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Basically, the bark serves as a source of fiber and can be used by ruminants.
The production of sunflower oil is profitable and does not generate waste. From sunflower seeds it is possible to obtain at least 60-70% of excellent-tasting edible oil, saturated with vitamins E, A, D, K, and around 35% of recyclable waste, which provide an additional benefit to agriculture, including livestock farming.
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The husk is separated during the preparation of sunflower seeds for oil extraction during the shelling process, the flour is separated during the oil extraction by extraction, and the cake is formed if the oil is obtained by pressing. Due to the high content of proteins and vitamins, this sunflower waste is considered one of the most valuable and relatively inexpensive feeds for farm animals.
Therefore, the use of sunflower residues in pig fattening can effectively increase animal productivity and at the same time reduce nutrient consumption. In the processing of sunflower seeds, in addition to cakes and meals, shells are obtained. The peel is a low-nutrient food product that requires additional processing before eating. The basis of the peel is fiber, which is represented by cellulose, hemicellulose, lignin, cutin, silicic acid and pectins.
The lipids contained in the shell differ significantly in their chemical composition from the fat that is part of the crumb. Regarding the content of palmitic and stearic acids, the peel surpasses the core, the oleic acid content in the peel and core is the same. Other nutrients are contained in small quantities and enclosed in a dense cell membrane impregnated with lignin and waxes, making them inaccessible to enzymatic action. The digestibility of nutrients in the shell is: crude protein – 18, crude fat – 50, crude fiber – 10, BEV – 17. Basically, the shell serves as a source of fiber and can be used by ruminants.
Crude fiber is considered a ballast substance that reduces the nutritional value of food, but its lack in the diet is unfavorable for ruminants and negatively affects the course of many processes in the body. Fiber creates the necessary volume, physical structure and friability of the feed mass. It ensures the normal functioning of the stomach, intestinal motility, and is a source of volatile fatty acids. The digestion of carbohydrates in feed in ruminants and the fermentation of fiber occurs under the action of enzymes from microorganisms in the rumen. They ferment cellulose, starch, oligosaccharides, pectin substances, modify the nature of nitrogen compounds and synthesize B vitamins.
Source: Leonardo Gottems | agrolink
