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Organic Poultry Production: Providing Adequate Methionine

{Tool} Organic Poultry Production: Providing Adequate Methionine. Creator(s): Fanatico, Anne. Issuing Organisation(s): NCAT - National Center for Appropriate Technology. OK-Net EcoFeed-selected tool. (2010)

Image (JPEG) - Cover Image - English

Online at: https://attra.ncat.org/viewhtml/?id=336


Methionine is the most limiting amino acid in a typical poultry diet. In this article, they focus on protein/methionine requirements of poultry and balance in the diet. Some studies found that slow-growing broilers require lysine at the same concentration as fast-growing broilers. Laying hens have lower methionine requirements than broilers. Methionine requirements, amino acid balance and energy balance related to feed intake are also discussed with a table indicating the presence of digestible methionine in different feedstuffs.
Another topic is the difference in profit between small-scale vs large scale production looking at plant-based protein, animal-based protein and additional sources and how to add these to poultry diets. The tool concludes that synthetic methionine is necessary to satisfy amino acid requirements for organic poultry but that alternative sources of protein and animal proteins can help to reach amino acid balance.
The target group of the tool is organic feed advisors and it can be used for ration formulations.

EPrint Type:Practice tool
Teaser:Methionine can be provided by intact protein or as a pure amino acid.
What problem does the tool address?:Fulfilling amino acid methionine (MET) requirements without overfeeding protein is difficult, because in organic farming, synthetic amino acid and animal by-products are not allowed.
What solution does the tool offer?:The tool encourages multiple-phase feeding, using high levels of protein during the starter phase of growth and then decreasing protein levels during the finishing phase. This is the way to pair the diet with nutrient requirements.
Country:United States of America
Type of Practice Tool:Leaflets & guidelines
Keywords:animal husbandry, broiler chickens, feeds, ration planning, nutritional requirements, nutritive value, poultry
Agrovoc keywords:
Englishanimal husbandryhttp://aims.fao.org/aos/agrovoc/c_8532
Englishbroiler chickenshttp://aims.fao.org/aos/agrovoc/c_9435
Englishnutritional requirementshttp://aims.fao.org/aos/agrovoc/c_5277
Englishnutritive valuehttp://aims.fao.org/aos/agrovoc/c_5278
Subjects: Animal husbandry > Feeding and growth
Animal husbandry > Production systems > Poultry
Research affiliation: European Union > Horizon 2020 > OK-Net EcoFeed
European Union > Horizon 2020 > OK-Net EcoFeed > Selected tools
USA > Other organizations
Related Links:https://attra.ncat.org/viewhtml/?id=336, https://attra.ncat.org, https://organic-farmknowledge.org/tool/36943, https://www.facebook.com/organicfarmknowledge/photos/a.341364110046066/565614237621051, https://twitter.com/farm_knowledge/status/1207656985128325120
Project ID:oknet
Deposited By: Forschungsinstitut für biologischen Landbau, FiBL
ID Code:36943
Deposited On:13 Dec 2019 11:05
Last Modified:28 Apr 2020 13:43
Document Language:English

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