Protein Evaluation of horse feed : a novel concept.
- Publication Type
- Contribution to conference
- Authors
- Zeyner A, Kirchhof S, Susenbeth A, Südekum K-H, and Kienzle E.
- Year of publication
- 2010
- Published in
- EAAP Publication
- Band/Volume
- 128/
- Series/labeling
- 5th European Workshop on Equine Nutrition
- ISBN / ISSN / eISSN
- 978-90-8686-155-2
- Page (from - to)
- 40-42
- Conference name
- The impact of nutrition on the health and welfare of horses
- Conference location
- Cirencester (UK)
- Conference date
- 19.-22.09.2010
- Keywords
- Aminosäure, Dünndarmverdaulichkeit, Protein, small intestine
In equines, amino acids can be absorbed exclusively from the small intestine. However, only few experimental results on small intestinal digestible (sid) crude protein (CP) and amino acids (AA) are available. therefore the analytical fraction of neutral detergent insoluble protein (NDICP) and the corresponding neutral detergent soluble protein (NDSCP) have been used to develop a protein evaluation system based on estimated sidCP and sidAA. There was a strong positive correlation of the intake of sidCP reported in the literature to that of NDSCP. The slope of the linear regression line revealed the small intestinal digestibility of NDSCP being 90%. Results indicate that the analytical fraction of NDICP can be used indirectly to estimate the part of protein available for auto-enzymatic digestion. Because literature refers to a similar AA profile in NDICP and NDSCP within a given feed the NDICP/NDSCP concept may be transferred to AA. The proposed system is open to be adjusted depending on the scientific progress without altering its structure.