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An Overview of Bovine Cystic Ovarian Disease

An Overview of Bovine Cystic Ovarian Disease

Abdullah Channo1*, Asmatullah Kaka1, Qudratullah Kalwar2, Imdadullah Jamali3, Ghulam Jelani2, Muhammad Bakhsh4, Ghulam Nabi Dahri5 and Jai Parkash Goil6

­1Department of Animal Reproduction, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, 70060 
2Shaheed Benazir Bhutto University of Veterinary and Animal Sciences, Sakrand, 67210
3Department of Veterinary Pathology, Faculty of Animal Husbandry and Veterinary Sciences, Sindh Agriculture University, Tandojam, 70060 
4Faculty of Veterinary Sciences, College of Veterinary and Animal Sciences, Jhang, 35200, UVAS Lahore, Pakistan
5Directorate of Animal Husbandry, Livestock and Fisheries Department, Hyderabad, Government of Sindh. 
6Department of Animal Breeding, Livestock and Fisheries Department, Hyderabad, Government of Sindh
 
* Corresponding author: studentchanna@gmail.com

ABSTRACT

Dairy animals are facing so many reproductive disorders and cystic ovarian disease (COD) is one of the important disease which cause major economic losses to farmers. COD affects fertility of animal which is important to reproduce young ones, that occurs due to negative impact factors on hypothalamus-pituitary stalkand normal function of the ovarywhich leads to alteration in follicular development, ovulation, reduced reproductive performance, unsuccessful ovulation, increased interval between parturition and conception, low conception rate, decrease in calving rate, increase in number of inseminations at each conception and finally culling. The incidence of COD is ranges from 5-30%, due to the improper managemental system, and the prevalence of COD is 10-13% which is associated with selection, heredity, age, environment, improper nutrition, herd size, housing, high milk production, body condition score, lactation period, seasons, retained placenta, stress, metabolic disorders and hormonal imbalance. COD is generally at highest from 30 to 60 days of postpartum. The exact pathogenesis of COD is still not confirmed, but the abnormal neuroendocrine reflex of hypothalamic pituitary dysfunction, molecular alteration in growing follicle are important components. COD has been diagnosed by animal behavioral changes, nymphomania, anestrus, repeat breeding, pelvic ligament relaxation, tails head elevation, determination of progesterone level in plasma and milk by using kits of progesterone assay, and to confirm the diagnosis of COD, mostly trans rectal palpation and trans rectal ultrasonography methods have been used. COD should be treated by using different treatment protocols such as hormonal, medicinal and homeopathic medicines.

 

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Pakistan Journal of Zoology

October

Vol. 54, Iss. 5, Pages 2003-2500

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