Enhancing lamb growth and meat quality: analysis of kazakh fat-tailed and crossbred in central Kazakhstan’s sharply continental climate
Melhorando o crescimento e a qualidade da carne ovina: uma análise de ovelhas cazaques de cauda gorda e mestiças no clima continental acentuado do Cazaquistão central
Doldasheva G. Shauyenov S. Yuldashbayev Y. Ibrayev D. Mukhametzharova I.
2024Instituto Internacional de Ecologia
Brazilian Journal of Biology
2024#84
The article presents the results of scientific research on the production of lamb in the conditions of the Akmola region. The experiment was conducted on purebred Kazakh short-tailed rough-haired and cross-bred sheep obtained from industrial crossing of Kazakh short-tailed rough-haired queens with sheep-producers of the hampshire breed. Further, the article presents the results of feeding and fattening, as well as the morphological composition of the carcass of sheep of the Kazakh coarse-haired sheep breed of different ages. The object of the study for feeding and fattening were three groups of experimental sheep of the above-mentioned breed, where compound feed was included in the diet of the I experimental group in the form of top dressing, in the II experimental group, grain waste was also used for top dressing, and the control group was kept in the feed without top dressing. Based on the study of the feeding of experimental sheep, it was found that the absolute increase during the feeding period in experimental sheep who received fertilization in the form of compound feed is higher than in their peers, respectively, by 0.2 and 1.49 kg. In terms of morphological and varietal composition, in particular, the number of cuts of grade 1, there was also an advantage of experimental sheep that received fertilization in the form of compound feed compared to their peers, respectively, by 2.3-8.3%. In general, the results of a study on the growth, development and slaughter qualities of experimental sheep, i.e. purebred Kazakh short-tailed rough-haired and crossbred, obtained from crossing with sheep producers of the precocious breed “hampshire” showed that from the moment of birth to 2 and 4 months. For example, crossbred sheep were slightly superior to purebred peers in terms of the studied indicators. In particular, the results of feeding sheep of the Kazakh coarse-haired broad-tailed breed from 4 to 6 months, depending on the top dressing.
average daily increase , compound feed , feeding , industrial crossing , lamb
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S. Seifullin Kazakh Agrotechnical Research University, Department of Technologies of Production and Processing of Livestock Products, Astana, Kazakhstan
Institute of Animal Science and Biology of the Russian State Agrarian University-Timiryazev Agricultural Academy, Moscow, Russian Federation
S. Seifullin Kazakh Agrotechnical Research University
Institute of Animal Science and Biology of the Russian State Agrarian University-Timiryazev Agricultural Academy
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