lb/d). Overall (d 0 to 22), there were no differences in ADFI, F/G, or final weight (P>0.21). For economic analysis, the DDGS price was compared at $109, $93, or $80/ton. There were no differences in feed cost per pound of gain in …

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Effects Of Dried Distillers Grain With Solubles On Growing-Finishing Pig Performance (2006), S K. Linneen, R O. Gottlob, R G. Main, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2006

Effects Of Dried Distillers Grain With Solubles On Growing-Finishing Pig Performance (2006), S K. Linneen, R O. Gottlob, R G. Main, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Three experiments were conducted to determine the effects of increasing dried distiller's grains with solubles (DDGS) on growth performance and palatability in growing-finishing pigs. In Exp. 1, a total of 1,050 pigs (initially 104.9 lb) were used in a 28-d study in May 2002. Pigs were fed diets with either 0 or 15% DDGS and 0, 3, or 6% added fat, for a 2 × 3 factorial arrangement. Overall, there were no DDGS × fat content interactions (P = 0.20). There was an improvement (linear, P<0.01) in ADG and F/G with increasing added fat and no difference in growth performance between pigs fed 0 or 15% DDGS. In Exp. 2, a total of 1,038 pigs (initially 102.1 lb) were used in a 56-d study in August 2005. Pigs were fed diets with either 0, 10, 20, or 30% DDGS from the same ethanol plant as in Exp. 1. Overall (d 0 to 56), there was a trend for decreased ADG (linear, P<0.10) and ADFI (linear, P<0.06) as DDGS increased. The greatest reduction occurred in pigs fed more than 10% DDGS. In Exp. 3, a total of 120 growing pigs (initially 48.7 lb) were used in a 21-d feed preference study in October 2005. Pigs were randomly allotted to a pen with 4 feeders, each containing a separate dietary treatment. Pigs were offered diets based on corn-soybean meal, with 0, 10, 20, or 30% DDGS from the same source as in Exp. 1 and 2. For all periods (d 0 to 7, 7 to 21, and 0 to 21), there was a decrease in ADFI (quadratic, P<0.01) as DDGS increased in the diet. The most dramatic decrease was observed between 0 and 10% DDGS. Experiment 1 showed no difference in growth performance in pigs fed 0 or 15% DDGS. In Exp 2, at DDGS contents higher than 10%, there were trends for decreased ADG and ADFI; in Exp. 3, ADFI decreased with increasing DDGS in the diet. In summary, DDGS from the ethanol plant tested can be used at 10 to 15% in finishing diets without reducing pig performance. Higher percentages of DDGS in the diet decreased ADFI in growing and finishing pigs.; Swine Day, 2006, Kansas State University, Manhattan, KS, 2006

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Effect Of Mixing Pigs Or Maintaining Pen Integrity On The Response To Growing-Finishing Space Allocation (2006), M C. Brumm, L J. Johnston, K Stalder, Ncera-89 Committee On Swine Mangement, Robert D. Goodband Jan 2006

Effect Of Mixing Pigs Or Maintaining Pen Integrity On The Response To Growing-Finishing Space Allocation (2006), M C. Brumm, L J. Johnston, K Stalder, Ncera-89 Committee On Swine Mangement, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

A cooperative study using 906 pigs was conducted to evaluate either mixing pigs or maintaining pen integrity during the move from nursery to finishing, and its effect on finishing space allowance. Treatments were arranged in a 2 × 2 factorial, with main effects of mixing or maintaining pen integrity as pigs were moved to finishing facilities (BW 54.9 lb) and providing either 6.0 or 8.0 ft2 per pig. There were 8 pens per block and 7 blocks. In 2 pens, when moving from nursery to finishing, pen integrity was maintained and pens were allocated either 6.0 or 8.0 ft2 per …

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Effect Of Irradiated Protein Sources, Fed In Meal Or Pelleted Diets, On Nursery Pig Performance (2006), C N. Groesbeck, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2006

Effect Of Irradiated Protein Sources, Fed In Meal Or Pelleted Diets, On Nursery Pig Performance (2006), C N. Groesbeck, Michael D. Tokach, Joel M. Derouchey, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 350 pigs (initially 10.8 ± 2.1 lb and 21 ± 3 d of age) were used in a 22-d trial to determine the effects of feeding irradiated protein sources (spray-dried animal plasma, soybean meal, fish meal, or all three), in meal and pelleted diets, on the growth performance of nursery pigs. Pigs were blocked by weight, with 5 pigs/pen and 7 pens/treatment. From d 0 to 11, pigs were fed 1 of 10 experimental treatments, which consisted of the same diet fed in either meal or pelleted form, containing either no irradiated protein sources or containing irradiated …

