Abstract: The invention reffers to an equipment for collecting and analyzing ruminal fluid and urine, to may possible the diagnosis of ruminants' diseases, as well as the corresponding treatment and prevention. The equipment was designed with the purpose of collecting, in an easy manner, ruminal fluid and urine, to the end of a fast diagnosis be attained and inclusively performing the detection of the cattle's subclinical diseases directly in the field conditions. The equipment is easy and safe to employ, and facilitates the ruminal fluid applying from a healthy animal to a sick one, as well as the provision of other fluids and drugs directly to the rumen. The equipment consists of the following instruments: a) A tube with metallic head for collecting and applying the fluid to adult bovines. b) A tube with metallic head for collecting and applying ruminal fluid to calves and to small ruminants. c) A double metallic pump for collecting and applying ruminal fluid and other fluids. d) A 5.