Seasonal changes in reproductive activity, sperm variables and sperm freezability in Blanca Andaluza bucks

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Seasonal changes in reproductive activity, sperm variables and sperm freezability in Blanca Andaluza bucks

Interest in the preservation of endangered breeds such as the Blanca Andaluza goat, has increased and some steps should be therefore taken to ensure it. The study was designed to determine the seasonal reproductive pattern of Blanca Andaluza bucks, and whether this affects the quality of their semen and its freezability over the year. Seven bucks were used and their body weight, testicular weig...

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The factors affecting the inter-individual differences in sperm freezability is a major line of research in spermatology. Poor sperm freezability is mainly characterised by a low sperm velocity, which in turn is associated with low fertility rates in most animal species. Studies concerning the implications of sperm morphometry on freezability are quite limited, and most of them are based on spe...

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It is estimated that the male factor contributes to half of the infertility in couples attending for assisted reproductive techniques (ART). Therefore the semen analysis remains the starting point to evaluate main causes of infertility and in case of oligospermic semen the assessment of sperm morphology may help to choose the best spermatozoon to use for the intracytoplasmic sperm injection (IC...

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ژورنال

عنوان ژورنال: Spanish Journal of Agricultural Research

سال: 2015

ISSN: 2171-9292,1695-971X

DOI: 10.5424/sjar/2015134-8168