"Natural substances" for animal nutrition, 2.

additif aux aliments des animaux aditivos de piensos alcachofa alginate alginates alginatos ammonia ammoniac animal health animal performance artichaut aves de corral bentonita bentonite camellia sinensis carex cerdo chronic course clay minerals enfermedades respiratorias extractos vegetales feed additives feed conversion efficiency globe artichokes granit granite granito horseradish hydrogen sulphide immunity inmunidad liquid manures lisier maladie respiratoire microclima microclimat microclimate minerales de arcilla nicotiana rustica odeur olor plant extracts porcin poultry processus chronique productos derivados de algas pteridophyta purin raifort respiratory diseases rhubarb rhubarbe ruibarbo sanidad animal seaweed products slurry smell sulfuro de hidrogeno swine symphytum volaille