Nutritional and biological value of lamb meat of Buryat coarse wool and Tuvan short fat-tailed sheep breeds

The research objective was studying nutritional and biological value of meat of young growth of Buryat coarse wool and Tuvan short fat-tailed sheep breeds. The comparative analysis between these studied groups was carried out. Control slaughter of 3 heads at the age of 7 months was carried out by L.K. Ernst Institute of Animal Husbandry’s technique. By the results of the research the advantage of the ram of Buryat coarse breed in carcass mass (17.58 kg) in 1.56 kg and to lethal exit (52.74 %) to 4.38 % before young growth of Tuvan short fat-tailed sheep breeds breed was noted. According to the analysis of data of chemical composition of average test, meat contained 18.36 % of protein, and Buryat coarse wool ram surpassed Tuvan short fat-tailed sheep breeds’ contemporaries in this indicator by 3.78 %, and lagged behind according to the contents of fat in the meat by 2.97 %. According to the contents of moisture and ashes in the meat the distinction between the animals of compared groups was insignificant. At the same time the ram of Tuvan short fat-tailed sheep breed surpassed Buryat coarse-wool rams in energy value by 0.84 mJ, in calorific value by 202.43 kcal, or 10.8 % and 10.9 %. Meat and broth of young growth of both breeds had high tastes with the assessment 8.1 and 8.05 in Buryat coarse wool ram, 7.4 and 7.75 in Tuvan short fat-tailed sheep contemporaries. Also the content of replaceable and irreplaceable amino acids was defined. The content of heavy metals did not exceed maximum permissible norm and was in accordance with the results of other researches. According to the obtained data, it is possible to draw the conclusion that the meat of young growth of both breeds conforms to the requirements of environmentally friendly foodstuff.