Digestibility of amino acids in organically cultivated white-flowering faba bean and cake from cold-pressed rapeseed, linseed and hemp seed in growing pigs

Abstract

The study aimed at determining the ileal apparent (IAD) and standardised ileal (SID) digestibility of crude protein (CP) and amino acids (AA) in organically cultivated white-flowering faba beans (Vicia faba), and cakes from hemp seed (Cannabis sativa), linseed (Linum usitatissimum) and rapeseed (Brassica napus). The experiment was designed as a four period cross-over trial with six castrated male Yorkshire pigs fitted with post valve T-caecum (PVTC) cannulas. The IAD and SID of CP for the feed ingredients ranged from 79.2-85.9% and were affected by dietary treatment, with significantly lower values in rapeseed cake. The IAD and SID of most AA in the feed ingredients were also significantly affected by dietary treatment, but without any consistent trend. However, the overall digestibilities were in general comparable with conventional protein feed ingredients. Thus, these alternative protein feed ingredients have the potential to be used to a greater extent when formulating organic pig diets.

Digestibility of fibre sources and molecular weight distribution of fibre fractions in ileal digesta of growing pigs

“…In previous studies, Lindberg (1997a, 1997b) reported digestibility values for dietary components and energy in lucerne, white clover, red clover and perennial ryegrass. However, the low inclusion levels applied make values derived by difference calculation very vulnerable even to small errors in the dataset, which has been acknowledged earlier in studies estimating the digestibility of feed ingredients by difference calculation (Høøk Presto et al 2011). The WB and SBP are well studied high-fibre feedstuffs in pig nutrition.…”

Inclusion of intensively manipulated silage in total mixed ration to growing pigs – influence on silage consumption, nutrient digestibility and pig behaviour

“…However, digestibility values obtained through difference calculations gets very vulnerable, even to small errors in the dataset, when low inclusion levels are applied. This has also been acknowledged earlier in studies estimating the digestibility of feed ingredients by difference calculation (Høøk Presto et al 2011;Ivarsson et al, 2012). Although inclusion level of SI and SC silage was the same, SC pigs consumed a lower amount of the silage, which might have had a negative effect on the estimation of energy and nutrient digestibility.…”

Genetic and Metabolite Variability among Commercial Varieties and Advanced Lines of Vicia faba L.

“…[ 58 ]. Additionally, non-GM legume crops, which are locally produced and can be protein alternatives and nutrient-rich sources, are in great demand for the improvement of the self-sufficiency and sustainability of farming systems [ 59 , 60 , 61 , 62 ]. Recent metabolomics studies have focused on the phytochemical/antioxidant properties of different V. faba seed germplasm [ 5 , 63 ] and highlighted the importance of increasing its consumption by humans.…”

“…However, to the best of our knowledge, there are no such studies regarding V. faba seed metabolomics and its impact on supplements for animal feed. The only studies referring to V. faba used for animal feed, are mainly focused on ensiled products and on specific metabolites [ 59 , 64 ], or on its use as a protein alternative to soybean meals [ 60 ].…”