Estimates of genetic parameters for reproductive traits in Brahman cattle breed1
نویسندگان
چکیده
منابع مشابه
Estimates of genetic parameters for growth traits in Brahman cattle using random regression and multitrait models.
Random regression models (RRM) and multitrait models (MTM) were used to estimate genetic parameters for growth traits in Brazilian Brahman cattle and to compare the estimated breeding values obtained by these 2 methodologies. For RRM, 78,641 weight records taken between 60 and 550 d of age from 16,204 cattle were analyzed, and for MTM, the analysis consisted of 17,385 weight records taken at th...
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Heritabilities and genetic and phenotypic correlations were estimated from feedlot and carcass data collected from Brahman calves (n = 504) in central Florida from 1996 to 2000. Data were analyzed using animal models in MTDFREML. Models included contemporary group (n = 44; groups of calves of the same sex, fed in the same pen, slaughtered on the same day) as a fixed effect and calf age in days ...
متن کاملEstimates of genetic parameters and genetic trends for reproductive traits and weaning weight in Tabapuã cattle.
The Tabapuã breed is a beef cattle Brazilian breed known for its sexual precocity and desirable characteristics for tropical conditions. However, this is a newly formed breed and few studies have been conducted regarding genetic parameters and genetic trends for its reproductive traits. The objective of the present study was to estimate the genetic parameters, genetic trends, and relative selec...
متن کاملEstimated genetic parameters for palatability traits of steaks from Brahman cattle.
Heritabilities and genetic and phenotypic correlations were estimated from carcass and beef palatability data collected from Brahman calves (n = 504) born in central Florida from 1996 to 2000. Traits evaluated included Warner-Bratzler shear force (after 7, 14, and 21 d of aging), panel tenderness score, connective tissue amount, juiciness, flavor intensity, and off flavor (after 14 d of aging),...
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ژورنال
عنوان ژورنال: Journal of Animal Science
سال: 2015
ISSN: 0021-8812,1525-3163
DOI: 10.2527/jas.2015-8970