ESTIMATION OF GENETIC TRENDS FOR CANADIAN STATION-TESTED BEEF BULLS
نویسندگان
چکیده
منابع مشابه
Estimation of Carcase Composition of Beef Bulls
The regression of muscle:bone ratio on carcase weight was 0.0055 k 0.0017 kg. The mean muscle: bone ratio adjusted to a carcase weight of 213 kg was 3.99 * 0.20. There was little variation in muscle:bone ratio among individuals and the differences between sire progeny groups were not significant. However, the number of progeny within each group was small and a wider sampling is required to esta...
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Purebred Angus (n = 96) and Polled Hereford (n = 96) bull calves sired by bulls of either low or high yearling weight performance lines were assigned to either creep-fed or non-creep-fed treatment before weaning for four calf crops. For each breed, after weaning in the fall, half of the calves within each of the four groups were fed a high concentrate diet for 189 d after weaning in a feedlot a...
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Objective: Estimation of genetic parameters for Kleiber ratio (KR) and genetic trends for pre-weaning weights of Arabi sheep has not been previously conducted.Methods: Data and pedigree information were collected at the Khuzestan Ramin Agricultural and Natural Resources University, Animal Science Research Station, located in southwest Iran, from 2001 to 2008. (Co)variance components and corresp...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 1988
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas88-005