title: Feed digestibility and utilization by growing guinea pigs in helium-oxygen environments of ambient and 21 atmospheres absolute (ATA).
mesh_terms: D000821:Animal Feed; D000818:Animals; D001274:Atmospheric Pressure; D001835:Body Weight; D004063:Digestion; D018504:Ecological Systems, Closed; D005247:Feeding Behavior; D006168:Guinea Pigs / Q000254:growth & development; D006371:Helium; D008297:Male; D008660:Metabolism; D009584:Nitrogen; D010100:Oxygen; D013312:Stress, Physiological
chemical_list: D006371:Helium; D009584:Nitrogen; D010100:Oxygen