Bilateral Asymmetry Favours the Left Hemimandibular Side in Companion Rabbits
Gana Gambo, Baba
Oluwale Samuel, Michael
Olukayode Olopade, James
MetadataShow full item record
Directional asymmetry (DA) appears when the left and right body sides differ consistently from each other. This asymmetry is characterized as a type of natural asymmetry typical of the population's biology, which can be derived both from genetic inheritance, as of the functional importance acquired
by certain features with respect to the environment in which they develop. We report here preliminary findings that for the first time to quantify size asymmetry mandibles of companion rabbits. A total sample of 64 companion rabbits from the same farm were studied by means of geometric morphometric techniques. The mandible morphology was described by a set of 18 landmarks and semil and marks on the lateral aspect. Tests showed paired differences with variations in distributions, demonstrating a DA in favour of left mandibular side. The detected unilaterality could be interpreted as a manifestation of lateralized masticatory activity. This is a first time report to quantify size asymmetry in this species.
Is part ofJournal of Animal Husbandry and Dairy Science, 2018, vol. 2, núm. 3, p. 9-14
Showing items related by title, author, creator and subject.
Parés Casanova, Pere-Miquel (Agricultural Academy of Bulgaria, 2020-05-30)Deviations from expected perfect symmetry on biological forms can occur, and organisms develop several kinds of asymmetries. Among others there are fluctuating asymmetry and directional asymmetry (DA). DA happens whenever ...
Parés Casanova, Pere-Miquel; Kataba, A.; Mwaanga, Edwell S.; Simukoko, H. (Annex publishers, 2014-09-16)This study involved some morphometric parameters of the skull of thirty adult Gwembe Dwarf Goats (15 males and 15 females) without any apparent skeletal disorders. Lower jaws were not included in this study. A total of 43 ...
Geometric morphometrics of the skull of two African rodents, Thryonomys swinderianus and Cricetomys gambianus Samuel, O. M.; Parés Casanova, Pere-Miquel; Nwaogu, I. C.; Olopade, J. O. (Annals of Experimental Biology, 2015-09-01)Greater cane (Thryonomys swinderianus) and African giant pouched rats (Cricetomys gambianus) have sympatric ecological relations and identical body conformation characteristic, and inhabit similar ecological biome and ...