Pelvis shape analysis with geometric morphometry in crossbreed cats

Manuta, Nicoleta; Gündemir, Ozan; YALIN, Ebru ERAVCI; Karabağlı, Murat; Uçmak, Zeynep Günay; Dal, Gamze Evkuran; Gürbüz, İftar

doi:10.1111/ahe.12919

Cited by 9 publications

(8 citation statements)

References 28 publications

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“…Similar results were found in dogs, mirroring those observed in horses. Additionally, it was reported that the entrance to the pelvic cavity in male cats is narrower than in females, and the crista iliaca is located more laterally in males (Manuta et al, 2023). Compared to this study, the narrowing of the pelvic cavity is similar to that in cats in male dogs.…”

Section: Discussionsupporting

confidence: 50%

“…Geometric morphometry has proven to be an effective method for sex determination in cats' pelvises (Manuta et al, 2023). Notably, changes were intense in the linea terminalis of the bone.…”

Section: Discussionmentioning

confidence: 99%

“…Shape analysis of the inlet of the pelvis was performed on 3D models created using CT images. It was determined that the crista iliaca was more lateral in males, the linea terminalis was wider in females and the edge of the acetabulum was higher in males (Manuta et al, 2023).…”

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confidence: 99%

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Shape variations of pelvis in different classes of dogs using geometric morphometry

Özkan,

Avanus,

Manuta

et al. 2024

Anat Histol Embryol

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The ossa coxae are the bones that connect the hindlimbs to the axial skeleton. The right and left os coxae join at the median plane to form the pelvis. In this study, variations in pelvis shape and the asymmetric structure of the pelvis were investigated across different classes of dogs. To achieve this, computed tomography images of the pelvis were obtained from 35 dogs, and 3D modelling of the pelvis was created. Subsequently, 45 landmarks were identified on these models. As a result of the Principal Component Analysis, the shape variation was observed in the pelvic canal and crista iliaca. Directional asymmetry between Principal Component 1 and Principal Component 2 accounted for 33.84% of the total variation, while fluctuating asymmetry contributed 23.66%. Canonical variate analysis revealed that canonical variate (CV) 1 explained 56.56% of the total variation between groups, with CV 2 explained 28.98%. Male dogs exhibited greater pelvic variation than females. Procrustes ANOVA indicated that the greatest proportion of shape variation corresponds to the effect of differences among individuals. While directional asymmetry was statistically significant, fluctuating asymmetry was not. Male dogs displayed more pronounced pelvic shape asymmetry, typically towards the right. Gundogs had a narrower pelvic canal and a wide crista iliaca, whereas terriers had a wider pelvic canal and smaller crista iliaca in shape. Geometric morphometry enables statistical analysis and the derivation of average shapes from samples, making it a vital tool in veterinary anatomy. This study provides insights into pelvic geometric morphometry across different classes of dogs.

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Section: Discussionsupporting

confidence: 50%

“…Geometric morphometry has proven to be an effective method for sex determination in cats' pelvises (Manuta et al, 2023). Notably, changes were intense in the linea terminalis of the bone.…”

Section: Discussionmentioning

confidence: 99%

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Shape variations of pelvis in different classes of dogs using geometric morphometry

Özkan,

Avanus,

Manuta

et al. 2024

Anat Histol Embryol

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“…Geometric morphometric analysis of the skull has become increasingly popular in recent years as a method of studying the morphology of various animal species in the field of veterinary anatomy, providing valuable insights into the relationships between different breeds and populations (Gündemir et al., 2023; Hadžiomerović et al., 2023; Manuta et al., 2023; Parés‐Casanova et al., 2020).…”

Section: Introductionmentioning

confidence: 99%

Skull asymmetry in various sheep breeds: Directional asymmetry and fluctuating asymmetry

Manuta,

Duro,

Szara

et al. 2024

Anat Histol Embryol

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Sheep (Ovis aries) play an important role in the economy of Turkey and the Balkan Peninsula due to their use in farming. As a domesticated species, sheep's morphometric and morphological diversity is likely determined by selective breeding practices rather than geographic distribution. This study aimed to analyse four different sheep breed skulls and reveal skull asymmetry using geometric morphometric methods. For this purpose, 2D images of 52 sheep skulls from different breeds were analysed from the dorsal view of the skull, using 28 landmarks. In the comparison of sheep skulls from the dorsal view, the first principal components for directional asymmetry (DA) and fluctuating asymmetry (FA) were 32.98% and 39.62% of the total variation, respectively. Sharri and Ivesi (Awassi) sheep breeds had the broadest distribution of skull shapes among the breeds, while Lara e Polisit was the most conservative breed. DA was used as a measure of biomechanical constraints, and FA was used as an indicator of environmental stress. Consistent with DA, both differences in centroid size and shape between breeds were statistically significant. No differences between males and females related to asymmetry were revealed. Ivesi sheep revealed the highest fluctuating asymmetry. Geometric morphometric methods proved to be a useful tool for distinguishing differences in the shape of the skull of different sheep breeds and also can be useful for taxonomic purposes.

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“…Accordingly, geometric morphometric analysis is a more useful and appropriate method to explain the shape variations [18]. In recent years, various studies using geometric morphometry method in veterinary anatomy have revealed morphometric differences and shape variations among species, breeds and between sexes [16,18,20,26,36].…”

Section: Introductionmentioning

confidence: 99%

Mandibular Shape Variation in Different Sheep Breeds

Boz,

Manuta,

Jashari

et al. 2023

Preprint

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In countries that have animal husbandry tradition and are developing this, it is impossible not to underline the different local breeds. There is anatomically significant morphological and morphometric variability among these breeds, which differ from one region to another. In this study, geometric morphometry was performed in order to examine the shape variation of the mandible and to reveal the shape variations due to breed diversity in the Bardhoka (Kosova), Țurcana (Romania) and İvesi (Turkey) breed sheep. A total of 40 (10 Bardhoka, 10 Țurcana, 20 İvesi) mandibles were used and were examined shape differences for these three breeds. 2D images of the mandibles were analyzed from the lateral view 9 landmarks were used. Average shape and shape variations of the mandible were obtained for all samples. Mandible showed significant shape variation among sheep breeds and the results were statistically significant. According to the results, among the three sheep breeds in the study, the İvesi breed has the widest mandible shape distribution. While İvesi and Țurcana show a wider distribution in shape variation; The Bardhoka breed expressed a more limited variation. It can be noticed that all three breeds are morphologically and morphometrically different from each other. Bardhoka and İvesi breeds were the most different from each other in this study (p < 0.0001). It is thought that the obtained findings will contribute to future geometric morphometry studies with ruminant mandible samples.

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Pelvis shape analysis with geometric morphometry in crossbreed cats

Cited by 9 publications

References 28 publications

Shape variations of pelvis in different classes of dogs using geometric morphometry

Shape variations of pelvis in different classes of dogs using geometric morphometry

Skull asymmetry in various sheep breeds: Directional asymmetry and fluctuating asymmetry

Mandibular Shape Variation in Different Sheep Breeds

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