National Academy of Agricultural Sciences (NAAS)
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PRINT ISSN : 2319-7692 Online ISSN : 2319-7706 Issues : 12 per year Publisher : Excellent Publishers Email : editorijcmas@gmail.com / submit@ijcmas.com Editor-in-chief: Dr.M.Prakash Index Copernicus ICV 2018: 95.39 NAAS RATING 2020: 5.38 |
A rapid postpartum uterine involution process followed by the early onset of cyclic ovarian activity is importance for achieving a continuous intensive reproduction in cows. Normally calved 36 pluriparous HF crossbred cows were divided into 4 experimental groups viz., groups I, II, III and IV (control) and on day 2 PP, cows treated with an intramuscular injection of 25 mg PGF2α, 50 IU oxytocin, 5 mg methylergometrine maleate and 5 ml normal saline, respectively. All the all experimental groups were inserted with Controlled Internal Drug Release device on day 45-55 postpartum intra-vaginally and left in situ for 9 days along with an intramuscular injection of 25 mg of PGF2α 24 hours before the withdrawal of CIDR. At 48 and 72 hours of CIDR withdrawal, timed artificial insemination (TAI) using frozen thawed semen was performed to all the cows. There was a reduction in percentages of PMN and increase in lymphocytes in groups I, II and III from day 2 to day 30 postpartum. These changes were predominant in group I followed by group III and group II cows than control group. It concluded that uterine ecbolic drugs promote early uterine involution therefore decrease uterine infection and increased conception rate postpartum cows.
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