Question

In poultry, coccidiosis is caused by

• A. Protozoan
• B. Fungus
• C. Helminth parasite
• D. Virus

Answer 1

The correct option is A Protozoan

Poultry
Poultry refers to the domesticated birds used for food or their eggs. Examples include chickens, turkeys, ducks, guinea fowls etc.

Coccidiosis
Coccidiosis is a disease of the intestinal tract of poultry caused by protozoan parasites of the genus $Eimeria$. The common symptoms include droopiness, loss of appetite, pale combs, bloody diarrhoea, dehydration, and death.

Virus
Viruses are obligate intracellular parasites. They use the host cell machinery for multiplication.

Fungus
They are multicellular, achlorophyllous, saprophytic organisms depending on the dead and decaying organisms.

Helminths
Helminths are parasitic worms present in the phylum Platyhelminthes (flukes and tapeworms) and Aschelminthes (roundworms).

Protozoan
Protozoans are single celled organisms present in the kingdom Protista. Examples include $Amoeba,Paramoecium$ etc.

Final answer
(D) Protozoan