Vol. 12, Special Issue 7 (2023)

The present investigation was undertaken on 251 Kankrej cows maintained at Livestock Research Station, Sardarkrushinagar Dantiwada Agricultural University, Sardarkrushinagar, Gujarat over 15 years (2001-2015) to determine the effect of genetic and non-genetic factors on lifetime calf production traits. The study revealed that averages of the number of calves born per cow, number of female calves born per cow and number of female calves reaching milking herd per cow were 3.17 ±0.15, 2.01±0.99 and 1.79±0.10 respectively. The number of calves born per cow, number of female calves born per cow, number of female calves reaching milking herd per cow were significantly affected by period of first calving, first lactation milk yield and season of first calving except number of calves born per cow which is not affected by season of first calving.