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J. Vet. Adv.,. 2014; 4(2): 358-363


Efficiency of Alfaprostol in Heat and Pregnancy Synchronization in African Dwarf Goat (Capra Hircus Hircus) Under Extensive Management

Augustave Kenfack, Ferdinand Ngoula, Junior Patrick Yombi-Malonga, Fernand Tendonkeng, Henry Fuelefac Defang, Ysabelle Leinyuy Nyuysemo, Richard Eba-Yoka, Dramane Togola, Etienne Pamo Tedonkeng.

Abstract
In order to study the efficacy of heat and pregnancy synchronization of alfaprostol (PGF2őĪ analogue) in African Dwarf goat (Capra hircus hircus), thirty two animals (4 bucks and 28 does) were used. Two doses of 2mg of alfaprostol were injected intramuscularly to each animal at 11 days interval. Behavioural and morphological changes associated with heat were registered, but only females that accepted mounting by the male were considered in ústrus. At the end of the synchronization protocol, 67.86% of the does were observed in ústrus. However, the appearance of heats was extended over 13 days, with 78.95% occurring between the first and seventh days following the end of the synchronization protocol. 42.10% of serviced goats returned to heat within the 21st days following the acceptance of the male and only 45.45% of the remaining females maintained the pregnancy to term. The heats induced in African Dwarf goat by alfaprostol were not synchronous enough; this synchronization technique would not be very suitable for systematic artificial insemination in African Dwarf goat. Insemination on observed ústrus would yield better results of fertility.

Key words: Alfaprostol, ústrus synchronization, pregnancy synchronization, African Dwarf goat.



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