Intoxication by Cyanide in Pregnant Sows: Prenatal and Postnatal Evaluation

Figure 3

Light photomicrograph of pregnant sows thyroid: ((a) and (c)) animals from control group; ((b) and (d)) animals treated with 6.0 mg/kg of body weight of cyanide from day 21 of pregnancy to 110 term showing enlargement of thyroid follicles (b), thickening of the follicular epithelium (arrow; (d)), and reabsorption vacuoles in colloid (arrowhead; (d)). Magnification: ×4 ((a) and (b)); ×20 ((c) and (d)), HE.