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Animal Sciences

Kansas State University Libraries

Kansas Agricultural Experiment Station Research Reports

2001

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Articles 61 - 80 of 80

Full-Text Articles in Life Sciences

Effects Of A Direct Fed Microbial (Dmf-4) And In-Feed Antimicrobials On Pig Performance In A Commercial Finishing Facility (2001), R G. Main, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz Jan 2001

Effects Of A Direct Fed Microbial (Dmf-4) And In-Feed Antimicrobials On Pig Performance In A Commercial Finishing Facility (2001), R G. Main, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 1,000 barrows were used in a 98-day trial conducted in a commercial research facility to determine the influence of a direct fed microbial with and without intermittent treatments of oxytetracycline (OTC) at 400 g/ton. The direct fed microbial was compared to a negative (no feed antimicrobial) and positive control (bacitracin methylene diasalicylate (BMD) at 30 g/ton, alternated with intermittent treatments of OTC at 400 g/ton). No significant differences between the four treatments were observed for any of the growth, efficiency, or carcass parameters evaluated. These results suggest that further work in quantifying the effects of routinely utilizing …

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Evaluation Of Irradiation And Termin-8® Addition To Spray-Dried Animal Plasma, Base Mix And/Or Whole Diet On Growth Performance Of Nursery Pigs (2001), R E. Musser, W N. Cannon, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2001

Evaluation Of Irradiation And Termin-8® Addition To Spray-Dried Animal Plasma, Base Mix And/Or Whole Diet On Growth Performance Of Nursery Pigs (2001), R E. Musser, W N. Cannon, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two studies were conducted to evaluate the effects of irradiation of spray-dried animal plasma and Termin-8 treatment to spray-dried animal plasma, base mix (specialty protein products, milk products, ground oat groats, soy flour, flow agent, vitamins, and minerals), or whole diet on nursery pig performance. Overall (d 0 to 14) in Exp. 1, pigs fed diets containing irradiated plasma had increased ADG and pigs fed Termin-8® treated plasma had increased ADG and ADFI compared to pigs fed diets with regular plasma or whole diets (containing either regular or irradiated plasma) treated with Termin-8. No differences in F/G were observed among …

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The Relationship Between Body Condition Score And Backfat In Gestating Sows (2001), M G. Young, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2001

The Relationship Between Body Condition Score And Backfat In Gestating Sows (2001), M G. Young, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Backfat and body condition score were measured on 731 sows in a commercial swine facility to assess the accuracy of feeding sows in gestation based on body condition score. Body condition score was poorly correlated (r2 = 0.19) with backfat thickness. For example, sows assessed with a body condition of 3 ranged in backfat from 0.3 to 0.9 in. (7.5 to 23 mm). This illustrates the need to find a more objective method of measuring body condition (such as ultrasound) in order to properly adjust feeding levels and thus reduce variation in backfat of sows.; Swine Day, Manhattan, KS, November …

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Rumensin®-Tylan® Combinations In Limit-Fed Growing Diets: Effects On Growing And Finishing Performance And Carcass Characteristics (2001), Sean P. Montgomery, T.B. Farran, J.J. Sindt, C.M. Coetzer, J.N. Pike, A.M. Trater, H.J. Labrune, R.D. Hunter, S.B. Laudert, James S. Drouillard Jan 2001

Rumensin®-Tylan® Combinations In Limit-Fed Growing Diets: Effects On Growing And Finishing Performance And Carcass Characteristics (2001), Sean P. Montgomery, T.B. Farran, J.J. Sindt, C.M. Coetzer, J.N. Pike, A.M. Trater, H.J. Labrune, R.D. Hunter, S.B. Laudert, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Five hundred seventy-two crossbred beef heifers were used to compare gain and feed efficiency of cattle consuming restricted quantities of energy-dense growing diets containing varying concentrations of Rumensin® and Tylan®. Growing treatments consisted of providing Rumensin at 30 grams per ton of dry matter (R30), or 250 mg per head per day (R250). A third treatment consisted of a Rumensin/Tylan combination, providing 250 and 90 mg per head per day of Rumensin and Tylan, respectively (R250/T90). Average daily gain and feed efficiency during the growing phase were not different (P>0.90) among treatments. Heifers that received R250/T90 during the growing …

