meatTheory and practice of meat processingТеория и практика переработки мяса2414-438X2414-441XФГБНУ «Федеральный научный центр пищевых систем им. В.М. Горбатова» РАН10.21323/2414-438X-2021-6-1-46-55meat-160Research ArticleСтатьиUse of iodine and selenium enriched fodder rations for production of fortified young lambhttps://orcid.org/0000-0003-3039-1324GiroT. M.

Tatyana M.  Giro  — doctor of technical sciences, professor, Department “Technology of production and processing of livestock products”

410012, Saratov, Teatralnaya Square, 1. Tel.: +7–960–342–30–16

girotm@sgau.ruhttps://orcid.org/0000-0002-0819-1484MolchanovA. V.

Alexey V.  Molchanov  — doctor of agricultural sciences, professor, Head of the Department “Technology of production and processing of livestock products”

410012, Saratov, Teatralnaya Square, 1. Tel.: +7–927–134–58–02

molchanov_av@mail.ruhttps://orcid.org/0000-0001-8674-4382KozinA. N.

Anton N. Kozin — candidate of agricultural sciences, docent, Department “Technology of production and processing of livestock products”

 410012, Saratov, Teatralnaya Square, 1. Tel.: +7–960–358–06–45

a.kozin.90@mail.ruhttps://orcid.org/0000-0001-8659-1566GiroA. V.

Anna V. Giro — candidate of biological sciences, docent, Department “”Technology of production and processing of livestock products””

 410012, Saratov, Teatralnaya Square, 1. Tel.: +7–937–026–28–22

giroannasgau@gmail.comhttps://orcid.org/0000-0002-0527-6036Fat’yanovE. V.

Evgenii V. Fat’yanov — candidate of technical sciences, docent, Department “Technology of production and processing of livestock products”

410012, Saratov, Teatralnaya Square, 1. Tel.: +7–902–040–73–32

fatjan@mail.ruhttps://orcid.org/0000-0003-0270-1970SvetlovV. V.

Vladislav V. Svetlov — candidate of agricultural Sciences, senior laboratory assistant, Department “Technology of production and processing of livestock products”

410012, Saratov, Teatralnaya Square, 1. Tel.: +7–960–344–62–52

svsvetlov1992@mail.ruSaratov State Vavilov’s Agrarian UniversityRussian Federation202127042021614655Copyright © Giro T.M., Molchanov A.V., Kozin A.N., Giro A.V., Fat’yanov E.V., Svetlov V.V., 20212021Giro T.M., Molchanov A.V., Kozin A.N., Giro A.V., Fat’yanov E.V., Svetlov V.V.Giro T.M., Molchanov A.V., Kozin A.N., Giro A.V., Fat’yanov E.V., Svetlov V.V.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://www.meatjournal.ru/jour/article/view/160

The article is devoted to preventive measures to eliminate the problem of dysmicroelementosis in order to increase the productivity of young sheep. The article presents the results of studies of the influence of feeding rations on the growth and development of young sheep of the Edilbaev breed, on the level of their meat productivity and the qualitative characteristics of biologically fortified lamb. Feed additives based on Yoddar-Zn and DAFS-25 were added to the main ration of lambs at the age of four months, once a day, being added into a fodder mixture with concentrates. For the experiment the herd of lambs was divided to four groups of 25 heads each.The changes in live weight at the age of four, five, six and seven months were analyzed, and it was found that at the age of seven months, the absolute average weight gain in the experimental groups varied from 3.45 kg to 4.49 kg, in the control group it was 3.1 kg, while the largest live weight gain was recorded in group III which received both feed additives based on Yoddar-Zn and DAFS-25.There were no significant differences in the parameters of body measurements, with the exception of group III, where the chest circumference increased by 7.2%, and the height of a lamb at the withers increased in average by 8.1%. It was found that group III had the highest meat density coefficient, equal to 3.9, and the cross-sectional area of m. Longissimus dorsi was equal to 13.61 cm2. It was noted that the amount of free amino acids of the lamb group III is 18.8% higher than the meat of the control group. The lamb obtained from the animals of the experimental groups showed a higher protein content and less fat. The ratio of water to protein in all samples was slightly higher than 3.7, which corresponds to the Federa number for meat raw materials. Enriching the rations of the Edilbaevskoy sheep with feed additives Yoddar-Zn and DAFS-25 promotes the stimulation of growth and development of animals, increases the productivity and nutritional value of lamb.

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The authors declare that there are no conflicts of interest present.