Abstract
The analysis of approaches to reduce the consumption of fodder protein and greenhouse gas emissions from organic waste in milk production is carried out, and the need to determine these indicators for various approaches to organizing the technology of their feeding is established. An increase in the content of difficult-to-digest protein in the diets of high-yielding cows made it possible to reduce greenhouse gas emissions per head per day by 14.12 % in CO2 equivalent when using 1.5 kg of TEP-mix in the ration of cows. When using 1.0 kg of TEP-mix, this figure was 6.44 %. In terms of 1 kg of milk with basic fat content, these indicators are 26.72 % and 12.98 %, respectively. A multicriteria analysis of milk production with different approaches to organizing the technology of feeding dairy cows and, in particular, when using the additive TEP-mix with a protected protein showed a significant advantage of research option No. 1 (1.5 kg of TEP-mix). For it, the objective function according to the considered criteria is the smallest and amounts to 0.039 in comparison with the idealized variant. At the same time, the target function of the control variant (without TEP-mix) is 2.67 times worse, and for the experimental variant No. 2 (1.0 kg of TEP-mix) this indicator is 2.12. The use of TEP-mix in feeding cows provided an increase in their milk productivity, milk fat and protein content and, as a result, the profitability of milk production. The studies have found that the use of the proposed approaches to the organization of the technology of feeding cows provides an increase in their productivity, a decrease in the cost of feed protein and an improvement in environmental protection. According to the authors, this is due to an increase in the content of difficult-to-digest protein in the diets of high-yielding cows
Highlights
With the growth of the population on the planet, the demand for food – bread, milk, meat, etc. the need for grain, as a source of protein and energy feed for farm animals, increases
Research has been carried out to reduce the emission of greenhouse gases in the frequency of ammonia CH4 by replacing barley with oats in the feed mixture
The use of the protein additive TEP-mix in feeding cows with tied housing provided an increase in the milk productivity of natural milk and milk of basic fat content, the protein content in milk and, as a consequence, the profitability of milk production
Summary
With the growth of the population on the planet, the demand for food – bread, milk, meat, etc. the need for grain, as a source of protein and energy feed for farm animals, increases. One of the ways to reduce the consumption of protein in grain crops in feeding cattle is to take into account the digestibility of protein when developing rations. This will help to better meet the needs of animals, increase their productivity and reduce the cost of production. The need for these studies is to study various approaches to organizing the technology of feeding cows for their productivity and the level of greenhouse gas emissions This will reduce the loss of feed protein per unit of milk production and improve the environment
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