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The Effect Of Dietary Nutrients On Osteochondrosis Lesions And Cartilage Properties In Pigs (2006), N Z. Frantz, G A. Andrews, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2006

The Effect Of Dietary Nutrients On Osteochondrosis Lesions And Cartilage Properties In Pigs (2006), N Z. Frantz, G A. 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 × 1050; 86 lb initial BW) were used in an 84-d study to determine the effect of different nutrients on the occurrence of osteochondrosis (OC) lesions, several cartilage criteria, growth performance, and carcass composition. Eight dietary treatments were formulated, consisting of 1) control (standard corn-soy diet, 3.5% choice white grease (CWG)) or the control diet plus 2) fish oil (3.5%) replaced CWG, 3) proline and glycine (Pro/Gly; 300 and 200% of lysine), 4) leucine, isoleucine, and valine (BCAA; 200, 100, and 100% of lysine, respectively), 5) silicon (1,000 ppm), 6) copper and manganese …

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Determining The Total Sulfur Amino Acid To Lysine Requirement Of The Lactating Sow (2006), J D. Schneider, Jim L. Nelssen, Michael D. Tokach, Robert D. Goodband, Joel M. Derouchey, Steven S. Dritz Jan 2006

Determining The Total Sulfur Amino Acid To Lysine Requirement Of The Lactating Sow (2006), 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 163 sows were used in a study to determine the requirement for total sulfur amino acids (TSAA), relative to lysine, during lactation. All experimental diets were cornsoybean meal-based and formulated to contain 0.88% true ileal digestible (TID) lysine (0.97% total lysine). The experimental diets contained 0.37% L-lysine HCl, with other crystalline amino acids added to ensure that TSAA was first limiting. The dietary TID TSAA rates were formulated to 0.44, 0.48, 0.53, 0.57, and 0.62%, corresponding to 50, 55, 60, 65, and 70% of lysine, respectively. Sows farrowed in six farrowing groups, and were randomly allotted to …

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Comparison Of Particle Size Analysis Of Ground Grain With, Or Without, The Use Of A Flow Agent (2006), W Diederich, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2006

Comparison Of Particle Size Analysis Of Ground Grain With, Or Without, The Use Of A Flow Agent (2006), W Diederich, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

The American Society of Biological and Agricultural Engineers' standard for particle size analysis indicates that the analysis can be conducted with or without the use of a flow agent. Because of this allowed variation in procedures, particle size analysis results can be variable and difficult to interpret, depending on whether the laboratory uses a flow agent or not. Therefore, a retrospective analysis was made of 603 samples of ground corn analyzed for particle size with, or without, 0.5 g of synthetic amorphous precipitated silica (Sipernat® 22-S) per 100 g of sample. Results of both analyses were compared with a Method …

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Effects Of A Liquid (Neolac1) And Dry Feed Combination Fed In Varying Durations On Weanling Pig Performance, R C. Sulabo, C N. Groesbeck, J M. Benz, D Mckilligan, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz Jan 2006

Effects Of A Liquid (Neolac1) And Dry Feed Combination Fed In Varying Durations On Weanling Pig Performance, R C. Sulabo, C N. Groesbeck, J M. Benz, D Mckilligan, Robert D. Goodband, Michael D. Tokach, Joel M. Derouchey, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

One hundred eighty pigs (initially 11.4 lb and 18 days of age) were used in a 28-d growth assay to determine the effects on nursery pig performance of combining a complete liquid feed (Neolac) with dry feed for various durations. Pigs were randomly allotted to experimental treatments consisting of: dry feed only (control) or Neolac provided for a period of 3 and 7 days in combination with dry feed. Overall, pigs fed the liquid-dry feed combination had a greater ADG (P<0.01) than did the dry-fed pigs until d 7 after weaning. Weight gains obtained during this period were not maintained until the end of the nursery period, regardless of the duration of liquid feeding. Both dry matter intake (DMI) and DM feed/gain increased (P<0.01) as a result of liquid feeding. Pigs provided liquid feed for 7 d also had a higher DM feed/gain (P<0.06) than that of the dry-fed controls in all periods. Feeding a liquid complete diet for various durations, in combination with dry feed, only had positive effects on growth rate immediately after weaning, but did not have lasting gains to influence overall nursery performance. Further experiments are needed to determine whether the improvement in initial feed intake with liquid feeding will reduce "starve-outs" and mortality.; Swine Day, 2006, Kansas State University, Manhattan, KS, 2006

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An Investigation Into The Mechanisms Of Action Of Revalor-S And Optaflexx In Growing Steers (2006), D.K. Walker, James J. Higgins, B.J. Johnson, Evan C. Titgemeyer Jan 2006

