National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692
Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
The records pertaining to 1049 lactations of 382, Phule Triveni cows maintained at Research Cum Development Project on Cattle, MPKV, Rahuri over a period of 40 years from1977-2016, were used for research work. The least squares means of milk production traits and persistency of milk yield were estimated by considering the effect of period of calving, season of calving, order of lactation, age at first calving and peak milk yield. The data were first adjusted for the significant effect of non-genetic factors considered in this study and then stepwise regression analysis was carried out. Persistency of milk yield was significantly affected by period of calving, season of calving, order of lactation and peak milk yield. The lactation milk yield can be (R2-96.8 %) predicted by using persistency index P6 including lactation length and peak milk yield by using Y= -2967.97+14.74 PI+ 0.18 LL+ 195.76 PMY equation in Phule Triveni cattle.
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