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ThesisItem Open Access HAEMATOLOGICAL, BIOCHEMICAL AND ENDOMETRIAL HISTOMORPHOLOGICAL STUDIES IN POSTPARTUM EWES(SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 2006-06) ANJAIAH, V; MOULI KRISHNA, K(MAJOR); VENU GOPAL NAIDU; SRI LATHA, Ch; MOHAN NAIDU, GThesisItem Open Access EFFECT OF GnRH ON CONCEPTION RATE IN REPEAT BREEDER GRADED MURRAH BUFFALOES(SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 2012-06) VENKAT RAO, B; CHANDRA SHEKAR REDDY, K(MAJOR); SADASIVA RAO, K; PURUSHOTHAM, GABSTRACT: The present investigation “Effect of GnRH on conception rate in repeat breeder graded Murrah buffaloes” was taken up on 86 repeat breeder buffaloes to study the incidence of repeat breeding and various aspects of estrous cycle. The efficacy of GnRH protocols (10μg or 2.5 ml, 20μg or 5.0 ml given 8 hours before AI and on day 12 post AI either once or twice in different treatment groups) for enhancement of fertility was studied in 70 repeat breeding graded Murrah buffaloes. The estrous cycle length in six treatment groups was 21.6±0.69, 20.1±0.43, 20.3±0.58, 21.5±0.34, 21.3±0.54, and 20.2±0.47. The estrus duration in six treatment groups were 23.8±0.36, 24.5±0.31, 23.4±0.48, 24.2±0.47, 23.6±0.40, and 24.3±0.30 and the estrus intensity were 13.2±0.36, 14.1±0.28, 13.7±0.21, 14.1±0.31, 13.1±0.31, 13.2±0.25 days in group 1, group 2, group 3,group 4, group 5, group 6, respectively. In control groups the length of estrous cycle, duration of estrus and intensity of estrus were 21.5±0.60 days, 22.2±0.36 hours and 12.9±0.18 points, respectively. Normal estrus pattern was observed in 87.20 per cent of repeat breeder buffaloes. The repeat breeder buffaloes were randomly divided into seven groups (each group consisting of 10 buffaloes). The repeat breeding buffaloes in group 1 and 2 were treated with 10 μg or 2.5 ml and 20 μg or 5 ml of GnRH (Buserlin) 8 hours before AI, respectively. In group 3 and 4 were treated with 10 μg or 2.5 ml and 20 μg or 5 ml of GnRH on day 12 post AI respectively. Group 5 were treated with 10 μg or 2.5 ml of GnRH (Buserlin) 8 hours before AI and on day 12 of post AI. Group 6 were treated with 20 μg or 5 ml of GnRH (Buserlin) 8 hours before AI and on day 12 of post AI. Group 7 were consisted of untreated control buffaloes. The conception rates of repeat breeding graded Murrah buffaloes in group 1, 2, 3, 4, 5, 6 and control group were found to be 50.00, 60.00, 40.00, 40.00, 50.00, 60.00 and 30.00 per cent, respectively. It was concluded that all treatments significantly (P < 0.05) enhanced the conception in repeat breeder buffaloes when compared to control buffaloes. The GnRH could be effectively used for higher conception rates in repeat breeding buffaloes.ThesisItem Open Access STUDIES ON THE CRYOPRESERVATION AND FERTILITY OF BOVINE SEMEN WITH BlOCIPHOS PLUS DILUTOR(SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 1998-11) KARUNAKARA RAO, N; Seshagiri Rao, A(MAJOR); Subramanyam Naidu, K; Venkateswara Rao, NThesisItem Open Access STUDIES ON OESTROUS CYCLE IN CROSS-BRED PIGS (Large White Yorkshire x Indigenous)(SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 1997) VENKATA RAMANA, KUDIKILLA; SESHAGIRI RAO, A(MAJOR); VENUGOPAL NAIDU, K; VENKATESWARA RAO, N; KRISHNA REDDY, NThesisItem Open Access STUDIES ON THE SEMEN CHARACTERISTICSS AND PRESERVATION IN NATIVE BUCKS WITH PARTICULAR REFERENCE TO PROSTAGLANDIN F2~ AND VITAMIN A TREATMENT(SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 1993-07) VENKATESWARLU, A; VENKATAMUNI CHETTY, A(MAJOR); VENUGOPALA NAIDU, K; RAMA RAO, PThesisItem Open Access FREEZING AND POST THAW SEMEN CHARACTERISTICS OF NATIVE BUCK (capo hircus)(SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 1991-09) KRISHNA MOORTHY, VEDAM; VENKATAMUNI CHETTY, A(MAJOR); RAMACHANDRAIAH, S.V; LAKSHMIPATHI, G.VThesisItem Open Access PROGESTERONE LEVELS 1N PLASMA AND MILK DURING OESTROUS CYCLE AND EARLY PREGNANCY IN BUFFALOE COWS (Bubalus bubalis)(SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 1980) SIVASANKARA RAO, G; NARASIMHA RAO, P(MAJOR); RAMA MOHANA RAO, A; STAYANARAYANA RAO, KThesisItem Open Access INCIDENCE OF INFERTILITY IN CROSSBRED CATTLE WITH SPECIAL REFERENCE TO ANESTRUM(SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 1980) VENUGOPAL NAIDU, K; RAMAMOHANA RAO, A(MAJOR); NARASIMHA RAO, PThesisItem Open Access EFFECT OF lMPROVED HOUSING ON SEMEN QUALITY OF JERSEY AND MURRAH BULLS(SRI VENKATESWARA VETERINARY UNIVERSITY TIRUPATI - 517 502. (A.P.) INDIA, 1980) CHALAPATHY, P.V; RAMAMOHANA RAO, A(MAJOR); NARASIMHA RAO, P; RAMA RAO, P