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Titolo:
EXOGENOUS ENZYMES FOR PIGS AND POULTRY
Autore:
BEDFORD MR; SCHULZE H;
Indirizzi:
FINNFEEDS INT LTD MARLBOROUGH WILTS ENGLAND
Titolo Testata:
Nutrition research reviews
fascicolo: 1, volume: 11, anno: 1998,
pagine: 91 - 114
SICI:
0954-4224(1998)11:1<91:EEFPAP>2.0.ZU;2-V
Fonte:
ISI
Lingua:
ENG
Soggetto:
WATER-SOLUBLE PENTOSANS; BETA-GLUCANASE SUPPLEMENTATION; WHEAT PHOSPHORUS AVAILABILITY; ENDOGENOUS PHYTASIC ACTIVITY; CARBOXY METHYL CELLULOSE; BROILER CHICKEN DIETS; NONSTARCH POLYSACCHARIDES; GASTROINTESTINAL-TRACT; MICROBIAL PHYTASE; INTESTINAL VISCOSITY;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
194
Recensione:
Indirizzi per estratti:
Citazione:
M.R. Bedford e H. Schulze, "EXOGENOUS ENZYMES FOR PIGS AND POULTRY", Nutrition research reviews, 11(1), 1998, pp. 91-114

Abstract

Many feed ingredients in use in monogastric diets contain significantquantities of antinutritional factors (ANF) which limit both their feed value and their use. Almost all enzymes currently being used address such factors to varying degrees, allowing for more economic utilization of raw materials. However, animal response to xylanase, beta-glucanase and even phytase utilization reported in the literature tends to vary. Factors such as enzyme source, ingredient variety and environment under which the ingredient was grown, stored and processed into animal feed, age of animal, interaction with other dietary ingredients, and health status are shown to affect significantly the response obtained. As a result, the mode of action of xylanases and beta-glucanases isstill debated due to too much emphasis being placed on interpretationof individual trial results without regard to the interactive factorsor the literature dataset as a whole. Better understanding of such factors will improve data interpretation. While results with phytase arenot subject to such extreme variation, they are nevertheless inconsistent in the degree to which inorganic phosphorus can be replaced by this enzyme. Greater understanding of the ANF and factors which interactto govern the response to added exogenous enzymes will undoubtedly improve the economic return and confidence in their use. Improved knowledge of ANF structure will result in development of enzymes directed towards far more specific targets, which enhances the likelihood of success and should reduce the overall enzyme usage.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 11:08:42