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Engineering plants for animal feed for improved nutritional value

Published online by Cambridge University Press:  05 March 2007

Peter E. V. Williams
Peter E. V. Williams*
Affiliation:
Syngenta Crop Protection AG, WRO-1002.13.63, Schwarzwaldallee 215, CH-4058, Basel, Switzerland
*
Corresponding author: Dr Peter E. V. Williams, fax +4161 323 69 44, [email protected]
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Abstract

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Feed formulation to meet nutritional requirements of livestock is becoming increasingly challenging. Regulations have banned the use of traditional high-quality protein supplements such as meat-and-bone meal, pollution from animal excreta of N and P is an issue and antibiotics are no longer available as insurance against the impact of enteric infection and feed anti-nutritional factors. The improved genetic potential of livestock is increasing daily requirement for energy and protein (essential amino acids). To benefit from the enhanced growth potential of livestock diets with high nutrient density are needed that can be formulated from crops without increased cost. Genetic modification of commodity crops used to manufacture animal feed in order to improve the density and quality of available nutrients is a potential solution to some of these problems. Furthermore, crops may be used as biofactories to produce molecules and products used in animal feed with considerable reductions in manufacturing fixed costs. Nevertheless, there are considerable not insurmountable challenges, such as the creation of sufficient economic value to deliver benefit to all members in the feed production chain, which is an essential element of identity preserving and delivering the technology to livestock producers. Individual output traits in the major commodity crops may not provide sufficient value to adequately compensate all the members of the feed production chain. Successful adoption of output traits may rely on inserting combinations of agronomic input traits with specific quality traits or increasing the value proposition by inserting combinations of output traits.

Keywords

FeedGenetic engineeringGenetically-modified crops
Type
The food chain: Plants, animals and man Plenary Lecture
Information
Proceedings of the Nutrition Society , Volume 62 , Issue 2 , May 2003 , pp. 301 - 309
Copyright
Copyright © The Nutrition Society 2003

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