Li et al., 2000. Can. J. Anim. Sci. 80: 105-112 Document reference Li, B. T. ; Okine, E. K. ; Christopherson, R. J., 2000. Effect of vasoactive intestinal polypeptide infusion on feed intake, digesta flow and nutrient digestion in sheep with access to feed for limited time.. Can. J. Anim. Sci., 80: 105-112Web https://doi.org/10.4141/A99-051Citation key Li et al., 2000