Estimation of genetic gain in milk yield by selection in a closed herd of dairy cattle (original) (raw)

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Summary

1. 1. Methods of estimating the rate of genetic gain achieved in animal improvement are discussed and criticized.
2. 1. A theoretical method of estimation of the maximum possible genetic gain of milk yield under direct selection is presented for a closed herd of dairy cattle. The maximum possible gain is approximately 1% of the average yield.
3. 1. The method can also be used for the estimation of genetic gain from the selection practised in an actual, herd. An estimated gain of milk yield of 0.7% per year is given for one herd.

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References

• Bonnier, G., Hansson, A. &Skjervold, H. (1948). Studies on monozygous cattle twins. IX. The interplay of heredity and environment on growth and yield.Acta Agric. Suec. 3, 1.
  Google Scholar
• Dickerson, G. E. &Hazel, L. N. (1944) The effectiveness of selection on progeny performance as a supplement to earlier culling in livestock.J. Agric. Res. 69, 459.
  Google Scholar
• Fisher, R. A. &Yates, F. (1938).Statistical Tables for Biological, Agricultural and Medical Research. Edinburgh: Oliver and Boyd.
  Google Scholar
• Lörtscher, H. (1937). Variationsstatistische Untersuchungen an Leistungs-Erhebungen in einer British Friesian Herde.Z. Zücht. B,39, 257.
  Google Scholar
• Lush, J. L. (1946).Animal Breeding Plans. Ames, Iowa: Iowa State College Press.
  Google Scholar
• Nelson, R. H. (1943). Measuring the amount of genetic changes in a herd average.J. Anim. Sci. 2, 358,
  Google Scholar
• Pearson, K (Ed.) (1931).Tables for Statisticians and Biometricians, Part II. Cambridge University Press.

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Authors and Affiliations

1. Animal Breeding and Genetics Research Organization, Institute of Animal Genetics, Edinburgh
   J. M. Rendel & Alan Robertson

Authors

1. J. M. Rendel
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2. Alan Robertson
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Rendel, J.M., Robertson, A. Estimation of genetic gain in milk yield by selection in a closed herd of dairy cattle.Journ. of Genetics 50, 1–8 (1950). https://doi.org/10.1007/BF02986789

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• Issue Date: June 1950
• DOI: https://doi.org/10.1007/BF02986789

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