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Oestrus synchronization and reproductive performance under different protocols in anoestrus dairy goats

Akar Y.1, Yüksel M.2 and Ograk Y.Z.3

1Department of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, University of Erciyes, Kayseri, Turkey; 2Department of Obstetrics and Gynaecology, Faculty of Veterinary Medicine, University of Cumhuriyet, Sivas, Turkey; 3Department of Animal Breeding and Husbandry, Faculty of Veterinary Medicine, University of Cumhuriyet, Sivas, Turkey

 
Abstract

The aim of the study was to evaluate the effects of different progestagens on oestrus synchronization and the effects of vitamin mix (A, D3 and E) and GnRH singly or in combination on the fertility parameters in anoestrus dairy goats. The animals (n=186) were divided into three groups. One group was injected with 20 mg fluorogeston acetate, second received 60 mg medroxyprogesterone acetate and third was treated with 3 mg Norgestomet. The goats which showed oestrus with these applications were further mated naturally. For this purpose, the goats were divided into four subgroups. The control goats received 2 ml NaCl, second group was treated with vitamins (150,000 IU D3, 1,000,000 IU A and 100 mg E) immediately after mating, third group was treated with GnRH on the 12th day after mating and the fourth group received the combination of vitamins and GnRH. The oestrus rate and the interval to oestrus were found to be higher (P<0.05) in experimental goats treated with Norgestomet. There were no statistically significant differences between the subgroups in terms of the pregnancy rate, abortion rate, gestation length, twins rate and litter size (P>0.05). In conclusion, the short term applications of FGA, MAP and Norgestomet successfully induced oestrus in anoestrus dairy goats successfully. However, the vitamins and GnRH administrations post-mating did not improve the fertility parameters.

Keywords: Estrus; vitamin; GnRH; fertility; goat
 
To cite this article: Akar Y, M Yüksel and YZ Ograk, 2014. Oestrus synchronization and reproductive performance under different protocols in dairy goats. Res. Opin. Anim. Vet. Sci., 4(8): 432-436.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

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