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M. R. Saseendranath

Kerala Veterinary and Animal Science University, Mannuthy, Thrissur, INDIA

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EFFECT OF SEASON AND PERIOD OF CALVING ON PREDICTED MILK YIELDS IN MURRAH BUFFALOES·

Gopal Dass1, R.C. Sharma

Affiliations

¹Dairy Cattle Breeding Division National Dairy Research Institute, Karnal-132 001, India

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Cite article:- Dass1 Gopal, Sharma R.C. (2025). EFFECT OF SEASON AND PERIOD OF CALVING ON PREDICTED MILK YIELDS IN MURRAH BUFFALOES·. Indian Journal of Animal Research. 34(1): 68-70. doi: .

ABSTRACT

Daily milk yields of 404 Murrah buffaloes in their first lactation over a period of 15 years (1975–89) at this Institute were utilized for predicting 305 day lactation yield using two sampling (systematic and stratified random) methods at three (fortnightly, monthly and bimonthly) sampling intervals. All sampling schemes and intervals overestimated the actual 305 day yield. While the effects of season (5% level of probability) and period (1% level of probability) on predicted yields in systematic and stratified random schemes of three sampling were significant. The regression of milk yield on age at first calving had no significant effect.

KEYWORDS

REFERENCES

Cunningham, E.P. and Vial, V.E. (1968). Indian J.Anim.Res., 7:49-60.
Harvey, W.R. (1966). Least squares analysis of data with unequal subclass numbers. Agricultural Research Service, 20, U.S. Department of Agriculture, 1968.
Kramer, C.Y. (1957). Biometrics, 13:13.
McDaniel, 'B.T. (1969). J.Dairy Sci., 52: 1742-1761

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