Some Aspects of the Orbital and Ocular Morphometry of the African Giant Rat (Cricetomys gambianus, Waterhouse)

Olude, M. A.; Olopade, James Olukayode; Igado, O. O.; Mustapha, O. A.; Akinloye, A. K.

doi:10.21608/jva.2011.45161

Cited by 12 publications

(24 citation statements)

References 15 publications

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“…The mean foramen magnum width and height were 1.35 cm and 1.23 cm, respectively. Comparatively, these values in domestic cats were higher than rabbit (Kahvecioghu et al, 2000), mole rat (Özkan, 2007) and African giant rat (Olude et al, 2009) but lower than dog (Janeczek et al, 2008). The foramen magnum index of the domestic cat was 90.72 which was almost similar to that of the mole rat (88.41; (Özkan, 2007) and perkingese dog (93.4; Janeczek et al, 2011) and higher than the rabbit (74.78; Kahvecioghu et al, 2000) and African giant rat (81.42; Olude et al, 2009), where the foramen magna were relatively wide.…”

Section: Discussionmentioning

confidence: 93%

“…Different visualize details of structures relevant to the case at craniometrical parameters were recorded with the help of measuring scale, thread and digital Vernier calipers. The following measurements were made as defined by Olude et al(2009), Simoens et al(1994) and Onar et al (1997) (Figure 1-2). Neurocranial volume (NCV): The volume of the neurocranium was measured by first using Plasticine to block all the foramina of the intact skull.…”

Section: Methodsmentioning

confidence: 99%

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Morphometric investigation of neurocranium in domestic cat (Felis catus)

Uddin

Sarker

Hossain

et al. 2014

Bangl. J. Vet. Med.

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This study was intended to investigate some aspects of the morphometric characteristics of the neurocranium in domestic cat (Felis catus) of Bangladesh. Twenty adult domestic cat including 10 males and 10 female were euthanized using diazepam (@ 20 mg/kg) and their skulls were macerated to give morphometric parameters. Student t-test with level of significance set at 5% (p < 0.05) was used to analyze the obtained values. The mean (mean ± SE) neurocranial volume was 28 ± 0.97 ml, neurocranial length was 6.63 ± 0.77 cm, and the neurocranial height and index were 3.32 ± 0.38 cm and 49.83%, respectively. The mean height and width of the foramen magnum were 1.32 ± 0.09 cm and 1.35 ± 0.08 cm, respectively, while the foramen index was below 100 at 90.72 ± 4.93. Parameters for the foramen magnum index showed significant difference between both sexes at p < 0.05. The foramen magnum showed shape variations and there were multiple hypoglossal foramina in over 80% of the cats. Foramen magnum index was positively correlated with neurocranial volume. The results were discussed in terms of the usage of morphologic and morphometric characteristics of cranium and skulls in several basic and clinical applications in cat such as estimation of the brain density and the use of the cat for cranial pressure experiments. DOI: http://dx.doi.org/10.3329/bjvm.v11i1.17302 Bangl. J. Vet. Med. (2013). 11 (1): 69-73

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Section: Discussionmentioning

confidence: 93%

Section: Methodsmentioning

confidence: 99%

Morphometric investigation of neurocranium in domestic cat (Felis catus)

Uddin

Sarker

Hossain

et al. 2014

Bangl. J. Vet. Med.

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“…The presence of a dorsal notch was observed in both finless porpoise species and classified into two forms, Type A variant and Type B variant. The presence of a dorsal notch in the FM has been previously reported in the African giant rat (Cricetomys gambianu) (Olude et al 2009) and camel (Camelus) (Yahaya et al 2013). The presence of a dorsal notch in the FM is considered as a variation in canine anatomy, arising from incomplete union of the ventromedial part of the supraoccipital bones (Watson et al 1989), resulting in widening of the FM.…”

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confidence: 88%

Morphological analysis of the foramen magnum in finless porpoise (genusNeophocaena) using postmortem computed tomography 3D volume rendered images

