The manual notes the role of science in improving the breeding and productive qualities of animals. Questions of origin and evolution of animals are considered , given concepts about the breed and the minimum requirements for the number of breeds , Classification of farm animals , the main factors of rock formation and rock formation process , Agricultural animal gene pool and its effective use , Creation of new breeds and types of animals and birds , Individual development and directional raising of animals , importance of selection and selection in breeding of new breeds and types of animals and birds , methods of animal breeding and modern problems of selection of agricultural animals , and its importance for the improvement of rocks, Planning of breeding work in animal husbandry . The publication contains materials on the study of the discipline "Theoretical bases of rock testing" and conducting independent work . Training manual "Theoretical bases of rock testing" is intended for students of the direction of training 36. 04. 02 Zootechnics of full-time education .