Some aspects of the neurocraniometry of the African giant rat [Cricetomys gambianus Waterhouse]

• Autorzy: Olude M A , Olopade J.O. , Fatola I.O. , Onwuka S.K.
• Języki publikacji: EN

Abstrakty

EN

Sixteen African giant rats (Cricetomys gambianus Waterhouse), consisting of 8 male and 8 female rats, were used to determine neurocranial measurements of the skulls. The mean neurocranial volume was 5.06 ± 0.05 mL, neurocranial length was 3.33 ± 0.08 cm, and the neurocranial height and index were 1.39 ± 0.04 cm and 41.74%, respectively. The mean whole skull length and height were 6.32 ± 0.06 cm and 2.98 ± 0.05 cm, respectively. The skull without the mandible was 1.83 ± 0.02 cm in height, and the skull index was 28.41 ± 0.58. The height of the skull of the African giant was approximately half (47%) of the skull length. The mean height and width of the foramen magnum were 0.78 ± 0.01 cm and 0.96 ± 0.02 cm, respectively, while the foramen index was below 100 at 81.46 ± 1.42. Parameters for the whole skull height and foramen magnum width showed significant difference between both sexes at p < 0.05. The foramen magnum showed shape variations and there were multiple hypoglossal foramina in over 87% of the rats. This study, in conclusion, highlighted the possibility of the estimation of the brain density and the use of the African giant rat for cranial pressure experiments. (Folia Morphol 2009; 68, 4: 224–227)

Słowa kluczowe

EN

skull; morphometry; foramen magnum; cranial pressure; neurocraniometry; African giant rat zob.Gambian pouched rat; Cricetomys gambianus; Gambian pouched rat; African giant pouched rat zob.Gambian pouched rat; Cricetidae; Rodentia

• Wydawca: -
• Czasopismo: Folia Morphologica
• Rocznik: 2009
• Tom: 68
• Numer: 4
• Strony: 224-227
• Opis fizyczny: p.224-227,fig.,ref.

Twórcy

autor

Olude M A

• University of Ibadan, Ibadan, Nigeria

autor

Olopade J.O.

autor

Fatola I.O.

autor

Onwuka S.K.

