2.2. Histological analysis
Samples of 1 cm2 were cut from identical official sampling
portions (Official Methods of Analysis, 1965) of the
corresponding dehaired pelts of skins and hides, washed
thoroughly and were fixed in formal saline (prepared by
adding 0.9 g sodium chloride in 100 ml of 10% formaldehyde
solution). Samples were then dehydrated with ethanol
series. After embedding in paraffin block, sections of 6 Ilm
were obtained using microtome and they were stained
using hematoxylin and eosin to examine the histological
features.