Composition and structure of the skin of dromedary (Camelus dromedaries, L, 1758) young adult from two Algeria populations
Keywords:Algeria, camel, epidermis, Sahraoui, Targui
In the face of climate change, the eco-dromedary seems to adapt to meteorological constraints. This work compares the skin of the forehead, the hump, and the axillary part of two populations of Algerian dromedaries, namely the Sahraoui and Targui. We worked on six young adult dromedaries of two populations and two sexes genders. We removed the skin from the forehead, the hump, and the axillary part; they were fixed in 10% of formalin. After 48 hours of fixation, the different samples were subjected to different stages of histological techniques. Sections were stained with hematoxylin-eosin. After mounting the slides, we proceeded to microscopic observations and calculations of each layer of skin thickness. The different skin layers were similar in all body regions dromedaries for the two populations. By comparing the thickness of the skin layers of two sexes and two populations, we notice that the skin from the axillary part of male Sahraoui dromedary is the thickest with the measures 0.0413±0.0222 cm, 0.9789±0.1397 cm, and 2.8119±0.1266 cm for epidermis, dermis, and hypodermis, respectively. The thinnest skin was found in the forehead of the male Targui dromedary with 0.0494±0.0095 cm, 0.2191±0.0536 cm, and 0.3302±0.0835 cm for epidermis, dermis, and hypodermis, respectively. The thickness variation of the skin parts of dromedary between sexes in the same population and between the populations suggests an implication of the adaptation system of dromedary to climatic conditions.
Abdoun KA, Samara EM, Okab AB, Al-Haidary AA (2012) Regional and circadian variations of sweating rate and body surface temperature in camels (Camelus dromedarius). Animal Science Journal 83:556‑561.
AlAskar H, Alhajeri BH, Almathen F, Alhaddad H (2020) Genetic Diversity and Population Structure of Dromedary Camel-Types. Journal of Heredity, 111:405‑413.
Arda O, Göksügür N, Tüzün Y (2014) Basic histological structure and functions of facial skin. Clinics in Dermatology 32:3‑13.
Babelhadj B, Adamou A, Thorin C, Tekkouk-Zemmouchi F, Benaissa A, Guintard C (2016) Etude ostéo-biométrique comparée des races camelines algérienne Sahraoui et Targui (Caelus dromedarius L, 1758). Revue Méd Vét, 167:77-92.
Benaissa R (1989) Le dromadaire en Algerie. Option Méditerranéennes - Série Séminaire 2:19-28
Belkhirbr A, Faye A (2013) Phenotypic variability of two principal Algerian camels populations (Targuiand Sahraoui). Emirates Journal of Food and Agriculture 25:231.
Benyoucef, M, Bouzegag, B (2006) Résultats d’étude de la qualité de la viande de deux races cameline (targui et sahraoui) à Ouargla et Tamanrasset (Algérie). Annales de l’Institut national agronomique El Harrach 27:37‑53.
Delavaud C, Bengoumi M, Faye B, Levieux D, Grech-Angelini S, Chilliard, Y (2013) Plasma leptin, glucose and non-esterified fatty acid variations in dromedary camels exposed to prolonged periods of underfeeding or dehydration. Comparative Biochemistry and Physiology. Part A, Molecular and Integrative Physiology 166:177‑185.
Delavaud C, Ferlay A, Faulconnier Y, Bocquier F, Kann G, Chilliard Y (2002) Plasma leptin concentration in adult cattle: Effects of breed, adiposity, feeding level, and meal intake. Journal of Animal Science 80:1317‑1328.
Abdallah EB, Khalil FA, Azzam AH, Swelim HH, Hekal Samia A, Kassem ST (2018). Some physiological responses and skin properties of shami goats as affected by salinity under desert conditions. Journal of Environmental Science. Ain Shams 41:151‑171.
Faye B, Ratovonanahary, M (1995) L’élevage des grands camélidés. Analyse des initiatives réalisées en France, 15.
Hekal SA (2014) Histological study of the skin and leather characteristics in two types of Arabian camels (Camelus dromedarius). The Journal of American Science 10:41-48.
Khavkin J, Ellis DAF (2011) Aging Skin: Histology, Physiology, and Pathology. Facial Plastic Surgery Clinics of North America 19:229‑234.
Kolarsick PA, Kolarsick, MA, Goodwin C (2011) Anatomy and physiology of the skin. Journal of the Dermatology Nurses' Association 3:203-213.
Lee DG, Schmidt-Nielsen K (1962) The skin, sweat glands, and hair follicles of the camel (Camelus dromedarius). The Anatomical Record 143:71‑77.
Luna LG, Armed Forces Institute of Pathology (U.S.), Armed Forces Institute of Pathology (U.S.). (1968). Manual of histologic staining methods of the Armed Forces Institute of Pathology. 3rd edn. Blakiston Division, McGraw-Hill. New York.
Meghelli I, Kaouadji Z, Yilmaz O, Cemal İ, Karaca O, Gaouar SBS (2020) Morphometric characterization and estimating body weight of two Algerian camel breeds using morphometric measurements. Tropical Animal Health and Production 52:2505‑2512.
Packham M, Knibbs A, Paxston S (2022) The histology Guide. Faculty of biological sciences. University of Leeds. https://www.histology.leeds.ac.uk/skin/skin_layers.php. Accessed on: January 28, 2022.
Prost-Squarcioni C (2006) Histologie de la peau et des follicules pileux. médecine/sciences 22:131‑137.
Samara EM (2019) Unraveling the relationship between the topographic distribution patterns of skin temperature and perspiration response in dromedary camels. Journal of Thermal Biology 84:311‑315.
Sayed-Ahmed A, Rudas P, Bartha T (2005) Partial cloning and localization of leptin and its receptor in the one-humped camel (Camelus dromedarius). Veterinary Journal 170:264‑267.
Umeri SKWA, Mamoori NAMA (2016) Comparative histological and histochemical study of flank region skin, in camel, cow, and buffalo. Al-Qadisiyah Journal of Veterinary Medicine Sciences 15:102‑107.
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