Kerr B J, Easter R A. 1995.Effect of feeding reduced protein, amino acids - supplemented diets on nitrogen and energy balance in growing pig[J].J Anim.Sci., 73: 3000.是什么意思_Kerr B J, Easter R A. 1995.Effect of feeding reduced protein, amino acids - supplemented diets on nitrogen and energy balance in growing pig[J].J Anim.Sci., 73: 3000.在线翻译_英语_读音_用法_例句