The chromosomal alterations in autochthonous animal breed and its effects

SEBASTIÁN DEMYDA PEYRÁS; MIGUEL MORENO MILLÁN

Bucarest

Congreso; 9th Scientific Symposium Prospects in Agriculture and Rural Area Development Bucharest; 2009

University of Veterinary Sciences of Bucharest

The bovine production in Andalusia has the small and medium exploitations, using autochthonous breeds in a special protection regime, as an important component. These breeds allow the animal production in places in those other breeds, maybe more productive, could not be used due to its wildness and adaptation to the environment. These autochthonous breeds are characterized by a limited number of animals and high consanguinity. Also due to the limited number of effectives a high rates of chromosomal alterations exist, like the 1;29 robertsonian translocation. This alteration is present also in animals of diverse latitudes. The 1;29 translocation causes lost in the fertility of the females, estimated around 12% and increases of intervals among childbirths in the females in 51 days (Moreno Millan, 2004), and a production of calves in relation to those taken place by the non-carrier females estimated in 0,89. The objective of this work is to analyze the economic effect of this translocation in the Andalusian cattle production.