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A Survey Of Phytoestrogenic Activity In Kansas Flint Hills Pastures (2001), S.I. Paisley, W.V. Welshons, G.E. Rottinghaus, Jeffrey L. Davidson, James J. Higgins, Dale A. Blasi, Michael S. Holder, David E. Kehler Jan 2001

A Survey Of Phytoestrogenic Activity In Kansas Flint Hills Pastures (2001), S.I. Paisley, W.V. Welshons, G.E. Rottinghaus, Jeffrey L. Davidson, James J. Higgins, Dale A. Blasi, Michael S. Holder, David E. Kehler

Kansas Agricultural Experiment Station Research Reports

The botanical composition and basal cover of three Kansas Flint Hills pastures located in Butler and Chase counties was surveyed to estimate the incidence of plant species that contain appreciable levels of estrogenic activity. Many-flowered scurfpea and Ladino clover were the only plant species classified as high in estrogenic activity. Although significant estrogenic activity existed in specific species, the willingness of livestock to consume those species is unclear.

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The Influence Of Dietary Energy Level On The Response To Betaine (2001), M G. Young, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz Jan 2001

The Influence Of Dietary Energy Level On The Response To Betaine (2001), M G. Young, Michael D. Tokach, Robert D. Goodband, Jim L. Nelssen, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 800 pigs were used to evaluate the influence of dietary energy level on the response to betaine in finishing pig diets. Dietary treatments were arranged in a 2 × 2 factorial with or without betaine and two energy density levels as the main effects. No betaine × energy interactions (P>0.05) were observed for the entire feeding period (51 to 210 lb) or for any of the three dietary phases. Pigs fed the high energy diets with added fat had (P<.05) greater ADG, lower ADFI, and improved F/G compared with pigs fed the low energy diets without added fat. Adding betaine to the diet had no influence on pig performance.; Swine Day, Manhattan, KS, November 15, 2001

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A Comparison Of Different Particle Size Analysis Techniques (2001), A L. Baldridge, T L. Stainbrook, J C. Woodworth, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband Jan 2001

A Comparison Of Different Particle Size Analysis Techniques (2001), A L. Baldridge, T L. Stainbrook, J C. Woodworth, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband

Kansas Agricultural Experiment Station Research Reports

In this study, we compared different methods of testing particle size of ground corn. Forty-four corn samples were analyzed for particle size with a Ro-Tap tester equipped with a 13-sieve stack (53 to 3,350 :m tyler mesh screens). Mean particle size of the 44 samples ranged from 422 to 1,143 :m. These samples were then analyzed by placing 280 g on a #14 sieve (1,400 :m). The sieve was shaken by hand as the manufacturer recommended (one-sieve method). In a second procedure, samples were analyzed by placing 50 g of corn on a stack of three sieves: US #12 (1700 …

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Presynchronization Of Estrous Cycles In Dairy Cows Before Ovsynch + Cidr And Resynchronization Of Repeat Estrus Using The Cidr, S.Z. El-Zarkouny, J.A. Cartmill, A.M. Richardson, M.A. Medina-Britos Jan 2001

Presynchronization Of Estrous Cycles In Dairy Cows Before Ovsynch + Cidr And Resynchronization Of Repeat Estrus Using The Cidr, S.Z. El-Zarkouny, J.A. Cartmill, A.M. Richardson, M.A. Medina-Britos

Kansas Agricultural Experiment Station Research Reports

Postpartum anestrus is one of the major limitations to achieving acceptable pregnancy rates. The Ovsynch protocol is an excellent tool to improve reproductive efficiency of dairy cows because it can induce estrous cycles in anestrous cows. In the first experiment, administering two PGF2" injections to lactating dairy cows 14 days apart with the second injection given 12 days before the Ovsynch protocol increased (P<0.05) pregnancy rate by 10 percentage points in cycling and noncycling cows. Inserting a progesterone-releasing insert (CIDR) for 7 days during the Ovsynch protocol did not further increase pregnancy rates. In a second experiment, a resynchronization treatment consisting of a used CIDR inserted for 7 days from days 13 to 20 after insemination increased (P<0.05) embryo survival from day 30 to 58 by 11 percentage points but failed to increase overall rate of return to estrus and conception rate at the second AI (first eligible estrus after first AI).; Dairy Day, 2001, Kansas State University, Manhattan, KS, 2001;

