Resumption of cyclic ovarian activity in postpartum ewes: a review
The reproduction rate is considered a crucial factor that affects the ability of producers to meet the growing demand for ovines meat, and optimizing this factor will maximize the production rate and increase the efficiency of livestock. A reduction in the length of the postpartum anestrus period re...
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Universidade Estadual de Londrina
2016-04-01
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doaj-f0279b31bbb144ffaef310dab117bfc72020-11-25T01:49:16ZengUniversidade Estadual de LondrinaSemina: Ciências Agrárias1676-546X1679-03592016-04-013721101111610.5433/1679-0359.2016v37n2p110113741Resumption of cyclic ovarian activity in postpartum ewes: a reviewIvan Júnior Ascari0Nadja Gomes Alves1Ana Carolina Alves2Iraides Ferreira Furusho Garcia3Felipe Barbosa Junqueira4Universidade Federal de LavrasUniversidade Federal de LavrasUniversidade Federal de LavrasUniversidade Federal de LavrasUniversidade Federal de LavrasThe reproduction rate is considered a crucial factor that affects the ability of producers to meet the growing demand for ovines meat, and optimizing this factor will maximize the production rate and increase the efficiency of livestock. A reduction in the length of the postpartum anestrus period results in a shorter interval between lambing and conception and enables more lambs to be produced throughout the life of a ewe. This review discusses the current knowledge of several factors associated with the resumption of cyclic ovarian function in postpartum ewes and how the suckling management of ewes may affect this process. Factors that influence the resumption of cyclic ovarian activity include uterine involution, follicular development, occurrence of silent ovulation and short estrous cycles, breed, reproductive seasonality, nutrition and lactation. Controlled suckling and early weaning are management practices that may be used to obtain three lambings in a 24-month period. In the majority of the studies the interval between lambing and first estrus was reduced when a controlled suckling management strategy was used, therefore the controlled suckling appears to be the best alternative because it has produced good results and is easy to implement. Currently, however, this practice is still not widely used.http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/20956Controlled sucklingEarly weaningFollicular developmentNutrition. |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Ivan Júnior Ascari Nadja Gomes Alves Ana Carolina Alves Iraides Ferreira Furusho Garcia Felipe Barbosa Junqueira |
spellingShingle |
Ivan Júnior Ascari Nadja Gomes Alves Ana Carolina Alves Iraides Ferreira Furusho Garcia Felipe Barbosa Junqueira Resumption of cyclic ovarian activity in postpartum ewes: a review Semina: Ciências Agrárias Controlled suckling Early weaning Follicular development Nutrition. |
author_facet |
Ivan Júnior Ascari Nadja Gomes Alves Ana Carolina Alves Iraides Ferreira Furusho Garcia Felipe Barbosa Junqueira |
author_sort |
Ivan Júnior Ascari |
title |
Resumption of cyclic ovarian activity in postpartum ewes: a review |
title_short |
Resumption of cyclic ovarian activity in postpartum ewes: a review |
title_full |
Resumption of cyclic ovarian activity in postpartum ewes: a review |
title_fullStr |
Resumption of cyclic ovarian activity in postpartum ewes: a review |
title_full_unstemmed |
Resumption of cyclic ovarian activity in postpartum ewes: a review |
title_sort |
resumption of cyclic ovarian activity in postpartum ewes: a review |
publisher |
Universidade Estadual de Londrina |
series |
Semina: Ciências Agrárias |
issn |
1676-546X 1679-0359 |
publishDate |
2016-04-01 |
description |
The reproduction rate is considered a crucial factor that affects the ability of producers to meet the growing demand for ovines meat, and optimizing this factor will maximize the production rate and increase the efficiency of livestock. A reduction in the length of the postpartum anestrus period results in a shorter interval between lambing and conception and enables more lambs to be produced throughout the life of a ewe. This review discusses the current knowledge of several factors associated with the resumption of cyclic ovarian function in postpartum ewes and how the suckling management of ewes may affect this process. Factors that influence the resumption of cyclic ovarian activity include uterine involution, follicular development, occurrence of silent ovulation and short estrous cycles, breed, reproductive seasonality, nutrition and lactation. Controlled suckling and early weaning are management practices that may be used to obtain three lambings in a 24-month period. In the majority of the studies the interval between lambing and first estrus was reduced when a controlled suckling management strategy was used, therefore the controlled suckling appears to be the best alternative because it has produced good results and is easy to implement. Currently, however, this practice is still not widely used. |
topic |
Controlled suckling Early weaning Follicular development Nutrition. |
url |
http://www.uel.br/revistas/uel/index.php/semagrarias/article/view/20956 |
work_keys_str_mv |
AT ivanjuniorascari resumptionofcyclicovarianactivityinpostpartumewesareview AT nadjagomesalves resumptionofcyclicovarianactivityinpostpartumewesareview AT anacarolinaalves resumptionofcyclicovarianactivityinpostpartumewesareview AT iraidesferreirafurushogarcia resumptionofcyclicovarianactivityinpostpartumewesareview AT felipebarbosajunqueira resumptionofcyclicovarianactivityinpostpartumewesareview |
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