Weight dynamics and indicators of blood of calves depending on the rate of drinking of whole milk
https://doi.org/10.17238/issn2072-2419.2021.3.18
Abstract
The purpose of the work is to increase the intensity of calves growth in relation to blood parameters, taking into account the rate of drinking the whole milk, during the dairy period of their rearing. In order to conduct research of newborn calves of the first day of life, three groups were formed (control, 1-experimental, 2-experimental) of 12 heads in each, observing the principle of analog pairs by age, live weight, linearity, and also taking into account blood counts at birth. The control group of calves received whole milk - 5 kg per day, total - 300 kg, the first experimental group - 6 kg, total - 360 kg, the second - 7 kg, total - 420 kg. All calves of the studied groups were kept in the same conditions of feeding and keeping. Blood was taken from the studied groups of animals at birth and at the age of 3 months for the study of morphological and biochemical parameters in relation to the intensity of their growth. It was found that an increase in the drinking rate of the whole milk from 300 kg to 60.120 kg increases the content of total protein in the blood serum - by 10.53 and 9.55 g / l, glucose - by 0.36 and 0.31 mmol / l, calcium - by 0.24 and 0.26 mmol / l, with a decrease in beta globulins by 2.79 and 3.43% and immunoglobulin G - by 161.1 and 149.1 mg / ml compared to the control. The indicators of the growth intensity of the heifers of the experimental groups at the age of 3 months by 8.71 and 9.41 kg, at the age of 12 months - by 22.31 and 26.55 kg exceeded their peers from the control group. The drinking rate of the whole milk of 360 kg during the dairy period of rearing r is optimal, as it improves the qualitative and quantitative parameters of blood and increases the growth rate of animals. The difference with the animals that received the whole milk drinking rate of 420 kg is not reliable and is within the arithmetic mean error.
About the Authors
I. V. UslovaRussian Federation
applicant department. anatomy, obstetrics and surgery
N. B. Baimischev
Russian Federation
Doctor of Biological Sciences, prof.
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Review
For citations:
Uslova I.V., Baimischev N.B. Weight dynamics and indicators of blood of calves depending on the rate of drinking of whole milk. International Journal of Veterinary Medicine. 2021;(3):158-162. (In Russ.) https://doi.org/10.17238/issn2072-2419.2021.3.18