2012
DOI: 10.1016/j.anireprosci.2012.01.011
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Hormonal control of reproduction in small ruminants

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Cited by 216 publications
(188 citation statements)
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“…This means that there is an increased luminous period during periods of spring and summer and a decrease in autumn and winter . Goats and some sheep breeds are considered short-day seasonally polyestrous breeders, because the females start their sexual activity (reproductive season) in response to the decreasing length of day, while an increasing length of day ceases the reproductive period (non-reproductive season) (Abecia et al, 2012). The average difference in the incidence of light of 2.48 h was enough to allow for seasonality in goats in the region studied.…”
Section: Resultsmentioning
confidence: 99%
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“…This means that there is an increased luminous period during periods of spring and summer and a decrease in autumn and winter . Goats and some sheep breeds are considered short-day seasonally polyestrous breeders, because the females start their sexual activity (reproductive season) in response to the decreasing length of day, while an increasing length of day ceases the reproductive period (non-reproductive season) (Abecia et al, 2012). The average difference in the incidence of light of 2.48 h was enough to allow for seasonality in goats in the region studied.…”
Section: Resultsmentioning
confidence: 99%
“…These animals from temperate climates have reproductive seasons during lower light intensity periods, i.e., during the end of summer, autumn, and winter (Abecia et al, 2012). In males, these reproductive changes are lower and do not contribute to an interruption in gametogenesis and sexual activity, as is the case in females (Pelletier and Almeida, 1987).…”
Section: Resultsmentioning
confidence: 99%
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“…De tal manera que, la eficacia del progestágeno puede ser determinada como la ausencia de estro durante el tratamiento y su aparición sincrónica después de retirarlo. Sin embargo, la administración de eCG, la cual presenta un importante efecto FSH (Abecia et al 2012), en dosis racionales aumenta la tasa de ovulación al inducir el reclutamiento folicular (Fernández-Abella et al 2003;Barret et al 2004) y disminuye el intervalo entre la remoción de MAP y la aparición del estro, comparado con el uso de progestágenos solamente (Barret et al 2004;Dogan & Nur 2006). La administración de una dosis luteolítica de PGF 2α al final o 24-48 horas antes de retirar el dispositivo intravaginal ha resultado en un aumento de la tasa de fertilidad (Martemucci & D´Alessandro 2011).…”
Section: Discussionunclassified
“…Esto permite que, a partir de las 48 horas, las hembras estén listas para ser sometidas a monta natural o a inseminación artificial (Espinoza et al 2003;Hernández-Olivos 2010;Abecia et al 2012), aunque en otros casos el inicio se ha reportado ligeramente más tardío, desde 2,6 días (Barret et al 2004) hasta 67 horas (Silva et al 2010). Asimismo, se ha reportado un inicio más rápido: Fukui et al (1987) La prolongación del estro, en la finca A, durante la primer fase, es atribuible al efecto de la eCG.…”
Section: Discussionunclassified