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

Authors

  • M N SUNDARARAMAN Frozen Semen Bank, Department of Animal Genetics and Breeding,Madras Veterinary College, Tamil Nadu Veterinary and Animal Sciences University, Chennai - 600 007, India.
  • A GOPINATHAN
  • A SUBRAMANIAN

Keywords:

Jersey bull, Dag-like sperm defect, Acrosorne defects, Genetic sperm defects

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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Published

2023-01-09

Issue

Vol. 35 No. 2 (2014): Indian Journal of Animal Reproduction

Section

Research Article

How to Cite

SUNDARARAMAN, M.N., GOPINATHAN, A., & SUBRAMANIAN, A. (2023). DAG-LIKE SPERM DEFECT AND ACROSOME ABNORMALITIES INDICATING HEREDITARY SPERM DEFECTS IN A JERSEY BULL. The Indian Journal of Animal Reproduction, 35(2), 27–30. Retrieved from https://acspublisher.com/journals/index.php/ijar/article/view/4050