SYNCHRONIZATION OF ESTRUS IN SIROHI AND JAMNAPARI GOATS OUTSIDE THE BREEDING TRACT AND ITS EFFECT ON REPRODUCTIVE PERFORMANCE: A FIELD STUDY

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dc.contributor.advisorV. CHANDRASHEKARA MURTHY
dc.contributor.authorBABU, M.
dc.date.accessioned2023-11-10T11:02:38Z
dc.date.available2023-11-10T11:02:38Z
dc.date.issued2020-06-01
dc.description.abstractThe objective of the present study was to assess the effectiveness of short-term protocols (7 days) or Ovsynch for the synchronization of estrus in Sirohi and Jamnapari goats, using Avikesil-S or Ovsynch treatments. Fifty adult Sirohi and Jamnapari does each were divided into four equal treatment groups, viz., (i) Group I (N=10) received 350 mg of natural progesterone intravaginal sponges (7 days) + on day of sponge withdrawal 400 IU eCG (ii) Group II (N=10) received 350 mg of natural progesterone intravaginal sponges (7 days) + on day of sponge withdrawal 125 μg PGF2α (iii) Group III (N=10) received 350 mg of natural progesterone intravaginal sponges (7 days) + on day of sponge withdrawal 400 IU eCG and 125 μg PGF2α (iv) Group IV (N= 10) received a GnRH (Day 0), PGF2α (Day 5) and a second dose of GnRH (Day 7) (v) Group V (N=10) similar to group III in addition 500 IU of hCG injected on 5th day post mating. Does were checked for estrus and hand mated. Breed did not have significant effect on any of the estrus and fertility parameters recorded. However, different synchronization protocols have significant effect on interval to estrus, duration of estrus, litter size, type of birth and birth weight. Overall estrus induction rate, conception rate, pregnancy rate, gestation length, kidding rate and Sex ratio of both the breeds did not differ significantly among the different synchronization protocols. Plasma progesterone concentration had significantly increased on 7 days after Avikesil-S insertion and on the day of estrus, its level decreased to basal level in all treatment groups. Administration of hCG five days after estrus significantly increased the plasma progesterone level on 10 days after estrus, but didn’t significantly improved fertility rate. The results of present study indicated that goats in Group III, showed reduced time to onset of estrus, higher estrus response, fecundity, prolificacy, and fertility of Sirohi and Jamnapari does as compared to other treatment groups under local environmental conditions.
dc.identifier.urihttps://krishikosh.egranth.ac.in/handle/1/5810200886
dc.language.isoEnglish
dc.pages222
dc.publisherKARNATAKA VETERINARY, ANIMAL AND FISHERIES SCIENCES UNIVERSITY, BIDAR
dc.subVeterinary Gynaecology and Obstetrics
dc.themeVeterinary Gynaecology and Obstetrics
dc.these.typePh.D
dc.titleSYNCHRONIZATION OF ESTRUS IN SIROHI AND JAMNAPARI GOATS OUTSIDE THE BREEDING TRACT AND ITS EFFECT ON REPRODUCTIVE PERFORMANCE: A FIELD STUDY
dc.typeThesis
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