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Estimation of lactation yield from incomplete lactation records

, : Estimation of lactation yield from incomplete lactation records. Journal of the Indian Society of Agricultural Statistics 44(3): 216-226

In order to estimate the lactation yield of cattle and buffaloes, daily milk yield is recorded at systematic time intervals during the entire lactation period for a sample of selected animals. It may not always be possible, however, to obtain milk records at every time interval for all the selected animals. Two alternative estimators of average lactation yield under village conditions are suggested.

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Pander, B.L.; Hill, W.G., 1993: Genetic evaluation of lactation yield from test day records on incomplete lactation. Genetic prediction of heifer 305-day lactation yield from complete test day records or from records in progress was investigated. The accuracies of genetic indices to predict breeding value for total yield from all 10 test day records of milk, fat...

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