Injectable progesterone for estrus and ovulation induction in seasonal anestrous ewes

D'Avila, Camila Amaral; Moraes, Fabiane Pereira de; Bohn, Andrez Pastorello; Rovani, Monique Tomazele; Vieira, Arnaldo Diniz; Ferreira, Rogério; Sales, J. N. S.; Baldassarre, Hernán; Mondadori, Rafael Gianella; Gonçalves, Paulo Bayard Dias; Gasperin, Bernardo Garziera

doi:10.1016/j.livsci.2022.105070

Cited by 1 publication

(1 citation statement)

References 14 publications

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“…Progestogens are usually administered using intravaginal devices, including silicone-based devices impregnated with progesterone (P4), such as Controlled Internal Drug Release (CIDR) and Dispositivo Intravaginal Caprino Ovino (DICO) ( Wheaton et al, 1993 ; Vilariño et al, 2010 ), or, intravaginal sponges (IVS) impregnated with progesterone analogues, as medroxyprogesterone acetate (MAP) or flurogestone acetate (FGA) ( Barrett et al, 2008 ; Santos et al, 2010 ). There are some preliminary studies on the administration of long-acting injectable progesterone ( Rodríguez-Martínez et al, 2018 ; Alvarado-Espino et al, 2019 ; Amaral D’Avila et al, 2022 ; Payan et al, 2022 ), but the results are still inconsistent. Until now, sponges impregnated with MAP have been used for the resynchronization protocol ( Miranda et al, 2018 ; Cosentino et al, 2019 , 2021 , 2022 ), but to the best of our knowledge, there are no studies with other progestogens.…”

Section: General Aspectsmentioning

confidence: 99%

Recent advances in treatments for resynchronization of ovulation in small ruminants: a review

et al. 2023

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Hormonal methodologies to control small ruminants’ estrous cycle are worldwide used and evolved, adjusting the application to the precise female physiological moments to enhance reproductive performance. The estrous cycle can be induced and/or synchronized, aiming for fixed-time artificial insemination, or based on estrus behavior signs for insemination, natural or guided mating. Successive protocols can be performed to resynchronize ovulation and increase reproductive outcomes in females that failed to conceive. These recently developed treatments aim to resynchronize the ovulation as earlier as non-pregnancy is detected. The present review aimed to summarize the recent advances and main findings regarding resynchronization protocols used in small ruminants. Lastly, we present future perspectives and new paths to be studied in the subject. The resynchronization treatment is still a growing field in small ruminant reproduction, nevertheless, some enhancements are found in the reproductive outcome, showing that such protocols can be successfully used in sheep and goat production.

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