STUDIES ON THE CONTROL OF REPRODUCTIVE CYCLE IN GOAT

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dc.contributor.advisorDugwekar, Y. G.
dc.contributor.authorPARMAR, AJAYKUMAR P.
dc.date.accessioned2018-06-20T03:55:55Z
dc.date.available2018-06-20T03:55:55Z
dc.date.issued2005
dc.description.abstractThe present work was conducted with an objective of evolving suitable method for the control of reproductive cycle in goats of local breed of Gujarat. Treatment of does with Chronogest intra-vaginal sponges during non breeding season for a period of 18 days resulted in the exhibition of estrus in all the six treated goats with the onset of estrus within 32.38 ± 0.93 hours and duration of estrus was 48.00 ±1.15 hours. Out of six goats, two became pregnant, whereas in the control group none of the goats exhibited estrus. In the treatment group all the goats had high progesterone levels during luteal phase that reduced to less than 1.0 ng/ml during estrus followed by rise on day 10 post-breeding, which persisted till day 21 only in two goats that became pregnant. Serum estradiol-1713 levels showed significant rise (26.10 ± 1.30 pg/ml) at estrus only in animals that subsequently became pregnant where as in the rest of the animals estradiol-17β level remain around 12.50 ±8.11 pg/ml or lower throughout the experimental period. The levels of serum cholesterol and AKP did not alter significantly during the experimental period either in control or treated goats. Micro minerals, manganese, zinc and copper revealed non-significant difference between control and treatment groups. Iron levels in the treated animals on day of estrus (7.28 ± 0.96 ppm) were significantly high (P < 0.05) than on day 21 of the control group (3.85 ± 0.74 ppm). Similarly, the cobalt levels were found to be significantly higher (P < 0.05) in treated animals on. day 10 as compared to controls. Twelve goats were treated with Chronogest intra-vaginal sponges for 18 days followed by 500 IU PMSG in the day of sponge withdrawal. Six of these received 2.5 ml GnRH on the day of breeding and other six received 750 IU of hCG on the day of breeding. Six animals served as control. Two out of five GnRH treated animals and three out of six hCG treated animals became pregnant. Treatment of goats with chronogest intra-vaginal sponges during breeding season (June to October) for a period of 18 days resulted in the synchronization of estrus in all the six treated goats. Four out of six treated goats became pregnant. All the six goats in control groups exhibited estrus at different time during experimental period. Laboratory made sponges impregnated with 350 mg progesterone were administered intra-vaginally for 12 days in 8 goats during breeding season and 10 goats during non-breeding season. The sponges were left in situ for 12 days followed by administration of 500 IU PMSG on the day of sponges' withdrawal.All the 8 animals during the breeding season and 8 out of 10 animals during the non-breeding season exhibited estrus within 35.14 ± 3.32 hours during the breeding season and 63.00 ± 4.39 hours during non-breeding season The duration of estrus in these animals was found to be 39.00 ± 3.76 hours during breeding season and 33.00 ± 3.26 hours during non-breeding season.en_US
dc.identifier.urihttp://krishikosh.egranth.ac.in/handle/1/5810054456
dc.keywordsSTUDIES ON THE CONTROL, REPRODUCTIVE CYCLE IN GOATen_US
dc.language.isoenen_US
dc.publisherAAU, Ananden_US
dc.research.problemSTUDIES ON THE CONTROL OF REPRODUCTIVE CYCLE IN GOATen_US
dc.subReproductive Biologyen_US
dc.subjectREPRODUCTIVE BIOLOGYen_US
dc.subjectA STUDYen_US
dc.themeSTUDIES ON THE CONTROL OF REPRODUCTIVE CYCLE IN GOATen_US
dc.these.typePh.Den_US
dc.titleSTUDIES ON THE CONTROL OF REPRODUCTIVE CYCLE IN GOATen_US
dc.typeThesisen_US
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