Author:
Alekseeva E. I., ,Leshchuk T. L.,Lushnikov N. A.,Kostomakhin N. M., , ,
Abstract
The purpose of the research was to study the amino acid composition of beef obtained from beef cattle of Aberdeen Angus and Hereford breeds. The studies were conducted on steers of 12- and 18-month-old of Aberdeen Angus and Hereford breeds. The amino acid content was determined in an average meat sample by high-performance liquid chromatography. Samples for analysis were taken by quartering. It was found that beef obtained from Aberdeen-Angus and Hereford steers of diff erent ages was a complete product in terms of amino acid composition, which was confi rmed by the value of the protein quality index of 5,55–5,73 and 5,34–5,49, the ratio of methionine : tryptophan – 1,22 and 1,23. At the age of 12 months, the protein value of beef was higher in herdmates of Aberdeen-Angus breed by 3,78 % more than in steers of Hereford breed. The diff erence in the ratio of methionine : tryptophan was 0,81 % in favor of Hereford steers. The same content of aspartic acid in meat was found in young animals of 18 months of age of the studied breeds – 2,03 g/100 g. A comparative analysis of the concentration of essential amino acids in beef showed that Hereford steers had more valine, histidine, lysine, threonine and phenylalanine than herdmates of Aberdeen-Angus breed by 3,30; 4,26; 1,11; 7,14 (p < 0,05) and 4,76 %, respectively. The concentrations of valine, isoleucine, methionine and tryptophan were higher in Aberdeen Angus steers than in Hereford herdmates by 3,30; 2,50; 2,00 and 2,50 %, respectively. When analyzing the results of beef studies on the content of dispensable amino acids in 18-month-old steers, the advantage in concentration of alanine, glycine, glutamic acid, serine, tyrosine, cystine was in Aberdeen-Angus steers, the diff erence with the herdmates of Hereford breed was 6,50 (p < 0,05), 2,25; 8,28 (p < 0,05), 56,72 (p < 0,001), 1,10 and 9,09 % (p < 0,05), respectively. The indicator of the protein value of beef was higher in Aberdeen Angus steers by 5,11 %. The difference in the ratio of methionine: tryptophan again amounted to 0,81 % in favor of Hereford steers.
Publisher
PANORAMA Publishing House
Subject
Materials Chemistry,Economics and Econometrics,Media Technology,Forestry
Reference14 articles.
1. 1. Алексеева Е. И. Аминокислотный состав мяса молодняка абердин-ангусской породы // Инновационные достижения науки и техники АПК: сб. науч. тр. Междунар. науч.-практ. конф. - 2018. - С. 3-5.
2. 2. Алексеева Е. И. Качество мяса бычков абердин-ангусской породы /Е. И. Алексеева, Н. А. Лушников, Т. Л. Лещук // Главный зоотехник. - 2016. - № 4. - С. 49-56.
3. 3. Алексеева Е. И. Состояние отрасли мясного скотоводства в Курганской области / Е. И. Алексеева, Т. Л. Лещук // Главный зоотехник. - 2020. - № 2. - С. 30-36.
4. 4. Аминокислотный и жирно-кислотный составы говядины от кастратов калмыцкой породы разных заводских типов / Х. А. Амерханов, Ф. Г. Каюмов, Н. Н. Шевлюк и др. //Животноводство и кормопроизводство. - 2019. - Т. 102. - № 3. - С. 69-76.
5. 5. Аминокислотный состав мышечной ткани чистопородных и гибридных свиней в условиях континентального климата России / Л. А. Морозова, И. Н. Миколайчик, А. В. Ильтяков и др. //Аграрный вестник Урала. - 2019. - № 10 (189). - С. 40-46.
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