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Effects Of A Biological Additive And Sealing Technique On The Aerobic Stability Of Whole-Plant Corn Silage (2001), M.E. Uriarte, K.K. Bolson, Ronald V. Pope Jan 2001

Effects Of A Biological Additive And Sealing Technique On The Aerobic Stability Of Whole-Plant Corn Silage (2001), M.E. Uriarte, K.K. Bolson, Ronald V. Pope

Kansas Agricultural Experiment Station Research Reports

The objectives of this whole-plant corn study were to determine the effects of a biological additive and sealing technique on yeast and mold populations; and to examine the relationship between the microbial and chemical changes in the silages during exposure to air. Whole-plant corn was harvested at 80% milkline (36% DM), and ensiled at a density of 43 lb of fresh matter/ft3. One-half of the pre-ensiled forage was treated with a biological additive (A), which contained a mixture of bacteria and enzymes (supplied by Alltech, Inc., Nicholasville, KY); the other one-half of the pre-ensiled forage was the untreated control (C). …

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Carcass Merit Project: Development Of Epds And Genetic Marker Validation (2001), E.J. Pollak, R.D. Green, J. Taylor, S. Davis, T. Holm, S. Koontz, C. Gill, Daniel W. Moser, E.A. Westcott, Michael E. Dikeman Jan 2001

Carcass Merit Project: Development Of Epds And Genetic Marker Validation (2001), E.J. Pollak, R.D. Green, J. Taylor, S. Davis, T. Holm, S. Koontz, C. Gill, Daniel W. Moser, E.A. Westcott, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

Carcass and Warner-Bratzler shear force data on strip loin steaks have been obtained on over 4,200 cattle from contemporary progeny groups from the most widely used sires in 15 beef cattle breed associations (16 breeds). Trained sensory panel evaluations have been conducted on over 1,500 strip loin steaks from a sample of contemporary progeny groups from sires included in the QTL (quantitative trait loci) validation component of the project. One breed association has published Warner-Bratzler shear force Expected Progeny Differences (EPDs) for 57 sires of two breeds. DNA analyses and screening have been completed for 11 QTL on eight sires …

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Carcass Merit Traits: Development Of Epds For Warner-Bratzler Shear Force And Dna Marker Validation (2001), E.J. Pollak, R.J. Lipsey, E.A. Westcott, Michael E. Dikeman, Sally L. Stroda Jan 2001

Carcass Merit Traits: Development Of Epds For Warner-Bratzler Shear Force And Dna Marker Validation (2001), E.J. Pollak, R.J. Lipsey, E.A. Westcott, Michael E. Dikeman, Sally L. Stroda

Kansas Agricultural Experiment Station Research Reports

Warner-Bratzler shear force data on strip loin steaks were obtained on 761 steers from contemporary groups of progeny from the most popular 38 Simmental sires, and 133 steers from nine Simbrah sires. The range for Warner-Bratzler shear force EPDs for the Simmental sires was from -0.51 lb (more tender) to +0.48 lb (less tender). The range in EPDs for the Simbrah sires was from -0.73 to +0.73 lb. In addition, DNA analyses and screening have been completed for 11 quantitative trait loci on several Simmental and Simbrah sires. Information from this project should allow cattle producers to improve carcass traits, …

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Short-Term Feeding Of Mga To Postpartum Cows Prior To The Breeding Season, J.F. Gleghorn, T.T. Marston, L.E. Wankel Jan 2001

Short-Term Feeding Of Mga To Postpartum Cows Prior To The Breeding Season, J.F. Gleghorn, T.T. Marston, L.E. Wankel

Kansas Agricultural Experiment Station Research Reports

A protocol to make anestrous cows more likely to cycle prior to estrous synchronization would greatly enhance reproductive efficiency. Ease of application, availability, and low cost make feeding melengestrol acetate (MGA) a good choice in such a protocol. MGA, used as a progestin "primer," has no detrimental effects on cows that are already cycling and reduces the number of cows expressing short cycles.

