Differential surface glycoprofile of buffalo bull spermatozoa during mating and non-mating periods
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Bull spermatozoa in the female tract after natural mating
Bull spermatozoa found in the cow genital tract 18 hours postcoitum are observed in situ by both light and electronic microscopy after the uterotubal junction and its surrounding area are fixed. No phagocytosis is evident then, and many spermatozoa are seen in the folds of the uterotubal junction mucosa. None of the spermatozoa evidence ultrastructural integrity. Some show only periacrosomal pl...
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Sound production, Seasonal isolation, Overwintering, Aquatic insects The water boatmen Corixa dentipes and C. punctata produce an acoustic mounting signal when beginning to copulate. Automated recording o f this signal over the entire life cycle of the animals reveals that the main mating period of C. punctata occurs in autumn and that o f C. dentipes, in the spring. In the case o f C. punctata...
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ژورنال
عنوان ژورنال: Animal
سال: 2017
ISSN: 1751-7311
DOI: 10.1017/s1751731117000453