title: Insoluble fibres, satiety and food intake in cats fed kibble diets.
abstract: Fibre is generally considered to dilute food energy, alter intestinal transit time and promote satiety; however, in cats, conflicting results have been found. In this study, two insoluble fibres were evaluated in four feline diets: control (no added fibre); diet with 10% sugar cane fibre; diet with 20% sugar cane fibre; and diet with 10% cellulose. The experiment was conducted with 32 cats, eight animals per diet, over 42 days: 1-7 for diet adaptation; 8-14 for total collection of faeces for digestibility; 15-17 for fresh faeces collection for fermentation products measurements; 18-20 for gastrointestinal transit time determination; 21 and 37 to evaluate the pattern of food intake; and 22 and 42 to assess satiety. Means were compared by analysis of variance and orthogonal contrasts, and the pattern of food intake was compared by repeated-measures analysis of variance (p < 0.05). The cats exhibited increased food intake after fibre addition to the diets (p < 0.05), achieving similar energy consumption. Cellulose and the two levels of sugar cane fibre reduced nutrient availability and energy digestibility, but only sugar cane fibre reduced fat digestibility (p < 0.05). Faecal output and the number of defecations per day increased with fibre inclusion (p < 0.05). Gastrointestinal transit time did not change with sugar cane fibre inclusion, but it was reduced with cellulose addition (p = 0.032). The pattern of food intake did not change, but cats fed fibre-supplemented diets exhibited greater consumption of a challenge meal, increasing energy intake (p < 0.01) when exposed to a palatable, energy-dense food.
authors.affiliation: Univ. Estadual Paulista - UNESP, Jaboticabal, Brazil.
authors.forename: B A
authors.initials: BA
authors.lastname: Loureiro
authors.affiliation: Univ. Estadual Paulista - UNESP, Jaboticabal, Brazil.
authors.forename: N K
authors.initials: NK
authors.lastname: Sakomura
authors.affiliation: State University of Maringá - UEM, Maringá, Brazil.
authors.forename: R S
authors.initials: RS
authors.lastname: Vasconcellos
authors.affiliation: Univ. Estadual Paulista - UNESP, Jaboticabal, Brazil.
authors.forename: G
authors.initials: G
authors.lastname: Sembenelli
authors.affiliation: University of São Paulo - USP, Cidade Universitária, São Paulo, Brazil.
authors.forename: M O S
authors.initials: MOS
authors.lastname: Gomes
authors.affiliation: Univ. Estadual Paulista - UNESP, Jaboticabal, Brazil.
authors.forename: M
authors.initials: M
authors.lastname: Monti
authors.affiliation: Univ. Estadual Paulista - UNESP, Jaboticabal, Brazil.
authors.forename: E B
authors.initials: EB
authors.lastname: Malheiros
authors.affiliation: Univ. Estadual Paulista - UNESP, Jaboticabal, Brazil.
authors.forename: I M
authors.initials: IM
authors.lastname: Kawauchi
authors.affiliation: Univ. Estadual Paulista - UNESP, Jaboticabal, Brazil.
authors.forename: A C
authors.initials: AC
authors.lastname: Carciofi
mesh_terms: D000821:Animal Feed / Q000032:analysis*; D000824:Animal Nutritional Physiological Phenomena; D000818:Animals; D002415:Cats / Q000502:physiology*; D004032:Diet / Q000662:veterinary*; D004043:Dietary Fiber / Q000592:standards*; D005260:Female; D008297:Male; D012528:Satiety Response / Q000187:drug effects*
chemical_list: D004043:Dietary Fiber
keywords: digestibility; energy intake; feline; gastrointestinal transit time; propionate; satiety