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Imprint
Estimation of standardised precaecally digestible amino acids for poultry by means of a laboratory method enables use of small-seeded legumes in a sustainable, nitrogen-otimized feeding strategy
Project
Project code: 2821EPS007
Contract period: 01.08.2023
- 31.01.2026
Budget: 331,956 Euro
Purpose of research: Applied research
Keywords: protein plants, emissions, animal feed, poultry, climate protection, sustainability
For the first time a practical approach for the estimation of the standardized precaecal digestible crude protein (cdCP) and amino acids (cdAA) in feedstuffs for poultry is being developed. With regard to specific characteristics and the range of variation in the protein value between e.g. varieties, locations and years of cultivation this enables the use of small-seeded legumes in a performance-based and nitrogen-reduced protein supply in animal production possible. Existing data gaps will be closed; this has a positive impact on use, acceptance and economy of legumes. Protein sources of various origin/treatment are characterized by non-fibre bound amino acids. By comparison of in vivo data with laboratory analytical results a generalised estimating equation for cdAA may be derived. A nitrogen-optimized feeding strategy will be possible and include the use of local, i.a. specifically-treated feedstuffs trough precise combination of various protein sources and gains and supplementation of specific amino acids. A unique pool of samples of up to now 200 feeding stuffs (legumes and soybean-based commodities, various treatments and genotypes) and 100 compound feeds, of which cdAA in poultry has already been determined in vivo, is available. Thus regionally produced legumes may be integrated in efficient feeding strategies thereby harmonising animal requirements (animal health), economic (flexible planning of rations, optimised production processes) and ecopolitical needs (reduction of greenhouse gases and nitrate in ground water,) as well as social expectations (ecology, reduction of animal experiments and GMO soy). In this project an equation will be developed to estimate the precaecal digestible amino acids (cdAA) of poultry diets using a laboratory method and solutions will be given.
Section overview
Subjects
- Animal nutrition
- Climate Change
Framework programme
Federal Organic Farming Scheme and other forms of sustainable agriculture (BÖLN)
