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A comparison of reproductive and growth traits of horned and polled cattle in three synthetic beef lines
Download1999
Pang, H., Price, M. A., Goonewardene, L. A., Berg, R. T.
One hundred and thirty-seven cow-calf pairs on pasture in southeastern Alberta, were randomly allocated to one of two treatments no supplement (NOS) or a high by-pass protein (70% of CP) creep supplement (HPS) at an intake of 1.5 kg head−1 d−1. Calf weaning weights and pre-weaning ADG were higher...
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1999
Goonewardene, L. A., Erichsen, C. M., Price, M. A., Liu, M. F., Berg, R. T.
Phenotypically dehorned (genetically horned) and polled bulls were similar for birth, weaning weight, pre- and post-weaning ADG, carcass weight, grade fat, marbling, rib-eye area, cutability and carcass grade. Polled bulls had higher (P < 0.02) fat over the rib-eye compared with dehorned. The...
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1981
A technique is described for meausuring increases in bone length during defined periods before slaughter in cattle. It consists of jugular infusions of oxytetracycline at specified time intervals. Oxytetracycline identifies the sites of ossification in growing bones at the time of infusion by...
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1981
Price, M. A., Berg, R. T., Jones, S. D. M.
A trial is reported comparing the accumulation of lipid in rib cuts from 12 bull and 12 heifer carcasses from two breed types: Hereford (HE) and Dairy Synthetic (DY). Serial slaughter was carried out from weaning (163 ± 15.1 (SD) days) to approximately 16 mo of age. The left side of each carcass...
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Allometric association between in vivo estimation of body composition during growth using deuterium dilution technique and chemical analysis of serial slaughtered pigs
Download2006
Looft, H., Landgraf, S., Kalm, E., Roehe, R., Plastow, G. S., Susenbeth, A., Knap, P. W.
The objective of this study was to develop accurate mathematical-statistical functions to estimate body composition of live pigs between 20 and 140 kg weight from total body water (TBWA) determined by the deuterium dilution technique. Chemical body compositions during the growth period are...
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Development of carcass cuts, organs, body tissue and chemical body composition during growth of pigs
Download2006
Landgraf, S., Roehe, R., Plastow, G. S., Kalm, E., Looft, H., Susenbeth, A., Knap, P. W.
A serial slaughter trial was carried out to examine the developmental change of physical and chemical body composition in pigs highly selected for lean content. A total of 48 pigs (17 females and 31 castrated males) were serially slaughtered and chemically analysed. Eight pigs were slaughtered at...
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Effect of postweaning implantation of zeranol and dietary energy level on growth and reproductive performance of replacement beef heifers
Download1991
Makarechian, M., Arthur, P. F., Price, M. A.
Eighty-one heifer calves weaned at an average age of 6 mo were used to study the effect of postweaning zeranol implantation, on the growth and reproductive performance of heifers fed to grow slowly on three dietary energy levels. Forty heifers were implanted with 36 mg of zeranol at 30 d and...
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1978
Price, M. A., Berg, R. T., Jones, S. D. M.
The relative growth and distribution of bone from 256 bovine carcasses were compared among three breed-types (British, up to 30% Charolais and 30-50% Charolais) and three \"sexes\" (heifers, steers and bulls) over a wide range in carcass weight.
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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).