The effect of Stabilized Rumen Extract on growth and development of calves. 1. Liveweight gain and efficiency of feed utilization.
D000818:Animals; D001835:Body Weight / Q000187:drug effects; D002417:Cattle / Q000502:physiology*; D004063:Digestion / Q000187:drug effects; D004734:Energy Metabolism; D008297:Male; D012417:Rumen; D014020:Tissue Extracts / Q000494:pharmacology*
D014020:Tissue Extracts