ESTRUS INDUCTION AND FECUNDITY IN NON-DESCRIPT GOATS WITH DIFFERENT DOSES OF PMSG
Loading...
Date
2019-12
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
The present study aimed to evaluate the efficacy of estrus response (behavioural and physiological signs),
conception and fecundity rate in synchronized does using intravaginal progesterone sponges (AVIKESIL–S)
in situ for 11 days and 125 μg Cloprostenol (i.m.) on day 10, followed by intramuscular injection of 0 I.U.
(GroupI), 100 I.U.(GroupII), 200 I.U.(GroupIII) and 400 I.U.(GroupIV) of PMSG (Pregnant Mare Serum
Gonadotropin) on day 11,at the time of sponge removal. Does without any hormonal treatment was considered
as control. All does were let for natural service by proven bucks. The percentage of does in estrusin control,
GroupI, GroupII, GroupIII and GroupIV were 70, 80, 100, 100 and 100 per cent, respectively. The expression
of physiological signs were more pronounced and significantly (P<0.01) higher in Groups II, III and IV. The
mean (±SE) duration of estrus was 40.93±1.49, 41.03±1.33, 42.20±1.32, 46.27±1.47 and 49.50± 0.94 hrs in
control, Group I, Group II, Group III and Group IV, respectively. The duration of estrus was significantly
(P<0.01) longer in does of Group IV when compared to control and other groups. The conception rate of
control, and groupsI, II, III and IV was 52.40, 54.16, 63.33, 73.33 and 66.67 per cent, respectively and a
higher kidding rate was observed in Group III. The fecundity rate was found to be significantly higher in
Groups III (2.14) and IV(2.15),respectively compared to GroupsI(1.62) and II(1.58). Thus cost effective
estrus synchronization can be achieved with 200 I.U. PMSG in progesterone primed non-descript local goats
with tight synchrony, improved conception, kidding and fecundity rates under field conditions.
Description
TNV_35thVCRI_CA_Dec-2019_SRSO-11
Keywords
Veterinary Science