Lineal discrimination of horses and mules. A sympatric case from Arauca, Colombia
| Autor: | Jannet Bentez-Molano, René Alejandro Crosby-Granados, Arcesio Salamanca-Carreño, Jordi Jordana, Pere M. Parés-Casanova |
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| Rok vydání: | 2020 |
| Předmět: |
morphologic traits
biometrics 040301 veterinary sciences Withers Hybrids Biology Article Girth (geometry) body measurement 0403 veterinary science Perimeter lcsh:Zoology medicine lcsh:QL1-991 hybrids lcsh:Veterinary medicine General Veterinary 0402 animal and dairy science 04 agricultural and veterinary sciences Anatomy Circumference biology.organism_classification discriminant analysis 040201 dairy & animal science Equus Skeleton (computer programming) Skull medicine.anatomical_structure Biometrics Hock lcsh:SF600-1100 Animal Science and Zoology |
| Zdroj: | Repositorio Abierto de la UdL Universitad de Lleida Animals, Vol 10, Iss 679, p 679 (2020) Recercat: Dipósit de la Recerca de Catalunya Varias* (Consorci de Biblioteques Universitáries de Catalunya, Centre de Serveis Científics i Acadèmics de Catalunya) Animals Volume 10 Issue 4 Dipòsit Digital de Documents de la UAB Universitat Autònoma de Barcelona Recercat. Dipósit de la Recerca de Catalunya instname Animals : an Open Access Journal from MDPI |
| DOI: | 10.3390/ani10040679 |
| Popis: | This is the first morphological comparative study between local horses and mules from Arauca, Colombia. It was realized to compare morphological traits between both species by analysing 15 adult mules (7 males and 8 females) and 150 adult horses (137 males and 13 females), with an age interval from 2 to 22 years. Data consisted of 24 different body quantitative traits which can explain the body conformation: thoracic circumference, body length (BL), thoracic depth and width, withers height (WH), sternum height, shoulders width, chest width, forelimb cannon perimeter and length, head length and width, skull length and width, face length and width, ear length and width, loin height, croup height (CrH), width and length, dock height (DoH), and hock height. Heart girth circumference, body length, withers height, croup height, and dock height were the most discriminative traits, showing statistical differences between species. The formula is X = (BL × 0.402) + (WH × 0.323) + (CrH × 0.352) + (DoH × 0.384). A value of X > 184.5 assigns with total certainty that a skeleton belongs to a horse, and if X < 174.0, it is a mule. The proposed formula has a 100% specificity but a 71.4% sensibility for mules and an 84.4% for horses into the rank of 174.0&ndash 184.5. Therefore, results demonstrate that some postcranial anatomical elements of Equus could give enough information for a bone differentiation between horses and mules, at least in animals from the Araucan region, but the main interest is that it reflects the possibility to differentiate morphometrically both species from bone remains when horses and mules were sympatric. |
| Databáze: | OpenAIRE |
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