Comparison of in vivo and in vitro Dry Matter Digestibility of Mule Deer Forages

P. J. Urness, A. D. Smith, R. K. Watkins
1977 Journal of range management  
Highlight: In vivo digestibility percentages from mule deer (Odocoileus hemionus) digestion-balance trials were usually higher than in vitro determinations obtained from the same experimental forage species. Linear regression analysis suggested a correction Eactor could be applied to in vitro estimates to make them more nearly correspond to in vivo dry matter digestibility values. Forages with in vitro digestibility values below 35% often varied markedly from in vivo estimates. It raises the
more » ... s. It raises the question whether deer consume species lower than this in digestibility given reasonable choiCe .
doi:10.2307/3897752 fatcat:qntngh6qrfgppgbvg2nqimklvq