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Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) - Subproject 4: Development of in vitro methods for estimating the digestibility of amino acids from cereal grains
Project
Project code: keine Angabe
Contract period: 01.06.2011
- 31.05.2014
Purpose of research: Experimental development
Simple and fast in vitro methods which can be applied, under the conditions of work routine and which can replace time-consuming and expensive animal experiments to estimate the ileal digestibility of amino acids in feed for pigs and poultry do not exist yet. This is mainly due to the low level data base of in vivo digestibility values from animal experiments as a prerequisite for the validation of the respective in vitro values. Therefore the in vivo data produced in sub-projects 1, 2 and 3 with pigs and poultry are the basis for the establishment of species-specific in vitro approaches for the estimation of precaecal digestibility of amino acids in the grain depending on crop type and variety (maize, barley, wheat , triticale, rye and, if necessary oats in horse). After validation, the database will be expanded significantly by the extension of the in vitro studies on defined grain lots that are provided by the participating plant breeding companies. Supplemented by the results from the chemical-analytical characterization (Z-project) the subproject-specific in vivo and in vitro data are the basis for deriving regression equations to estimate the levels of digestible protein and digestible amino acids in grains. In addition, the use of NIRS appears as an attractive method for the prediction of digestibility due to rapid and simple implementation. Therefore it shall be further tested whether an estimation of precaecal amino acid digestibility using NIRS calibration is possible for each species. The project is closely cross-linked to subprojects 1, 2, 3 and 8.
Section overview
Subjects
- Plant Breeding
- Animal nutrition
- Biotechnology
Collaborative Project
Innovation research on the feeding value of cereal grains and its improvement (GrainUp)
Excutive institution
Associated projects: GrainUp
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) - Subproject 11: Protein value of DDGS (Dried Distillers Grains with Solubles) in ruminants
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) - Subproject 3: Studies on the precaecal digestibility of amino acids from barley, wheat, rye and triticale in pigs
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) - Subproject 6: Phosphorus availability in broiler chickens and turkeys
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) - Subproject 9: Protein and energy value of cereal grains in ruminants as a result of ruminal degradation of crude protein and starch
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) - Subproject Z: Central coordination and analysis
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) – Subproject 1
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) – Subproject 2
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) – Subproject 3
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) – Subproject 4
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) – Subproject 5
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) – Subproject 6
- Collaborative project: Innovative characterisation and improvement of the feeding value of cereal grains (GrainUp) – Subproject 7