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Evaluation Of Ralgro® On Pasture And Subsequent Feedlot Performance And Carcass Merit Of Mexican Crossbred Steers (2001), S.I. Paisley, Gerry L. Kuhl, James J. Higgins, G.L. Huck, T.B. Farran, J.J. Sindt, Sean P. Montgomery, C. Birkelo, Dale A. Blasi, Michael E. Dikeman Jan 2001

Evaluation Of Ralgro® On Pasture And Subsequent Feedlot Performance And Carcass Merit Of Mexican Crossbred Steers (2001), S.I. Paisley, Gerry L. Kuhl, James J. Higgins, G.L. Huck, T.B. Farran, J.J. Sindt, Sean P. Montgomery, C. Birkelo, Dale A. Blasi, Michael E. Dikeman

Kansas Agricultural Experiment Station Research Reports

A pasture/feedlot field study was conducted to evaluate the effects of a single Ralgro® implant during the stocker phase on steer grazing performance and subsequent feedlot performance and carcass merit. A total of 2,764 steers of Mexican origin averaging 449 lb were assembled in Texas and shipped to Kansas, where they grazed on three intensively-early-stocked Flint Hills pastures. At initial processing, the steers were individually weighed and randomly assigned to either a non-implanted control group or a Ralgro implant group. Ralgro steers gained more (23 lb; P<0.01) than controls during the 82- to 93-day grazing phase. Following the grazing phase, all steers were shipped to a commercial feedlot in southwestern Kansas where steers from each pasture were individually weighed and given a single Component E-S® implant. Immediately after processing, steers from each pasture were sorted into either a light- or heavy-weight pen, regardless of pasture implant treatment, resulting in six feedlot pens. Days on feed ranged from 127 to 197. Control steers gained faster (P<0.01) during the feedlot phase; however, Ralgro steers had higher cumulative weight gains across the combined pasture and feedlot phases (P<0.01) and averaged three fewer days on feed (P<0.05). There were no significant differences for marbling, fat thickness, ribeye area, KPH fat, or yield grade. Ralgro steers had lower (P<0.05) quality grades because of a higher incidence (P<0.001) of steers with B and C carcass maturities.

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Effect Of Cooked Molasses Tubs On Performance And Health Of Newly Received Stocker Calves (2001), S.I. Paisley, Gerald L. Stokka, F.K. Brazle Jan 2001

Effect Of Cooked Molasses Tubs On Performance And Health Of Newly Received Stocker Calves (2001), S.I. Paisley, Gerald L. Stokka, F.K. Brazle

Kansas Agricultural Experiment Station Research Reports

Eight paired comparisons conducted at three field sites with 1059 newly-received lightweight stocker calves were used to determine the effect of free-choice cooked molasses tubs designed for receiving cattle on 28-day receiving period performance, percentage of cattle treated for respiratory disease, and death loss. At all sites, cattle received similar management with the exception that cooked molasses tubs were added to half of the pens immediately following initial processing. Weight gains were similar (P=0.36) for cattle with or without access to tubs (43 and 38 lb, respectively). The addition of tubs also did not affect the number of cattle treated …

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Using A Mixture Of Cottonseed Hulls And Cottonseed Meal To Replace Alfalfa Hay In Diets For Stressed Feeder Calves (2001), T.B. Farran, R.D. Hunter, Sean P. Montgomery, J.J. Sindt, Dale A. Blasi, James S. Drouillard Jan 2001

Using A Mixture Of Cottonseed Hulls And Cottonseed Meal To Replace Alfalfa Hay In Diets For Stressed Feeder Calves (2001), T.B. Farran, R.D. Hunter, Sean P. Montgomery, J.J. Sindt, Dale A. Blasi, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

One 28-day receiving experiment was conducted using 625 exotic x British cross heifers to evaluate growth performance and morbidity on receiving diets that contained either alfalfa hay or a pellet composed of 65% cottonseed hulls and 35% cottonseed meal as the roughage source. Heifers fed the cotton byproduct pellet consumed more feed (P0.05), and the percentages of heifers diagnosed, treated, or retreated for respiratory disease were similar.

