한국양식학회지 (Journal of Aquaculture)

한국양식학회 (The Korean Society of Fisheries and Aquatic Science)
권호 표지

양식산 돌돔, Oplegnathus fasciatus 소화관의 형태학적 구조 및 조직화학적 특징

The Morphological Structure and Histochemical Features of the Alimentary Tract in Parrot fish, Oplegnathus fasciatus

  • 김재원 (부경대학교 사료영양연구소) ;
  • 최세민 (부경대학교 사료영양연구) ;
  • 백혜자 (부경대학교 해양생물학) ;
  • 배승철 (부경대학교 사료영양연구소)
  • 발행 : 2004.08.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

돌돔, Oplegnathus fasciatus의 소화관은 식도, 위, 장 및 항문이 일련의 관을 이루고 있고,전체적으로 지방 덩어리가 싸고 있다. 어체 체장에 대한 식도에서 항문까지의 소화관 길이의 비(relative length of gut: RLG)는 일반적인 잡식성 어류와 비슷한 평균 1.78 (n=30)의 값을 가진다. 식도는 근육층이 잘 발달되어 있으며, 점막주름의 상피층은 입방상피 또는 원주상피로 구성되고 상피세포 사이에는 다수의 산성 점액분비세포들이 분포하며, 상피세포의 정단부에서 미세융모의 관찰은 어렵다. 위의 근육층은 외부로부터 종주근, 환상근층으로 구성된다. 위의 점막주름은 규칙적인 형태로서 상피층에는 pit, 상피 및 위선이 아주 잘 발달되어 있으며, 점막상피 세포질의 정단부에서는 영양분 흡수계통의 물질들이 관찰된다. 50∼60개의 유문수를 가지는 돌돔 유문수의 점막상피층에서는 원주형의 상피세포와 중성의 점액분비세포들이 관찰되며, 상피세포의 정단면에는 미세융모가 발달되어 있다. 장의 점막상피층에서는 원주상피세포와 중성과 산성의 점액분비세포들이 관찰되며, 종주근층의 두께가 전장, 중장, 후장으로 갈수록 두꺼워진다. 산성의 점액분비세포의 출현빈도는 중장부에서 가장 발달된 양상을 보이며 후장부로 갈수록 감소하는 경향을 보인다.

Using light microscopy, the digestive tract of the parrot fish, Oplegnathus fasciatus was studied histologically. The tract consists of esophagus, stomach, intestine and fifty or sixty pyloric caecae. Each pyloric caecum is a blind sac of banana shape, and is originated from pyloric end of the stomach. The relative length of gut (RLG), that is length of digestive tract to standard length, is 1.78 (n=30). Esophagus has an undeveloped submucosa and a well developed muscularis mucosae. Its mucosa displays primary and secondary folds lined with a cuboidal or columnar epithelium and numerous acidic mucous secretory cells. The stomach has muscularis, which consists of longitudinal and circular muscular layers; its submucosa and muscularis mucosae are well developed. Only primary folds are present in the stomach. Microvilli are present in the epithelial layer. The stomach has a well-developed gastric gland and relatively more secretory granules. Mucosal epithelium of the pyloric caeca is composed of neutral mucous secretory cells and columnar epithelium with developed microvilli in the apical portion. Using the morphological and histological features, the intestine may be divided into anterior, mid and posterior parts. It has an advanced striated border and abundant acidic mucous secretory cells and some neutral mucous secretory cells. The mid intestine has more abundant acidic mucous secretory cells than the anterior and posterior parts. A thick longitudinal muscle is formed in the intestine and its thickness is progressively increased towards the posterior end.

키워드

참고문헌

  1. Quart. J. Microscop. Sci. v.90 On the functional morphology of the alimentary tract of some fish in relation to differences in their feeding habits: anatomy and histology Al-Hussaini, A.H.
  2. J. Morph. v.190 Histological and cytological structure of the gastrointestinal tract of the luderick, Girella tricuspidata(Pisces, Kyphosidae), in relation to diet Anderson, T.A. https://doi.org/10.1002/jmor.1051900110
  3. J. Fish Biol. v.30 A study of the histology and morphology of the digestive tract of the sea-bream, Sparus aurata Cataldi, E.;S. Cataudella;G. Monaco;A. Rossi;L. Tancioni https://doi.org/10.1111/j.1095-8649.1987.tb05740.x
  4. Califor. Fish and Game v.75 Enteric septicemia of channel catfish in California Chen, M.F.;M.E. Kumlin
  5. Kor. J. Ichthyol. v.10 Biological study on the increment of survival rate during early life cycle in the rockfish, Sebastes schlegeli (Teleostei: Scorpaenidae). III. Ultrastructure of the adult digestive tract Chin, P.;J.S. Lee;Y. K. Shin;H.G. Kim
  6. The fishes of Korea Chung, M.K.
  7. J. Fish Biol. v.18 Light and electron microscopic studies on the absorptive cells of the intestine, caeca and rectum of the adult rainbow trout, Salmo gairdneri Rich Ezeasor, D.N.;W.M. Stokoe https://doi.org/10.1111/j.1095-8649.1981.tb03794.x
  8. J. Fish Biol. v.47 Histological effects of cyanide, stress and starvation on the intestinal mucosa of Pomacentrus coelestis, a marine aquarium fish species Hall, K.C.;D.R. Bellwood
  9. J. Mar. Biol. Ass. U.K. v.72 Microscopy of the absorptive cells and gut associated lympoid tissue of the flounder, Platichthys flesus Jenkins, P.G.;A.L. Pulsford;J.E. Harris
  10. J. Sci., Pusan National Uni. v.37 Histochemical properties of mucosubstances on the intestinal mucose cells in the teleosts Jo, U.B.;B.S. Kim;I.J. Chai;S.Y. Back;I.S. Shin
  11. Advances in Marine Biology The alimentary canal and digestion in teleosts Kapoor, B.G.;H. Smit;I.A. Verighina;F.S. Russell(ed.)
  12. Comparative anatomy of the vertebrates Kent, G.C.
  13. J. Korean Fish. Soc. v.32 no.5 Morphology and histology of the digestive tract of the black sea bream, Acanthopagrus schlegeli Lee, J.S.;P. Chin
  14. J. Morph. v.152 Structure and carbohydrate histochemistry of the intestine in ten teleostean species Reifel, C.W.;A.A. Travill https://doi.org/10.1002/jmor.1051520303
  15. J. Morp. v.158 Structure and carbohydrate histochemistry of the stomach in eight species of teleosts Reifel, C.W.;A.A. Travill https://doi.org/10.1002/jmor.1051580203
  16. J. Morp. v.162 Structure and carbohydrate histochemisty of the intestine in ten teleostean species Reifel, C.W.;A.A. Travill https://doi.org/10.1002/jmor.1051620305
  17. Am. J. Anat. v.146 Comparative histochemistry of gastrointestinal mucosubstances Sheahan, D.G.;H.R. Jervis https://doi.org/10.1002/aja.1001460202
  18. Fish physiology Digestion and nutrition Takeuchi, T.;Itazawa, Y.(ed.);I. Hanyu(ed.)