Muhammad Usman Akhtar, Abdul Qayum, Anshan Shan, Shuli Chou, Hyeonsoo Jo, Syed Waqas Ali Shah and Ishfaq Muhammad, 2020. Influence of Different Dietary Rumen Degradable Protein Concentrations on Nutrient Intake, Nutrient Digestibility, Nitrogen Balance, Blood Urea Nitrogen and Milk Yield of Lactating Beetal Goats. Pakistan J. Zool., 52: 213-221. DOI: https://dx.doi.org/10.17582/journal.pjz/2020.52.1.213.221