Bibliografia

• 1. Ajayi S (1977) Field observations on the African giant rat Cricetomys gambianus in Southern Nigeria. East African Wildlife J, 15: 191–198.
• 2. Ajayi S (1977) Live and carcass weights of giant rat Cricetomys gambianus and rabbit Oryctalagus cuniculus. East African Wildlife J, 15: 223–228.
• 3. Bergman RA, Afifi AK, Miyauchi R (1988) Compendium of human anatomical variations. Urban and Schwarzenberg, Baltimore.
• 4. Bhuller A, Sanudo JR, Choi D, Abrahams PH (1998) Intracranial course and relations of the hypoglossal nerve: An anatomic study. Surg Radiol Anat, 20: 109–112.
• 5. DInç G (2001) Macro-anatomical investigations on the skeletons of badger (Meles meles) III Skeleton axiale. Firat Un J Health Sci, 15: 175–178.
• 6. Dubrul EL (1950): Posture, locomotion and the skull in Lagomorpha. Am J Anat, 87: 277–314.
• 7. Dursun NS, Tipirdamaz (1989) Etudes macroanatomiquement sur les os dusquelette du vison (Mustela vison). J Fac Vet Med Univ Selçuk, 5: 13–27.
• 8. Endo H, Hayashi Y, Yamazaki K, Motokawa M, Pei J, Lin L, Chou C, Oshida T (2002) Geographical variation of the mandible size and shape in the wild Pig (Suis scrofa) from Taiwan and Japan. Zool Studies, 41: 452–460.
• 9. Fernandes RM, Antonio VA, Roberto BS, Danielle FS, Gisele LM, Marcio AB, Cristiane FR (2008) Maternal malnutrition during lactation reduces skull growth in weaned rat pups: Experimental and morphometric investigation. Anat Science Intern, 83: 123–130.
• 10. Golalipour MJ, Jahanshaei M and Haidari K (2005) Estimation of cranial capacity in 17–20 years old in South east Caspian sea border (North Iran) Int J Morphol, 23: 301–304.
• 11. Hidaka S, Matsumoto M, Hiji H, Ohsako S, Nishinakagawa H (1998) Morphology and morphometry of skulls of raccoon dogs, Nyctereutes procyonoides and badgers, Meles meles. Vet Med Sci, 60: 161–167.
• 12. Janeczek M, Chroszcz A, Onar V, Pazvant G, Pospieszny N (2008) Morphological analysis of the foramen magnum of dogs from the iron age. Anat Histol Embryol, 37: 359–361.
• 13. Jensen BL, Kreiborg S (1993) Development of the skull in infants with cleidocranial dysplasia. J Craniofacial Genet Dev Biol, 13: 89–97.
• 14. Kahvecioghu KO, Onar V, Alpak H, Pazvant G (2000) The morphometry of the foramen magnum in rabbits and its correlation with craniometric measurements. Folia Veterinaria, 44: 62–69.
• 15. Lindow M (2008) The Landmine-Sniffing rats of the Mozambique. Time Magazine.
• 16. Nayak SB (2008) Unilateral, double hypoglossal nerves leaving the cranial cavity through two hypoglossal foramina: a case report. Neuroanatomy, 7: 6–7.
• 17. Nzalak JO, Ayo JO, Neils JS, Okpara JO, Onyeanusi BI, Ghaji A, Ojo SA (2005) Morphometric studies of the cerebellum and forebrain of the African giant rat (Cricetomys gambianus-Waterhouse). Trop Vet, 23: 87–92.
• 18. Olopade JO, Onwuka SK (2003) A preliminary investigation into some aspects of the craniofacial indices of the red Sokoto (Maradi) goat in Nigeria. Folia Veterinaria, 47: 57–59.
• 19. Olopade JO, Onwuka SK (2005) Some aspects of the Clinical Anatomy of the mandibular and maxillofacial regions of the West African Dwarf Goat in Nigeria. Int J Morphol, 23: 33–36.
• 20. Olopade JO (2006) Morphometric analysis of the skull of three breeds of goats in Nigeria. Ph.D. Thesis, Department of Veterinary Anatomy, University of Ibadan, Nigeria.
• 21. Onar V, Mutus R, Kahvecioglu KO (1997) Morphometric analysis of the foramen magnum in German Shepherd dogs (Alsatians). Ann Anat 179: 563–568.
• 22. Onar V, Ozcan S, Pazvant G (2001) Skull typology of the adult male Kangal dog. Anat Histol Embryol, 30: 41–48.
• 23. Özkan ZE, DInç G, Aydin A (1997) Investigations on the comparative gross anatomy of scapula, clavicula, skeleton brachii and skeleton antebrachii in rabbits (Oryctolagus cuniculus), guinea pigs (Cavia porcellus) and rats (Rattus norvegicus). Firat Un J Health Sci, 11: 171–175.
• 24. Özkan ZE (2005) Macro anatomy of axial skeleton of hedgehog. Ind Vet J, 82: 877–882.
• 25. Özkan ZE (2007) Macro-anatomical investigations on the forelimb skeleton of mole-rat (Spalax leucodon Nordmann). Veterinarski Arhiv, 72: 91–99.
• 26. Shepherd S. (2004) Head trauma. E-medicine.com.
• 27. van Herpen H, Voorhout G (1993) Occipital dysplasia in a Pomeranian dog. Tijdschr Diergeneesk, 118: 327–328.
• 28. Vinogradov BS, Argiropulo AI (1941) Fauna of the U.S.S.R, mammals. New series, no. 29. Zoological Institute of the Academy of Sciences of the U.S.S.R., Moskova, p. 243.
• 29. Yilmaz S, Özkan ZE, Özdemir D (1998) Macro-anatomical investigations on the skeletons of porcupine (Hystrix cristata). I. Ossa membri thoracici. Tr J Vet Anim Sci, 22: 389–392.
• 30. Wysocki J, Kobryn H, Bubrowski M, Kwiatkowski J, Reymond J, Skarzynska B (2004) The morphology of the hypoglossal canal and its size in relation to skull capacity in man and other mammal species. Folia Morphol, 63: 11–17.
• 31. Wysocki J (2008) Topographical anatomy and measurements of selected parameters of the rat temporal bone. Folia Morphol, 67: 111–119.