Of, relating to, or situated inside the rumen(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "ruminal" in a sentence
"Ruminal fermentation of lichens has an important effect on ruminal absorption of energy rich volatile fatty acids in winter [24] and reindeer that eat lichens are better able to extract nitrogen from dietary vascular plants in winter [25]."
"Effects of seasonal changes in food quality and food intake on the transport of sodium and butyrate across ruminal eupithelium of reindeer."
"However the high CP content of fodder trees leaves may not confer any direct nutritional benefit to the animal unless these proteins are protected against ruminal degradation."