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Ovulation Induction And Synchronization In Nili-Ravi Buffaloes With Prolonged Post-Partum Period

By: Mohammad Atif ikram | Prof. Dr. Muhammad Aleem Bhatti.
Contributor(s): Prof. Dr. Rashid Ahmad Chaudhry | Faculty of Veterinary Sciences.
Material type: materialTypeLabelBookPublisher: 2002Subject(s): Department of TheriogenologyDDC classification: 0783,T Dissertation note: Estrus detection and correct tine insemination have been considered one of the important factors affecting the calving interval in 1)11 flab population. This study was undertaken to induce and synchronize ovu1a(on rather than esirtis in buffaloes. Ovsynch program ( ovulation synclronization) enables all fertile buffaloes to be bred at a fixed time by A.l. Sixteen buffaloes of Nili-Ravi breed with a mean postpartum interval of 250±31.6 days were randomly divided into 2 equal groups viz A and B (ii=8). On day zero, Dalmeraline (25mcg/ml lecirilin; a GnRH analogue) was administered intramuscularly at the dose rate of 3cc. On day 7, 2cc Dalmazine (0.075mg/mi Cloprostenol) was injected intramuscularly. One day 9, second injection of Daimeraline (Lecirilin) was given intramuscularly at the dose rate of 3cc. Insemination was carried out 1 6 hours after second injection of GnRH analogue, Dalmeraline. Buffaloes of group B were kept as control group. They were observed for naturally occurring estrus from day 0 to 26. Estrus was detected with the help of teaser bull. Artificial insemination was carried Out primarily on standing heat basis. Buffaloes of group A responded to hormonal therapy and five out of 8 animals (62.5%) showed estrus behaviour and signs. All animals of group A were inseminated twice, once early in the morning and then in the evening with an interval of 12 hours. Three animals (37.5%) from group A were conceived at induced and synchronized ovulation at first service, while one animal (12.5%) was conceived from group B. It is concluded that the Ovsynch protocol is a useful regime in inducing and synchronizing ovulation with reasonably good conception rates. It is however, found that ovsynch protocol is also effective enough in buflaloes with longer postpartum intervals.
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Veterinary Science 0783,T (Browse shelf) Available 0783,T
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Estrus detection and correct tine insemination have been considered one of the important factors affecting the calving interval in 1)11 flab population. This study was undertaken to induce and synchronize ovu1a(on rather than esirtis in buffaloes. Ovsynch program ( ovulation synclronization) enables all fertile buffaloes to be bred at a fixed time by A.l.

Sixteen buffaloes of Nili-Ravi breed with a mean postpartum interval of 250±31.6 days were randomly divided into 2 equal groups viz A and B (ii=8). On day zero, Dalmeraline (25mcg/ml lecirilin; a GnRH analogue) was administered intramuscularly at the dose rate of 3cc. On day 7, 2cc Dalmazine (0.075mg/mi Cloprostenol) was injected intramuscularly. One day 9, second injection of Daimeraline (Lecirilin) was given intramuscularly at the dose rate of 3cc. Insemination was carried out 1 6 hours after second injection of GnRH analogue, Dalmeraline.

Buffaloes of group B were kept as control group. They were observed for naturally occurring estrus from day 0 to 26. Estrus was detected with the help of teaser bull. Artificial insemination was carried Out primarily on standing heat basis.

Buffaloes of group A responded to hormonal therapy and five out of 8 animals (62.5%) showed estrus behaviour and signs. All animals of group A were inseminated twice, once early in the morning and then in the evening with an interval of 12 hours.

Three animals (37.5%) from group A were conceived at induced and synchronized ovulation at first service, while one animal (12.5%) was conceived from group B.

It is concluded that the Ovsynch protocol is a useful regime in inducing and synchronizing ovulation with reasonably good conception rates. It is however, found that ovsynch protocol is also effective enough in buflaloes with longer postpartum intervals.

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