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Anticipación de la estación reproductiva en cabras Serranas
Correia, Teresa Montenegro; Cortez, Fátima; Azevedo, Jorge; Valentim, RamiroThe main aim al this paper was to study the advance of the breeding season in Portuguese Serrana goats using a short-term progestagen treatment (PGF2alpha + FGA) and eCG associated or not to a previous melatonin treatment. In March, 35 adult Serrana goats were randomly divided in two groups: about half the goats received a subcutaneous implant of melatonin (18 mg) as the others got no treatment. Fifty days afte...
Efecto del tipo de cubrición y del método de control de la actividad reproducti...
Valentim, Ramiro; Cortez, Fátima; Azevedo, Jorge; Maurício, Raimundo; Correia, Teresa MontenegroThe main aim of this paper was to study the effects of different breeding - natural mounting vs. artificial insemination - and hormonal control protocols - melatonin + FGA + eCG vs. FGA + eCG - on the reproduction activity of Portuguese Serrana goats in the anestrous season. ln March, 60 adult Serrana goats were randomly divided in two groups: half the goats received a subcutaneous implant of melatonin (18 mg) ...
Advance of the breeding season and artificial insemination with frozen semen in...
Valentim, Ramiro; Cortez, Fátima; Azevedo, Jorge Manuel Teixeira de; Pereira, Francisco; Mendonça, Àlvaro; Quintas, Hélder; Maurício, RaimundoThis study aimed to compare the efficiency of melatonin and/or a short-term FGA treatment in the advance of the breeding season in Serrana goats. Fertility after artificial insemination (AI) with frozen semen was also assessed. Material and Methods This experiment took place at Bragança (latitude 41° 49' N, longitude 6° 40' W and altitude 720 meters) and involved 65 adult Serrana goats. At early March, 32 goats...
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