Crossbred holstein friesian bulls

The objective of the study was to assess the effects of non-genetic factors such as farm, order of ejaculate, period, season of collection and age of the bull on semen quality traits of crossbred Holstein Friesian (CBHF) bulls. Data on a total of 22442 ejaculates from 72 CBHF bulls collected during the period from 1996 to 2014 were obtained from three organized farms in Tamil Nadu, India.

11p gaocaolon5 14-06-2020 12 1   Download

Data maintained on 742 breeding bulls of different breeds indicated that 213 cases were affected during 3 year period and 78 cases were treated by surgical interventions. Surgical cases recorded were as lameness 51 (23.94%), major affections 09 (4.23%) and minor affections 18 (8.45%). Lameness was highest in purebred Holstein Friesian (7.04%) compared to purebred Jersey bulls (0.94%), while it was highest in crossbred Holstein Friesian (8.92%) compared to crossbred Jersey bulls (1.41%). Proper hoof trimming was mainly essential tool in early recovery of hoof lameness.

4p cothumenhmong3 22-02-2020 15 1   Download