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Titolo:
Improvements in nutrient digestibility and performance of broiler chickensfed a wheat-and-rye based diet supplemented with enzymes
Autore:
Steenfeldt, S; Pettersson, D;
Indirizzi:
Danish Inst Agr Sci, Dept Anim Physiol & Nutr, Res Ctr Foulum, DK-8830 Tjele, Denmark Danish Inst Agr Sci Tjele Denmark DK-8830 Foulum, DK-8830 Tjele, Denmark Novo Nordisk Enzyme Business AS, Feed Applicat, DK-2880 Bagsvaerd, DenmarkNovo Nordisk Enzyme Business AS Bagsvaerd Denmark DK-2880 vaerd, Denmark
Titolo Testata:
JOURNAL OF ANIMAL AND FEED SCIENCES
fascicolo: 1, volume: 10, anno: 2001,
pagine: 143 - 157
SICI:
1230-1388(2001)10:1<143:IINDAP>2.0.ZU;2-W
Fonte:
ISI
Lingua:
ENG
Soggetto:
METABOLIZABLE ENERGY; CHEMICAL-COMPOSITION; FAT TYPE; XYLANASE; MICROFLORA; ABSORPTION; RETENTION; PENTOSANS; VISCOSITY; POULTRY;
Keywords:
wheat; intestinal viscosity; nutrient digestibility; performance; chickens; enzymes;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
29
Recensione:
Indirizzi per estratti:
Indirizzo: Steenfeldt, S Danish Inst Agr Sci, Dept Anim Physiol & Nutr, Res Ctr Foulum, POB 50, DK-8830 Tjele, Denmark Danish Inst Agr Sci POB 50 Tjele DenmarkDK-8830 e, Denmark
Citazione:
S. Steenfeldt e D. Pettersson, "Improvements in nutrient digestibility and performance of broiler chickensfed a wheat-and-rye based diet supplemented with enzymes", J ANIM FEED, 10(1), 2001, pp. 143-157

Abstract

The aim of the present experiment was to study the effect of an increasinglevel of an enzyme preparation on intestinal viscosity, ileal digestibility and performance of broiler chickens fed a diet containing wheat (63%) andrye (9.35%) in the period from 0-21 days of age. Four diets, containing 11.98 MJ ME/kg; feed and 19.52% protein, were included in the experiment: Control (basal diet), L, M, and H (basal diet with 100, 200 and 300 mg Bio-Feed Wheat CT/kg, respectively). Feed conversion in chickens fed the diet withthe medium dose of enzyme was significantly (P <0.002) better compared with the control group and the chickens fed the diet with the lowest dose of enzyme by 5.0 and 3.3%, respectively. Weight gain of chickens fed diet M wasimproved by 5.3%, and was significantly (P <0.0008) different from all theother groups. Enzyme addition reduced viscosity in jejunum (P <0.007) and ileum (P <0.05), diet L being the exception. A significant (P <0.001) improvement in ileal protein digestibility was found in the chickens fed diet M,the increase being 12.4% compared with the control, confirming the resultsfound on performance. Enzyme addition to the other groups increased the ileal protein digestibility on average by 3.5%, but not significantly different from the control. A pronounced effect of enzyme supplementation was found on the ileal fat digestibility of chickens fed diet M, the improvement (P<0.0007) being as high as 17.0%. In addition, the ileal digestibility of organic matter in chickens fed diet M was improved by 8.9% compared with thecontrol group (P <0.02).

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Documento generato il 23/09/20 alle ore 07:56:21