Anatomical studies on the African grasscutter (<i>Thryonomys swinderianus</i>), a key component of the minilivestock industry in Nigeria

Ibe, C. S.; Ogbonnaya, Obioma; Ikpegbu, Ekele; Ani, N. V.

doi:10.1002/ar.25049

Cited by 2 publications

(3 citation statements)

References 45 publications

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“…Furthermore, the sample size may be a limitation of the present study. However, a compilation of anatomical studies on the African grasscutter by Ibe et al (2023) revealed that the rodent was nearly homogenous in morphotype. Moreover, the wide range of body weight in both juvenile and adult subjects in the present study infers that a higher sample size may not yield strikingly different values.…”

Section: Discussionmentioning

confidence: 99%

“…Results of this study will serve as normal radiologic reference values of cardiac mensuration in the African grasscutter, necessary for the diagnosis of cardiovascular anomalies in the rodent. This is necessary as this large wild rodent, the fourth largest in the world, is currently bred and domesticated as an integral component of the mini-livestock industry in Nigeria and elsewhere (Ibe et al, 2023). Literature has already documented reports of clinical signs of heart failure which occurred sporadically in captive colonies of African grasscutters derived from in-bred male and female litter mates (Rahman et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

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Radiologic indices of cardiac mensuration in the African grasscutter (Thryonomys swinderianus)

2024

Veterinaria

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This research aimed to establish reference radiographic indices for future cardio-thoracic appraisals in the African grasscutter. Twenty healthy animals consisting of equal number of juveniles and adults were used. Forty thoracic projections consisting of dorsoventral (DV), ventrodorsal (VD), right lateral (RtL) and left lateral (LeL) views were acquired. The evaluated parameters included thoracic and cardiac diameters on the DV/VD radiographs, and cardiac long and short axes on the RtL/LeL radiographs. Cardiac indices generated were cardiothoracic ratio (CTR), vertebral heart score (VHS) and cardiac axis ratio (CAR). The reference values of CTR on VD and DV were 0.52 ± 0.02 and 0.50 ± 0.02, respectively. The difference was not significant (P > 0.05). The mean radiographic values of CTR for juvenile and adults on DV were 0.48 ± 0.04 and 0.52 ±.0.01, respectively. The reference values of VHS on RtL and LeL were 8.70 ± 0.23 and 8.60 ± 0.21, respectively. The difference was not significant (P > 0.05). The mean values of VHS for juveniles and adults on RtL were 8.20 ± 0.30 and 9.20 ± 0.12, respectively. The difference was not significant (P > 0.05). These indices are relevant in future diagnosis of cardiac diseases in the African grasscutter.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Radiologic indices of cardiac mensuration in the African grasscutter (Thryonomys swinderianus)

2024

Veterinaria

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“…It has also been demonstrated in the testis of other rodents like the pine vole and mouse (Czykier et al (2000). The present global demographic upheaval is exerting pressure on the supply of animal protein, so that several rodent species have become source of food in Nigeria, especially among the rural populace (Ibe et al, 2023). The African striped ground squirrel is not an exception, and may become endangered in the nearest future.…”

Section: Introductionmentioning

confidence: 99%

Immunolocalization of Desmin, Vimentin and S-100 proteins in testis and epididymis of African striped ground squirrel (Xerus erythropus)

2023

JoSVAS

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The aim of the study was to immunolocalize desmin, vimentin and S-100 proteins in the testes and epididymis of African striped ground squirrel (Xerus erythropus) and establish their spatial distribution in the two organs. Formalin fixed-paraffin-embedded sections of the testis and epididymis obtained from ten apparently healthy adult male African striped ground squirrels were processed routinely for immunohistochemistry, using primary antibodies specific to desmin, vimentin and S-100. S-100The results showed that desmin reacted intensely in the myoid cells of the seminiferous tubules and smooth muscle cells of the epididymal ducts. It showed a moderate positive immunoreaction in the interstitial cells of Leydig, and the epididymal inter-ductal loose connective tissue. However, there was no immunoreaction of desmin in the spermatogonia or any other spermatogenic cell of the seminiferous tubule. Vimentin reacted intensely in the Leydig cells and spermatogonia. It showed moderate positive reaction in the myoid cells and the epididymal inter-ductal loose connective tissue. There was no immunoreaction of vimentin in the other spermatogenic cells (other than the spermatogonia). The S-100 proteins expressed a mild positive immunoreaction at the interstitial cells of Leydig, but negative immunoreaction in all other parts of testis and epididymis. Also, there was intense immunoreaction of desmin and vimentin and moderate immunoreaction of S-100 in the vascular endothelium in the testis and epididymis. In conclusion, the spatial distribution of desmin, vimentin and S-100 proteins in the testes and epididymis in the African striped ground squirrel showed some similarities and contrast with other mammals, giving insight into the functions of the proteins in these organs of the rodent.

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Anatomical studies on the African grasscutter (Thryonomys swinderianus), a key component of the minilivestock industry in Nigeria

Cited by 2 publications

References 45 publications

Radiologic indices of cardiac mensuration in the African grasscutter (Thryonomys swinderianus)

Radiologic indices of cardiac mensuration in the African grasscutter (Thryonomys swinderianus)

Immunolocalization of Desmin, Vimentin and S-100 proteins in testis and epididymis of African striped ground squirrel (Xerus erythropus)

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