The additive & multiplicative Correction Factors (CFs)were developed for various systemic sources which affect the milk yield as age at calving (AAC),days open or service period (DOPN),days dry or dry period (DDRY) & lactation length (LL) by using 1648 lactation records of 491 crossbred cows generated under ALL INDIA CO-ORDINATED RESEARCH PROJECT (AICRP) on cattle at Jabalpur station. These CFs were used simultaneously to correct the milk yield & the effectiveness of the correction was judged by comparing the h2 ,r & residual variance (RV) of the uncorrected & the corrected 300 day milk yield.

Pompa, H. KB Parekh

Proceedings of the World Congress on Genetics Applied to Livestock Production, Volume 23: Opening: plenary; technology; transfer; beef cattle; dairy cattle; pigs., , 407–410, 1998
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