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2015•The Indian Journal of Animal ReproductionRequires access

DAG-LIKE SPERM DEFECT AND ACROSOME ABNORMALITIES INDICATING HEREDITARY SPERM DEFECTS IN A JERSEY BULL

Madurantakam N. Sundararaman, A. Gopinathan, Arunachalam Subramanian

Open publisher page 4 citations

Abstract

A study was undertaken on the consistent occurrence of sperm abnormalities in a Jersey bull maintained in an organized frozen semen production station. Data on semen collections and a representative ejaculate from the bull in question were collected to evaluate the semen characteristics. From the records it was observed that 74.5% of the ejaculates were rejected as fresh semen for poor semen quality especially in sperm morphology. The representative semen sample also revealed low sperm concentration, poor sperm motility and sperm abnormalities up to 82.4%, of which 65.2% of the spermatozoa showed ‘Dag-like’ defect. Majority of the spermatozoa in the ejaculate also showed abnormal acrosome status (75.1%). Consistent occurrence of high proportion of ‘Dag-like’ sperm defect and acrosome abnormalities suggested a genetic cause.

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What this paper is about

A study was undertaken on the consistent occurrence of sperm abnormalities in a Jersey bull maintained in an organized frozen semen production station. Data on semen collections and a representative ejaculate from the bull in question were collected to evaluate the semen characteristics. From the records it was observed that 74.5% of the ejaculates were rejected as fresh semen for poor semen quality especially in sperm morphology. The representative semen sample also revealed low sperm concentration, poor sperm motility and sperm abnormalities up to 82.4%, of which 65.2% of the spermatozoa showed ‘Dag-like’ defect. Majority of the spermatozoa in the ejaculate also showed abnormal acrosome status (75.1%). Consistent occurrence of high proportion of ‘Dag-like’ sperm defect and acrosome abnormalities suggested a genetic cause.

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Available abstract

A study was undertaken on the consistent occurrence of sperm abnormalities in a Jersey bull maintained in an organized frozen semen production station. Data on semen collections and a representative ejaculate from the bull in question were collected to evaluate the semen characteristics. From the records it was observed that 74.5% of the ejaculates were rejected as fresh semen for poor semen quality especially in sperm morphology. The representative semen sample also revealed low sperm concentration, poor sperm motility and sperm abnormalities up to 82.4%, of which 65.2% of the spermatozoa showed ‘Dag-like’ defect. Majority of the spermatozoa in the ejaculate also showed abnormal acrosome status (75.1%). Consistent occurrence of high proportion of ‘Dag-like’ sperm defect and acrosome abnormalities suggested a genetic cause.

Key concepts: Sperm, Semen, Acrosome, Andrology, Semen quality, Biology, Sperm motility, Acrosome reaction

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DAG-LIKE SPERM DEFECT AND ACROSOME ABNORMALITIES INDICATING HEREDITARY SPERM DEFECTS IN A JERSEY BULL — Research Paper | ScholarLens