Studies on Prevalence and Pathology of Reproductive Tract Affections in Bovine
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Date
2006
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GADVASU, Ludhiana
Abstract
A project entitled â Studies on Prevalence and Pathology of Reproductive Tract Affections in Bovineâ ? has been carried out on the bovine received at post-mortem hall of Department of Veterinary Pathology, PAU, Ludhiana and from a slaughter house situated at Saharanpur (Uttar Pradesh) during November 2004 to March 2006. Out of 185 cases of bovines, 130 cases (80 cases of buffalo and 50 cases of cow) revealed reproductive disorders and were subjected to detailed post-mortem examination. The overall occurrence of female reproductive disorders was found to be highest (56.15%) in bovine of 8-12 years of age during autumn season. The prevalence of cystic ovarian disease was (24.00% in cow, 16.25% in buffalo, 19.22% in bovine) and endometritis (26.00% in cow, 26.25% in buffalo 26.15% in bovine). The cystic ovarian disease and chronic non-supparative endometritis were the most frequently observed anomalies amongst the reproductive disorders observed. Cystic ovarian disease involved various types of cysts viz. follicular cyst (cow 12.00%, buffalo 10.00%, bovine 10.77%), luteal cyst (cow 6.00%, buffalo 5.00%, bovine 5.38%), parovarian cyst (cow 4.00%, buffalo 1.25%, bovine 2.31%) and seromucinous cyst (cow 2.00%, bovine 0.77%). Macroscopically, the cyst(s) contained clear and colourless fluid. Follicular cyst had 2 to 3 layers of thick membrane granulosa along with extensive degenerative changes. Luteal cyst had thick middle luteinised theca interna cells. However, parovarian cysts consisted of thin wall of connective tissue and muscle fibres, lined by low columnar epithelium with clear cytoplasm and basement membrane. In case of endometritis, grossly uterine horns were completely tough and tumefied. Microscopically, chronic non-supparative endometritis was characterized by mild to moderate infiltration of 5 lymphomononuclear cells at focal or diffuse areas in the sub epithelial layers along with marked fibroplasia. Various other affections viz. chronic oophoritis, ovarian hypoplasia, salpingitis, adenomyosis, tuberculus endometritis, endometrial polyp, cervicitis and vaginitis along with tumours of ovary, uterus, cervix and vagina were also observed. The microbiological studies revealed that Escherichia coli was the most common isolated bacteria from the reproductive disorders in bovine. Drug sensitivity test revealed that gentamicin was the drug of choice against all bacteria isolated.