SIRE EVALUATION USING TEST DAY RECORDS AND 305 DAY MILK YIELD IN FRIESWAL HERD AT DIFFERENT MILITARY DAIRY FARMS IN EASTERN INDIA
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Date
2016
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Anand Agricultural University, Anand
Abstract
The data for the present investigation were obtained from the performance
records of 1249 Frieswal cattle daughters of 71 sires maintained at three Military
Farms viz. Guwahati, Dimapur and Bengdubi of Assam, Nagaland and West Bengal
states respectively of Eastern Command. The data distributed over a period of 13
years from 2000-2012, were used to estimate least-squares means of three traits viz.
lactation length (LL), 305-day milk yield (305-DY) and calving interval (CI). The age
at first calving (AFC) was considered as covariable. Effect of farm, parity, type of
calving, period of birth and season of birth were investigated on these three traits by
least-squares (LS) method.
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