000			02725nam a2200205Ia 4500
005			20150918154707.0
008			150525s1998 xx 000 0 und d
041			_aeng
082			_a0669,T
100			_aLiaqat Ali _96349
110			_cDr.Imtiaz Hussain Khan _95608
245			_aRole Of Prostaglandin F2 Alpha And Gonadotrophin Releasing Hormone In Induction Of Oestrus In Postpartum Anoestrus Nili Ravi Buffaloes During Summer
260			_c1998
502			_aIn this experiment, twenty four Nili-Ravi buffaloes 60 days postpartum having history 60 normal postpartum were used. These buffaloes were randomly divided into two equal groups (n=12). Treated buffaloes received single injection of 5mg etiproston at 60 days postpartum. And at 78 days postpartum a single injection of gonadotrophin releasing hormone (GnRH) 0.05mg intramuscularly was given to only those buffaloes which did not showed oestrus after etiproston injection. The observation on different aspects like oestrus response, heat detection, interval to onset of oestrus, artificial insemination and pregnancy diagnosis were studied. The buffaloes in group-1, 75% (n=9) exhibited oestrus. The PGF2atreated buffaloes 16.66% (n=2) exhibited oestrus and GnRH treated buffaloes 70% (n 7) exhibited oestrus. The buffaloes in group II 16.66% (n2) exhibited oestrus. The behavioural signs noted were; acceptance of teaser bull, frequent urination, bellowing, licking of external genitalia, mounting by other buflaloes, and raised tail. The physical changes recorded were, uterine tone, swollen vulva, vaginal mucous discharge and vaginal hyperaemia. Oestrus symptoms were more pronounced in treated group than control groups. The buffaloes in treated and control groups, the average number of days from parturation to first oestrus were 81±3.61 and 107±20 days respectively, that was significant (P <0.05) difference between two groups. In PGF2a and GnRH treated buffaloes exhibited oestrus during 62.5±0.5 days and 86.28±1.21 days postpartum respectively. In treated group, the interval to onset of oestrus after injection was 6.22±1.16 days. In control group days from beginning of experiment to onset of oestrus were 47±2 days. Duration of oestrus in treated group was 24±2.11 hours. In PGF2cz and GnRH treated animals the duration of oestrus was 25±3 hours and 24.28±2.67 hours respectively. In control group the duration of oestrus was 18±2 hours. The pregnancy rate in treated and control groups were 44.4% and non of control group conceived.
650			_aDepartment of Theriogenology _916124
700			_aDr.Muhamad _96351
700			_aDr.Muhammad Aleem _95489
710			_aFaculty of Veterinary Sciences _94292
942			_cTH
999			_c2410 _d2410