Sire evaluation using REML and conventional methods for first lactation 300 day milk yield in Phule Triveni cattle

G S AMBHORE; AVTAR SINGH; D K DEOKAR; MANVENDRA SINGH; VED PRAKASH; S K SAHOO

doi:10.56093/ijans.v88i3.78376

Authors

G S AMBHORE Subject Matter Specialist, CBF, Igatpuri (MAFSU)
AVTAR SINGH Principal Scientist (Retd.), ICAR-National Dairy Research Institute, Karnal, Haryana 132 001 India
D K DEOKAR Assistant Professor, RCDP, MPKV, Rahuri
MANVENDRA SINGH PhD Scholar, AGB Division, ICAR-National Dairy Research Institute, Karnal, Haryana 132 001 India
VED PRAKASH Scientist, AGB Division, ICAR-CAZRI
S K SAHOO Assistant Professor, AGB Division, GADVASU

https://doi.org/10.56093/ijans.v88i3.78376

Keywords:

First lactation 300 day milk yield, Phule Triveni, REML, Sire evaluation

Abstract

The present study was undertaken to estimate the breeding values of 55 Phule Triveni sires for first lactation 300 day or less milk yield (FL300DMY) by using four different sire evaluation methods/models viz. Least Squares (LS), Simple Regressed Least Squares (SRLS), Best Linear Unbiased Prediction-Sire model (BLUP-SM) and Restricted Maximum Likelihood Method (REML). The REML method produced lowest error variance for FL300DMY and it was considered to be the most efficient method. The BLUP-SM method was second efficient followed by SRLS and LS methods. The estimated breeding values of sires for FL300DMY under study showed large variation between estimated breeding values of sires which revealed more genetic variation in the herd.

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