Eurasian Journal of Biosciences

Histological and histochemical studies of the stomach in the Iraqi falcon (Falcon berigora)


The study aimed to find out the histological and histochemical structures of the walls of the stomach parts in Iraqi Falcon (Falcon berigora).To conduct this investigation, six healthy birds which obtained from a commercial market in (Al Basra city). the stomach of the falcon is constituted by two chambers: the proventriculus (pars glandularis), the gizzard (ventriculus or pars muscularis). Under the light microscopy There is no papilla on the gastric epithelium surface of the proventricular. Both, the mucous tunic of the proventriculus and of the gizzard present folds lined by simple columnar epithelium. The tunica mucosa of the proventriculus is extensively folded due to the presence of well-developed longitudinal muscle bundles. There is no intermediate zone between the proventriculus and the gizzard. The luminal surface of the ventriculus have cuticle, which is sloughed and shed small fine area (around the pyloric opening) and very thin membrane and highly closely adherent to the lining surface of gizzard. Histochemical study of the proventriculus and ventriculus layers showed positive reaction with PAS, Toldian and Mallory stain.


  • Abumandour, M.M.A., 2014. Histomophological studies on the stomach of Eurasian hobby (Falconinae: Falco subbuteo, Linnaeus 1758) and its relation with its feeding habits. Life Sci.J., 11: 809-819.
  • Akester, A.R., 1986. "Structure of the glandular layer and koilin membrane in the gizzard of the adult domestic fowl (Gallus gallus domesticus)." J. Anat. 147, 1 - 25.
  • Bacha, W. J., L.M., Bacha, 2000. Color atlas of veterinary histology. 2nd ed. . Philadelphia, Lippincott Williams & Wilkins. 318p.
  • Bancroft, J.D. and A. Stevens, 2010. Theory and Practice of Histological Techniques. 2nd Edn., Churchill Livingstone, New York.
  • Banks, W. J. (1993). Applied veterinary histology. 3rd edition. , Mosby year book. 356 - 357p.
  • Calhoun, M. L., 1954. Microscopic anatomy of the digestive system of the chicken, The IOWA. State College Press. Ames, Iowa. 108p.
  • Catroxo, M. H., M. A. Lima, 1997. "Histological aspects of the stomach (proventriculus and gizzard) of the red-capped cardinal (Paroaria gularis gularis, Linnaeus, 1766)." Revista chilena de anatomia V. 15, N.1.
  • Denbow, D. M., 2000. Gastrointestinal anatomy and physiology. In Whittow GC (ed): Sturkie’s Avian Physiology, Academic, San Diego, CA, pp 299- 325.
  • Duke, G.E., 1997. Gastrointestinal physiology and nutrition in wild birds. Proc. Nutr. Soc., 56: 1049-1056.
  • Dyce, K. M., W. O. Sack, 2010. Text book of Veterinary anatomy. fourth edition, W.B. Saunders Company, Philadelphia, London and Toronto.
  • Elizabeth, A. and L. F. Fredric 2001. comparative veterinary histology with clinical correlates, Manson Publishing/ the Veterinary Press. P. 1333-134.
  • Espinola, L. V. and E. A. Galliussi, 1990. "Estudio anátomo-histológico del tracto digestivo de Fulica armillata (Velellot, 1817) Aves (Gruiformes, Rallidae)." Iheringia Sér. Zool. 70, 93-108.
  • Fieri, W. J. 1984. Aspectos anatômicos e histológicos do tubo digestivo da codorna Nothura maculosa maculosa, (Temminck, 1815), São Paulo, 109 pp [(Tese doutor.) Univ. Mackenzie.
