EFFICACY OF CIDR PROTOCOL WITH FIXED TIME INSEMINATION IN CROSSBRED DAIRY COW
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Date
2014-11
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Abstract
The study was conducted to determine the efficacy of CIDR protocol with fixed time insemination
in crossbred dairy cows. Out of 283, group 1 calved animals (n = 164) and heifers animals (n =
119) were inserted with CIDR for 7 days, on 8th day of CIDR inserted animals injected 2 ml of
PGF2x i/m to all these animals followed by removal of CIDR on 9th day and fixed time AI at 48
and 72 hours after CIDR devise removal. The Oestrus expression rate was higher in heifers
groups (65.14%) than calved animals (34.86%). Pregnancy rates for first service following of
estrus were 104 (63.41%) and 77 (64.00%) in calved animals and heifer respectively. The over
all conception rate for first service following of oestrus was 181 (63.71%). Pregnancy rate for
subsequent service were 26 (43.33%) and 18 (42.86%) in calved animals and heifers respectively.
The over all conception rate for subsequent service was 45 (44.28%). Over all conception rate
after 2 oestrus cycle period programme was 225 (79.51%). Conception rate between first and
second services were 63.71% and 43.10%. There is significant difference between first service
and second service were noticed.
Description
TNV_ASVM_2014_2(4) 1-3
Keywords
Veterinary Science