HERITABILITIES OF WEANING WEIGHT, YEARLING WEIGHT, AND CLEAN FLEECE WEIGHT IN RANGE ROMNELET SHEEP
نویسندگان
چکیده
منابع مشابه
Birth Weight Weaning Weight Yearling Weight Scrotal Circum
Understanding and using EPDs continues to be a popular topic among cattle producers because of their effectiveness when properly used in genetic selection. Use of EPDs, as with many other standard management tools, is not required to survive in the beef cattle business, but those who do will excel in terms of genetic improvement. With so many traits to monitor in a cow herd, producers should no...
متن کاملGenetic analysis of fleece and post-weaning body weight traits in Makuie sheep.
Estimation of genetic parameters is the most important component of an organized selection program. With respect to economic traits, such as wool and mutton traits, production costs can be reduced through a suitable selection program focused on genetic improvement. This study aimed to evaluate genetic parameters of fleece and post-weaning growth traits in sheep. Greasy fleece weight at 6, 16, 2...
متن کاملGenetic parameters for docility, weaning weight, yearling weight, and intramuscular fat percentage in Hereford cattle.
Cattle behavior, including measures of docility, is important to beef cattle producers not only from a human safety perspective but also due to potential correlations to economically relevant traits. Field data from the American Hereford Association was used to estimate genetic parameters for chute score (CS; = 25,037), weaning weight (WW; = 24,908), yearling weight (YW; = 23,978), and intramus...
متن کاملGenetic response to selection for weaning weight or yearling weight or yearling weight and muscle score in Hereford cattle: Efficiency of gain, growth, and carcass characteristics1,2,3
An experiment involving crosses among selection and control lines was conducted to partition direct and maternal additive genetic response to 20 yr of selection for 1) weaning weight, 2) yearling weight, and 3) index of yearling weight and muscle score. Selection response was evaluated for efficiency of gain, growth from birth through market weight, and carcass characteristics. Heritability and...
متن کاملGenetic response to selection for weaning weight or yearling weight or yearling weight and muscle score in Hereford cattle: efficiency of gain, growth, and carcass characteristics.
An experiment involving crosses among selection and control lines was conducted to partition direct and maternal additive genetic response to 20 yr of selection for 1) weaning weight, 2) yearling weight, and 3) index of yearling weight and muscle score. Selection response was evaluated for efficiency of gain, growth from birth through market weight, and carcass characteristics. Heritability and...
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ژورنال
عنوان ژورنال: Canadian Journal of Animal Science
سال: 1961
ISSN: 0008-3984,1918-1825
DOI: 10.4141/cjas61-014