FERTILITY IMPROVEMENT THROUGH SYNCHRONIZATION OF OESTRUS IN COWS
Keywords:
PSMT, Prostaglandin, GnRH, Conception rateAbstract
The objective of the present research work was to study the efficacy of PGF2a for oestrus synchronization
and GnRH on conception rate in synchronized cows under field condition. Totally 50 normal cyclic postpartum
cows were selected from field condition and divided into five groups, containing ten experimental cows in each
group. These groups were divided mainly as control group, hormonal treated group and non hormonal treated
group. Out of thirty treated cows with PGF2a, twenty three (77.77%) and thirty (100 %) cows responded after first
and 11 th day treatment .In Group-II 2 (20%) cows exhibited oestrus up to 30 days after pre synchronization
treatment. The time required for onset of oestrus differs significantly in hormonal and non hormonal treated
groups. Conception rate was higher in Group-IV than other groups which differ significantly in different groups.