Seasonal effects on growth, digestibility, and metabolism of preweaned dairy calves in the Southeastern United States.

The aim of the current study was to evaluate seasonal effects on growth, digestibility, and metabolism of dairy calves in Georgia. Holstein calves (n = 48/season) were enrolled at 7 d of age (DOA) from June to Aug (defined as summer, BW = 40 ± 4 kg) and from Nov to Jan (defined as winter, BW = 42 ± 4 kg). Similar general management and feeding practices were applied to calves in both seasons.

Effects of milk replacer feeding rate and frequency of preweaning dairy calves in the southeastern United States: Performance, abomasal emptying, and nutrient digestibility.

To evaluate the effects of milk replacer (MR) feeding rate (FR) and frequency (FF) on performance, abomasal emptying, and nutrient digestibility in the southeastern United States, Holstein calves (n = 48/season) were enrolled at 8 d of age (DOA) during summer [June to August, body weight (BW; mean ± SD) = 40.71 ± 4.35 kg] and winter (November to January, BW = 42.

Effect of milk replacer feeding rate and frequency of preweaning dairy calves in the southeastern United States: Glucose metabolism.

The objective of this experiment was to examine the effect of milk replacer (MR) feeding rate (FR) and frequency (FF) on glucose metabolism before and after weaning during summer and winter in the subtropical climate of the southeastern United States. Holstein calves (n = 48/season) were enrolled at 8 d of age (DOA) in the summer (June to August, body weight = 40.6 ± 0.