Comparative study on the incidence of mastitis during different parities in cows and buffaloes.

摘要

The data was collected for the twelve years period to find out the effect of parity and breed on incidence of mastitis. The parity number significantly influenced mastitis incidence in indigenous (P<0.05) and crossbred cows (P<0.01) but in Murrah buffaloes the effect was non-significant. The mastitis incidence was lower in first parity than the rest of parity and increased with increase in parity number. Incidence of mastitis was also influenced by breed and was maximum in crossbred cows in comparison to indigenous cows and Murrah buffaloes. It was concluded that increase in parity result in increased incidence of mastitis in cows and buffaloes and the differential incidence was due to breed effect in the same parity.