Published in Scientific Papers. Series D. Animal Science, Vol. LXIII, Issue 1
Written by Danut Ioan STRUTI, Daniel MIERLITA, Ioan Mircea POP, Daniela LADOSI, Tudor PAPUC
The utilization of the lupine seeds (Lupinus spp. L.) from low-alkaloids varieties in monogastric animals feeds is limited due to the presence of antinutritive factors. Studies show that a considerable improvement of the nutritional composition of lupine is achieved by dehulling the seeds. The seed dehulling process increases the crude protein and fat levels, and decreases the content of cellulose, neutral detergent fibers and acid detergent fibers. An improvement of the biological value of lupine protein and the nutritional quality of fat is also obtained by dehulling. Antinutritive factors, such as non-starch polysaccharides and oligosaccharides, are partially reduced by dehulling, because of their storage in high concentrations in the kernel. For poultry and swine feeding, the utilization of whole lupine seeds is limited due to the lack of endogenous enzymes for processing the antinutritional factors. Therefore, numerous studies highlight that the use of dehulled seeds realizes similar bioproductive performances as soybean by-products. This is possible if the optimal inclusion level of lupine in diets and the adequate balance in limited amino acids are realized. Lupine seeds are therefore a valuable alternative source of proteins and fat, which is proven to be able to support productions, while improving the quality of animal products.
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