Indian Journal of Animal Research
SCOPUSWeb of Science
  • Year: 2012
  • Volume: 46
  • Issue: 2

Reproductive performance of dairy cows under field condition of Assam state*

  • Author:
  • Jakir Hussain, R. Roychoudhury, G.C. Das, D.C. Mili, R.N. Goswami
  • Total Page Count: 4
  • Page Number: 180 to 183

College of Veterinary Science, Assam Agricultural University, Khanapara, Guwahati-781 022, India

**Corresponding author's, email: drjakir@gmail.com

*Part of M.V. Sc. thesis submitted by first author

Abstract

The data was generated on field scale by personal interviews with the livestock owners in Assam. The least square means of service period, gestation period and calving interval for Jersey X Local cows were 118.33 ± 1.63, 275.74 ± 0.46 and 393.68 ± 1.64 days, respectively. The corresponding values for Holstein Friesian X Local were 146.96 ± 1.85, 275.81 ± 0.53 and 422.26 ± 1.85 days and that of Local cows as 265.06 ± 1.87, 274.12 ± 0.53 and 538.32 ± 1.85 days, respectively. The effect of genetic group, season of calving and parity was highly significant (p<0.01) on service period and calving interval. The gestation period was significantly (p<0.05) influenced by genetic group.

Keywords

Service period, Gestation period, Calving interval, Local cows, Crossbred cows