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Datos del Documento

Utilice este identificador para citar o enlazar este documento: https://ria.asturias.es/RIA/handle/123456789/2281


Título: Análisis demográfico y genético de la raza ovina mallorquina
Autores: Goyache, Félix
Fernández, Itziar
Espinosa, M.A.
Payeras, L.
Pérez-Pardal, L.
Gutiérrez, Juan P.
Royo Martín, Luis J.
Álvarez, Isabel
Palabras Claves: Genealogías
Contribución genética
Número efectivo
Estructura de la población
Fecha Edición: 2010
Editor: AIDA, Asociación Interprofesional para el Desarrollo Agrario
Cita Bibliográfica: Goyache, F...[et al.]. Análisis demográfico y genético de la raza ovina mallorquina. ITEA. 2010; 106 (1): p. 3-14
Resumen: Information from 6273 registered in the flockbook of the Mallorquina sheep breed was analysed. Up to 34.3% of the individuals had registered parents and 7.6% registered grand-fathers. Average generation interval was 3.7 years. The effective number of founder herds (11.1) was roughly a quarter of the real one. The effective number of herds supplying rams was 8.8 for fathers and 3.8 for grandfathers. The equivalent number of founders was 4122 which was 66% of the total analysed animals. The effective number of founders was 704 (17% of the equivalent number of founders). The effective number of ancestors for the Mallorquina population was 90, and 50 ancestors would explain 50% of the total genetic variability of the population. Average values for inbreeding, average relatedness and equivalent to discrete generations were 0.24%, 0.17% and 0.43, respectively. Only 121 inbred individuals were found with average values for the former parameters of 17.93%, 0.92% and 1.91. A few within-flock bottlenecks have been detected and, as a consequence, inbred individuals appeared. However, no risk for the genetic variability of the breed arose.
URI: https://ria.asturias.es/RIA/handle/123456789/2281
Aparece en las Colecciones:Agroalimentación y Ganadería
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