Abstract
Currently, for agricultural enterprises of all ownership forms in the Republic of Kazakhstan, issues related to improving breeds, crosses, and lines of waterfowl remain important. Additionally, technologies for housing and feeding that enhance the survival and productivity of poultry are of great significance. The use of the genetic resources of domestic poultry breeds in breeding work, as well as the preservation of rare and endangered populations, holds special importance due to their high adaptive qualities in terms of both the quality and quantity of the obtained products, and their suitability for local feed and eco-climatic conditions. As a result of conducted research, an assessment of the quality of paternal and maternal lines of crosses from local duck populations in the Northern region of Kazakhstan has been performed, and indicators of growth, development, and survival of the obtained hybrid offspring have been studied. The conducted research has established that the "Ansar" crossbred ducklings exhibit higher growth energy along with a 94% survival rate of the offspring in early age.