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A measure for predicting genetic merit for milking and nursing ability in beef cattle

Published online by Cambridge University Press:  02 September 2010

N. Yokoi ,
K. Moriya  and
Y. Sasaki
N. Yokoi
Affiliation:
Department of Animal Science, Faculty of Agriculture, Kyoto University, Sakyo-ku, Kyoto-shi 606-01, Japan
K. Moriya
Affiliation:
Department of Animal Science, Faculty of Agriculture, Kyoto University, Sakyo-ku, Kyoto-shi 606-01, Japan
Y. Sasaki
Affiliation:
Department of Animal Science, Faculty of Agriculture, Kyoto University, Sakyo-ku, Kyoto-shi 606-01, Japan
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Abstract

To determine a best measure for predicting genetic merit for milking and nursing ability in beef cattle, restricted maximum likelihood (REML) estimates of variances and covariances for direct and maternal effect were obtained by using pre-weaning growth records of calves at various stages after parturition until weaning in Japanese Black cattle. Data used in this study were pre-weaning growth records of 1892 Japanese Black calves obtained from the Tottori National Livestock Breeding Station covering the period from 1960 to 1985. Traits analysed were adjusted monthly weights, adjusted monthly heights and cumulative daily gains (DGs) from birth to 1, 2, 3, 4, 5 and 6 months of age. Estimates of variances and covariances were obtained by REML using the DFREML program of Meyer. Results indicate that: (1) the direct effects on pre-weaning growth of calves are the smallest at birth to 1 month of age and then increase; (2) the maternal effects of the dams are the largest for the first 2 months, and then decrease; (3) the contribution of these two effects on calf growth is reversed at 3 or 4 months of age; (4) the non-additive maternal effects exist but are small; and (5) the genetic correlations between direct and maternal effects are low for weight and cumulative DG, whereas those for height are relatively high. These results suggest that DGfrom birth to 2 months of age (DGO-2) is most influenced by the additive maternal effect. Thus, DGO-2 is concluded to be the best measure for predicting genetic merit for milking and nursing ability in beef cattle.

Keywords

beef cattlegenetic meritmaternal effects
Type
Research Article
Information
Animal Science , Volume 65 , Issue 1 , August 1997 , pp. 39 - 43
Copyright
Copyright © British Society of Animal Science 1997

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References

Benyshek, L. L., Johnson, M. H., Little, D. E., Bertrand, J. K. and Kriese, L. A. 1988. Applications of an animal model in the United States beef cattle industry. Journal of Dairy Science 71: (suppl. 2) 35.CrossRefGoogle Scholar
Diaz, C., Notter, D. R. and Beal, W. E. 1992. Relationship between milk expected progeny difference of Polled Hereford sires and actual milk production of their crossbred daughters. Journal of Animal Science 70: 396–402.CrossRefGoogle ScholarPubMed
Henderson, C. R. 1953. Estimation of variance and covariance components. Biometrics 9: 226–252.CrossRefGoogle Scholar
Marston, T. T., Simms, D. D., Schalles, R. R., Zoellner, K. O., Martin, L. C. and Fink, G. M. 1992. Relationship of milk production, milk expected progeny difference, and calf weaning weight in Angus and Simmental cow-calf pairs. Journal of Animal Science 70: 3304–3310.CrossRefGoogle ScholarPubMed
Meyer, K. 1991. DFREML version 2.0 — programs to estimate variance components by restricted maximum likelihood using a derivative-free algorithm. User note. (Mimeograph). Animal Genetics and Breeding Unit, University of New England, Armidale, NSW.Google Scholar
Meyer, K. 1992. Variance components due to direct and maternal effects for growth traits of Australian beef cattle. Livestock Production Science 31:179–204.CrossRefGoogle Scholar
Robison, O. W., Yusuff, M. K. M. and Dillard, E. U. 1978 Milk production in Hereford cows. I. Means and correlations. Journal of Animal Science 47:131–136.CrossRefGoogle Scholar
Rutledge, J. J., Robison, O. W., Ahlschwede, W. T. and Legates, J. E. 1971. Milk yield and its influence on 205-day weight of beef calves. Journal of Animal Science 33: 563–567.CrossRefGoogle ScholarPubMed
Sasaki, Y. 1980. Estimation of the genetic and phenotypic parameters of preweaning growth traits in the Japanese Black Cattle. Japanese Journal of Zootechnical Science 51: 852–859.Google Scholar
Sasaki, Y. 1982. A predicting measure for nursing ability in beef cows. Proceedings of the second world congress on genetics applied to livestock production, Madrid, vol. VIII, pp. 427–432.Google Scholar
Shimada, K., Izaike, Y., Suzuki, O., Oishi, T. and Kosugiyama, M. 1988. Milk yield and its repeatability in Japanese Black cows. Asian-Australasian Journal of Animal Science 1:47–53.CrossRefGoogle Scholar
Willham, R. L. 1963. The covariance between relatives for characters composed of components contributed by related individuals. Biometrics 19:18–27.CrossRefGoogle Scholar