  • Glerean, A. and E. Katchburian, 1964. "Estudo histológico e histoquímico da moela de Gallus domesticus." Rev. Fac. Farm. Bioquim. Univ. São Paulo 2, 73-84.
  • Hamdi, H., A.W. El-Ghareeb, M. Zaher and F. AbuAmod, 2013. Anatomical, histological and histochemical adaptations of the avian alimentary canal to their food habits: II-Elanus caeruleus. Int. J. Scient. Eng. Res., 4: 1355-1364.
  • Hassouna, E. M. A., 2001a. Some anatomical and morphometrical studies on the esophagus and stomcah in goose, turkey, sparrow, kestrel, hoopoe, owl and darter. Assiut Vet. Med. J. Vol. 44 No. 88 (21-46)
  • Hodges, R. D. (1974). The histology of the fowl, pp, 47- 64. London, Academic Press INC Ltd.
  • Imaizumi, M. and K. Hama, 1969. "An electron microscopic study on the interstitial cells of the gizzard in the love-bird (Uroloncha domestica)." Z. Zellforch. 97, 351-357.
  • Jain, D. K. (1976). "Histomorphology and proteolytic activity in the gastric apparatus of frugivorous, carnivorous and omnivorous species of birds." Acta. Biol. Acad. Sci. hung. 27, 135-145.
  • Kadhim, K.K., A.B.Z. Zuki, M.M. Noordin, S.M.A. Babjee and M. Zamri-Saad, 2011. Activities of amylase, trypsin and chymotrypsin of pancreas and small intestinal contents in the red jungle fowl and broiler breed. Afr. J. Biotechnol., 10: 108-115.
  • King, A. S. and J. Mclelland, 1975. Outlines of avian anatomy. Baillière Tindall, London.
  • Lima, M. A. I. and W. S. Sasso, 1985. "Histochemical detection of glycoproteins in the gastric epithelia of Columba livia." Acta. Histochem 76, 145-150.
  • Lima, M. A. I., 1979. Estudo topoquímico das mucossubstâncias das estruturas epiteliais do trato gastroentestinal de Columba livia, São Paulo. 52pp.
  • McLelland, J., 1979. Systema Digestorium. In: Baumel, J.J.; King, A.S.; Lucas, A.M.; Breazile, J.E. & Evans, H.E. ed. Nomina Anatomica Avium. London, Academic. Press. 637pp.
  • Menin, E., R. C. David, 1990. "Anatomia funcional do tubo digestivo de Coragyps atratus brasiliensis." Rev. Ceres 37, 398-420.
  • Mina, T., P. Paria, 2011. "Histological study of proventriculus of male adult ostrich." Global Veterinaria 7 (2), 108- 112.
  • Rossi, J. R., S. M. Baraldi-Artoni, 2005. "Morphology of glandular stomach (glandularis) and muscular stomach (muscularis) of the partrigde Rhynchotus rufescens." Ciência Rural, Santa Maria v.35, n.6, p.1319-1324, nov-dez.
  • Selander, U. 1963. "Fine structure of the oxyntic cell in the chicken proventriculus." Acta. Anat. 55, 299-310.
  • Selvan, P.S., S. Ushakumary and G. Ramesh, 2008. Studies on the histochemistry of theproventriculus and gizzard of post-hatch guinea fowl (Numida meleagris). Int. J. Poult. Sci.,7: 1112-1116.
  • Shyla, P., P.A. Ommer and P. Lucy, 1992. Structure and post-natal development of the proventriculus in the duck. Ind. J. Poult. Sci., 27: 10-14.
  • Turk, D. E. 1982. "The anatomy of the avian digestive tract as related to feed utilization. Poultry Science, v.61, p.1225- 1244." Poultry Science 61, 1225- 1244.
  • Vittoria, A. and F. Richetti, 1974. "Prime ricerche istologiche comparative sull’ apparato digerente di alcuni uccelli Atti." Soc. Ital. Sci. Vet. 27, 225-226.
  • Zaher, M., A.W. EL-Ghareeb, H. Hamdi and F.A. Amod, 2012. Anatomical, histological and histochemical adaptations of the avian alimentary canal to their food habits: I-Coturnix coturnix. Life Sci. J., 9: 253-275.


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