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Use of some milk production efficiency traits for evaluating dairy bulls through progeny testing



Use of some milk production efficiency traits for evaluating dairy bulls through progeny testing



Asian Journal of Dairy Research 8(2): 71-74



The analysis of data on 508 Friesian X Sahiwal crossbred (5/8, 3/4 and 7/8 Friesian inheritance) in their 1st lactation maintained at military farms Ambala and Jalandhar, India, yielded heritability estimates for 1st lactation 300-day milk yield, milk yield per day of 1st lactation length, milk yield per day of 1st calving interval and milk yield per day of age at 2nd calving of 0.154+or-0.101, 0.065+or-0.070, 0.091+or-0.086 and 0.159+or-0.102 resp.

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