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Amino-Acid Composition of Meat Produced by Ram Lambs of the Dagestan Mountain Breed and Their Crosses

  • ANIMAL SCIENCE AND VETERINARY MEDICINE
  • Published:
Russian Agricultural Sciences Aims and scope

Abstract

Surveys were carried out in order to study the amino-acid composition of meat produced by the young stock of the Dagestan Fine-Wool sheep and their crosses with rams of the Russian Meat-Type Merino breed in the Republic of Dagestan. The valine, leucine with isoleucine, lysine, and phenylalanine concentrations in meat produced by the Dagestan Mountain and Russian Meat-Type Merino crosses were lower than that in the purebred Dagestan Mountain sheep by 2, 1.6, 1, and 1.8%, respectively. Contrast patterns for methionine (7.7%) and tryptophan (1.8%) were recorded. The protein of the longissimus dorsi-muscle tissue of the ram lamb crosses compared to the purebred animals was different in the elevated levels of the essential amino acids, including lysine, phenylalanine, leucine with isoleucine, methionine, valine, and threonine (by 24, 10, 20, 21, 14, and 16%, respectively). The limiting amino acid in the meat protein of ram lambs was phenylalanine, which had the lowest score in both the meat average sample and the longissimus dorsi muscle for both experimental animal groups. The highest score in both ram lamb groups was recorded for tryptophan. Taking into consideration the limiting amino-acid score, the potential of protein derived from both the meat of the Dagestan Mountain ram lambs and the average meat sample taken from crosses comprised 48%. The value of this parameter for the longissimus dorsi muscle of the ram lamb crosses was 6% higher, which can indicate its higher biological value.

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Authors and Affiliations

  1. TSKhA Russian State Agricultural University–Moscow Timiryazev Agricultural Academy, 127550, Moscow, Russia

    Yu. A. Yuldashbaev

  2. Federal Agricultural Science Center of Republic of Dagestan, 367014, Makhachkala, Republic of Dagestan, Russia

    A. M. Abdulmuslimov

  3. Russian Research and Project Technology Institute of Sorghum and Maize, 410050, Saratov, Russia

    I. A. Sazonova

Authors
  1. Yu. A. Yuldashbaev
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  2. A. M. Abdulmuslimov
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  3. I. A. Sazonova
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Correspondence to Yu. A. Yuldashbaev.

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Conflict of interest. The authors declare that they have no conflict of interests.

Statement on the welfare of animals. All applicable international, national, and/or institutional guidelines for the care and use of animals were followed.

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Translated by O. Zhiryakova

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Yuldashbaev, Y.A., Abdulmuslimov, A.M. & Sazonova, I.A. Amino-Acid Composition of Meat Produced by Ram Lambs of the Dagestan Mountain Breed and Their Crosses. Russ. Agricult. Sci. 47, 627–630 (2021). https://doi.org/10.3103/S1068367421060185

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  • DOI: https://doi.org/10.3103/S1068367421060185

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