Effect of partial exchange of lactose with fat in milk replacer on performance and blood metabolites of Holstein calves.

The objective of this study was to determine the effect of dietary energy source (fat vs. carbohydrate) in calf milk replacer (MR) on growth performance parameters and feed intake in rearing calves. In a randomized complete block design, 68 Holstein calves [40 females and 28 males; (mean ± SD) body weight (BW): 43.

Effect of partial exchange of lactose with fat in milk replacer on ad libitum feed intake and performance in dairy calves.

Compared with Holstein whole milk, commercial milk replacers (MR) for calves deliver relatively high levels of lactose and low levels of fat, and protein levels are rather comparable, resulting in a lower energy density and energy-to-protein ratio of the diet. Thus, the objective of this study was to determine the effects of partially exchanging lactose with fat in MR on voluntary feed intake, growth performance, and feeding behavior. Thirty-two male Holstein calves (2.

Tonicity of oral rehydration solutions affects water, mineral and acid-base balance in calves with naturally occurring diarrhoea.

Recommendations for composition of oral rehydration solutions (ORS) for calves, particularly concerning Na , glucose, and their combined effect on tonicity, are not in line with guidelines for humans. Thus, this study aimed to determine the effect of ORS tonicity on water, mineral and acid-base balance. Seventy-two calves were selected based on the severity of dehydration and blood base excess (BE) on day 0.