Hostname: page-component-745bb68f8f-d8cs5 Total loading time: 0 Render date: 2025-01-12T04:01:43.853Z Has data issue: false hasContentIssue false
  • English
  • Français

Genetic studies on peak yield in Holstein Friesian × Sahiwal cross-bred cattle

Published online by Cambridge University Press:  27 March 2009

K.S. Deshpande  and
H. S. Bonde
H. S. Bonde
Affiliation:
Department of Animal Genetics and Breeding, Marathwada Agricultural University, Parbhani 431 402, India
Get access Rights & Permissions [Opens in a new window]

Summary

Analyses of data on first peak yields of 1346 Holstein Friesian (HF) × Sahiwal crossbred cows belonging to four Indian military dairy farms were carried out. There were highly significant differences amongst different grades. The < ⅛ HF had the minimum (9·35 kg) and £ HF had the maximum (12·77 kg) peak yield during first lactation. Half-breds appeared to be most suited for peak production. Genetic grades, farms and periods of calving had highly significant, and season of calving had significant, influences on peak yield in cross-bred cows. Heritability of peak yield was 0·405±+ 0·023. Peak yield had highly significant and positive genetic and phenotypic correlations with total lactation yield, 300-day milk yield, milk yield per day of first calving intervaland milk yield per day of age at second calving. Interval, in days, between the dates of first and second calvings was considered the first calving interval. Age, in days, at the time of second calving was considered age at second calving. The high heritabilities and desirable correlations indicate the possibility of satisfactory correlated response in thesetraits, if selection is based on peak yield.

Type
Research Article
Information
The Journal of Agricultural Science , Volume 97 , Issue 3 , December 1981 , pp. 707 - 711
Copyright
Copyright © Cambridge University Press 1981

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Arora, V.K. & Desai, R. N. (1979). Level of performance and interrelationship between various production traits in two categories of cross-breds maintained on military farms in North India. Indian Veterinary Medical Journal 3, 1–4.Google Scholar
Dickerson, G.E. (1960). Techniques for research in quantitative animal genetics. Techniques and Procedures in Animal Production Research, p. 57. American Society of Animal Production.Google Scholar
Hakvey, W.R. (1975). Least Squares Analysis of Data with Unequal Sub-class Numbers. USDA, ARS, H-4.Google Scholar
Hazel, L. N., Baker, M. L. & Reinmiller, C.F. (1943). Genetic and environmental correlations between growth rate of pigs at different stages. Journal of Animal Science 2, 118–128.CrossRefGoogle Scholar
Hazel, L. N. & Terrill, C. E. (1945). Heritability of weaning traits in Range Columbia, Corriedale and Targhee lambs. Journal of Animal Science 5, 371–377.CrossRefGoogle Scholar
Khanna, R.S. & Bhat, P.N. (1972). Genetic and nongenetic factors associated with first five lactation yields of Sahiwal Friesian crosses. Indian Journal of Animal Sciences 48, 712–716.Google Scholar
Koul, G. L., Kaushik, S. N. & Katpatal, B. G. (1977). Studies on peak yield and day to attain peak yield in cross-bred cows. Indian Journal of Dairy Science 30, 151–153.Google Scholar
Kramer, C. Y. (1957). Extension of multiple range tests to group correlated adjusted means. Biometrics 13, 13–18.CrossRefGoogle Scholar
Naidu, K. N. & Desai, R. N. (1966). Genetic studies on Holstein Friesian × Sahiwal cattle for their suitability in Indian tropical conditions as dairy animals. Indian Journal of Veterinary Science 36, 61–71.Google Scholar
Ram, S. & Chaudhary, A. L. (1976). Biometrical studies of peak yield in Friesian × Sahiwal crosses. Indian Journal of Dairy Science 29, 268–271.Google Scholar
Searle, S. R. (1961). Phenotypic genetic and environmental correlation. Biometrics 17, 474–480.CrossRefGoogle Scholar