A Meta-analysis of the Effects of Pre-weaned Calf Nutrition and Growth on First-lactation Performance – Excerpt

J Dairy Sci August 2016

Vol. 99, No. 8, pp. 6206-6214

A Meta-analysis of the Effects of Pre-weaned Calf Nutrition and Growth on First-lactation Performance – Excerpt

S. Gelsinger*, A. Heinrichs, C. Jones

Several studies and a 2013 meta-analysis have proposed that increased feeding of milk or milk replacer to neonatal calves may improve subsequent milk production. However, data from individual studies are conflicting, and the meta-analysis was unable to assess the influence of calf starter intake. The objective of the current meta-analysis was to review newly published data and evaluate the effects of pre-weaning diet (including calf starter intake) and growth rate on first-lactation milk, fat, and protein yield.

These data indicate that provision of adequate nutrients from liquid and solid feeds and maintaining average daily gain above 0.5 kg/d can enhance the first-lactation performance of heifers when combined with proper post-weaning practices. To read more, click HERE.