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Information on global poultry, pig and animal feed markets.

Helen Masey O’Neill

Dr Helen Masey O’Neill is a research manager for AB Vista Feed Ingredients Ltd.

ARTICLES

Fiber-degrading enzyme substrate interactions critical to efficacy in poultry diets

Chicken performance remains the only available measure when judging fiber-degrading enzymes
Despite widespread uptake across the poultry industry, considerable debate continues around how to achieve best results with fiber-degrading feed enzymes.Much of that debate relates to the complexity and variety of potential non-starch polysaccharide (NSP) substrates such enzymes can target, a situation which has led to a growing body of literature advocating the use of products with multiple NSP enzyme activities.
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Cómo escoger la enzima correcta en dietas de pollos

¿Productos multienzimáticos o enzimas solas?, depende, entre otras cosas, de la presencia del sustrato y de la capacidad de traducir esto al desempeño.
En los últimos años, ha cambiado drásticamente el uso de las enzimas en las dietas para pollos de engorda. Hasta hace poco, el uso de enzimas en estas dietas se restringía a las fitasas, centrado principalmente en la reducción del impacto ambiental de la producción. Pero hay nuevas opciones en el mercado de productos alternativos como carbohidrasas (xilanasa y glucanasa). ¿Cómo incluirlas en el alimento?
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Drying weather-damaged grain for poultry

Drying wheat is not simply a process to prevent deterioration. The approach may impact on digestibility.
Very wet wheat, harvested after poor weather, is often unsuitable for human food uses. Such harvest conditions often result in germination and increased levels of amylase and protease. These enzymes are related to decreased loaf size and poor gluten strength in bakery products and, as a result, this damaged wheat may be sold into the animal feed market.
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