There are appreciable differences
in the thickness of the hair in the cat coats and
for example the primary hair is thickest one and have tapering end
with a fine tip in them. The thin hair is the secondary
hair and the ratio of secondary to the primary hair in dorsal
region is 10:1, where as in regions located ventrally,
this ratio gets changed to 24:1, respectively.
The coat in a classic cat species
has more secondary hair, in general. The cat coat color solely depends
many factors including nutrition, genes etc. The
mean hair growth of primary hair in cats is 295 micrometer
per day. The growth rate of secondary hair observed is 260
micrometer per day. Even the scrotum of cat species
has full hair development and this feature may not be seen in other
species of mammals.