Histology and Histomorphometry of Kidney on Domestic Chicken ( Gallus gallus domesticus ) During Pre and Post Hatch

Abstract

The purpose of this study was to determine the renal histology and histomorphometry of domestic chickens (Gallus galus domesticus) before and after hatching. The study involved in four treatment groups namely incubation period of 7 days (K1), 14 days (K2), and 20 days (K3), 7 days after hatching (K4) with six replications each. The results showed that the histological structure of kidney of domestic chicken in the incubation period of 7, 14, and 20 days and 7 days after hatching had a nephron consisted of glomerulus, Bowman's capsule, proximal convoluted tubule, and distal convoluted tubule. During the 7 th day incubation, the kidney of the chicken embryo was in the mesonephros phase. At the age of 14 and 20 days of the incubation the kidney of chicken embryo was in the metanephros phase. Post hatch on the 7 th day, cells that function as macrophages (namely mesangial cell) were found in endothelial cells and basal lamina of glomerular capillaries. Histomorphometry of glomerulus, Bowman's capsule, proximal convoluted tubule and distal convoluted tubule during the 14 th and 20 th days of incubation and on the 7 th day after hatches did not show any significant difference (p<0.05). It can be concluded that the incubation period affects the histological structure of the renal cortex of domestic chicken embryos.