Effect of Genetic and Non-Genetic Factors on Production Performance of  Sahiwal Cattle

Devesh Singh; C. B. Singh; D.  Kumar; Shive Kumar; B. N. Shahi; B. S. Khadda

doi:10.5455/ijlr.20190727104522

Authors

Devesh Singh Department of Livestock Production Management, College of Veterinary and Animal Sciences G. B. Pant University of Agriculture and Technology, Pantnagar-263145, Uttarakhand, INDIA
C. B. Singh Department of Livestock Production Management, College of Veterinary and Animal Sciences G. B. Pant University of Agriculture and Technology, Pantnagar-263145, Uttarakhand, INDIA
D. Kumar Department of Livestock Production Management, College of Veterinary and Animal Sciences G. B. Pant University of Agriculture and Technology, Pantnagar-263145, Uttarakhand, INDIA
Shive Kumar Department of Livestock Production Management, College of Veterinary and Animal Sciences G. B. Pant University of Agriculture and Technology, Pantnagar-263145, Uttarakhand, INDIA
B. N. Shahi Department of Livestock Production Management, College of Veterinary and Animal Sciences G. B. Pant University of Agriculture and Technology, Pantnagar-263145, Uttarakhand, INDIA
B. S. Khadda Department of Livestock Production Management, College of Veterinary and Animal Sciences G. B. Pant University of Agriculture and Technology, Pantnagar-263145, Uttarakhand, INDIA

DOI:

https://doi.org/10.5455/ijlr.20190727104522

Keywords:

Genetic and Non-Genetic Factors, Lactation Traits, Least-Square Means, Sahiwal

Abstract

The present study was conducted on 308 Sahiwal cows sired by 38 bulls spared over a period of 32 years
(1981- 2012), maintained at instructional dairy farm and AICRP on cattle -Sahiwal (field unit) at
G.B.P.U.A. & T., Pantnagar Uttarakhand and Chak Ganjaria Government Cattle Farm Lucknow, Uttar
Pradesh. The overall least- square means for first lactation milk yield (FLMY), 305 days first lactation milk
yield (305 FLMY), first lactation length (FLL), first peak yield (FPY), and days attain to first peak yield
(DAFPY) were as 1927.50±36.68 kg, 1965.05±27.30 kg, 290.42±5.57 days, 11.15±0.39 kg and 41.78±2.97
days, respectively. Highly significant effect (P<0.01) of sire was observed in all the traits, while season
was found to influence the first lactation milk yield and 305 days first lactation milk yield at 5% level of
significance. The period of calving significantly (P < 0.05) influenced first peak yield while it was non
significantly influencing FLL, FLMY, 305d- FLMY and DAFPY.