Histology of the Skin in an Iranian Native Breed of Sheep at Different Ages
Journal Title: Journal of Veterinary Advances - Year 2012, Vol 2, Issue 5
Abstract
Skin samples were collected from neonatal, young, young adult and old adult age groups. In each age group, six animals were utilized. Tissues were collected from eight regions namely belly, neck, leg, rump, flank, forearm, shoulder and hip and were fixed in 10 percent buffered formaldehyde and stained with hematoxylineosin and special stains. The general histological features of Bakhtiari sheep skins were similar to many other breeds stated in literature; however there were also some differences. There were no glands in the epidermis and lipid depositions on its surface. All hairs of the various skin regions surrounded by associated structures such as the sweat and sebaceous glands and arrector pili muscles located only in papillary layer of the dermis. The most common number of the secondary follicles in compound follicles was 4. The histology of various skin regions showed no significant differences by sex in all the age groups. By age increasing, all the various structures of different skin regions were larger and well organized. The size and number of secretory units of the sweat and sebaceous glands were also increased. Secretory caps of sweat glands observed only in the skin of older adult sheep.
Authors and Affiliations
B. Mobini
Keywords
Related Articles
- EP ID EP98818
- DOI -
- Views 120
- Downloads 0
Assessment of Heavy Metal Residues in Hides of Goats Singed with Tyres, and the Effect of Boiling on the Heavy Metal Concentrations in the Hides
Tyres are reported to contain toxic materials which could pose health threats to humans. However, some butchers in Ghana singe carcasses of small ruminants with scrap car tyres. This study was therefore conducted to dete...
A Study on Camel Trypanosomosis in Jijiga Zone, Eastern Ethiopia
A cross-sectional study was conducted from October 2008 to June 2009 with the objective of estimating the prevalence of camel trypanosomosis (surra) and identifying the species of trypanosome involved in Jijiga Zone. The...
The in Vivo Effect of Oselatmivir against Highly Pathogenic Avian Influenza Virus (H5N1) Isolated from Egypt
Highly pathogenic avian influenza is still a major problem in poultry sector and house hold chickens in Egypt. This study was directed to detect and characterize the AIVs circulating among chickens flocks in our region (...
Genetic and Environmental Variation in Reproductive and Lactational Performance of Holstein Cattle
Effect of calving interval on 305 day milk yield for first three lactations was studied in order to increase efficiency of selection schemes and to more efficiently manage Holstein cows that have been raised on small far...
Economic Values for Resistance to Helminthosis and Newcastle Disease in Indigenous Chicken in the Tropics
The economic values for resistance to helminthosis and Newcastle Disease (ND) in indigenous chicken were estimated relative to egg number (EN), average daily gain (ADG, g) and live weight at 21 weeks (LW, g) using select...