Effects of Feeding Milk Replacer Once Versus Twice Daily on Glucose Metabolism in Holstein and Jersey Calves

摘要

Eighteen Holstein (experiment 1) and 15 Jersey (ex- periment 2) heifer calves were fed milk replacer once or twice daily to determine effects of feeding frequency on weight gain, starter intake, and glucose metabolism. Body weights were measured weekly from birth to 8 Wk. Blood samples were collected at wk 1 through 6 From all calves before and at 30, 60, 90, 120 and 180 Min after the morning feeding. Plasma was analyzed For glucose, insulin, glucagon, and nonesterified fatty Acids (NEFA). Urine was collected 90 min postfeeding To measure glucose concentration.