The use of human chorionic gonadotropin seven days after synchronized estrus for the increase of luteal tissue in Morada Nova ewes.

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Author(s): VERGANI, G. B.; TREVIZAN, J. T.; PEREIRA, V. S. do A.; FONSECA, J. F. da; GARCIA, A. R.; ESTEVES, S. N.; OLIVEIRA, M. E. F.

Summary: The study was performed to evaluate whether the use of hCG 7 days after synchronized oestrus in Morada Nova ewes would increase the number and size of corpora lutea. In conclusion, 300 IU of hCG injected 7 days after synchronized oestrus is effective to increase the number of corpora lutea and in the size of luteal tissue. Despite indications of a favourable effect on luteal dynamics, the effects on progesterone production and conception rate need to be examined.

Publication year: 2018

Types of publication: Abstract in annals or event proceedings

Unit: Embrapa Southeastern Livestock

Keywords: Ciclo Estral, Corpo Lúteo, Corpus luteum hormones, Estrous cycle, Estrus synchronization, Ewes, Ovelha, Ovino, Progesterona, Progesterone, Sheep

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