ULTRASONOGRAPHIC STUDIES OF OVARIAN ACTIVITY IN POSTPARTUM ANESTROUS SAHIWAL COWS
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Date
2016
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Chhattisgarh Kamdhenu Vishwavidyalaya, Durg
Abstract
Present investigation was carried out to study the “Ultrasonographic
studies of ovarian activity in postpartum anestrous Sahiwal cows”. A total of 14
anestrous Sahiwal cows with normal parturition of more than 65 days after
parturition were selected for present study from Bull Mother Experimental Farm
(B.M.E.F.), College of Veterinary Sci. & A.H., Anjora, Durg. These animals were
randomly divided into two groups. Animals (n=7) control group were given 2.0
ml normal saline intramuscularly and animals (n=7) treatment group were given
injection GnRH @ 10 μgm intramuscularly on day 0. The animals in both groups
were monitored at three days interval for 24 days, i.e. day 0, 3, 6, 9, 12, 15, 18, 21
and 24 days using transrectal ultrasonography (5-7.5 MHz) for development of
ovarian follicles.
The blood samples were collected from all experimental animals on days
0, 11 and 22 to estimate concentrations of serum progesterone, serum macroelements
calcium, phosphorus, magnesium and serum trace elements iron, copper,
cobalt and zinc. The levels of macro elements and trace elements were compared
among cyclic and acyclic animals of treatment and control groups.
Significantly higher number of animals came in estrus (57.14% Vs.
28.57% (P < 0.05) in treatment than control group. significantly larger follicle
were observed on day 3, 12 (P < 0.05) and 24 (P < 0.01) in treatment group than
control group. The serum progesterone level was higher on day 0, 11 and 22 in
treatment group. However the difference was statistically non-significant.
The serum copper concentration was significantly (P < 0.05) higher in
cyclic group. However there was non-significant difference in serum macro
elements, calcium, phosphorus, magnesium and serum trace elements, iron, cobalt
and zinc concentration in cyclic group and acyclic group of animals.
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