Factores que influyen sobre la fertilidad en la inseminación cervical de la raza Castellana
- González Rodríguez, M.C. 1
- González Moreda, N. 1
- de la Fuente, L.f. 2
- 1 Asociación Española de Criadores de Ganado Ovino Selecto de Raza Castellana, ANCA
- 2 Facultad de Veterinaria. Universidad de León
- Fuente Crespo, Luis Fernando de la (coord.)
- Mariano Herrera García (coord.)
- Alfonso Abecia Martínez (coord.)
- María Jesús Alcalde Aldea (coord.)
- María Dolores Carro Travieso (coord.)
- Juan Francisco García Marín (coord.)
- Carlos Gonzalo Abascal (coord.)
- Valentín Pérez Pérez (coord.)
- Cristófol Peris Ribera (coord.)
- Luis Anel Rodríguez (coord.)
- Luis Rodríguez Ruiz (coord.)
Argitaletxea: Consejería de Agricultura y Ganadería ; Junta de Castilla y León
ISBN: 84-934535-8-7
Argitalpen urtea: 2006
Orrialdeak: 401-403
Biltzarra: Sociedad Española de Ovinotecnia y Caprinotecnia (SEOC). Jornadas (31. 2006. Zamora)
Mota: Biltzar ekarpena
Laburpena
Factors affecting fertility at parturition and prolificity were studied in a sampling of 2.316 cervical inseminations on 11 Castellana sheep farms during 2003-2005. Overall fertility was 39.54 %, and prolificity 1.56 offspring per parturition, with 42.84 multiple births. The factors most influencing fertility at parturition were, in order of importance, time of insemination, ewe age and the herd factor, involving the management of each farm. The factors most affecting prolificity were, the interval between parturition and artificial insemination and ewe age and the least important were the year of insemination, herd, month of insemination and ram.