• Shivajee Pal
• Brijesh Singh
• Sachin Dongre
• Javid Ur Rahman
• Thomas Taye

The present investigation is based on the data collected from the history sheet of Sahiwal cattle at the instructional dairy farm of G. B. Pant University of Agriculture and Technology, Pantnagar. The data included information from 184 Sahiwal cattle, the progeny of 21 sires, spanning a period of 31 years from 1986 to 2017. The heritability was estimated by the paternal half-sib correlation method. The heritability estimates for first lactation performance traits viz., age at first calving, calving interval, service period, dry period, lactation length, 305 days lactation milk yield, total milk yield, days to attain peak yield and peak yield were found to be 0.310.23, 0.360.24, 0.510.15, 0.230.21, 0.160.19, 0.430.25, 0.440.24, 0.360.24 and 0.540.27, respectively. The first lactation length have a low estimate of heritability while, other studied traits were medium to highly heritable. The heritability estimates for all lactation performance traits viz., calving interval, service period, dry period, lactation length, 305 days lactation milk yield, total milk yield, days to attain peak yield and peak yield were observed to be 0.510.25, 0.560.20, 0.350.16, 0.290.12, 0.210.10, 0.240.11, 0.420.15 and 0.450.16, respectively. The all lactation performance traits were also medium to highly heritable in the present study. Medium to high heritably estimated revealed that these traits had more additive genetic variance which might be utilized by individual selection.

Heritability, Performance Traits, Paternal Half-Sib and Sahiwal Cattle

"Heritability Estimates of Performance Traits in Sahiwal Cattle", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 5, page no.g425-g431, May-2023, Available :http://www.jetir.org/papers/JETIR2305662.pdf

"Heritability Estimates of Performance Traits in Sahiwal Cattle", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 5, page no. ppg425-g431, May-2023, Available at : http://www.jetir.org/papers/JETIR2305662.pdf