title: The nutritional value of narrow-leafed lupine (Lupinus angustifolius) for fattening pigs.
abstract: The aim of this study was to determine the nutrient digestibility of seeds of four varieties of narrow-leafed lupines (Lupinus angustifolius) and the possibility of soya bean meal (SBM) substitution by lupine seeds alone and in combination with rapeseed meal (RSM) in the diets of pigs. The seeds of the lupine varieties Kalif, Sonet, Zeus and Boruta were analysed. The apparent total tract digestibility (ATTD) was determined on 50 cross-bred pigs using the difference method with titanium dioxide as a marker. The substitution of SBM by lupine seeds alone (at 0 - 100%) was tested on 60 pigs (20-105 kg body weight (BW)) and by a combination of lupine seeds and RSM on 180 fattening pigs (35-80 kg BW). The chemical composition of lupine seeds differed considerably, especially in terms of crude protein and mineral content. All seeds contained less than 0.05% alkaloids and 9.3% oligosaccharides in dry matter. The ATTD of protein ranged from 70% to 74%, those of ether extract from 36% to 55% and those of gross energy from 77% to 84%. The entire replacement of SBM by lupine seeds (var. Sonet) did not have a negative effect on the performance of grower and fattener pigs. The substitution of SBM by a combination of lupines and RSM reduced the performance of growing and finishing pigs significantly.
authors.affiliation: a Department of Animal Nutrition and Feed Management , Poznan University of Life Sciences , Poznań , Poland.
authors.forename: Małgorzata
authors.initials: M
authors.lastname: Kasprowicz-Potocka
authors.affiliation: a Department of Animal Nutrition and Feed Management , Poznan University of Life Sciences , Poznań , Poland.
authors.forename: Anita
authors.initials: A
authors.lastname: Zaworska
authors.affiliation: a Department of Animal Nutrition and Feed Management , Poznan University of Life Sciences , Poznań , Poland.
authors.forename: Sebastian Andrzej
authors.initials: SA
authors.lastname: Kaczmarek
authors.affiliation: a Department of Animal Nutrition and Feed Management , Poznan University of Life Sciences , Poznań , Poland.
authors.forename: Andrzej
authors.initials: A
authors.lastname: Rutkowski
mesh_terms: D000821:Animal Feed / Q000032:analysis; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D029741:Brassica rapa / Q000737:chemistry; D004032:Diet / Q000662:veterinary*; D004063:Digestion; D031297:Lupinus / Q000737:chemistry*; D008297:Male; D009753:Nutritive Value; D011044:Poland; D011897:Random Allocation; D013025:Glycine max / Q000737:chemistry; D034421:Sus scrofa / Q000254:growth & development / Q000502:physiology*
keywords: Lupinus angustifolius; alkaloids; digestibility; nutrient content; oligosaccharides; performance; pigs; varieties