Lambing and placental expulsion time after dexamethasone-induced parturition in Corriedale and Polwarth ewes

Rubianes, E.; Rodas, E.; Benech, A.; Carrau, A.; Ferreira, Annabel

doi:10.1016/0093-691x(91)90390-y

Cited by 4 publications

(2 citation statements)

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“…The variability in time from induction to the onset of labour has been attributed to a variety of factors. Rubianes et al (1991) reported that the genotypes of sheep used in their study (Polwarth and Corriedale) influenced the time difference from induction to parturition. Although the ewes of both breeds carried single lambs only, the interval from dexamethasone treatment to parturition was twice as long for the Polwarth than for the Corriedale breed (57.9 versus 28.8 h).…”

Section: Contents Lists Available At Sciencedirectmentioning

confidence: 97%

Analyses of parental and seasonal influences on the synchrony of dexamethasone-induced lambing and lamb characteristics

Sir

Bartlewski

2010

Livestock Science

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Section: Contents Lists Available At Sciencedirectmentioning

confidence: 97%

Analyses of parental and seasonal influences on the synchrony of dexamethasone-induced lambing and lamb characteristics

Sir

Bartlewski

2010

Livestock Science

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“…It is essential to mention that no female in this study had retained placenta, being considered as "retained placenta" the non-delivery of the organ eight hours after delivery (Jainudeen & Hafez 2004). Previous studies describe that in sheep, induction of labor with dexamethasone rarely promotes retention of the placenta (Rubianes et al 1991, Kastelic et al 1996, Ingoldby & Jackson 2001, Santana et al 2010.…”

Section: Mean Values ± Standard Deviation Of the Time Between Labor Imentioning

confidence: 98%

Effect of different doses of dexamethasone on labor in Santa Inês ewes and its influence on the onset of labor and the expulsion of fetal membranes

et al. 2020

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ABSTRACT: The induction of labor aims to concentrate births to follow up better the parturient and the first care to the neonates. However, even if the labor induction technique with dexamethasone administration has been successfully described since the late 1970s, few studies report the technique of birth development and neonatal vitality in Santa Inês sheep. This study aimed to evaluate the efficiency of dexamethasone use in two doses (8 and 16mg) in labor induction of Santa Inês ewes at 145 days of gestation and to evaluate its effects on the birth characteristics. In this study, 58 ewes were used, raised in an extensive system in the experimental farms of UFBA, with confirmation pregnancy after fixed-time artificial insemination or controlled breeding. These female ewes were separated into three groups according to the dose of dexamethasone administered (G1 = 0mg, G2 = 8mg, and G3 = 16mg). From these births, 79 lambs were born. This study analyzed the period from induction of labor to birth, fetal presentation at birth, the weight of the placenta, and the period for placenta expulsion. The data were analyzed by the Statistical Analysis System (SAS v.9.1.3®, 2002), and the significance level considered for all analyzes was 5%. Births of induced groups occurred on average at 48.4±22.17 hours after induction, while the females with non-induced labor gave birth 131.96±41.9 hours on average after the placebo application (P<0.05), confirming the efficiency of both doses for induction of labor. The period from induction to birth did not differ (P>0.05) between the doses used. There were no differences in delivery about the fetal static relation, time to placental attachment, and weight. With this study, it can be concluded that the induction at 145 days of gestation with eight or 16mg of dexamethasone is a useful technique and does not alter the labor in Santa Inês sheep.

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Parturition induction in ewes by a progesterone receptor blocker, aglepristone, and subsequent neonatal survival: Preliminary results

et al. 2017

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Lambing and placental expulsion time after dexamethasone-induced parturition in Corriedale and Polwarth ewes

Cited by 4 publications

References 4 publications

Analyses of parental and seasonal influences on the synchrony of dexamethasone-induced lambing and lamb characteristics

Analyses of parental and seasonal influences on the synchrony of dexamethasone-induced lambing and lamb characteristics

Effect of different doses of dexamethasone on labor in Santa Inês ewes and its influence on the onset of labor and the expulsion of fetal membranes

Parturition induction in ewes by a progesterone receptor blocker, aglepristone, and subsequent neonatal survival: Preliminary results

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