Carbohydrate utilization in the pre-ruminant calf

摘要: 1. Changes in blood sugar levels after giving carbohydrates have been used to assess carbohydrate utilization pre-ruminant calves aged between 10 and 50 days.2. Glucose, galactose lactose were readily utilized by all calves; the of glucose increased with age, whereas that remained constant.3. Maltose fructose was low young slightly age.4. Sucrose starch not utilized.5. Studies three older (aged 53, 88 106 days) which infused into proximal duodenum showed glucose, galactose, xylose caused marked increases level reducing sugar, sucrose no increase, maltose intermediate. Xylose very little change concentration.6. It appeared preferential uptake occurred from a glucose-galactose mixture.7. A non-linear relationship found concentration or increase sugar.