Abstract
Calf milk replacers commonly contain 40-50% lactose. For economic reasons, starch is of interest as a lactose replacer. Compared with lactose, starch digestion is generally low in calves. Ileal disappearance of starch was only 60% in calves, whereas lactose disappeared for 97% (Coombe and Smith, 1974). This indicates that the activity of enzymes required for the hydrolysis of starch to glucose limits starch digestion in milk-fed calves. It is however unknown which enzyme system is limiting the rate of starch hydrolysis in the intestinal lumen of calves. In addition, a maximum may exist for the daily quantity of starch that can be hydrolyzed and absorbed. Potentially, enzyme systems may also adapt to the starch fed. Both may be subject to considerable inter-individual variation.
Original language | English |
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Title of host publication | Proceedings of the 4th International Symposium on Energy and Protein Metabolism and Nutrition, 9-12 September 2013, Sacramento, California, USA |
Editors | J.W. Oltjen, E. Kebreab, H. Lapierre |
Place of Publication | Wageningen |
Publisher | Wageningen Academic Publishers |
Pages | 233-234 |
Volume | 134 |
ISBN (Print) | 9789086862276 |
DOIs | |
Publication status | Published - 2013 |
Event | 4th International Symposium on Energy and Protein Metabolism and Nutrition, Sacramento, California, USA - Duration: 9 Sept 2013 → 12 Sept 2013 |
Conference
Conference | 4th International Symposium on Energy and Protein Metabolism and Nutrition, Sacramento, California, USA |
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Period | 9/09/13 → 12/09/13 |