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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
Project
Project code: keine Angabe
Contract period: 01.06.2011
- 31.05.2014
Purpose of research: Experimental development
For the quantitative description of the protein and energy value of cereal grains in ruminants, extent and kinetic of the ruminal degradation of crude protein (XP) and starch are essential characteristics. Several studies have shown that ruminal degradation of crude protein and starch of grains differ between varieties. So far there are no experimental studies available to assess this variation in more detail, or even to predict them with appropriate methods. Using the in sacco method, the kinetic of the degradation of crude protein and starch is determined under standardized conditions. Thereby firstly a comprehensive data base is created on the ruminal degradation of crude protein and starch from maize, wheat, barley and triticale. These analyses are complemented with studies on gas formation and its kinetics using the Hohenheim Gas Test for the determination of the digestibility and content of metabolizable energy. These results are validated with those from the digestibility investigations (TP10). With this method also the contents of utilisable crude protein (nXP) are estimated by means of the ammonia release. Finally, in vitro specific NIRS calibrations for the key figures of crude proein and starch degradation as well as for gas formation and nXP shall be developed for of grain samples’ screening. Collaboration exists with TP9 and the Z-project, the subprojects 10 and 12 as well as to subproject 11 in methodological point of view. All grain lots used in the digestion experiments of TP10 are considered in TP 11 as well.
Section overview
Subjects
- Plant Breeding
- Animal nutrition
Collaborative Project
Innovation research on the feeding value of cereal grains and its improvement (GrainUp)
Excutive institution
Participating institutions
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 4: Development of in vitro methods for estimating the digestibility of amino acids from cereal grains
- 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 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
