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10 July 2008 - 12:15
Customer driven solutions for the global feed industryResearchers and nutritionists from all continents of the world recently attended Danisco Animal Nutrition’s technical seminar at WPC 2008, Australia. With the global feed industry currently feeling the stress of high feed ingredient prices, the seminar provided the latest insights into how enzyme technology can ease the pressure of increasing feed costs. Dr Peter Selle, Honorary Associate with the Poultry Research Foundation, University of Sydney, and Dr Aaron Cowieson, Senior Scientist with Danisco Animal Nutrition provided new insights into phytase inclusion in poultry diets. Drs Selle and Cowieson both pointed out that it is not just the level of phytate in the diet that needs to be taken into consideration when using phytase. Phytate interactions with other nutrients, such as protein and fibre, may affect response to phytase. In addition, the dietary calcium:phosphorus ratio can have a substantial effect on the response to phytase addition, and should considered by nutritionists when formulating feeds. Dr Cowieson advised that due to the current phenomenal rise in the price of feed ingredients, producers have the opportunity to further drive down costs of production by increasing the inclusion of phytase in their feed. He further recommended the use of new generation bacterial phytases, which are more effective than traditional fungal phytases, and to take account of energy and amino acid matrix values together with phosphorus and calcium. He concluded that where 500 FTUs /kg feed tends to be the standard phytase inclusion rate in broiler feeds, with current feed ingredient prices, the economic optimum phytase inclusion rate is currently around 1000 FTUs/kg feed. For producers feeding wheat-based diets, Dr Alexandre Péron, Technical Services Manager with Danisco, explained how nutritionists can use enzyme technology to manage wheat variability. Wheat is highly variable. Scientific literature has reported huge differences in wheat AME, from 8.5 to 15.9 MJ/kg, DM basis. Dr Péron went onto explain that because it is difficult to accurately predict the AME of wheat , feeding wheat-based diets may result in reduced growth, poor nutrient utilisation and variable bird performance. Wheat viscosity mainly affects fat absorption, grain hardness affects starch digestibility - starch digestibility being lower in hard wheat cultivars, and fibre all contribute to variations in AME. Feed processing (grinding and pelleting) and bird genetics also impact wheat digestibility. Dr Péron reported that whilst xylanase enzymes are abundantly used in wheat-based broiler diets to improve wheat digestibility and reduce variations in bird performance, research from the University of Massey, New Zealand suggests that using phytase in combination with xylanase has additional benefits on performance of birds fed wheat-based diets. Dr Ceinwen Gilbert, Technical Services Manager for Danisco presented the latest tools producers can use to reduce the cost of corn-based feeds. Corn is the most commonly used grain in poultry diets and widely regarded as a consistent raw material. In fact, corn can be extremely variable in terms of both its nutrient content and availability, and consequently its financial value to the feed producer. Broiler feeds are often formulated using fixed nutrient values, which take no account of batch-to-batch variation and risk under-exploiting bird growth, feed conversion and profit. Representing a breakthrough in feed enzyme technology, Danisco’s Avicheck Corn service calculates the increase in corn energy value by enzyme addition. She explained that including this energy matrix value into the producer’s feed formulation provides opportunities to reduce feed costs. Typically the higher energy corn replaces some more expensive high-energy ingredients, for example fat or oil. Dr Ed Moran, Professor of Poultry Science at Auburn University, USA, comprehensively described how adding carbohydrase enzymes with phytase to corn-based broiler diets potentiates the effect of phytase in terms of improving nutrient digestibility, increasing weight gain and feed conversion efficiency and producing more lean meat. Looking to the future, Dr David Cadogan, an eminent pig nutritionist, described how the poultry industry could benefit from adopting net energy systems used widely in the pig industry, to more accurately formulate poultry feeds. Danisco Animal Nutrition (www.danisco.com/animalnutrition), a business unit of leading global ingredient specialist Danisco A/S (Denmark), pioneered the development and use of enzymes and betaine in animal nutrition. Its products are now widely used by poultry and pig producers throughout the world. The company’s mission is to deliver innovative, sustainable solutions that increase efficiency and safety of the food production chain in an environmentally sensitive way. For further press information, please contact:Andrea Barletta, Global Marketing Director, Danisco Animal Nutrition Julian Cooksley Account Manager Kendalls Communications
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