Сравнительное изучение молочной продуктивности и некоторых физиолого–биохимических показателей молока и крови коз разного генотипа

Аннотация

Subjects of research: goats djadari, wool, crossbreed, milk, serum and uniform elements of blood, celle immune system. Purpose of work: comparative study of dairy productivity and some physical and chemical properties of milk and blood of goats of different genotypes and grown up at through-year pasturing condition at piedmont zones of Uzbekistan. Methods of research: laboratory and research-and-production experiments, physiological and biochemical analyses, statistical processing. The results obtained and their novelty: It is established, that dairy productivity, chemical composition of fodder and some physical and chemical properties in goats of different genotypes and breed in the southern regions of Uzbekistan do not differ; the milk of djadari goats contained higher content of fat, casein and other substances in comparison with other genotypes groups. For the first time, the effect of genotypes and ecological factors on some physiological and biochemical parameters of blood and resistance of goats was studied. It is shown for the first time that the nutrients' requirements for goats are satisfied in a certain degree by the increase of pastures’ productivity. As a result, an increase in blood proteins, uniform elements and the resistance of the organism are observed. It is revealed for the first time, that goat milk is more thermostable and can be kept for a longer time in comparison with milk of other animals. Data on chemical composition and some physical and chemical properties of milk obtained from goats of different genotypes are new. Practical value: The presented results can be used in animal breeding, and in scientific and research projects on the study of the natural resistance of goats of different kinds of productivity. Degree of embed and economic effictivity: Results of work are applied in goat breeding plants; they are used in education and research. Field of application: physiology, biochemistry, agricultural and veterinary sciences.