Osteo-Morphometry in Ouled-Djellal White Arab Sheep: Age-Related Correlations between Mandible, Skull and Body Measurements

Document Type : Research Article

Authors

1 Gestion Santé et Productions Animales Research Laboratory, Institut des Sciences Vétérinaires El-Khroub, Université Constantine 1 Frères Mentouri, Constantine 25000, Algeria.

2 Department of Biological Sciences, Laboratory of Ecosystems Protection in Arid and Semi-Arid Zones, Faculty of Natural and Life Sciences, University of Kasdi Merbah, Ghardaïa road 30000 Ouargla, Algeria & Ecole normale supérieure de Ouargla, Algeria.

3 Institute of Evolutionary Science-Montpellier (ISEM), University of Montpellier, CNRS, EPHE, IRD, Montpellier, France.

4 Comparative Anatomy Unit, National Veterinary School of Nantes, Vet Agro Bio Nantes-Oniris, route de Gâchet, CS 40706, 44307 Nantes cedex 03, France.

10.22067/ijvst.2025.92718.1491

Abstract

The Ouled Djellal White Arab sheep is the predominant breed in the Algerian steppes and high plains, known for its adaptability and meat production. This study examines correlations between mandibular, body, and craniometric measurements in two age groups to establish a reference dataset for archaeozoological applications. Thirty female Ouled Djellal sheep, evenly divided into young adults (2–4 years) and adults (>4 years), were examined. Eight body measurements were recorded pre-slaughter, followed by eight mandibular and sixteen craniometric measurements after bone preparation, with four indices subsequently calculated. Significant correlations were observed between mandibular and body measurements, and between mandibular and craniometric parameters. Correlations were more numerous and stronger in adults (ranging from 0.47 to 0.70) than in young adults (from 0.41 to 0.67). While differences in covariation strength were observed between age groups, some correlations, such as those between thoracic perimeter (TP) and mental foramen length (ML6), and between head length (hL) and aboral height of the ascending branch (MH1) persisted across age groups. Dentition-related measurements correlated more frequently in adults, reflecting skeletal  maturity, whereas variability in young adults indicated ongoing growth. These findings highlight the importance of age considerations in morphometric analysis and provide reference data for estimating body size and cranial dimensions from mandible measurements, contributing to archaeozoological studies of North African ancient specimens.

