E3S Web Conf.
Volume 244, 2021XXII International Scientific Conference Energy Management of Municipal Facilities and Sustainable Energy Technologies (EMMFT-2020)
|Number of page(s)||8|
|Section||Resilience and Environmental Engineering|
|Published online||19 March 2021|
Features of the formation of the immune status in calves with different methods of feeding with colostrum
1 Samara State Agricultural University, Uchebnaya St., 2, Kinel, Samara region, 446442, Russia
2 Orenburg State Agricultural University, Chelyuskintsev St., 18, Orenburg, 460795, Russia
* Corresponding author: KaramaevSV@mail.ru
The features of different methods of feeding calves with colos-trum and their influence on the growth, development and health of young animals have been studied in a comparative aspect. The studies were car-ried out using newborn Holstein heifers at a modern dairy complex. De-pending on the method of feeding, the calves consumed different amounts of colostrum on the first day: with a suckler mother cow - 10.8 liters, when using a suckling bottle and a nipple pail - 8 liters, using the CalfDrencher system - 7 liters. Different volumes and rates of colostrum entry into the digestive system of newborns had a significant impact on its digestion in calf abomasum and the transition of immunoglobulins into blood serum. It was found that only with the sucking method, 6 hours after drinking the first portion of colostrum, the content of immunoglobulins in the blood se-rum of calves was more than 10 mg/ml, which corresponds to the physio-logical norm. In accordance with the intensity of the transfer of immuno-globulins from colostrum to blood serum, cases of disease in calves were distributed in the first month of life, which affected their further growth and development. As a result, the live weight required for the first insemi-nation (at least 420 kg) was achieved by the Holstein heifers in group I at the age of 16 months, in group II - 18 months, in group III - 17 months, in group IV - 19 months.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.