Reproductive performance of dairy cows under field condition of Assam state
2012
Hussain, Jakir | Roychoudhury, R. | Das, G.C. | Mili, D.C. | Goswami, R.N.
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 (p0.01) on service period and calving interval. The gestation period was significantly (p0.05) influenced by genetic group.
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Эту запись предоставил Indian Council of Agricultural Research