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Full-Text Articles in Life Sciences
Bacterial Flora Of Liver Abscesses From Feedlot Cattle Fed With Or Without Tylosin (1996), A.B. Beharka, L.H. Carroll, A.P. Raun, S.B. Laudert, J.C. Parrott, Tiruvoor G. Nagaraja, M. M. Chengappa
Bacterial Flora Of Liver Abscesses From Feedlot Cattle Fed With Or Without Tylosin (1996), A.B. Beharka, L.H. Carroll, A.P. Raun, S.B. Laudert, J.C. Parrott, Tiruvoor G. Nagaraja, M. M. Chengappa
Kansas Agricultural Experiment Station Research Reports
Fusobacterium necrophorum was the predominant bacterial isolate from liver abscesses of feedlot cattle fed with or without tylosin. The major difference in the bacterial flora of liver abscesses between cattle groups was the higher incidence of Actinomyces pyogenes in the tylosin-fed cattle. Because the minimum inhibitory concentration of tylosin was not different between bacterial isolates from cattle in the two treatments, we concluded that continuous feeding of tylosin does not induce resistance. The source of A. pyogenes infection and significance of A. pyogenes interaction with F. necrophorum in tylosin-fed cattle are not known.
Summary Of Grazing Research On Kansas Conservation Reserve Program Land (1996), Michael R. Langemeier, P.D. Ohlenbusch
Summary Of Grazing Research On Kansas Conservation Reserve Program Land (1996), Michael R. Langemeier, P.D. Ohlenbusch
Kansas Agricultural Experiment Station Research Reports
Animal performance and the net return per acre for four CRP research sites in Kansas in 1994 and 1995 were examined. Both mowing and prescribed burning increased animal performance in 1994. Mowing was economically feasible on one of the four sites. Prescribed burning was economically feasible on three of four sites. Mowing or burning treatments were not repeated in 1995, the second year of the analysis. Second-year animal performance was similar between the untreated plots and those that were mowed or burned in 1994. Net returns per acre for the site that was grazed by cow-calf pairs ranged from -$5.96 …
Efficacy Of Electronic Identification In Beef Cattle (1996), A.R. Spell, S.D. Utter, L.R. Corah
Efficacy Of Electronic Identification In Beef Cattle (1996), A.R. Spell, S.D. Utter, L.R. Corah
Kansas Agricultural Experiment Station Research Reports
To evaluate the potential of using electronic implants (transponders) for maintaining identity from birth to slaughter, calves born and implanted in Montana were followed through the feedlot phase to their ultimate slaughter at commercial packing plants. At spring branding, 138 calves were implanted with electronic identification transponders positioned underneath the scutiform cartilage at the base of the ear. Four steers died prior to weaning. After weaning, 109 steers were transported to a commercial feedlot i n Kansas (group 1) and the remaining 25 steers (group 2) were maintained at the Montana ranch for 1 year and then placed in a …
Effect Of A Propionic Acid Bacterial Inoculant On Fermentation And Aerobic Stability Of Whole-Plant Corn Silage (1996), K.K. Bolsen, D.R. Bonilla, G.L. Huck, R.A. Hart-Thakur, Matthew A. Young
Effect Of A Propionic Acid Bacterial Inoculant On Fermentation And Aerobic Stability Of Whole-Plant Corn Silage (1996), K.K. Bolsen, D.R. Bonilla, G.L. Huck, R.A. Hart-Thakur, Matthew A. Young
Kansas Agricultural Experiment Station Research Reports
The effects of a strain of Propionibacterium shermanii, applied with and without lactic acid bacteria (LAB), on the fermentation and aerobic stability of whole-plant corn silage was determined using laboratory-scale silos. The addition of LAB increased the rate of fermentation, and all inoculated silages underwent a more efficient ensiling process than control silage. Only silages made with P. shermanii had measurable levels of propionic acid in the 90-day silages. Corn silages made with P. shermanii were more stable when exposed to air than control or LAB-inoculated silages.
Using Near-Infrared Reflectance Spectroscopy For Rapid Nutrient Evaluation Of Sorghum Silage (1996), K.J. Budiongo, L.H. Harbers, B.W. Seabourn, K.K. Bolsen, B.E. Brent
Using Near-Infrared Reflectance Spectroscopy For Rapid Nutrient Evaluation Of Sorghum Silage (1996), K.J. Budiongo, L.H. Harbers, B.W. Seabourn, K.K. Bolsen, B.E. Brent
Kansas Agricultural Experiment Station Research Reports
This research was designed to develop a set of prediction equations to measure nutrient composition of Kansas sorghum silages by near-infrared reflectance spectroscopy (NIRS). Because sorghum silages are highly variable in grain content, we included a large number of cultivars to develop a robust set of equations for dry matter, crude protein, neutral detergent fiber, and acid detergent fiber. The results indicate that NIRS analysis of sorghum silages is feasible.
National Forage Survey Results: Trace Mineral And Related Nutrient Levels (1996), L. Corah, D. Dargatz, C. Peters
National Forage Survey Results: Trace Mineral And Related Nutrient Levels (1996), L. Corah, D. Dargatz, C. Peters
Kansas Agricultural Experiment Station Research Reports
A National Forage Survey was conducted in 18 states to determine the trace mineral and related nutrient content of forages grown in the United States. Most forages sampled were harvested hays utilized as winter feed for beef cow herds. The trace element most commonly deficient in the forages sampled was zinc. Copper and cobalt levels were adequate in 36 and 34.1% of the samples, respectively. In contrast, manganese was adequate (above 40 ppm) in 76% of the samples and was deficient (below 20 ppm) only in 4.7%. The copper antagonists, such as iron and molybdenum, were marginal to high in …
Amino Acid Supplementation To Growing And Finishing Steers (1996), C.G. Campbell, C.T. Milton, Evan C. Titgemeyer
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 …
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
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 …
Effect Of Feeding Rumen-Protected Lysine With Different Levels Of Soybean Meal To Growing Steers (1996), R.H. Wessels, Evan C. Titgemeyer
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. …
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
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 …
Effect Of Monensin On Grain Bloat In Cattle (1996), M.L. Coe, N. Wallace, Kenneth E. Kemp, J.C. Parrott, Tiruvoor G. Nagaraja
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.
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
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 …