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Titolo:
The effects of sepiolite in broiler chicken diets of high, medium and low viscosity. Productive performance and nutritive value
Autore:
Ouhida, I; Perez, J; Piedrafita, J; Gasa, J;
Indirizzi:
Univ Autonoma Barcelona, Dept Patol & Prod Anim, E-08193 Barcelona, Spain Univ Autonoma Barcelona Barcelona Spain E-08193 E-08193 Barcelona, Spain
Titolo Testata:
ANIMAL FEED SCIENCE AND TECHNOLOGY
fascicolo: 3-4, volume: 85, anno: 2000,
pagine: 183 - 194
SICI:
0377-8401(20000630)85:3-4<183:TEOSIB>2.0.ZU;2-I
Fonte:
ISI
Lingua:
ENG
Soggetto:
NONSTARCH POLYSACCHARIDES; PELLET DURABILITY; ABSORPTION; DIGESTION; MARKER;
Keywords:
sepiolite; broilers; viscosity; retention time;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
23
Recensione:
Indirizzi per estratti:
Indirizzo: Perez, J Univ Autonoma Barcelona, Dept Patol & Prod Anim, E-08193 Barcelona, Spain Univ Autonoma Barcelona Barcelona Spain E-08193 arcelona, Spain
Citazione:
I. Ouhida et al., "The effects of sepiolite in broiler chicken diets of high, medium and low viscosity. Productive performance and nutritive value", ANIM FEED S, 85(3-4), 2000, pp. 183-194

Abstract

Productive and digestive parameters (feed:gain conversion rates, whole-tract digestibility, intestinal viscosity and kinetics of digesta flow) were determined in broiler chickens fed on three diets of different viscosities, maize (low viscous), wheat-barley (medium viscous) and maize-10 g/ kg carboxymethyl cellulose (maize-CMC, high viscous) based. The three diets were supplemented with 0, 10 and 20 g/kg of sepiolite (EXAL(R) UE-562), respectively, to examine how soluble non-starch polysaccharides per se influence nutrient digestion, and the extent to which sepiolite supplementation (10 or 20g/kg) could improve dietary OM digestibility and AME content. Broiler chickens fed on maize and barley-wheat showed higher (p<0.001) live weights (664 and 672 g, respectively) at 22 days of age than those fed on maize-CMC (597 g). Significant differences were also observed in the voluntary intake and feed:gain conversion rates. No significant differences were observed in the productive performance of the animals associated with the sepiolite supplementation. Sepiolite increased significantly the organic matter digestibility, in line with decreases in the water-relative viscosity determined inthe jejunum, and changes in the kinetics of digesta flow. Sepiolite decreased mean retention time in the whole gastrointestinal tract and small intestine with medium and high viscous diets (barley-wheat, maize-CMC) and prolonged these times with the low viscous diet. No significant relationships were observed between the changes in the retention time of the digesta and the digestibility values estimated after sepiolite supplementation. A likely contribution of other digestive mechanisms, such as changes in the digesta viscosity or microbial activity could be involved. (C) 2000 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 01/12/20 alle ore 22:57:32