1987
DOI: 10.2527/jas1987.643728x
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Variance and Covariance Estimates for Maternally Influenced Beef Growth Traits2

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Cited by 43 publications
(45 citation statements)
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“…The heritability estimate of the maternal additive genetic effect (h 2 m ) for weight at weaning was higher than the values reported by Albuquerque & Meyer (2001) The value of 0.30 estimated for the heritability of direct genetic effect (h 2 a ) for weight at weaning (Table 3) was higher than 0.28 estimated by Bertrand & Benyshek (1987) for the Brangus breed and of 0.23 reported by Everling et al Pons et al (1989) for the Hereford breed (0.37). Somehow, the obtained heritability values are included in the range found in the literature for both pure populations and to crossbreed.…”
Section: Resultscontrasting
confidence: 48%
“…The heritability estimate of the maternal additive genetic effect (h 2 m ) for weight at weaning was higher than the values reported by Albuquerque & Meyer (2001) The value of 0.30 estimated for the heritability of direct genetic effect (h 2 a ) for weight at weaning (Table 3) was higher than 0.28 estimated by Bertrand & Benyshek (1987) for the Brangus breed and of 0.23 reported by Everling et al Pons et al (1989) for the Hereford breed (0.37). Somehow, the obtained heritability values are included in the range found in the literature for both pure populations and to crossbreed.…”
Section: Resultscontrasting
confidence: 48%
“…Brown and Galvez (1969) were higher than later estimates in the literature for beef (Koch 19721, Bwfening et al 1982;Bertrand and Benyshek 1987) and dairy cattle (Philipsson 1976 (Trus 1986). The choice of relative emphasis should be determined primarily by breeding system and practical considerations.…”
contrasting
confidence: 49%
“…However, these estimates were not significantly different from zero. Maternal genetic effects have been described in domestic mammals such as swine (18,21) and beef cattle (3,15) and represent an environmental effect on the growth of offspring from birth to weaning. However, dairy calves are separated from their dams at birth so that the influence of the dam would be only through intrauterine environment.…”
Section: Resultsmentioning
confidence: 99%
“…2 Phenotypic variances: (kilograms) 2 /1000 for milk, kilograms squared for fat, and (percentage) 2 × 10,000 for fat percentage. ditive direct and maternal effects, Model [4] was as Model [3] but excluding sire by herd interactions effects, Model [5] was as Model [3] but excluding cytoplasmic effects, and Model [6] was as Model [5] but excluding sire by herd interaction effects.…”
Section: Methodsmentioning
confidence: 99%
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