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EVALUATION OF ESTRUS SYNCHRONIZATION WITH DIFFERENT DOSES OF PROSTAGLANDIN F2? IN NELLORE JODIPI EWES

KrishiKosh

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Title EVALUATION OF ESTRUS SYNCHRONIZATION WITH DIFFERENT DOSES OF PROSTAGLANDIN F2? IN NELLORE JODIPI EWES
MVSc; NTRCVSc,GVRM; Acc No: D122
 
Creator PRAVEEN KUMAR, K
 
Contributor VEERA BRAMHAIAH, K (Major)
VENKATA NAIDU, G
HARI KRISHNA, N.V.V
EKAMBARAM, B
 
Subject JODIPI EWES; ESTRUS SYNCHRONIZATION; PROSTAGLANDIN; NELLORE; Cloprostenol sodium; PGF2?
 
Description THESES
ABSTRACT :
The present investigation was undertaken to synchronize Nellore Jodipi cyclic ewes to compare the effectiveness of two doses of double PGF2? (Cloprostenol sodium) @ either 125 or 250 ?g with 9 d interval in Group I and Group II ewes to assess the estrus response and fertility rate after timed AI. Estrus response was assessed by apronised rams for a period of 1 h at 6 h interval between 24 to 72 h from the time of 2nd PGF2? administration. All the ewes were inseminated twice intra cervically at 60 and 72 h after 2nd PGF2? administration.

The estrus response (%), onset of estrus (%), duration of estrus (h) and intensity of estrus in ewes synchronized by prostaglandin F2?were 80.95 and 85.71; 50.94+3.12 and 48.00+3.40; 24.35+1.41 and 28.22+1.15 and 6.76+0.29 and 6.83+0.34 in Group I and II, respectively.
The mean serum progesterone concentrations on various days of synchronization i.e., on day of first PGF2?, on day of second PGF2?, on day of insemination and on the day 18 post insemination were 4.68+0.31 and 3.12+0.19; 2.45+0.14 and 4.02+0.30; 1.47+0.12 and 1.15+0.10 and 5.12+0.18 and 5.49+0.13 ng/ml in Group I and Group II, respectively. The conception rate based on 25 d non return rate was 85.71 and 80.95 % with an overall lambing rate of 71.43 and 66.67 % in Group I and II, respectively.
ABSTRACT :
The present study has revealed that Nellore Jodipi ewes can be synchronized by 125 and 250 ?g of double PGF2? (Cloprostenol sodium) with 9 d apart with satisfactory results. But the synchronization response among 42 Nellore Jodipi ewes by 125 ?g of PGF2? was slightly lesser but the lambing rate was higher and non-significant than 250 ?g of PGF2?.
DEPARTMENT OF VETERINARY GYNAECOLOGY AND OBSTETRICS
N.T.R COLLEGE OF VETERINARY SCIENCE, GANNAVARAM
SRI VENKATESWARA VETERINARY UNIVERSITY
TIRUPATI ? 517 502
 
Date 2016-12-06T18:30:42Z
2016-12-06T18:30:42Z
2015-10
 
Type Thesis
 
Identifier http://krishikosh.egranth.ac.in/handle/1/89331
 
Language en
 
Format application/pdf
 
Publisher SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI ? 517 502 ,A.P