Anticipación de la estación reproductiva en cabras serranas

• T. Correia ^[2] ; F. Cortez ^[1] ; J. Azevedo ; R. Valentim ^[1]
  1. [1] Instituto Politécnico de Bragança

     Instituto Politécnico de Bragança

     Bragança (Sé), Portugal

     
  2. [2] CIMO
• Localización: XV Jornadas sobre Producción Animal: 14 y 15 de mayo de 2013, Zaragoza / Jorge Hugo Calvo Lacosta (aut.), Isabel Casasús Pueyo (aut.), Margalida Joy Torrens (aut.), Javier Álvarez Rodríguez (aut.), Luis Varona Aguado (aut.), Begoña Panea Doblado (aut.), Carlos Calvete Margolles (aut.), Joaquín Balcells Teres (aut.), Vol. 1, 2013, ISBN 978-84-695-7684-7, págs. 347-349
• Idioma: español
• Títulos paralelos:
  • Advance of the breeding season in portuguese serrana goats
• Enlaces
  • Texto Completo Libro  1 (pdf)   2 (pdf) 
• Resumen

  • The main aim of this paper was to study the advance of breeding season in Portuguese Serrana goats using a short-term progestagen treatment (PGF2α + FGA) and eCG associated or not to a previous melatonin treatment. In March, 35 adult Serrana goats were randomly divided in two groups: about half the goats received a subcutaneous implant of melatonin (18 mg) as the others got no treatment. Fifty days afterward all goats were treated with an injection of 100 μg of PGF2α and a vaginal sponge with 20 mg of FGA. Five days later 300 IU of eCG were injected at sponge withdraw. Short-term progestagen and eCG treatment was effective in advancing the breeding season. Melatonin increased the percentage of Serrana goats showing estrus but had no significant effect on the percentage of goats presenting high plasmatic levels of progesterone after short-term progestagen and eCG treatment and on fertility.