Features of metabolism in cows fed with diets with energy supplements
https://doi.org/10.32634/0869-8155-2022-362-9-69-73
Abstract
The aim of this work is to study the effect that energy supplements provide on the digestibility and application of nutrients in high-yielding cows diets during their milking period. The scientific and economic experiment was run at CJSC “Glinki” in Kurgan region. For this experiment, three groups were formed, which consisted of Black-and-White cows, according to the principle of analogues. Studies showed that feeding cows with the energy supplement “Lakto S” increased the digestibility of dry matter by 1.68%; of organic matter — by 1.53%; of crude protein — by 2.25 (P < 0.05)%; of crude fiber — by 2.40%; of crude fat — by 3.47%; nitrogen-free extractable substances — by 0.84%, and also changed the concentration of hydrogen ions by 0.16 units, increased VFA by 15.51units (P > 0.05), changed the amount of acetic and propionic acids — by 2.48 and 0.70%, and reduced the level of total nitrogen and ammonia in the rumen of cows by 3.59 and 4.11% respectively. The energy supplement “Lacto S”, fed to the cows during their milking period, provided more efficient use of feed energy for milk production by 11.98% (12.47 MJ) (P < 0.05) in comparison with the control group. The zootechnical feasibility of using the energy supplements “Lacto S” and “Extima 100” in the diets of high-yielding cows in order to enhance the processes of digestion and metabolism in their bodies has been experimentally substantiated.
About the Authors
I. N. Mikolaychik
Kurgan State Agricultural Academy by T.S. Maltsev
Russian Federation
Russian Federation
doctor of agricultural sciences, professor,
Lesnikovo village, Ketovsky district, Kurgan region, 641300
L. A. Morozova
Kurgan State Agricultural Academy by T.S. Maltsev
Russian Federation
Russian Federation
doctor of biological sciences, professor,
Lesnikovo village, Ketovsky district, Kurgan region, 641300
V. G. Chumakov
Kurgan State Agricultural Academy by T.S. Maltsev
Russian Federation
Russian Federation
doctor of technical sciences, associate professor,
Lesnikovo village, Ketovsky district, Kurgan region, 641300
V. A. Morozov
Kurgan State Agricultural Academy by T.S. Maltsev
Russian Federation
Russian Federation
candidate of agricultural sciences, Senior Lecturer,
Lesnikovo village, Ketovsky district, Kurgan region, 641300
S. L. Safronov
St.Petersburg State University of Veterinary Medicine
Russian Federation
Russian Federation
Doctor of Agricultural Sciences, Associate Professor,
5 Chernigovskaya str., St. Petersburg, 196084
N. I. Kulmakova
Russian State Agrarian University – Moscow Timiryazev Agricultural Academy
Russian Federation
Russian Federation
Doctor of Agricultural Sciences, Associate Professor,
49 Timiryazevskaya str., Moscow, 127550
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Review
For citations:
Mikolaychik I.N., Morozova L.A., Chumakov V.G., Morozov V.A., Safronov S.L., Kulmakova N.I. Features of metabolism in cows fed with diets with energy supplements. Agrarian science. 2022;(9):69-73. (In Russ.) https://doi.org/10.32634/0869-8155-2022-362-9-69-73
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