An Investigation Into The Mechanisms Of Action Of Revalor-S And Optaflexx In Growing Steers (2006), D.K. Walker, James J. Higgins, B.J. Johnson, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to evaluate the interaction between steroidal implantation and feeding ractopamine on nitrogen retention, blood metabolites, and messenger RNA (mRNA) expression. Six Holstein steers (initially weighing 509 lb) were implanted or not with Revalor-S (120 mg trenbolone acetate plus 24 mg estradiol-17β), and all were fed no ractopamine for the initial 28 days and then 2 grams per steer daily of Optaflexx (200 mg/day ractopamine-HCl) on days 29 through 56. Implantation increased nitrogen retention. Optaflexx increased nitrogen retention in nonimplanted steers, but did not significantly increase retained nitrogen in implanted steers. Implantation increased serum insulin-like growth factor …

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Effect Of Implant Strategy And Optaflexx Administration On Feedlot Performance And Skeletal Muscle Β-Adrenergic Receptor And Insulin-Like Growth Factor I Mrna Abundance (2006), E.K. Sisson, J.P. Hutcheson, D.A. Yates, B.J. Johnson Jan 2006

Effect Of Implant Strategy And Optaflexx Administration On Feedlot Performance And Skeletal Muscle Β-Adrenergic Receptor And Insulin-Like Growth Factor I Mrna Abundance (2006), E.K. Sisson, J.P. Hutcheson, D.A. Yates, B.J. Johnson

Kansas Agricultural Experiment Station Research Reports

Feedlot heifers (1,147) weighing 622 lb were used to evaluate the effects of implant strategy and Optaflexx administration. Implant treatments included Revalor-200 (R200) at arrival, or Revalor-IH at arrival and reimplantation with Finaplix-H on day 58 (RF). Optaflexx (200 mg/heifer daily of ractopamine-HCl) was fed the last 28 days. Treatments were randomly assigned to 16 pens. After 182 days, heifers were slaughtered, at which time carcass data were obtained and semimembranosus muscle tissue was excised for RNA isolation. Optaflexx administration significantly increased average daily gain (0.7 lb/day), feed efficiency (3%), hot carcass weight (10.5 lb), and ribeye area (0.42 square …

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Effect Of Optaflexx And Days On Feed On Feedlot Performance, Carcass Characteristics, And Skeletal Muscle Gene Expression In Yearling Steers (2006), S.J. Winterholler, G.L. Parsons, E.K. Sissom, J.P. Hutcheson, R.S. Swingle, B.J. Johnson Jan 2006

Effect Of Optaflexx And Days On Feed On Feedlot Performance, Carcass Characteristics, And Skeletal Muscle Gene Expression In Yearling Steers (2006), S.J. Winterholler, G.L. Parsons, E.K. Sissom, J.P. Hutcheson, R.S. Swingle, B.J. Johnson

Kansas Agricultural Experiment Station Research Reports

Two-thousand two-hundred fifty-two yearling steers (690 lb) were used to evaluate the effects of Optaflexx and days on feed on finishing steer performance and carcass characteristics. Treatment groups included serial harvest dates of 150, 171, or 192 days. Within each harvest date, steers either received Optaflexx (200 mg/steer daily of ractopamine-HCl) for the final 28 days, or did not receive Optaflexx. All steers were initially implanted with Revalor-IS and were re-implanted with Revalor-S after 75 days on feed. At harvest, muscle samples from the inside round were obtained for mRNA analysis of the β- adrenergic receptors (AR). Optaflexx increased daily …

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Examining Death Loss In Kansas Feedlots, A. Babcock, R. Jones, Michael R. Langemeier Jan 2006

Examining Death Loss In Kansas Feedlots, A. Babcock, R. Jones, Michael R. Langemeier

Kansas Agricultural Experiment Station Research Reports

This study had three primary objectives: 1) to determine if there is an annual and/or seasonal trend in percentage of death loss in Kansas feedlots; 2) to examine the difference in death loss between steers and heifers; and 3) to evaluate if "in" weight has had an effect on percentage of death loss in Kansas feedlots. The annual trend in death loss for both steers and heifers was found to be significant and positive, indicating that death loss has been increasing over the sample period. Seasonal increases in death loss were significant for early-spring closeouts for both steers and heifers. …

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Comparison Of Dectomax And Valbazen On Beef Cattle Carcass Traits (2006), J.A. Christopher, T.T. Marston, J.R. Brethour, Gerald L. Stokka Jan 2006

Comparison Of Dectomax And Valbazen On Beef Cattle Carcass Traits (2006), J.A. Christopher, T.T. Marston, J.R. Brethour, Gerald L. Stokka

Kansas Agricultural Experiment Station Research Reports

The objective of this trial was to determine if types of dewormers affected carcass characteristics. Crossbred steers (n=428) were stratified by weight and ultrasound marbling score and administered either Dectomax (subcutaneous injection) or Valbazen (oral) dewormer. Fecal egg counts indicated that both dewormers cleared internal parasites from the cattle. Carcass data indicated that Dectomax increased fat deposition as measured by 12th rib back fat; kidney, pelvic, and heart fat; and marbling score, when compared with Valbazen. Deworming products may affect carcass traits that are used to value cattle.

