Histological and morphometric study of the skin appendages of local breed sheep ovis ovis

  • Maha Abdul-Hadi Abdul-Rida Department of Anatomy and histology, College of Veterinary Medicine, University of Al-Qadisiyah, Iraq
  • Nijah H.A. M Department of Anatomy and histology, College of Veterinary Medicine, University of Al-Qadisiyah, Iraq
  • Adnan W.A. B. Department of Histology, College of Medicine, University of Al-Qadisiyah, Iraq

Abstract

       The aim of this study is provide  histological and morphometric  data information to the skin appendages of the local breed sheep regarding to the individual variation in different animal species to use in another sciences. The study carried out on ten healthy ram skin and the samples were taken during autumn season from fourth different anatomical sites (ventral ear surfaces, neck, middle dorsum, tail.). The study revealed that there were a number of skin appendages including( wool follicles and skin glands Sebaceous and sweat glands), two types of wool follicles were observed in the dermis (reticular layer) of the skin of local breed sheep in the form of primary and secondary wool follicles, the wool follicles in sheep were considered as a compound type in which there were more than one wool fiber emerged from one pore on the skin surface. The follicles was arranged as groups consist mainly of three follicles (Trio), in addition to (Dio) and (Mono) arrangement, in this study we noticed the greater diameter of the primary and secondary wool follicles in the neck region and the deeper primary wool follicles present in neck region ,while the deeper secondary wool follicles present in middle dorsum. In respect to the sebaceous glands, the present results indicate that they attached with the both types of wool follicles in which they opened at the upper part of the wool follicles via short duct  the larger sebaceous gland found in neck region all the sweat glands of the skin of sheep were of Apocrine type, these glands which have large secretory parts and narrow duct were accompanied the primary wool follicle but the bigger sweat gland present in middle dorsum.

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Published
2018-12-30