DAIRY PRODUCTIVITY AND MILK COMPOSITION OF MARES OF DIFFERENT GENOTYPES

Akimbekov, A.R. and Baimukanov, D.A. and Iskhan, K.Z. and Omarov, M.M. and Aubakirov, K.A. (2018) DAIRY PRODUCTIVITY AND MILK COMPOSITION OF MARES OF DIFFERENT GENOTYPES. REPORTS OF THE NATIONAL ACADEMY OF SCIENCES OF THE REPUBLIC OF KAZAKHSTAN, 2 (318). pp. 54-62. ISSN 2224-5227

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Abstract

In the article, the materials of studies of the milking capacity of mares of different genotypes and the milk composition under the conditions of a stationary koumiss farm are presented. For the first time, the results of studies on the variability and interrelationship of the main components of milk and milk yield of mares under stable and pasture conditions are summarized and given in a comparative aspect. There are pedigree differences in the quantity and quality of milk, Novoaltaisk-Kazakh cross-breeds have a highermilking capacity, followed by the Kazakh mares of the Jabe type and the Don-Kazakh crossbreeds. During the lactation period, 1482.2 liters of commercial milk yield from the Kazakh mares of the Jabe type, 1513.4 litersfrom the Novoaltaisk-Kazakh hybrids and 1267.6 liters from the Don-Kazakh hybrids were received. The highest fat content in milk was 1.79% in the Kazakh mares of Jabe type, in the Novoaltaisk-Kazakh hybrids it was 1.64% and in the Don-Kazakh hybrids - 1.52%. The protein content in milk of the Kazakh mares of Jabe type and the Novoaltaisk-Kazakh hybrids are practically the same 2.02 - 2.01%, and in the Don-Kazakh hybrids are only 1.87%. Variability of the fat content by lactation months is below the variability of milk yield and ranges from 5.06 to 7.88%. The correlation coefficient between milk yield and content of fat, protein, sugar had a negative value, and a positive relationship between the fat content and dry substance. Keywords:genotype, milking capacity, lactation, variability, fat, protein, sugar, correlation.

Item Type: Article
Subjects: Agriculture and forestry
Agriculture and forestry
Depositing User: Кайрат Жәлелұлы Исхан
Date Deposited: 25 May 2018 04:58
Last Modified: 25 May 2018 04:58
URI: http://repository.kaznau.kz/id/eprint/509

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