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Increasing the Reliability of Animal Genotyping in Betterment of Wool Productivity in South-Kazakh Merino Sheep in Kazakhstan | ||
| Archives of Razi Institute | ||
| مقالات آماده انتشار، پذیرفته شده، انتشار آنلاین از تاریخ 23 مهر 1400 اصل مقاله (565.95 K) | ||
| نوع مقاله: Original Articles | ||
| شناسه دیجیتال (DOI): 10.22092/ari.2021.356235.1809 | ||
| نویسندگان | ||
| E. I Islamov؛ G. A Kulmanova؛ B. T Kulataev؛ D. N Bekbaeva؛ A. S Zhumanova | ||
| Kazakh National Agrarian University, Almaty, Kazakhstan | ||
| چکیده | ||
| Increasing production and productivity in animals is possible by improving the environment and genetic structure of the herd. Selection is commonly used to change the genetic makeup of herds. The current study was aimed to investigate the efficiency of using genetic resources in the population of South-Kazakh merino sheep breed to improve and enhance the quality of wool productivity by determining a complex of phenotypic traits, morphobic and chemical parameters, and immunogenetic factors. Wool productivity was studied and accounted for by cutting wool in the original, individually for each animal during the period of shearing with an accuracy of 0.1 kg. At the age of 14 months, samples of wool were taken from 10 ewes of each group to study the yield of pure wool, physical and technological indicators. The value of reproducibility coefficients was determined by the correlation method. The amount of this trait for live weight and wool cutting was estimated from 0.439 to 0.871 and 0.331 to 0.776, respectively. The number of woolens per 1 mm2 of skin positively correlated with pure wool cutting (0.276±0.135), woolliness factor (0.293±0.134), and negatively correlated with a live weight of sheep (-0.055±0.140), staple length (-0.146±0.139), and toner wool (-0.180±0.138). This negative correlation gives the grounds to consider, that the most densely woolly sheep will not always have a breeding advantage at herd improvement on a complex of signs. However, the outstanding wool density as a separate indicator of sheep woolen productivity has a great breeding advantage, so in the merino population, it is necessary to create a small factory line of sheep with a very large wool density. Variety of sheep productivity indices in each age had the highest correlation with variety of maximum productivity level of animals bred in conditions of "Batay-Shu" LLP. | ||
| کلیدواژه‌ها | ||
| Coat coefficient؛ Fiber yield؛ Homeostatic system؛ Staple length؛ Wool | ||
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آمار تعداد مشاهده مقاله: 24 تعداد دریافت فایل اصل مقاله: 9 |
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