2024-03-28T20:13:39Zhttp://buleria.unileon.es/oai/requestoai:buleria.unileon.es:10612/107342020-12-10T09:05:43Zcom_10612_17col_10612_20
Facultad de Ciencias Biologicas y Ambientales
Álvarez García, Mercedes
Martínez Pastor, Felipe
Paz Cabello, Paulino de
Gomes Alves, Susana Cláudia
López Urueña, Elena
Pérez, J. J.
Aparicio, Nicomedes
Nicolás, M.
Mata Campuzano, María
Anel Rodríguez, Luis
Biologia Celular
2009
2019-05-12T23:52:37Z
2019-05-12T23:52:37Z
2019-05-13
XXXIX Jornadas de Estudio. XIII Jornadas sobre Producción Animal. T. II
978-84-613-2311-1
http://hdl.handle.net/10612/10734
Z-1919-2009
P. 675-677
The Assaf breed has mostly been allocated in Castilla y León, particularly in
the province of León. In 1998, a selection and genetic improvement programme was initiated
for milk production in 38 flocks. Training of rams for semen collection using an artificial
vagina reached a success rate of 74%, and the percentage of valid ejaculates has reached
90%. Fertility results of artificial insemination (lambing rates) have fluctuated between 35% y
40% since the programme was started. We found that fertility drops in ewes older than 4
years, and that it improved about 10% in the breeding season.
spa
Asociación Interprofesional para el Desarrollo Agrario
Veterinaria
Sheep
Cervical insemination
Semen
Ram
León (Provincia)
Evolución de un programa de inseminación en la raza Assaf en la provincia de León
info:eu-repo/semantics/bookPart
info:eu-repo/semantics/openAccess