Kot

Chan

Yuen

et al. 2018

Marine Mammal Science

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“…Biological indicators (bioindicators) can serve as sensitive and useful tools for assessing environmental health and for determining the extent of pollution, especially heavy metal pollution (Parmar et al, 2016). Rodents have been used as good model animals for environmental monitoring of heavy metal pollution (Olude et al, 2009). The African giant rat is one of such rodents used as animal models for environmental monitoring of heavy metal pollution.…”

mentioning

confidence: 99%

“…The African giant rat is one of such rodents used as animal models for environmental monitoring of heavy metal pollution. Their ubiquitous nature of being found in a variety of habitats ranging from arid areas to temperate areas (Olude et al, 2009), their small body size and the fact that they can be caught easily makes them relaible bioindicators (Usende et al, 2017). These organisms have been widely used for the determination of levels of environmental contamination based on determination of heavy metal concentration in different tissues, organs or the whole body.…”

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confidence: 99%

Tissue and parasite accumulation of heavy metals in the giant rat (<i>Cricetomys gambianus</i>) as bioindicators of heavy metal pollution

Tongo¹,

Ewere²,

Awharitoma³

et al. 2018

Journal of Applied Sciences and Environmental Management

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Heavy metal concentrations in tissues and cestode parasite of the African giant rat collected from staff quarters of the University of Benin, Benin City, Nigeria were determined using Atomic Absorption Spectrophotometry (AAS). Possible human health risk associated with consumption of contaminated rats was also determined using appropriate human intake models. The cestode isolated from the rat was identified as Inermicapsifer guineensis with total infection rate of 100%. The mean concentrations of heavy metals (mg/kg) in liver tissues of the giant rat ranged from 1.82 to 3.98 (Pb), 0.22 to 0.54 (Cd), 22.14 to 45.53 (Zn), 1.87 to 3.37 (Cu) and 1.25 to 3.15 (Co); in heart tissues ranged from 1.39 to 2.01 (Pb), 0.27 to 0.32 (Cd), 23.93 to 53.97 (Zn), 2.17 to 4.66 (Cu) and 1.45 to 2.27 (Co); in kidney tissues ranged from 0.75 to 1.67 (Pb), 0.41 to 0.93 (Cd), 22.77 to 42.14 (Zn), 1.82 to 1.90 (Cu) and 2.05 to 3.08 (Co); in muscle tissues ranged from 1.02 to 1.77 (Pb), 0.24 to 0.31 (Cd), 22.60 to 45.52 (Zn), 1.73 to 2.13 (Cu) and 1.04 to 1.82 (Co) and in parasite tissues ranged from 0.002 to 0.005 (Pb), 0 to 0.001(Cd), 1.19 to 2.63 (Cu) and 0.001 to 0.003 (Co). Mean total concentrations of individual heavy metals in the tissues and parasite of the rat decreased in the order zinc > copper > cobalt > lead > cadmium. Considering the mean concentrations of accumulated heavy metals, the heart and liver were found to be key target organs for heavy metal accumulation. Highly significant positive correlations was observed between heavy metal concentrations in tissues and the parasite (p<0.05, r=0.998), however, bioaccumulation values indicated much higher concentrating capacity of heavy metals in the rat organs than the cestode parasite. Heavy metals are potential risk sources of contamination in the African giant rat (Cricetomys gambianus) and should therefore be priority for management in order to control human health risk through ingestion pathway exposures.

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Some Aspects of the Orbital and Ocular Morphometry of the African Giant Rat (Cricetomys gambianus, Waterhouse)

Abstract: Orbital and Ocular Morphometry of the Giant Rat Olude et al.

Cited by 12 publications

References 15 publications

Morphometric investigation of neurocranium in domestic cat (Felis catus)

Morphometric investigation of neurocranium in domestic cat (Felis catus)

Morphological analysis of the foramen magnum in finless porpoise (genusNeophocaena) using postmortem computed tomography 3D volume rendered images

Tissue and parasite accumulation of heavy metals in the giant rat (<i>Cricetomys gambianus</i>) as bioindicators of heavy metal pollution

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