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Titolo:
The effects of adding xylanase, vitamin C and copper sulphate to wheat-based diets on broiler performance
Autore:
Marron, L; Bedford, MR; McCracken, KJ;
Indirizzi:
Dept Agr & Rural Dev, Agr & Food Sci Ctr, Agr & Environm Sci Div, Belfast BT9 5PX, Antrim, North Ireland Dept Agr & Rural Dev Belfast Antrim North Ireland BT9 5PX , North Ireland Queens Univ Belfast, Belfast, Antrim, North Ireland Queens Univ Belfast Belfast Antrim North Ireland , Antrim, North Ireland Finnfeeds Ltd, Marlborough, England Finnfeeds Ltd Marlborough EnglandFinnfeeds Ltd, Marlborough, England
Titolo Testata:
BRITISH POULTRY SCIENCE
fascicolo: 4, volume: 42, anno: 2001,
pagine: 493 - 500
SICI:
0007-1668(200109)42:4<493:TEOAXV>2.0.ZU;2-7
Fonte:
ISI
Lingua:
ENG
Soggetto:
APPARENT METABOLIZABLE ENERGY; ENZYME SUPPLEMENTATION; ALPHA-AMYLASE; INTESTINAL VISCOSITY; FED RYE; CHICKENS; POULTRY; GROWTH; STARCH; POLYSACCHARIDES;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
48
Recensione:
Indirizzi per estratti:
Indirizzo: McCracken, KJ Dept Agr & Rural Dev, Agr & Food Sci Ctr, Agr & Environm SciDiv, NewforgeLane, Belfast BT9 5PX, Antrim, North Ireland Dept Agr & RuralDev Newforge Lane Belfast Antrim North Ireland BT9 5PX
Citazione:
L. Marron et al., "The effects of adding xylanase, vitamin C and copper sulphate to wheat-based diets on broiler performance", BR POULT SC, 42(4), 2001, pp. 493-500

Abstract

1. The study used a 3 x 3 factorial design to evaluate the effects of 3 additives ( none; vitamin C {250 mg/kg}; copper sulphate {250 mg/kg}) and 3 enzyme additions (none; Avizyme 1300 {Finnfeeds Ltd, 1 g/kg in food}; Avizyme 1310 {liquid spray, post-pelleting, 0.5 g/kg}). All experimental diets were mixed, heat-conditioned (80"C for 2 min) and pelleted. Copper sulphate (diets NCu; DCu; LCu) and Avizyme 1300 (diets DN; DC; DCu) were added duringmixing. Vitamin C was sprayed at 10 ml per kg (diets NC; DC; LC) and the liquid enzyme was diluted 20-fold and sprayed at the same rate (diets LN; LC; LCu), post-pelleting.2. Additive or enzyme addition did not significantly affect DM intake or liveweight gain (LWG). Enzyme addition improved gain: food (P=0.014), AME:GE(P<0.001), ileal apparent digestibility of DM (P=0.008) and starch (P<0.001), faecal apparent digestibility of starch, crude fat and NDF (P=0.008; <0.001; <0.001 respectively) and reduced in vivo viscosity (P< 0.001).3. Copper sulphate addition depressed gain: food (P=0.047), AME: GE (P=0.002), ileal apparent digestibility of starch (P<0.001) and faecal apparent digestibility of starch (P=0.003) and crude fat (P<0.001) due to a negative additive x enzyme interaction when copper sulphate and dry enzyme were included together.4. Vitamin C decreased in vivo viscosity by 20% but failed to have any effect on performance. Both enzyme forms gave similar improvements in performance in the absence of copper sulphate.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/09/20 alle ore 11:47:41