Energy nutrition and nutrient digestibility of high-protein sunflower concentrate in feeding broiler chickens
DOI:
https://doi.org/10.31548/poultry2024.07-08.003Keywords:
energy nutrition, feeding, technology, nutrient digestibility, high-protein sunflower concentrate, broiler chickensAbstract
The studies were conducted on broiler chickens of the cross "Kobb 500" in the research laboratory of "Feed Additives" and "Animal Nutrition and Feed Quality" of the Department of Animal Nutrition and Feed Technology named after P.D. Pshenychny National University of Life Resources and Environmental Sciences of Ukraine. The aim of the study was to investigate the actual energy content and nutrient digestibility of high- protein sunflower concentrate in feeding broiler chickens.
The digestibility of nutrients in high-protein sunflower concentrate was carried out in a simple way, with two modifications: by the direct method and by the method of inert substances. Lignin, a natural component of plant-based feeds, was used as an inert substance.
The determination of digestibility in broiler chickens was carried out on 12 broilers aged 32-42 days. The chickens were kept in individual cages. The area per head was 0.2 m2, the feeding front was 25 cm, and the watering was 3 cm.
The experiment lasted 10 days. During this time, various methods were used to determine
digestibility in a group of experimental chickens. The physiological experiment consisted of preparatory and primary periods. During the preparatory period, which lasted 5 days, the bird was accustomed to consuming the studied feed and new conditions of detention, and the level of feed consumption was established.
The digestibility of crude protein was relatively high, at 95%. Moreover, the discrepancy between the indicators obtained for determining digestibility by the direct method and the method of inert substances was minimal, less than 1%. The same picture was observed for the digestibility of crude fat; the indicator was within 85%. The discrepancy between the two methods was minimal – 0.5%. The digestibility of structural carbohydrates was low, which is typical for poultry, especially young birds. The total energy value of high-protein sunflower concentrate for broiler chickens is 11.624–13.968 MJ/kg.
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