Ovarian cysts, an anovulatory condition in dairy cattle
نویسندگان
چکیده
منابع مشابه
Effect of Administration of an Opioid Antagonist (Naloxane) to Treat Ovarian Cysts in Dairy Cows
The role of stress in the pathogenesis of ovarian cysts is believed to be mediated by the discharge of endogenous cortisol, which inhibits LH release. Endogenous opioid peptides are involved in many responses to stress. Therefore, the aim of this study was to determine the effect of epidural administration of Naloxone (NX) on cystic regression and follicle development leading to normal oestrus ...
متن کاملHormonal responses of dairy cows with ovarian cysts to GnRH.
Twenty-four cows, diagnosed via rectal palpation as having ovarian cysts were randomly assigned to one of four groups to receive a single IM injection of either 0, 50, 100 or 250 /lg of synthetic gonadotropin-releasing hormone (GnRH). Sixteen lactating dairy cows exhibiting clinically normal estrous cycles were used as controls. Of the 18 cows receiving 50, 100 or 250/ag GnRH, 13 (72%) responde...
متن کاملClinical response of dairy cows with ovarian cysts to GnRH.
One-hundred-fourteen cows (30 Guernsey and 84 Holstein), diagnosed as having ovarian cysts via rectal palpation, were treated at randon with a single IM injection of either 50, 100 or 250 /lg synthetic gonadotropin-releasing-hormone (GnRH) or a sham injection of the carrier vehicle for GnRH (0 /~g). All animals were from one Guernsey and three Holstein herds maintained on a reproductive herd he...
متن کاملCystic Ovarian Disease and Thyroid Hormones in Dairy Cattle
Ovarian cysts reduce reproductive efficiency on almost every dairy farm in the World. Cystic ovarian disease in cows is usually seen in the first two months post calving. Ovarian cysts are characterized as structures greater than 2.5cm in diameter remaining on an ovary for more than 10 days. Cysts are simply filled with fluid enclosed by membranes like grapes. Since ovarian cysts reduce reprodu...
متن کاملBody Condition Scoring of Dairy Cattle: A Review
The body condition scoring (BCS) is a subjective estimate of the energy reserves in adipose tissues of a dairy cow. It is an acceptive, noninvasive, quick and inexpensive method to estimate degree of fatness. It is a means of accurately determining body condition of dairy cows, independent of body weight and frame size [1]. It is evinced that the profile of lactating cows in milch barn is diffe...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Veterinary Medical Science
سال: 2020
ISSN: 0916-7250,1347-7439
DOI: 10.1292/jvms.20-0381