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1979
Price, M. A., Richmond, R. J., Berg, R. T., Jones, S. D. M.
The growth and distribution of bone from 179 pig carcasses were compared among five breeds (Duroc x Yorkshire (DxY), Hampshire x Yorkshire (HxY), Yorkshire (YxY), Yorkshire x Lacombe-Yorkshire ffxl--Y) and Lacombe x Yorkshire (LxY)) and two sex-types (barrows and gilts) over a wide range in...
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Effects of breed type and slaughter weight on feedlot performance and carcass composition in bulls
Download1978
Jones, S. D. M., Price, M. A., Berg, R. T.
A trial is reported comparing the growth and carcass characteristics ofbulls of three breed-types: Hereford crossbred (HC), beef synthetic (SY) and dairy crossbred (DC).
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Effects of calf- and yearling-fed beef production systems and growth promotants on production and profitability
Download2013
Baron, V. S., López-Campos, O., Aalhus, J. L., Basarab, J. A., Okine, E. K.
In each of 2 yr, 112 spring-born steers were used to evaluate the effect of calf-fed vs. yearling-fed with and without growth implant and β-adrenergic agonist on production parameters and economic potential. Steers were grouped into: (1) non-implanted feeders harvested at 11–14 mo of age, (2)...
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1985
Chaudhary, Z. I., Price, M. A., Makarechian, M.
The effects of zeranol were studied in 24 steers and 24 bulls starting at an average weight of 200 kg for a trial period of 183 days. Bulls grew faster than steers (P = 0.07) and zeranol-treated cattle showed higher average daily gain than controls (P < 0.05); there was no significant interaction...
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1985
Price, M. A., Butson, S., Chaudhary, Z. I., Makarechian, M.
Thirty-two cull cows aged from 1 to 13 yr were allocated to five age groups and fed individually for 82 days, then slaughtered. Half of the cows within each group were implanted with 36 mg of zeranol. Zeranol had no significant effect on average daily gain, feed efficiency or backfat thickness,...
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Estimation of genetic and phenotypic parameters for ultrasound and carcass merit traits in crossbred beef cattle
Download2014
Bruce, H. L., Plastow, G. S., Moore, S. S., Wang, Z., Nkrumah, D., Miar, Y., Durunna, O.
Ultrasound measurements of 852 crossbred steers along with carcass merit measurements on 756 of them were used to examine their genetic and phenotypic parameters. Traits including ultrasound backfat thickness (UBF), ultrasound ribeye area (UREA), ultrasound marbling (UMAR), carcass weight (CWT),...
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1980
Jones, S. D. M., Berg, R. T., Price, M. A.
A trial is reported comparing half-carcass fat partitioning in 12 bulls and 12 heifers each of two breed-types: Hereford (HE) and Dairy Synthetic (DY). These animals were serially slaughtered from weaning (163 ± 15.1 (SE) days) to approximately 16 mo of age. After slaughter, one side of each...
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1993
Jones, S. D. M., Newman, J. A., Vincent, B. C., Price, M. A.
A total of 120 crossbred heifers (initial weight = 270 ± 3 kg) were used in a project to evaluate a once-calved-heifer system of beef production. They were reared on a cereal silage–grain diet and, beginning at an average age of 385 d, exposed during a 6-wk breeding period to bulls of breeds...
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2004
Price, M. A., Chen, J-Q., Okine, E. K., Khorasani, G. R.
Four diets in which peas progressively replaced barley [0% (0P), 30% (30P), 50% (50P), and 100% peas (100P)] and one in which canola meal (CM) replaced 10% of the barley, were fed to 90 beef heifers (initial weight 215.8 ± 13.8 kg). The heifers achieved average daily gains (ADGs) of 0.72, 0.80,...
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1978
Price, M. A., Berg, R. T., Jones, S. D. M.
Carcass composition and growth patterns for muscle and bone were compared among three breed-types (Hereford crossbred, (HC), beef synthetic (SY) and dairy crossbred (DC)).