Total plasma cholesterol profile in superovulated crossbred cattle

Abstract

Crossbred cows (n = 24) were divided in to 4 groups. The animal of each group were treated on day
7 (day O= day of estrous) with different hormonal preparation viz 500 I.U. hCG (Group 1), 5 mg
Es/radio/ valerate (Group II), IO ig GnRH (Group III) l}nd 1 ml NSS (Group IV). Animal in each
group were superovulated on day 10 of estrous cycle with FSH-P. The superovulatory response was
determined by counting corpora lutea present on both the ovaries. Total cholesterol level increased
significantly (P<0.05) on the day of superovulatory estrus in group I, II and IV and non-significantly
(P>0.05) in group III. Positive (P < 0.0 I) correlation existed between ovulation rate and total cholesterol
on day 4. This correlation was also significant (P<0.05) on day 4 to 7 of estrous cycle, day of initiation
of gonadotropin treatment, day of PGF2a injection, at superovulatory estrus and on day 7 post
superovulatory estrus.