Affiliation:
1. Federal Research Center of Animal Husbandry – VIZ Academician L.K. Ernst
Abstract
Relevance. The study of the physiological effect of the pancreas, which is a slaughter waste, on the body of calves of early weaning during the formation of digestive activity of the gastrointestinal type to improve the adaptive capabilities of the body of calves is of scientific and practical interest.Methods. Scientific and production experience was carried out on calves of the weaning period for 90 days. The pancreas of pigs (pancreas) was fed, obtained from the waste of the slaughterhouse production, dried with the use of lyophilization. Calves – analogs by breed, age, live weight – were formed into two groups (n = 8), the animals of the experimental group were given a feed product at the rate of 40 mg/kg of live weight daily with compound feed with group loose content. Live weight accounting (n = 8) and analysis of biochemical and hematological composition of blood (n = 5) were carried out.Results. Higher live weight gains of calves treated with PHC were established with improvement of biochemical and hematological blood parameters (without negative aftereffect). With a tendency to increase the level of total protein due to the albumin fraction, a lower level of urea is also positive evidence of an improvement in nitrogen metabolism. Higher creatinine levels in combination with glucose and alkaline phosphatase levels characterize an increase in the availability of energy exchange processes in the body of calves under the influence of a feed product. Positive differences in the levels of phospholipids, triglycerides, cholesterol against the background of lower bilirubin levels indicate an improvement in lipid metabolism, but also (indirectly) lipotropic liver function. Positive trends have been established in hematological indicators of blood, higher levels of erythrocytes, hemoglobin, hematocrit, lower levels of leukocytes.
Reference20 articles.
1. Budeeva I.Yu., Kuznetsov M.Yu. Study of efficiency of use of feeds from biological waste of animal origin with the addition of carbamide for feeding cows. Osnovy i perspektivy organicheskikh biotekhnologii. 2019; (4): 3‒9 (In Russian). https://www.elibrary.ru/hizedk
2. Vorotnikov I.L. et al. The best available technologies for slaughtering animals and poultry at meat processing plants. Рrocessing of by-products. Monograph. Saratov: Saratov State Agrarian University. 2018; 609 (In Russian). ISBN 978-5-907035-16-4 https://www.elibrary.ru/yolool
3. Kuznetsova N.A., Zinich L.V. Secondary waste processing as a factor of sustainable development of agricultural enterprises. Fundamental research. 2021; (11): 120‒124 (In Russian). https://doi.org/10.17513/fr.43132
4. Pasichny V.N. Secondary can become primary. Rationalization of the use of meat and fat production resources. Endocrine glands for the production of enzyme and organ preparations. Myasnoi biznes. 2006; (1): 47‒76 (In Russian).
5. Nguyen V.T. (ed.). Potential, Uses and Future Perspectives of Agricultural Wastes. Recovering Bioactive Compounds from Agricultural Wastes. Wiley. 2017; 1‒32. https://doi.org/10.1002/9781119168850.ch1