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Heritability of milk yield at different environmental levels

Published online by Cambridge University Press:  02 September 2010

L. D. VanVleck
Affiliation:
Cornell University, Ithaca, New York, U.S.A.
G. E. Bradford
Affiliation:
Cornell University, Ithaca, New York, U.S.A.
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Extract

Milk production records from 5740 first lactation Holstein-Friesian daughter-dam pairs were studied to determine if heritability was related to herd production level. Heritability from daughter-dam regression was essentially constant at 10 environmental levels based on either the dam's or daughter's herdmate deviation from season average yield. The heritability estimate over all levels of yield was 0·43 (with standard error 0·03) which is higher than most estimates. Estimates of heritability from paternal half-sib correlations for four environmental levels and based on data from 2568 daughters of A.I. sires generally increased as the herd production level increased. The highest half-sib estimate was 0·42 and the lowest 0·17. Daughter-dam estimates from the same data were essentially constant over the four herd levels.

Total variation increased as herd level increased, in agreement with previous reports.

Heritability was found not to differ between seasons of calving.

Type
Research Article
Copyright
Copyright © British Society of Animal Science 1964

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References

REFERENCES

Abplanalp, Hans, 1962. Modification of selection limits in the fowl. Genet. Res., 3: 210.CrossRefGoogle Scholar
Bradford, G. E. & Vanvleck, L. D., 1964. Heritability in relation to selection differential in cattle. Genetics, 49: 819.Google Scholar
Burnside, E. B. & Rennie, J. C. 1961. The heritability of milk yield at different levels of production and the effect of production differences on dairy sire appraisals. J. Dairy Sci., 44: 1189 (Abstr.).Google Scholar
Falconer, D. S., 1952. The problem of environment and selection. Amer.Nat., 86: 293.Google Scholar
Falconer, D. S., 1960. Selection of mice for growth on high and low planes of nutrition. Genet. Res., 1: 91.Google Scholar
Falconer, D. S. & Latyszewski, M., 1952. The environment in relation to selection for size in mice. J. Genet., 51: 67.CrossRefGoogle Scholar
Fowler, S. H. & Ensminger, M. E., 1960. Interactions between genotype and plane of nutrition in selection for rate of gain in swine. J. Anim. Sci., 19: 434.CrossRefGoogle Scholar
Fredeen, H. T. & Jonsson, P., 1957. Genie variance and covariance in Danish Landrace swine as evaluated under a system of individual feeding of progeny test groups. Z. Tierz.ZüchtBiol., 70: 348.Google Scholar
Gravert, H. O., 1958. Untersuchungen iiber die Heritabilität der Butterfettleistung. Z. Tierz. ZüchtBiol., 71: 155.CrossRefGoogle Scholar
Gravert, H. O., 1959. Zur Berwertung der Milchfettleistung in absoluten oder prozentischen Zahlen. Züchtungskunde, 31: 345.Google Scholar
Hammond, J., 1947. Animal breeding in relation to nutrition and environmental conditions. Biol. Rev., 22: 195.CrossRefGoogle ScholarPubMed
Johansson, I., 1953. The manifestation and heritability of quantitative characters in dairy cattle under different environmental conditions. Acta genet. Statist, med., 4: 221.Google Scholar
Korkman, N., 1953. Versuch einer Vergleichenden Nachkommenschaftsuntersuchung von Bullen die in Herden mit Verschieden starker Fütterung wirken. Z. Tierz. ZüchtBiol., 61: 375.Google Scholar
Legates, J. E., 1957. Heritability of fat yields among herds at different levels of production. J. Dairy Sci., 40: 631 (Abstr.).Google Scholar
Legates, J. E., 1962. Heritability of fat yields in herds with different production levels. J. Dairy Sci., 45: 990.CrossRefGoogle Scholar
Lush, J. L., 1945. Animal Breeding Plans. Iowa State College Press, Ames, Ia.Google Scholar
Mason, I. L. & Robertson, A., 1956. The progeny test of dairy sires on different levels of production. J. agric. Sci., 47: 357.CrossRefGoogle Scholar
Mitchell, R. G., Corley, E. L. & Tyler, W. J., 1961. Heritability, phenotypic and genetic correlations between type ratings and milk and fat production in Holstein-Friesian cattle. J. Dairy Sci., 44: 1502.CrossRefGoogle Scholar
Rendel, J. M., Robertson, A., Asker, A. A., Khishin, S. A. & Ragab, M. T., 1957. The inheritance of milk production characteristics. J. agric. Sci., 48: 426.CrossRefGoogle Scholar
Robertson, A., O'Connor, L. K. & Edwards, J., 1960. Progeny testing dairy bulls at different management levels. Anim. Prod., 2: 141.Google Scholar
Touchberry, R. W., 1963. Heritability of milk and fat yield and fat per cent at different levels of milk yield. J. Dairy Sci., 46: 620 (Abstr.).Google Scholar
Vanvleck, L. D., 1963. Genotype and environment in sire evaluation. J. Dairy Sci., 46: 983.Google Scholar