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Other Animal Sciences

Kansas Agricultural Experiment Station Research Reports

1996

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Articles 91 - 97 of 97

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Amino Acid Supplementation To Growing And Finishing Steers (1996), C.G. Campbell, C.T. Milton, Evan C. Titgemeyer Jan 1996

Amino Acid Supplementation To Growing And Finishing Steers (1996), C.G. Campbell, C.T. Milton, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

One hundred British and British cross steers, averaging 631 lb ( initial wt) were used in a growing and finishing study to evaluate the effects of unprotected amino acid supplementation on cattle performance and carcass characteristics. All diets contained 1% of a nonprotein nitrogen source, and treatments were: no additional supplemental protein (UREA), 2) supplemental protein from soybean meal (SBM), 3) 13 grams/day of an amino acid supplement (Low AA), and 4) 26 grams/day of an amino acid supplement (High AA). The Low AA treatment supplied 2 grams methionine, 8 grams lysine, 2 grams threonine, and 1 gram tryptophan per …

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Supplementing Growing Holstein Steers Fed A Corn-Urea Diet With A Mixture Of Essential Amino Acids Increases Performance (1996), R.H. Wessels, Evan C. Titgemeyer Jan 1996

Supplementing Growing Holstein Steers Fed A Corn-Urea Diet With A Mixture Of Essential Amino Acids Increases Performance (1996), R.H. Wessels, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Six ruminally cannulated Holstein steers (550 lb) implanted with Revalor-S were infused abomasally with water or a mixture of six amino acids in a crossover experiment (two 14-day periods) to evaluate effects on nitrogen balance. The mixture was comprised of amino acids that potentially may be limiting in lightweight steers, namely (g/day): lysine (5.3), methionine (3.3), threonine (3.2), tryptophan (1 .0), histidine (2.1), and arginine (5.5). Steers were fed at levels just below ad libitum intake. The diet contained 86% rolled corn, 10% prairie hay, 3% mineral and vitamin premixes, and 1% urea (as-fed). Amino acid infusion increased nitrogen retention …

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Effect Of Feeding Rumen-Protected Lysine With Different Levels Of Soybean Meal To Growing Steers (1996), R.H. Wessels, Evan C. Titgemeyer Jan 1996

Effect Of Feeding Rumen-Protected Lysine With Different Levels Of Soybean Meal To Growing Steers (1996), R.H. Wessels, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

To test the efficacy of rumen-protected lysine and methionine, six steers (486 lb) were used in a 6 4 incomplete Latin square design and fed corn-urea diets (85% concentrate) alone or supplemented with 2 or 4% soybean meal to give dietary crude protein levels of 12.5, 13.2, and 14.0% (as fed-basis). Each diet was fed with or without 5 g/day Smartamine-ML (rumen-protected lysine and methionine). Steers were fed to gain 2.6 lb/day. Nitrogen retention increased linearly, from 30.7 g/day (0% soy) to 35.5 g/day (4% soy) as the level of soybean meal and, thus, crude protein, increased in the diet. …

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Natural Degradable Protein And Roughage Type For Implanted Finishing Steers Fed Dry-Rolled Corn Diets (1996), C.T. Milton, Robert T. Brandt Jr., Gerry L. Kuhl, Evan C. Titgemeyer, James S. Drouillard Jan 1996

Natural Degradable Protein And Roughage Type For Implanted Finishing Steers Fed Dry-Rolled Corn Diets (1996), C.T. Milton, Robert T. Brandt Jr., Gerry L. Kuhl, Evan C. Titgemeyer, James S. Drouillard

Kansas Agricultural Experiment Station Research Reports

Three hundred eighty-four crossbred, yearling steers (810 lb) were used to evaluate soybean meal (SBM), sunflower meal (SFM), and combinations of the two as protein supplements and supplemental protein effects in diets containing silage or alfalfa as dietary roughage. All diets contained 1.0% urea (dry matter basis). An additional 2 percentage units of crude protein were either not provided or provided as SBM, SFM, or a 50:50 combination (protein basis) of SBM and SFM. Steers were implanted with Revalor-Sfi and fed experimental diets for 126 days. No interactions between protein supplementation and roughage source were observed. Daily feed intake and …

