Vol. 11, Special Issue 7 (2022)

Author(s):
MK Meena, Savita Meena, M Meena and GN Purohit

Abstract:
The present study evaluated the incidence of ovarian cysts (OC) in cows (n=40) according to age, breed, and parity and also evaluated the effect of therapy of such cows using a combination of OvSynch (GnRH day-0, PG- day 7 and GnRH-day 9) plus progesterone injection (750 mg IM) and oral administration of potassium iodide 10 gm daily for 7 days on pregnancy rates of cows with OC inseminated with frozen semen at fixed time 20±4 hours after the second GnRH treatment. Holstein Friesian crossbred cows had the highest prevalence (87.5%) of OC, a high proportion of affected cows were 5-6 year of age (37.5%) and in their third parity (40%). Overall a high proportion of treated cows became pregnant (47.5%) with the treatment with 35% becoming pregnant in the first and 12.5% becoming pregnant in the second insemination (in the subsequent estrus) following treatment. It was concluded that HF crossbred cows are most affected with ovarian cysts in the age group of 5-6 years and 3rd parity. Ovsynch plus progesterone injection along with oral feeding of potassium iodide coupled with fixed time insemination results in good pregnancy rates.