Type of dietary fibre (soluble versus insoluble) influences digestion, faeces characteristics and faecal waste production in Nile tilapia (Oreochromis niloticus L.)

By A. K. Amirkolaie, J. Leenhouwers, Johan Verreth, J. Schrama. 2005

171 citations recorded by the source corpus.

The physico-chemical properties of nutrients influence the physical characteristics of faeces and thus may affect waste removal efficiency. The aim of this study is to assess the effect of type of non-starch polysaccharide (NSP) on digesta viscosity, faeces recovery and nutrient digestibility in Nile tilapia. Insoluble (cellulose) and soluble (guar gum) NSPs were included separately and combined at a level of 8%, thereby formulating four experimental diets. The diets were assigned to 16 tanks with 35 fish each, with four replicates for each diet. Cellulose inclusion did not influence digesta viscosity, growth and digestibility of protein and starch and tended to increase faeces recovery (P=0.06). Guar gum inclusion increased digesta viscosity and reduced the growth and digestibility of protein, fat and starch (P<0.01). Faeces recovery was reduced by 42% in diets containing guar gum. There were interaction effects (P<0.05) between cellulose and guar gum for the growth and feed conversion ratio, indicating that cellulose alleviated the negative impact of guar gum. In conclusion, dietary soluble NSPs increase organic matter load in the culture system through a reduction in faeces recovery and nutrient digestibility, whereas insoluble NSPs improve the removal efficiency of particles by increasing faeces recovery.

Subfields: Animal Science and Zoology, Aquatic Science, Immunology

View Paper: https://www.semanticscholar.org/paper/43489ac0d108de1c4f35620af5524c74540ceb91

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Citations in the corpus

Digesta characteristiscs and performance of African catfish (Clarias gariepinus) fed cereal grains that differ in viscosity (2007, background): “Also in several cultured fish species, such as Atlantic salmon, rainbow trout, common carp, and Nile tilapia, dietary soluble NSP have been shown to decrease growth performance and depress nutrient digestibilities (Davies, 1985; Storebakken, 1985; Shiau et al., 1988; Refstie et al., 1999; Hossain et”
Screening of nutrient digestibilities and intestinal pathologies in Atlantic salmon, Salmo salar, fed diets with legumes, oilseeds, or cereals (2007, background): “, 1983), that cellulose did not affect “efficiencies of utilization of dietary energy or protein” in rainbow trout (Wiesmann and Pfeffer, 1986), and that dietary cellulose did not influence digestibility of protein or starch in Nile tilapia (Oreochromis niloticus) (Amirkolaie et al., 2005).”
Digestibility of Dry Matter, Protein, Lipid, and Organic Matter of Two Fish Meals, Two Poultry By-product Meals, Soybean Meal, and Distiller's Dried Grains with Solubles in Practical Diets for Sunshine Bass, Morone chrysops 3 M. saxatilis (2008, background): “Utilization of NSPs depends on solubility, with soluble NSPs being better utilized than insoluble (Amirkolaie et al. 2005).”
Non-starch polysaccharides and their role in fish nutrition – A review (2011, unknown): “d and Serfaty-Lacrosniere (1992); Choct (1997); Amirkolaie et al. (2006);”