Milk Yield, Nitrogen Use Efficiency, and Rumen Fermentation in Barki Ewes, and the Performance of Their Offspring in Response to Increasing Dietary Protein Levels.
This study investigated the effects of increasing dietary crude protein (CP) levels on milk yield, nutrient utilization, nitrogen use efficiency, rumen fermentation, and lamb growth in lactating Barki ewes. Twenty-one multiparous ewes (mean body weight (BW) of 40.5 ± 0.41 kg), each nursing one lamb (mean BW: 6.22 ± 0.1...