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Genetic Basis for Improving the Reproductive Qualities and Productivity of South-Kazakh Merinoes | ||
| Archives of Razi Institute | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 15 مهر 1400 اصل مقاله (241.13 K) | ||
| نوع مقاله: Original Articles | ||
| شناسه دیجیتال (DOI): 10.22092/ari.2021.356168.1795 | ||
| نویسندگان | ||
E. I Islamov  ؛ G. A Kulmanova؛ B. T Kulataev؛ A. I Zhumanova
| ||
| Kazakh National Agrarian University, Almaty, Kazakhstan | ||
| چکیده | ||
| Food shortages may be one of the most important negative consequences of overpopulation. To meet the nutritional needs of livestock origin, the number of animals available cannot be increased, but ways must be sought to increase production per livestock unit. Livestock breeding is the science and art of establishing genes that are effective in the economic production of livestock, which creates superior livestock and poultry. To achieve the purpose of this study, the quality of the main stock of animals, the characteristics of the initial population according to the main characteristics of breeding, biological and internal characteristics, biochemical parameters of sheep blood with different genotypes, and its economic efficiency have been studied. The animal subject in this study was South Caucasian sheep merino (group I) and mixed breed sheep (male of Australian merino x female of South Kazakhstan merino) (group II). Age-related changes in body weight of the resulting offspring were studied by weighing them at birth, at 4, 7, and 18 months of age. External body mass measurements were taken from these animals at the same time. Absolute, daily average and relative increases in their live weight were determined based on the weighting data and the blood parameters also considered. The results of this study recorded relatively high values of variability coefficients of blood acid capacity, globulin content, aldolase activity, alkalinity, and acid phosphatase. The levels of total protein, albumin, globulin, and haptoglobin of the second group were 7.42%, 27.64, 12.9, and 9.7%, respectively, which had a significant increase compared to the first group (P<0.05). The data of scientific research are reflected and proved in the paper, which can serve as a certain contribution to zootechnical science to use in practice the breeding-tribal work in conditions of different forms of ownership, as well as at improvement of breeding-tribal work and production technology of high quality, competitive and ecologically clean sheep production in conditions of maximum year-round seasonal use of foothill and foothill-steppe pastures in the south of Kazakhstan. | ||
| کلیدواژه‌ها | ||
| Correlation؛ Erythrocytes؛ Genotypic variability؛ Heredity؛ Inbreed leukocytes؛ Selection؛ Wool cutting | ||
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آمار تعداد مشاهده مقاله: 23 تعداد دریافت فایل اصل مقاله: 5 |
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