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The effects of increasing dietary roughage level and slaughter weight on the feedlot performance and carcass characteristics of bulls and steers
Download1980
Price, M. A., Berg, R. T., Jones, S. D. M., Mathison, G. W.
A serial slaughter experiment is described comparing 45 bulls and 44 implanted steers. Nine of each 'sex' were slaughtered at the start of the trial and the remaining 71 were fed diets containing three roughage levels (20%, 50% and 80% alfalfa-brome hay) to two pen-average slaughter weights (450...
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1980
Jones, S. D. M., Price, M. A., Berg, R. T.
A trial is reported comparing muscle growth and distribution in l2 bulls and l2 heifers of each of two breed-types: Hereford (HE) and Dairy Synthetic (DY). Serial slaughter was carried out from weaning ( 163 + 15. I days) to approximately l5 mo of age.
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The influence of breed on the efficiency of growth and muscle deposition in bulls and heifers
Download1981
Berg, R. T., Price, M. A., Jones, S. D. M.
Two breeds (Hereford (HE), and Dairy Synthetic (DY)), and two sexes (bulls and heifers) were compared for various measures of efficiency in beef production. DY animals had greater (P < 0.001) birthweights, and greater weaning weights (P < 0.001) than HE animals. At weaning, 16 animals of each...
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The influence of dietary roughage level on the efficiency of growth and muscle deposition in bulls and steers
Download1981
Hardin, R. T., Jones, S. D. M., Berg, R. T., Price, M. A.
Bulls and implanted steers fed three dietary roughage levels (20% 50%, and 80% alfalfa-brome hay) were compared for various measures of efficiency in beef production. Cattle were about 1 yr of age at the start of the trial and bulls were heavier than steers (290 kg vs. 269 kg). There were four...
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Variations in and relationships between reproductive performance and growth parameters in yearling beef bulls in single sire mating at pasture
Download1989
Makarechian, M., Farid, A., Berg, R. T., Price, M. A.
Yearling bull fertility, measured as pregnancy rate, percentage of calves born during the first 4 and 6 wk of calving and mean and median of calving date distribution, were studied in 109 single-sire breeding herds of two breed groups over a 10-yr period. The breed groups were Herefords bulls...