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1.    Adaouri M. Evaluation des paramétres zootechniques de la nouvelle race ovine en cours de constitution issue d'un croisement génétique alternatif d'amélioration antre Ouled Djellal et D'man [Thèse de Doctorat en Sciences Agronomiques]: Ecole Nationale Supérieure Agronomique, Algérie; 2019.
2.    Feliachi K, Kerboua M, Abdelfettah M, Ouakli K, Selheb F, Boudjakji A. Rapport national sur les ressources génétiques animales: Algérie. MADR; 2003.
3.    Duval M, Sahnouni M, Parés JM, van Der Made J, Abdessadok S, Harichane Z, et al. The Plio-Pleistocene sequence of Oued Boucherit (Algeria): A unique chronologically-constrained archaeological and palaeontological record in North Africa. Quaternary Science Reviews. 2021;271:107-16. Doi:10.1016/j.quascirev.2021.107116. 
4.    Geraads D. Pleistocene Carnivora (Mammalia) from Tighennif (Ternifine), Algeria. Geobios. 2016;49(6):445-58. Doi:10.1016/j.geobios.2016.09.001. 
5.    Merzoug S, Kherbouche F, Sehil N, Chelli R, Hachi S. Faunal analysis of the Neolithic units from the Gueldaman Cave GLD1 (Akbou, Algeria) and the shift in sheep/goat husbandry. Quaternary International. 2016;410:43-9. Doi:10.1016/j.quaint.2015.08.076.
6.    Ami K. Approche ostéo-morphométrique des têtes de la population ovine autochtone [Thèse de Magister en Médecine Vétérinaire]. Algérie Université des Frères Mentouri Constantine 1; 2014.
7.    Guintard C, Tekkouk-Zemmouchi F. Osteo-biometric approach of the Ouled Djellal breed (Ovis aries, L.-Algeria). Revue de Médecine Vétérinaire. 2010;161(11):521-31.
8.    Guintard C, Ridouh R, Thorin C, Tekkouk-Zemmouchi F. Etude ostéométrique des métapodes de chèvres (Capra hircus, L., 1758) d’Algérie: cas de la race autochtone Arabia.  Revue de Médecine Vétérinaire. 2018;169:221-32.
9.    Ridouh R, Tekkouk-Zemmouchi F, Thorin C, Guintard C. Prédiction du sexe à partir d’un échantillon de métacarpes de chèvres (Capra hircus L., 1758) de race Arabia (Algérie): réalisation d’un référentiel pour l’archéozoologie. Revue de Paléobiologie, Genève 2019;38(1):255-65.
10.    Babelhadj B, Adamou A, Thorin C, Tekkouk-Zemmouchi F, Benaissa A, Guintard C. Étude ostéo-biométrique comparée des «races» camelines Algériennes Sahraoui et Targui (Camelus dromedarius L., 1758).  Revue de Médecine Vétérinaire. 2016;167:77-92.
11.    Dib M, Babelhadj B, Benaissa A, Oudini E, Brahimi Z, Tekkouk Zemmouchi F, et al. Osteo-morphometric Approach to the Heads of Dromedaries (Camelus dromedarius, L, 1758): Case of the Algerian Targui Population. Agricultural Science Digest - A Research Journal. 2024;44(2):372-81. Doi:10.18805/ag.DF-590.
12.    Ridouh R. Crâniométrie et ostéométrie des métapodes de la chèvre autochtone [Thèse de Doctorat en Sciences Vétérinaire]: Université des Frères Mentouri Constantine 1, Algérie; 2021.
13.    Shehu SA, Bello A, Sonfada ML, Suleiman HM, Umar AA, Danmaigoro A, et al. Morphometrical study of the mandiblar bone of female Yankasa sheep (Ovis aries Linne). Journal of Anatomy and Physiological Studies. 2018;2(1):001-6.
14.    Özüdoğru Z, Ilgün R, Teke BE. A Morphometric Study on Mandibula of Konya Merino. Uluslararası Tarım ve Yaban Hayatı Bilimleri Dergisi. 2019;5:392-5. Doi:10.24180/ijaws.599005. 
15.    Yılmaz B. İvesi Koyunlarında (Ovis aries) Mandibula’nın Morfometrik İncelemesi. Harran Üniversitesi Veteriner Fakültesi Dergisi. 2020;9(2):189-93. Doi:10.31196/huvfd.813490. 
16.    Guintard C, Fouché S. Osteometric study of osseous heads of sheep (Ovis aries, L.). Revue de Médecine Vétérinaire. 2008;159(12):603-17.
17.    Karimi I, Hadipour M, Nikbakht P, Motamedi S. The lower jawbone of Mehreban sheep: a descriptive morphometric approach. World’s Veterinary Journal. 2011;2:57-60.
18.    Demiraslan Y, Gülbaz F, Özcan S, Dayan MO, Akbulut Y. Morphometric analysis of the mandible of Tuj and Morkaraman sheep. Journal of Veterinary Anatomy. 2014;7(2):75-86. Doi;10.21608/jva.2014.44813. 
19.    Monfared AL. Clinical Anatomy of the Skull of Iranian Native Sheep. Global Veterinaria. 2013;10(3):271-5. Doi:10.5829/idosi.gv.2013.10.3.7253.
20.    Jashari T, Duro S, Gündemir O, Szara T, Ilieski V, Mamuti D, et al. Morphology, morphometry and some aspects of clinical anatomy in the skull and mandible of Sharri sheep. Biologia. 2021;77:423 - 33.Doi:10.1007/s11756-021-00955-y.
21.    Dalga S, Aydın U, Bayram R. Radiological, Morphological and Morphometric Investigation of Mandible in Norduz Sheep. Dicle Üniversitesi Veteriner Fakültesi Dergisi. 2023;16(2):85-90. Doi:10.47027/duvetfd.1334159. 
22.    Karimi I, Onar V, Pazvant G, Hadipour MM, Mazaheri Y. The Cranial Morphometric and Morphologic Characteristics of Mehraban Sheep in Western Iran. Global Veterinaria 2011;6(2):111-7.
23.    Mohamed R, Driscoll M, Mootoo N. Clinical anatomy of the skull of the Barbados Black Belly sheep in Trinidad. Int J Curr Res Med Sci. 2016;2(8):8-19. Doi:10.4322/jms.112017. 
24.    Marzban Abbasabadi B, Hajian O, Rahmati S. Investigating the morphometric characteristics of male and female Zell sheep skulls for sexual dimorphism. Anatomical Sciences Journal. 2020;17(1):13-20.
 
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