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The Optimal Threonine:Lysine Ratio To Maximize Growth Performance Of Nursery Pigs (2001), B W. James, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2001

The Optimal Threonine:Lysine Ratio To Maximize Growth Performance Of Nursery Pigs (2001), B W. James, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 210 pigs (initially 18.2 lb and 25 d of age) were used in a 21-d growth assay. The seven treatments consisted of a basal diet (14.1% CP) with increasing levels of threonine (45, 50, 55, 60, 65, and 70% of 1.07% apparent digestible lysine) and a negative control containing 0.97% lysine. Increasing dietary threonine improved feed efficiency; however, there was no improvement in growth performance between pigs fed 0.97 and 1.07% apparent digestible lysine. Therefore, these results suggest the requirement for apparent digestible threonine is approximately 60% of lysine for 18- to 40-lb pigs.; Swine Day, Manhattan, …

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The Optimal Ratio Of Apparent Digestible Valine To Lysine To Maximize Growth Performance Of The Nursery Pig (2001), B W. James, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz Jan 2001

The Optimal Ratio Of Apparent Digestible Valine To Lysine To Maximize Growth Performance Of The Nursery Pig (2001), B W. James, J C. Woodworth, Robert D. Goodband, Michael D. Tokach, Jim L. Nelssen, Joel M. Derouchey, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

A total of 210 nursery pigs (initially 19.6 lb and approximately 28 d of age) were used in a 21-d growth assay to determine the optimal ratio of valine to lysine to maximize growth performance. The seven treatments consisted of a basal diet (14.2% CP; 1.07% apparent digestible lysine) with increasing ratios of valine:lysine (48, 53, 58, 63, 69, and 74%) and a negative control containing 0.97% lysine and 0.79% apparent digestible valine. Results indicate that the optimal apparent digestible valine:lysine ratio for the nursery pig is 58 and 64% for ADG and F/G, respectively. Therefore, most typical nursery diets …

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Evaluation Of Ground Corn Germ As An Energy Source In Nursery Diets (2001), C W. Hastad, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2001

Evaluation Of Ground Corn Germ As An Energy Source In Nursery Diets (2001), C W. Hastad, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two hundred eighty nursery pigs (initially 30.9 lb) were used in a 21-d growth assay to determine the energy value of ground corn germ relative to corn oil in nursery diets. Increasing dietary corn oil linearly decreased average daily feed intake and improved feed efficiency. However, pigs fed diets containing ground corn germ meal had similar gain and feed efficiency as those fed the corn-soybean meal diet without added fat. These results suggest that the added energy provided by corn germ is not utilized as well as that from corn oil.; Swine Day, Manhattan, KS, November 15, 2001

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2001 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service Jan 2001

2001 Agricultural Research Southeast Agricultural Research Center, Kansas State University. Agricultural Experiment Station And Cooperative Extension Service

Kansas Agricultural Experiment Station Research Reports

No abstract provided.

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Effects Of Ingredient And Whole Diet Irradiation On Nursery Pig Performance (2001), J C. Woodworth, M J. Webster, B W. James, D E. Real, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz Jan 2001

Effects Of Ingredient And Whole Diet Irradiation On Nursery Pig Performance (2001), J C. Woodworth, M J. Webster, B W. James, D E. Real, Joel M. Derouchey, Michael D. Tokach, Jim L. Nelssen, Robert D. Goodband, Steven S. Dritz

Kansas Agricultural Experiment Station Research Reports

Two trials were conducted to determine the effects of irradiation of individual ingredients or the whole diet on growth performance in nursery pigs. The response was similar for both trials with pigs fed diets containing irradiated spray-dried animal plasma or soybean meal having increased (P<0.05) ADG compared with pigs fed the control diet with no irradiated ingredients or the complete diet that was irradiated. Also, ADFI (P<0.05) was higher for pigs consuming the diet with irradiated soybean meal compared with those fed the irradiated whole diet. Pigs fed irradiated spray-dried animal plasma also had superior F/G (P<0.05) compared with those fed diets containing irradiated microingredients or if all ingredients had been irradiated before manufacturing. Therefore, irradiation of certain feed ingredients can improve growth performance in nursery, whereas irradiation of all ingredients in the diet or the whole diet does not enhance performance.; Swine Day, Manhattan, KS, November 15, 2001

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