Histomorphological Changes in the Thyroid Gland of Guinea Fowl (Numida meleagris) Exposed to Different Photoperiod Regimens and Exogenous Melatonin. SJVS [Internet]. 2026 Jan. 13 [cited 2026 Jan. 14];22(4):11-6. Available from: https://saheljvs.org/index.php/saheljvs/article/view/557