Utilize este identificador para referenciar este registo: http://hdl.handle.net/10198/10056
Título: Anticipación de la actividad reproductiva en ovejas de raza Churra Galega Bragançana - efecto de las gonadotopinas coriónicas
Autor: Valentim, Ramiro
Azevedo, Jorge
Maurício, Raimundo
Correia, Teresa Montenegro
Palavras-chave: Sazonalidade
Ovelhas
Raça Churra Galega Bragançana
Gonadotropinas coriónicas
Data: 2013
Editora: Asociación Interprofesional para el Desarrollo Agrario
Citação: Valentim, Ramiro; Azevedo, Jorge; Maurício, Raimundo; Correia, Teresa (2013) - Anticipación de la actividad reproductiva en ovejas de raza Churra Galega Bragançana - efecto de las gonadotopinas coriónicas. In XV Jornadas sobre Producción Animal. Zaragoza. p. 356-358. ISBN 978-84-695-7684-7
Resumo: This work aimed to assess if a pre-treatment with melatonin may improve the efficiency of a short-term progestagen treatment in advancing the breeding season in Churra Galega Bragançana ewes. The effects of eCG and hCG were also assessed. ln March, 65 adult ewes were randomly divided in two groups: 28 received a subcutaneous implant of melatonin (18 mg) as the others 37 got no treatment (Control). Forty-live days afterward all ewes were treated with an injection of 1 00 micrograms of PGF2alfa analogous and a vaginal sponge with 20 mg of FGA. Sponges were removed 5 days later. At this time, 21 Control and all Melatonin ewes were injected with 500 lU of eCG. The remaining 16 Control ewes received an injection of 500 lU of hCG. Short-term progestagen treatment was valuable in advancing the breeding activity. Exogenous melatanin did not improve the efficiency of this treatment. eCG and hCG had identical effects on fertility. Fertility rate was generally fair.
Peer review: yes
URI: http://hdl.handle.net/10198/10056
ISBN: 978-84-695-7684-7
Aparece nas colecções:CIMO - Artigos em Proceedings Não Indexados à WoS/Scopus

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