Takagi, M.; Yonezawa, T.; Haga, S.; Shingu, H.; Kobayashi, Y.; Takahashi, T.; Ohtani, Y.; Obara, Y.; Katoh, K. . (2008). Changes of activity and mRNA expression of urea cycle enzymes in the liver of developing Holstein calves1. Journal of Animal Science, 86(7), 1526–1532.
doi:10.2527/jas.2007-0799