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Variations among six genetic groups in relationship between sample test-day daily milk and somatic cell scores of Hungarian Holstein-Friesian

Published online by Cambridge University Press:  20 November 2017

A.A. Amin
A.A. Amin*
Affiliation:
Department of Animal Production, Suez Canal University, 41522-Ismailia–Egypt, aamin@nt.suez.eun.eg.
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Extract

The genetic and phenotypic relationship between somatic cell score (SCS) and milk production has been reported as both negative, positive, whereas phenotypic correlations have been mainly negative (Mrode and Swanson 1996). The aim of the present study is to investigate the variation in associations of test-day SCS with daily milk yield (DY) in six genetic groups of Holstein- Friesian (HF) and Native Hungarian Breed (NHB).

Type
Poster Presentations
Information
Proceedings of the British Society of Animal Science , Volume 2001 , 2001 , pp. 97
Copyright
Copyright © The British Society of Animal Science 2001

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References

Boldman, K. G., Kriese, L. A., Van Vleck, L. D., Van Tassell, C. P. and Kachman, S. D., 1997. A Manual for Use of MTDFREML. A set of programs to obtain estimates of variances and covariances. U.S. Agric. Depart, Agric. Res. Ser.Google Scholar
Mrode, R.A., Swanson, G.J.T. 1996. Genetic and statistical properties of somatic cell count and its suitability as an indirect means of reducing the incidence of mastitis in dairy cattle Animal Breeding abstract 64: 847–857.Google Scholar