Explanation

Hemoglobinuria (presence of hemoglobin in urine due to intravascular hemolysis) is seen in:

Piroplasmosis (Babesiosis): Protozoan parasites destroy RBCs.

Bacillary hemoglobinuria (Caused by Clostridium haemolyticum): Toxins induce hemolysis.

Post-parturient hemoglobinuria (Nutritional): Hypophosphatemia leads to RBC fragility.

Exception

Black quarter (Caused by Clostridium chauvoei):

Primarily causes myonecrosis (muscle damage) and edema, not hemolysis or hemoglobinuria.

Key Point:

Black quarter affects muscles, while the others directly or indirectly cause RBC lysis.