Khvostik V. Substantiation and practical realization of methodological approaches to the creation of new poultry populations and improvement of available ones

In the thesis work it has been presented the results of theoretical substantiation and practical realization of methodological approaches to raising a home dimorphic population of geese with clear sex differences of coloration of day-old youngster's down covering and adult birds' feathering. At the day-old age males have the overall light-grey coloration of down, females - overall grey one. At the adult age males are characterized by white feath-ering, females - white feathering with grey plumes on wings and some grey spots on the body. Dimorphic geese don't yield to initial breeds by the production traits and even excel them by some ones. By the genetic structure of ovoprotein loci geese of the dimorphic population displayed more similarity with mothers and Rhine geese that took part in their creation.