Using protein concentrate in livestock and poultry diets for sustainable agriculture

Abstract

The paper presents the main results of the experiment on the use of high-protein concentrate “Gorlinka” in the diets of dairy cows and laying hens on their productive qualities. It was found that in terms of the main indicators of nutritional value (protein, fat, nitrogen-free extractives, ash elements), as well as in terms of amino acid composition and mineral substances, the studied concentrate surpasses the traditionally used in feeding farm animals and birds, oil cake and meal from sunflower seeds. The results of studies have shown that the groups of animals that received protein concentrate with the diet were in the lead. The use of protein concentrate “Gorlinka” in the feeding of dairy cows and laying hens increased the average daily milk yields of cows by 5.47-7.12%. There were also positive changes in the mass fraction of protein in milk by 0.03-0.04%, in dry matter by 0.04-0.09%, in the number of eggs laid by laying hens by 216-822 pieces, in the average egg weight by 0.77-1.66 g. Thus, the use of protein concentrate “Gorlinka” in feeding dairy cows and laying hens had a positive effect on the quality of the products (milk and edible eggs), while economic indicators improved.

An Investigation on the Effects of Partial Replacement of Rapeseed Cake in Ayrshire Dairy Heifers’ Diets with By-Product Source of Animal Protein on Body Weight Dynamics, Nutrient Balancing, and Blood Biochemical Markers

“…Ruminants that are reared for the production of a high amount of animal products require a high intake of bypass or slowly degradable protein rich in essential amino acids [27,28]. Protein, which undergoes cleavage in the small intestine, supplies the animal body with essential amino acids for the synthesis of milk and the formation of new body tissues [27,29,30].…”

The feasibility of using a probiotic to increase the egg productivity of chickens

“…The strains of these species are characterized by high resistance to adverse environmental conditions, enzymatic and antagonistic activity. Live cultures of sporeforming aerobic bacteria from the genus Bacillus should be considered environmentally friendly and promising for use in animal husbandry [15].…”