Factors of diversity of domestication-related behavior in pigs of specialized lines

The authors studied the domesticated behavior (associate feeding and emotional reactions of person dread) in connection with the inheritance factors, the environmental and the zootechnical specialization in the pigs of the Laconi and Chinese-European Tiameslan crossbreed lines, obtained in the France. The estimations of a repetition (53,7-55,5 %) and a inheritance (14,8-26,5 %) of such behavior in pigs were given. It was established that the adjustment behavioral structure of group/line subdivides into two subgroups, which have the different adaptive and selective value. The principles of microevolution in behavior and the rationality of application of original ethological population model were discussed for the purpose of development of genetic basis of the control of adaptive structure of breeds and also the methods of adaptive animals selection on the behavior determinants. The conclusion was made that transient polymorphism of domesticated behavior is new reserve of adaptive variability for selective improvement of adaptivity, well-being and productivity of pigs.