Comparison of in vivo and in vitro Dry Matter Digestibility of Mule Deer Forages
Urness PJ, Smith AD, Watkins RK. 1977. Comparison of in vivo and in vitro Dry Matter Digestibility of Mule Deer Forages. Journal of Range Management. 30(2):119-121
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 factor 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 question whether deer consume species lower than this in digestibility given reasonable choice.
- Type
- Journal Article
- Authors
- Urness, P; Smith, A; Watkins, R
- Units
- SODN
- Keywords
- in vitro, In vivo, Mule Deer, Nutrition