In 2018, more than 68 billion chickens were produced worldwide,highlighting their significant contribution to protein production for human consumption as well as the relevance of their diseases [1]. The poultry industry invests huge amounts of money in disease prevention, management, and treatment. One of those diseases is avian coccidiosiswhich is an intestinal parasitic disease caused by a protozoan parasite.Coccidiosis is a debilitating chicken disease that costs the world more than £10.4 billion annually [2]. Seven intracellular protozoan species