CARI Shyama and Vanaraja are dual-purpose hybrids of poultry, used by the Department of Animal Husbandry (C.G.) to improve the livelihood of tribal peoples. The digestive system plays an important role in productivity, so to explore the gross, histomorphological, and histochemical characteristics of digestive system, the present investigation was undertaken. The experiment was conducted on sixty apparently healthy birds belonging to three different age groups viz. group 1 (day-old chicks), group 2 (8-week-old growers), and group 3 (16-week-old pullets). Tissues collected from these birds were...