T. A. Currier, Bohnert, D. W., Falck, S. J., and Bartle, S. J.,
“Daily and alternate day supplementation of urea or biuret to ruminants consuming low-quality forage: I. Effects on cow performance and the efficiency of nitrogen use in wethers1,2”,
Journal of Animal Science, vol. 823579437680808037163355826816795377406318747915777476772938191642231115312, no. 5, pp. 1508 - 1517, 2004.
T. A. Currier, Bohnert, D. W., Falck, S. J., Schauer, C. S., and Bartle, S. J.,
“Daily and alternate-day supplementation of urea or biuret to ruminants consuming low-quality forage: II. Effects on site of digestion and microbial efficiency in steers1,2”,
Journal of Animal Science, vol. 8279767680808022126733755582826879774069185469157774757645677381777829165669695966, no. 5, pp. 1518 - 1527, 2004.
D. W. Bohnert, Schauer, C. S., Falck, S. J., and Delcurto, T.,
“Influence of rumen protein degradability and supplementation frequency on steers consuming low-quality forage: II. Ruminal fermentation characteristics”,
Journal of Animal Science, vol. 11855, no. 11, pp. 2978 - 2988, 2002.