This paper describes the case of a 2-year-old English Bulldog with severe teratozoospermia that consisted mainly of "Dag-like" defects, which is strong coiling of the tail. Although libido, semen volume and sperm concentration were normal, sperm motility was 5.0%, and 93.3% of spermatozoa exhibited morphological abnormalities affecting the tail. Transmission electron microscopic examination of the spermatozoa revealed strong folding, coiling and fracture of sperm midpieces and tails, axonemal defects and the presence of swollen and unevenly distributed mitochondria. Taking into account the dog's history and examinations and the constantly high percentage of abnormal spermatozoa over time, the defect was considered to be genetic in origin.

Severe tail defects in the spermatozoa ejaculated by an English bulldog / Rota, A; Manuali, E; Caire, S; Appino, Simonetta. - In: JOURNAL OF VETERINARY MEDICAL SCIENCE. - ISSN 0916-7250. - ;70(1):(2008).

Severe tail defects in the spermatozoa ejaculated by an English bulldog.

APPINO, Simonetta
2008-01-01

Abstract

This paper describes the case of a 2-year-old English Bulldog with severe teratozoospermia that consisted mainly of "Dag-like" defects, which is strong coiling of the tail. Although libido, semen volume and sperm concentration were normal, sperm motility was 5.0%, and 93.3% of spermatozoa exhibited morphological abnormalities affecting the tail. Transmission electron microscopic examination of the spermatozoa revealed strong folding, coiling and fracture of sperm midpieces and tails, axonemal defects and the presence of swollen and unevenly distributed mitochondria. Taking into account the dog's history and examinations and the constantly high percentage of abnormal spermatozoa over time, the defect was considered to be genetic in origin.
2008
Severe tail defects in the spermatozoa ejaculated by an English bulldog / Rota, A; Manuali, E; Caire, S; Appino, Simonetta. - In: JOURNAL OF VETERINARY MEDICAL SCIENCE. - ISSN 0916-7250. - ;70(1):(2008).
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11388/48826
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