AI Article Synopsis
- A study on 35 East African shorthorned goats tested the effectiveness of using buck teasing combined with low doses of a prostaglandin analogue (cloprostenol) administered in a specific way to synchronize estrus.
- The goats were divided into seven groups, with varying doses of cloprostenol and some groups involving buck teasing; most goats in specific groups displayed estrus within 68 hours.
- Results indicated that the combination of low doses of cloprostenol and buck teasing significantly increased the number of goats exhibiting estrus, with maximum behavioral signs visible between 2 and 20 hours after onset.
Article Abstract
A study was conducted on 35 East African shorthorned female goats to determine if a combination of buck teasing and low doses of a prostaglandin (PGF(2) alpha) analogue, cloprostenol, given intravulvo-submucosally (i.v.s.m.) would be suitable for synchronization of estrus. Goats were allotted, with the onset of estrus, to seven groups (n = 5 goats per group). Five of the seven groups received varying doses of cloprostenol: Group 1 (125 microg cloprostenol i.m. per goat); Group 2 (62.5 microg cloprostenol i.v.s.m. per goat); Group 3 (62.5 microg cloprostenol i.v.s.m. per goat plus buck teasing); Group 4 (31.25 microg cloprostenol i.v.s.m. per goat); Group 5 (31.25 microg cloprostenol i.v.s.m. per goat plus buck teasing); Group 6 (buck teasing); Group 7, (2 ml physiological saline i.v.s.m. per goat, control group). Plasma progesterone concentration was measured on day of treatment and for 6 d thereafter. All goats in groups 1, 2, 3 and 5 exhibited estrus within 68 h. Thus, the number of goats receiving low doses of PG-cloprostenol intravulvo-submucosally observed in estrus increased (P < 0.05) with exposure to bucks. Exhibition of behavioral signs of estrus was maximal between 2 and 20 h after onset of signs of estrus. The exposure of females to males prior to intrauterine penetration was an advantage because copious mucus eased penetration.
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| http://dx.doi.org/10.1016/s0093-691x(88)80061-x | DOI Listing |
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