The @entity5702 ( @entity5702 ), @entity894 ( @entity894 ), duration of DNA synthesis ( @entity1950 ) and cell cycle time (TC) have been calculated for the epidermis of @entity1707 in the age range 4-27 months. The @entity5702 declined progressively from 143.4 +/- 6.5 cells/mm at 4 months to 128.8 +/- 8.3 cells/mm at 15 months, whereafter the values showed little change. There was a small decrease in @entity894 with increasing age, from 7.9 +/- 1.5% at 4 months to 5.9 +/- 1.0% at 27 months. However, the change to housing animals outdoors as compared with indoors had a greater effect on the @entity894 (approximately 10%). Severe weathering in the skin of animals housed outdoors resulted in a very high @entity894 (approximately 20%). Neither @entity1950 or TC varied significantly with age. @entity1950 was within the range 8.8-9.2 hr and TC 127-161 hr. In animals housed outdoors TC was reduced relative to animals housed indoors. The @entity5702 and @entity1950 were not affected by housing conditions. The kinetic parameters investigated in the @entity1707 were similar to those reported for @entity1 .

XXXX epidermis: a cell kinetic study.

@entity1 :: ('9606', 'Species') :: ['man'] @entity1707 :: ('9823', 'Species') :: ['pigs', 'pig'] @entity894 :: ('MESH:C566784', 'Disease') :: ['labelling index', 'LI'] @entity5702 :: ('MESH:D018295', 'Disease') :: ['basal cell density', 'BCD'] @entity1950 :: ('MESH:C536962', 'Disease') :: ['TS']
@entity1707 :: (9823,Species) :: ['Pig']
