Mejora del pie de cria cunícola en la Granja Experimental Villa Marina por selección artificial mediante tabulaciones con parámetros productivos y reproductivos.

Abstract

Artificial selection, according to Darwin2, is the evolutionary control in which man alters the genes of domestic or cultivated organisms. This process starts from the existence of human life. The man, has always tried to improve what is around him, especially, related to food. In the experimental farm Villa Marina, we found a heterogeneous lot of Oryctolagus Cuniculus. Genetic races or dominances are grouped into: Mariposa, Californian, New Zealand White; Red and Black. In the farm a diet and adaptation of facilities that affected the markers of measurement were tabulated, the females at the moment of implementing diets suffered in their corporal state, others assimilated them. The first ones presented problems, for this reason, they were excluded from the selection program. The results obtained were taken into account from the measurement, interval between deliveries (PI); age at first ride (PPP) and its weight (Pa); born kits (GN); mortality (Ma); live kits at weaning (GD); and the weights (P1; P2; P3; P4) weekly, these were used when evaluating the two lots of existing (E) and replacement (R), initial weight (PI) and weaning weight (PD). The values obtained are that in batch (R) and (E) are (IP): (R) 38.44 days +/- 0.05 and (E) 84 days +/- 0.05 with notable difference of 45.56 +/- 0.05 days; GN: (E) 9 +/- 0.05 born and (R) 7 +/- 0.05 born with difference of 2 +/- 0.05 live births; Ma (R) 14 +/- 0.05 and (E) 52 +/- 0.05 mortality percentage giving 38 +/- 0.05 difference positively affecting the (R); GD (R) 6 +/- 0.05 weaned; the markers (PI) and (PF) show a factor favorable to birth without changes in the weights that would be estimated (P1): (R) and (E) of 14 +/- gr favoring the group of (E); (P2): (R) and (E) 56 +/- gr favoring the group of (E); P4: (E) and (R) 3 +/- 0.5 grams of difference where (E) exceeds (R).