Formation of the morphophysiological status of the blood of young Tashla sheep against the background of the use of a biologically active supplement based on fatty acids and iodine

Objective: to study the development of the morphophysiological blood profile of young purebred Tashla sheep (first lambing) depending on age, as well as during the administration of a dietary supplement (DS) containing fatty acids and iodine.

Materials and Methods: the study involved 16 Tashla lambs, divided into control and experimental groups of 8 animals each. The animals in the experimental group received the DS at a dose of 1 ml/kg of body weight daily. The duration of administration was 30 days (from the day of birth to the 30th day after birth). The lambs received the DS individually. Blood samples were collected for clinical blood analysis (at 2 hours postnatal age, 7, 14, 21, 30, 60, and 90 days postnatal age). The clinical analysis included the following parameters: WBC (leukocytes), RBC (red blood cells), HGB (hemoglobin), HCT (hematocrit), MCV (mean corpuscular volume), MCH (mean corpuscular hemoglobin content), MCHC (mean corpuscular hemoglobin concentration), RDW (red blood cell distribution width), PLT (platelets), MPV (mean platelet volume), PDW (platelet distribution width), and PCT (platelet crit).

Results. The most pronounced changes with age were observed in lambs of both groups for WBC, RBC, HGB, MCV, and PLT. Significant differences in WBC, MCV, MCH, MCHC, RDW, PLT, MPV, and PDW parameters were observed after the use of the dietary supplement, primarily at 90 days of age. This indicates that the use of a dietary supplement based on fatty acids and iodine has a significant impact on the development of the blood system, particularly the erythrocyte and leukocyte components, increasing their values. Furthermore, it is possible to quantitatively assess the effect of the supplement on the development of the morphophysiological status of young Tashla sheep only after 90 days of age.

1. Pavlov M. B. New Breeding Achievement: the Tashlinskaya Sheep Breed / M. B. Pavlov, S. V. Taranov / / Farm Animals. – 2013. — № 2. – P. 24–26.

2. Balakirev N. A. State and Prospects for the Development of Sheep Farming in Russia / N. A. Balakirev, F. R. Feyzullaev et al. // Agrarian Bulletin of the Upper Volga Region. – 2019. — № 1 (26). – P. 58–63.

3. Barsukova Yu. G. Fattening and meat qualities of rams of the Volgograd breed and its crosses / Yu. G. Barsukov, I. N. Shaidullin et al. // Chief livestock specialist. – 2011. – №1. – 34—38.

4. Shaidullin I. N. Lamb market and ways of saturating it with domestic products / I. N. Shaidullin, F. R. Feyzullaev, Yu. G. Barsukov // Zootechnics. – 2009. – № 7. – P. 25—27.

5. Afanasyeva A. I., Buts N. Yu. et al. Biological characteristics of sheep / edited by prof. V. I. Maksimov. – Barnaul: RIO AGAU, 2015 – 187 p.

6. Karabaeva M. E. Influence of genotypic and paratypic factors on meat yield of sheep of different genotypes / Diss… Doctor of Biological Sciences, Moscow, Russian State Agrarian University – Moscow Agricultural Academy named after K. A. Timiryazev. Moscow, 2016.

7. Maksimov V. I. Hormonal status of animal organs in postnatal ontogenesis / Diss… Doctor of Biological Sciences. sciences. — Belgorod, 1999.

8. Shuimanova A. A. Reproductive qualities of Volgograd fine-wool ewes of different constitutional-productive types / A. A. Shuimanova, I. N. Shaidullin et al. // Veterinary medicine. — 2010. — № 2. — P. 38—41.

9. Mungin V. V. Optimization of lipid nutrition of sheep: author's abstract. diss. ... Doctor of Agricultural Sciences / V. V. Mungin. — Ulyanovsk, 2009. — 45 p.

10. Selionova M. I. Morpho-biochemical functions of the body of sheep and their correction in conditions of iodine deficiency / M. I. Selionova, A. K. Mikhailenko et al. // South of Russia: ecology, development. — 2019. – Vol. 14. – № 1. — P. 42—53. doi:10.18470/1992-1098-2019-1-42-53.

11. Chizhova L. N. Formation of immune status in sheep under conditions of iodine deficiency / L. N. Chizhova, A. K. Mikhailenko et al. // Agricultural Journal. — 2014. — № 7.

12. Maksimov V. I. Hormonal status of various organs of young cattle and sheep / V. I. Maksimov // Agricultural biology. — 2001. — № 2. — P. 60—63.13. Shatskikh E. V. Individual development of animals / E. V. Shatskikh, V. I. Maksimov. – Ekaterinburg, 2012. — 124 p.

13. Shuimanova, A. A. Physiological and biochemical status of Volgograd fine-wool sheep depending on their constitutional and productive type / A. A. Shuimanova, V. I. Maksimov et al. // Veterinary medicine. — 2010. — № 2. — P. 33—37.

14. Feeding standards and rations for farm animals. Reference manual. 3rd revised and supplemented edition / Ed. by A. P. Kalashnikov, V. I. Fisinin, V. V. Shcheglov, N. I. Kleymenov. — Moscow, 2003. — P. 211—225.

15. Maksimov V. I. On the dynamics of the hormonal status of tissues and organs of sheep in postnatal ontogenesis / V. I. Maksimov // Agricultural Biology. — 1999. — № 6. — P. 88—92.

16. Maksimov V. I. Study of the development of the morphophysiological status of the blood of Tashla sheep depending on age and functional state // V. I. Maksimov, G. I. Chevpelenok, O. A. Shapkaits // Genetics and animal breeding. — 2024. — № 3. — P. 114—121.

17. Mikhailenko A. K. Ontogenetic features of immune reactivity, growth and development of sheep under different conditions / A. K. Mikhailenko, L. N. Chizhova, Ch. B. Chotchaeva, Z. K. Gadzhiev, M. A. Dolgashova // Agrarian scientific journal. —2019. — № 5. — P. 57—59. doi: 10.28983/asj.y2019i5pp57-59. EDN YDEEOC.

18. Mikhailenko A. K. Morphological composition of sheep blood under different conditions / A. K. Mikhailenko, E. V. Ashikhmina, M. A. Dolgashova // Agricultural journal. — 2013. — № 6-1.

19. Terentyeva D. A. Thrombocytogram in different animal species depending on the season of the year / D. A. Terentyeva, V. A. Sorokina // Problems of intensive development of animal husbandry and their solution: collection of scientific papers of the international scientific and practical conference of students, graduate students and young scientists, Bryansk, March 24–25, 2022 / FGBOU VO "Bryansk SAU", Institute of Veterinary Medicine and Biotechnology. — Bryansk: Bryansk State Agrarian University, 2022. — P. 181—184.