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Effects Of Temporarily Altering Alfalfa Levels In High-Concentrate Diets On Subacute Acidosis (1996), B.J. Healy, Robert T. Brandt Jr. Jan 1996

Effects Of Temporarily Altering Alfalfa Levels In High-Concentrate Diets On Subacute Acidosis (1996), B.J. Healy, Robert T. Brandt Jr.

Kansas Agricultural Experiment Station Research Reports

Four ruminally cannulated crossbred steers (882 lb) were used to investigate the effects of temporarily altering the levels of alfalfa in a high-concentrate diet on ruminal characteristics during a bout of experimentally induced subacute acidosis. A diet based on dry rolled corn with 8% alfalfa hay was fed before and after a 2-day challenge phase when steers were forced to consume 2.5% of their body weight in 90 minutes each day after a prior 24-hour fast. During the challenge phase, steers were fed diets containing 5, 8, 11, or 14% alfalfa. Feed intake quickly recovered for steers fed all but …

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Effect Of Monensin On Grain Bloat In Cattle (1996), M.L. Coe, N. Wallace, Kenneth E. Kemp, J.C. Parrott, Tiruvoor G. Nagaraja Jan 1996

Effect Of Monensin On Grain Bloat In Cattle (1996), M.L. Coe, N. Wallace, Kenneth E. Kemp, J.C. Parrott, Tiruvoor G. Nagaraja

Kansas Agricultural Experiment Station Research Reports

Twelve ruminally cannulated Holstein steers were used to determine the effect of monensin (0, 20, 30, and 40 g/ton) on grain bloat. Steers were fed a bloat-provocative, high-grain diet at 1% of body weight twice daily. Monensin premix was added directly to individual steers diets at the time of feeding. The severity of bloat was scored daily on a scale of 0 (no bloat) to 5 (severe bloat). The scoring was based on the degree of frothiness and abdominal distention. Bloat scores (mean of wk 2, 3, and 4) were lower (P<.0l) for monensin-fed steers than for the controls. The mean bloat scores were 1.43, 1.18, 1.00, and .93 for 0, 20, 30 and 40 g/ton monensin, respectively. Total gas production during in vitro ruminal fermentation tended to be higher (P=.12) for control than for monensin-fed steers. Ruminal pH and total volatile fatty acid concentrations were unaffected by treatment. Monensin decreased frothy bloat caused by the bloat-provocative diet, and the degree of control appeared to be greater with higher levels of monensin.

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Effect Of Implantation And Melengestrol Acetate Feeding On Blood Serum Profiles And Performance Of Heifers (1996), Robert T. Brandt Jr., C.T. Milton, N. Campbell, Evan C. Titgemeyer Jan 1996

Effect Of Implantation And Melengestrol Acetate Feeding On Blood Serum Profiles And Performance Of Heifers (1996), Robert T. Brandt Jr., C.T. Milton, N. Campbell, Evan C. Titgemeyer

Kansas Agricultural Experiment Station Research Reports

Payout characteristics of Revalor-H and Finaplix-H were measured in 30 heifers (678 pounds) assigned to one of six treatments: 1) negative control, 2) melengestrol acetate (MGA) (.5 mg/hd/d), 3) Finaplix-Hfi, 4) Finaplix-H + MGA, 5) Revalor-Hfi, and 6) Revalor-H + MGA. Blood samples were collected by jugular puncture on days 0, 1, 3, 5, 7, 13, 21, 28, 42, 56, 84, 112, and 140. Following implantation with either Revalor-H or Finaplix-H, serum trenbolone (TB) increased markedly at 1 and 3 days after implantation, then decreased through day 42. A second peak in serum TB was observed on day 56. Between …

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