Productive qualities of Kalmyk breed young bulls using a new lactulose-containing feed additive

Introduction. Beef cattle breeding is a significant segment of the Russian agricultural production economy. At the same time, an important component of its success is ensuring the required volume of gross production of meat and meat products and the level of their representation in the country’s food market. A significant resource in increasing beef production can be the use of various additives, premixes, and feed products developed based on biologically active substances and having a functional focus in feeding cattle.

Object. Young bulls of the Kalmyk breed, 8 months old.

Materials and methods. The experiment was carried out based on Agrofirm Aduchi LLC, Republic of Kalmykia, on two groups of bulls: “control” and “experience”, 30 heads each. Animals of the first group (control) received feed (compound feed) of 3.5 kg per head; for bulls of the other group (experiment), the feed was mixed with the feed additive “Laktuvet-1” in an amount of 0.5% by weight of the concentrates. The duration of the experiment was 240 days.

Results and conclusions. Animals that received the feed additive “Laktuvet-1” as part of the diet exceeded their analogues in the “control” group in live weight at the age of 16 months. by 1.47% (P≥0.95). The absolute growth in live weight over the entire period of the experiment was 228.24 kg, which is higher than in the "control" group by 6.63 kg, or 2.99% (P≥0.99). The physiological health parameters of all experimental animals were within physiological norms. In general, the introduction of the feed additive “Laktuvet-1” at a dosage of 0.5% of the weight of concentrated feed into the diets of Kalmyk breed young bulls contributed to the positive dynamics of all indicators studied during the experiment.

1. Koschaev A. G., Tuzov I. N., Kalmykov Z. T., Tuzova Yu. A. Growing young bulls of meat breeds in conditions of intensive agriculture. Polythematic network electronic scientific journal of the Kuban State Agrarian University. 2022. № 175. Pp. 232-245.

2. Sabitov M. T., Farkhutdinova A. R., Malikova A. R., Fenchenko N. G., Khairullina N. I., Shamsutdinov D. Kh. Effect of a complex mineral-vitamin feed additive on hematological and biochemical indicators of calf blood. Dairy and meat cattle breeding. 2020. № 1. Pp. 27-31.

3. Pristupa V. N., Krotova O. E., Savenkov K. S., Savenkova M. N., Sabirova I. Yu. The influence of stoilovo-pastoral growing technology on the productivity of young Kalmyk breed. Technology and technology in animal husbandry. 2022. № 3 (47). Pp. 11-15.

4. Matveeva E. A., Tyapugin E. E., Bogolyubova L. P., Nikitina S. V., Semenova N. V., Tyapugin S. E., Kochetkov A. A. Dynamics of the number and productivity of dairy and dairy meat cattle in the Russian Federation. Dairy and meat cattle breeding. 2020. № 8. Pp. 3-6.

5. Duskaev G. K., Kharlamov A. V., Levakhin G. I., Azhmuldinov E. A., Amerkhanov H. A., Miroshnikov S. A., Rysaev A. F. A brief overview of beef production systems in Russia and in the world. Animal husbandry and feed production. 2022. № 3 (105). Pp. 78-94.

6. Kuzmina I. Yu. Method of increasing the resistance of young cattle. Siberian Bulletin of Agricultural Science. 2023. V. 53. № 1. Pp. 62-70.

7. Sleptsov I. I., Koryakina L. P., Martynov A. A., Vasiliev Y. S., Fedorov P. B., Kayumov F. G., Tretyakov R. F. Morphological and biochemical blood compositions in bulls of different cattle in the sharply continental climate of Yakutia. Animal husbandry and feed production. 2020. V. 103. № 1. Pp. 94-102.

8. Otarov A. I., Kayumov F. G., Tretyakova R. F. Growth, development and meat qualities of purebred and crossbred bulls when fattening on the site depending on the season of the year. News of Orenburg State Agrarian University. 2021. № 3 (89). Pp. 267-272.

9. Otarov A. I., Kayumov F. G., Tretyakov R. F. Morphological and biochemical blood indicators of bulls of different genotypes in the conditions of the high mountain zone of the KabardinoBalkarian Republic. News of Orenburg State Agrarian University. 2022. № 4 (96). Pp. 277-281.

10. Bogolyubova L. P., Nikitina S. V., Matveeva E. A., Tyapugin E. E. Breed composition in the breeding meat cattle breeding of Russia. Dairy and meat cattle breeding. 2021. № 1. Pp. 10-12.

11. Shichkin G. I., Lebedev S. V., Kostyuk R. V., Shichkin D. G. Beef production: condition and prospects. Dairy and meat cattle breeding. 2021. № 8. Pp. 2-5.

12. Sadykov M. M., Simonov G. A., Sadykov R. M. Hematological indicators of heifers of Kalmyk cattle in the foothills of Dagestan. Izvestia Dagestan GAU. 2023. № 2 (18). Pp. 120-126.

13. Fedotova A. S., Kozina E. A., Makarov A. V., Khanipova V. A., Kolomeitsev A. V. Network system for keeping cattle in the conditions of the Krasnoyarsk Territory. Veterinary medicine and feeding. 2023. № 5. Pp. 82-85.

14. Dunin I. M., Tyapugin S. E., Meshcherov R. K., et al. The state of meat cattle breeding in the Russian Federation: realities and prospects. Dairy and meat cattle breeding. 2020. № 2. Pp. 2-7.

15. Makarov A. V., Khanipova V. A., Fedotova A. S., Kozina E. A., Kolomeitsev A. V. Comparative characteristics of systems for raising young cattle for fattening. Journal of Agriculture and Environment. 2023. № 9 (37).

16. Klobasa F., Butler J. E. Absolute and relative concentrations of immunoglobulins G, M, and A, and albumin in the lacteal secretion of sows of different lactation numbers. Am. J. Vet. Res. 1987. Vol. 48 (2). Pр. 176-182.

17. Manchini G., Carbonara A. O., Heremans I. P. Immunochemical quantitation of antigens by single radial immunodiffusion. Immunochemistry. 1965. Vol. 2 (3). Pр. 235-254.

18. Skelhorn E. P. G., Garcia-Ara A., Nova R. J., Kinston H., Wapenaar W. Public opinion and perception of rosé veal in the UK. Meat Science. 2020. Vol. 167. Article number: 108032.