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Performance Of Calves Born To Beef Cows Seropositive But Subclinical For Bovine Leukosis Virus (2006), Donald A. Llewellyn, K.L. Teutemacher, T.T. Marston, M.W. Sanderson, Larry C. Hollis Jan 2006

Performance Of Calves Born To Beef Cows Seropositive But Subclinical For Bovine Leukosis Virus (2006), Donald A. Llewellyn, K.L. Teutemacher, T.T. Marston, M.W. Sanderson, Larry C. Hollis

Kansas Agricultural Experiment Station Research Reports

Calves from a commercial beef herd were evaluated for weight gain differences based upon the bovine leukosis virus (BLV) serological status of their dams. One hundred forty-two multiparous cows from a commercial beef herd were tested for BLV by agar gel immunodiffusion. Eighty-nine cows (62.6%) were found to be seropositive for BLV. Weights were collected from all calves at weaning, from heifers on the date when selection of replacement heifers was made, and from steers on the day of harvest after being fed to finish weight in a feedlot. Offspring from seronegative cows tended to have heavier weaning weights (+17 …

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Comparison Of Cidr To Mga In A 7-11 Cosynch Protocol With Timed Insemination Of Beef Heifers (2006), D.R. Eborn, G.E. Freneau, David M. Grieger Jan 2006

Comparison Of Cidr To Mga In A 7-11 Cosynch Protocol With Timed Insemination Of Beef Heifers (2006), D.R. Eborn, G.E. Freneau, David M. Grieger

Kansas Agricultural Experiment Station Research Reports

Previous research has shown that the 7-11 Cosynch protocol using melengestrol acetate (MGA) is effective in synchronizing beef heifers. This study compared MGA and a vaginal insert containing progesterone (CIDR) in the 7-11 Cosynch protocol on beef heifers. Replacement beef heifers (n=179) from three herds were assigned to MGA or CIDR treatments. Beginning on day 1, heifers on the MGA treatment were fed to consume 0.5 mg daily of MGA for 7 days. On day 7, the last day of MGA feeding, the MGA heifers received an injection of Lutalyse (PGF). Heifers on the CIDR treatment received a CIDR on …

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The Effects Of Flaxlic Block Supplementation On Finishing Feedlot Heifers (2006), M.J. Quinn, E.R. Loe, A.S. Webb, M.E. Corrigan, James S. Drouillard, Brandon E. Depenbusch Jan 2006

The Effects Of Flaxlic Block Supplementation On Finishing Feedlot Heifers (2006), M.J. Quinn, E.R. Loe, A.S. Webb, M.E. Corrigan, James S. Drouillard, Brandon E. Depenbusch

Kansas Agricultural Experiment Station Research Reports

An experiment was conducted to determine the effects of FlaxLic supplement blocks, fed free-choice during feedlot finishing, on heifer performance, carcass quality, and fatty acid profiles of loin steaks. Heifers (n=302, 1059±7 lb initial bodyweight) were fed diets based on steam-flaked corn. Cattle were assigned to dirt surfaced pens (12 to 13 heifers/pen, 12 pens/treatment). Treatments consisted of control (no block) or FlaxLic free-choice block supplements. Loins were obtained from three animals randomly selected from each pen for measurement of fatty acid profiles. Average daily gain and feed:gain were not different over the 75-day feeding trial. Dry matter intake was …

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Measuring Scope Efficiency For Crop And Beef Farms (2006), Michael R. Langemeier, R.D. Jones Jan 2006

Measuring Scope Efficiency For Crop And Beef Farms (2006), Michael R. Langemeier, R.D. Jones

Kansas Agricultural Experiment Station Research Reports

This study evaluated scope efficiency (the degree of efficiency gained from producing more than one product within the same farm) for a sample of crop and beef farms in Kansas. Scope and economic efficiency were estimated for each individual farm. Average scope efficiency was 0.25, indicating that joint production of crop and beef enterprises on the same farm reduced cost approximately 25%. Scope efficiency was significantly higher for smaller farms. Despite the relatively higher scope efficiency levels, economic efficiency (relative cost efficiency) was significantly lower for smaller farms. Economic efficiency is related to cost control and economies of size, which …

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