Neurometry and Neurocraniometry of the Nigerian Local Dog (Canis lupus familiaris)

Igado, O. O.

doi:10.21608/jva.2011.45310

Cited by 15 publications

(20 citation statements)

References 2 publications

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“…The lacrimal length and frontal length were comparable to that of the domestic dogs, while it was almost two times smaller and 1.5 times smaller than in the crabeating fox, respectively [21]. The orbital index in the female South African Painted Dog was 91.021 ± 2.08% and was higher than the orbital index in female 80.35 ± 9.102% and males 81.57 ± 4.295% Nigerian local dogs [55]. The orbital index in the crab-eating fox and the mongrel mesocephalic domestic dog did not take gender into account and amounted to 91.08% and 97.54%, respectively.…”

Section: The Bony Orbitmentioning

confidence: 98%

Anatomical and morphometric evaluation of the orbit, eye tunics, eyelids and orbital glands of the captive females of the South African painted dog (Lycaon pictus pictus Temminck, 1820) (Caniformia: Canidae)

Paszta

Klećkowska‐Nawrot

Goździewska‐Harłajczuk

2021

PLoS ONE

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In this study, we present the first data concerning the anatomical, morphometrical, histological and histochemical study of the orbit, eye tunics, eyelids and orbital glands in South African Painted Dogs (Lycaon pictus pictus). The study was performed using eyeball morphometry, analysis of the bony orbit including its morphometry, macroscopic study, morphometry, histological examination of the eye tunics and chosen accessory organs of the eye and histochemical analysis. The orbit was funnel shaped and was open-type. There was a single ethmoid opening for the ethmoid nerve on the orbital lamina. The pupil was round, while the ciliary body occupied a relatively wide zone. The iris was brown and retina had a pigmented area. The cellular tapetum lucidum was semi-circular and milky and was composed of 14–17 layers of tapetal cells arranged in a bricklike structure. In the lower eyelid, there was a single conjunctival lymph nodule aggregate. One or two additional large conjunctval folds were observed within the posterior surface of the upper eyelids. The superficial gland of the third eyelid had a serous nature. The third eyelid was T-shaped and was composed of hyaline tissue. Two to three conjunctival lymph nodul aggregates were present within the bulbar conjunctiva of the third eyelid. The lacrimal gland produced a sero-mucous secretion. A detailed anatomic analysis of the eye area in the captive South African Painted Dogs females showed the similarities (especially in the histological examination of the eyetunics and orbital glands) as well as the differences between the Painted dog and the other representatives of Canidae. The differences included the shape and size od the orbita with comparison to the domestic dog. Such differences in the orbit measurements are most likely associated with the skull type, which are defined in relation to domestic dogs. The presented results significantly expand the existing knowledge on comparative anatomy in the orbit, eye and chosen accessory organs in wild Canidae.

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Section: The Bony Orbitmentioning

confidence: 98%

Anatomical and morphometric evaluation of the orbit, eye tunics, eyelids and orbital glands of the captive females of the South African painted dog (Lycaon pictus pictus Temminck, 1820) (Caniformia: Canidae)

Paszta

Klećkowska‐Nawrot

Goździewska‐Harłajczuk

2021

PLoS ONE

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“…The following morphometric parameters of the skull were determined as earlier reported by Brehm et al (1985); Igado (2001); Onar et al (2001); Endo et al (2002); Al-Sagair & ElMougy (2002).…”

Section: Morphometric Parameters and Craniometric Indicesmentioning

confidence: 99%

The Morphometrics and Typology of the Skull in the Ghanaian Local Dog of Non-Descript Breed (Canis lupus familiaris)

et al. 2020

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“…Some dog breeds present a male-biased sexual dimorphism in the skull. However, skull sexual dimorphism has still been less researched although many studies have been done on different aspects of the skulls of different dog breeds around the globe [6][7][8][9][10][11][12]. On the other hand, the Kangal dog, also known as Karabaş ("Blackhead"), Sivas Çoban Köpeği (the shepherd dog of Sivas), or Anatolian Shepherd dog, is a large and massive dog breed in Turkey, originally found in the Central Anatolian provincial regions of Sivas, Tokat, and Yozgat.…”

Section: Introductionmentioning

confidence: 99%

Cranial size and shape sexual dimorphism in the Kangal dog from Turkey

Casanova¹,

Siddiq²,

Onar³

2020

Turk J Vet Anim Sci

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This study has so far been the first attempt to characterize and quantify skull sexual variation in Kangal dog, by means of geometric morphometric techniques. A sample of 16 adult Kangal crania has been analyzed with this purpose. To obtain a full image of morphological pattern, digital pictures were taken from the ventral, left lateral, and dorsal sides of each skull, and a total of 16, 15, and 16 landmarks respectively were obtained on each image. Skull size and shape differed significantly in all aspects among different sexes, male skulls being bigger. Shape differences were observed mainly on zygomatic arch and muzzle on the dorsal view, pterygoid bone and articular surface to mandibular condyle in the lateral aspect, and cranial width and maxillary bone on the ventral view. Although the sample was comparatively small in number, being the first geometric morphometric approach applied on the Kangal dog, the obtained results will add vital information particularly to understand the cranial shape sexual dimorphism of this unique dog breed in Turkey.

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Neurometry and Neurocraniometry of the Nigerian Local Dog (Canis lupus familiaris)

Cited by 15 publications

References 2 publications

Anatomical and morphometric evaluation of the orbit, eye tunics, eyelids and orbital glands of the captive females of the South African painted dog (Lycaon pictus pictus Temminck, 1820) (Caniformia: Canidae)

Anatomical and morphometric evaluation of the orbit, eye tunics, eyelids and orbital glands of the captive females of the South African painted dog (Lycaon pictus pictus Temminck, 1820) (Caniformia: Canidae)

The Morphometrics and Typology of the Skull in the Ghanaian Local Dog of Non-Descript Breed (Canis lupus familiaris)

Cranial size and shape sexual dimorphism in the Kangal dog from Turkey

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