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Reprod Domest Anim. 2009 Feb;44(1):83-7. doi: 10.1111/j.1439-0531.2007.01001.x. Epub 2008 Jun 19.

Use of Luprostiol and Cloprostenol for induction of parturition in pregnant goats.

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  • 1Reproduction and Obstetrics, Veterinary Faculty, University of Las Palmas de Gran Canaria, Spain. mbatista@dpat.ulpgc.es

Abstract

Pregnant goats were induced to parturition on day 145 of pregnancy, with three different protocols: group Cl (n = 19) was injected intramuscularly (IM) with 75 microg of the prostaglandin analogue R-Cloprostenol; group L (n = 20) was treated IM with 7.5 mg of the prostaglandin analogue Luprostiol; group L(50) (n = 18) was injected IM with 3.75 mg of Luprostiol (IM); in addition, Group S (Control, n = 15) was injected IM with 1 ml of saline solution. Thereafter, goats were continuously observed to record the following parameters: parturition, dystocia incidence, placental delivery and kid and maternal survival. Moreover, blood sampling was performed around kidding and plasma progesterone concentrations were analyzed. The interval from injection to parturition (mean +/- SEM) was not significantly different among the experimental groups: 35.1 +/- 1.5 h, 33.3 +/- 0.9 h and 34.1 +/- 1.8 h (groups Cl, L and L(50), respectively). In the control group, time to parturition was 99.4 +/- 12.1 h (range: 34-166 h). All the goats expelled the foetal membranes within the first 2 h after the induction. The incidence of dystocia due to foetal posture was not significantly different between induced and control goats (21.1%, 20.0%, 22.0% and 20%, for groups Cl, L, L(50) and S, respectively). The percentage of live kids was practically similar between induced goats (93.9%, 94.9% and 92.1%, for groups Cl, L and L(50), respectively); in addition, there was a case of maternal mortality in control group (6.7%; 1/15), whereas there was no mortality in induced goats (0%; 0/57). Plasma concentrations of progesterone showed an intense drop (<2 ng/ml) at 24 h after induction. This study confirms the effectiveness of the luprostiol to induce the parturition in goats, within a narrow range (30-40 h) in most of the induced females (80.0%, 7.5 mg; 77.8%, 3.75 mg).

PMID:
18564313
[PubMed - indexed for MEDLINE]
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