Study on Dietary Protein Metabolic Rule of Chinese Holstein Heifer during 300-350 kg Body Weight
GAO Yan-xia，YU Zhi， CAO Yu-feng，LI Qiu-feng，LI Jian-guo
ACTA VETERINARIA ET ZOOTECHNICA SINICA . 2014, (8): 1295 -1301 .  DOI: 10.11843/j.issn.0366-6964.2014.08.013