Effect of cidr on Oestrus Behaviour and Conception rate in Buffalo Heifers
KrishiKosh
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Title |
Effect of cidr on Oestrus Behaviour and Conception rate in Buffalo Heifers
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Creator |
Zarkar, S. M.
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Contributor |
Sahatpure, S. K.
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Subject |
Animal Reproduction and Gynecology
Effect of cidr on Oestrus Behaviour and Conception rate in Buffalo Heifers |
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Description |
The present study entitled “Effect of CIDR on oestrus behaviour and conception rate in buffalo heifers” was undertaken to induce the oestrus in buffalo heifers by inserting CIDR device intravaginally and observe its effect on oestrus and conception rate. Experimental animals include a total of 12 buffalo heifers which were divided into two groups. Group – A buffalo heifers (n = 6) were treated with CIDR implant (D – 0) and Inj. PGF2.α (D – 10) (PGF2α - 5ml of Lutalyse, 25 mg dinoprost) injected im on day 10th after CIDR removal. Group-B buffalo heifers (n = 6) were treated with CIDR implant with supplementation of Inj. GnRH – 5 ml (Gonadotropin Releasing Hormone 10 Hg of Buserelin acetate (GnRH; Receptal®) im at the time of device insertion and Inj. PGF2α on day 10th. CIDR implant devices were removed on day 10 and the buffalo heifers were observed for oestrus and oestrus behaviour. In Group-A, oestrus was induced in 5 (80 per cent) treated buffalo heifers with an average period for induction of oestrus to be 42.20 ± 4.96 hrs. after the end of treatment. The duration of oestrus was found to be 18.80 ± 3.01 hrs. Of the 5 buffalo heifers exhibited oestrus 2 (33.33 per cent) conceived. In Group-B, oestrus was induced in all 6 (100 per cent) treated buffalo heifers with an average period for induction of oestrus to be 41.67 ± 4.18 hrs. after the end of treatment. The duration of oestrus was found to be 22.67 ± 2.40 hrs. Of the 6 buffalo heifers exhibited oestrus 5 (83.33 per cent) became pregnant. Behavioural symptoms of oestrus including excitement, bellowing, frequent micturition, licking and sniffing external genitalia, congestion of vaginal mucus membrane, oestrus discharge and tumification of vulval lips were observed to be more pronounced in Group – B than in A treated buffalo heifers. It is concluded that gonadotrophin releasing hormone (GnRH) supplementation at the time of controlled internal drug release device (CIDR) implantation in vagina of buffalo heifers and subsequent supplementation of prostaglandin F2α at the time of removal of implant results in exhibition of pronounced symptoms of oestrus and higher pregnancy rate in buffalo heifers. |
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Date |
2017-01-04T15:35:00Z
2017-01-04T15:35:00Z 2011-09-15 |
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Type |
Thesis
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Identifier |
http://krishikosh.egranth.ac.in/handle/1/94526
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Language |
en
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Format |
application/pdf
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Publisher |
MAFSU
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