The causal organism of mastitis in cattle is? by Sunday | Jul 5 | Agricultural Science WAEC | 0 comments A. fungus B. bacterium C. virus D. protozoan E. worm Correct Answer: Option B – bacterium Users Also Read These:A castrated male cattle is called a?An organism that habours another organism is referred to as?The study of an individual organism or a single…The causal organism of damping-oil disease of okra is a?The causal organism of anthrax in farm animals is known as?