Morphologic and morphometric study of digestive tract and accessory glands of Cyprinus carpio

Document Type : Full Research Paper

Authors

1 Veterinary Anatomy and Embryology PhD student, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.

2 Department of Basic Sciences, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran

3 Department of Fisheries, Faculty of Animal Science and Fisheries, Sari Agricultural and Natural Resources University Sari, Iran

4 Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran.

5 Faculty of Veterinary Medicine, Islamic Azad University, Karaj, Iran.

Abstract

Aquaculture of the carps is important economically and common carps play an important role in this field. Since no thorough studies have been undertaken regarding the digestive tract and accessory glands of common carps, studying the morphologic and morphometric aspects of these structures is of great value. For this purpose, 30 female common carps with the average weight of 3.5 kilograms were bought from a private fish culture center and after the topographic study of the digestive tract, liver, pancreas and morphometric study of the digestive tract, the needed samples were taken and put in 10% formalin solution. The next step was precise macroscopic evaluation of the digestive tract with loop. For the purpose of measuring the diameters of lumens and thickness of digestive tract’s wall, a digital caliper was used. The results were analyzed with SPSS 16 software using Pair sample T. The topographic studies showed significant differences between carps and other species. A sphincter like narrowing between the esophagus and the intestine was observed. The inner surface of the intestine was network like which was irregular in cloaca. The results showed that the diameter of the digestive tract changes significantly from the esophagus to the end (p<0.05). As in other species of carps, the intestines can be generally divided into two parts. The study also indicated that the liver consists of two main lobes of right and left that are associated with pancreas. Change in the diet can lead to structural change or sometimes length change in the fish digestive tract. The results of this study therefore, can be used as the basic anatomical knowledge in this species.

Keywords

References

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History

  • Receive Date: 23 July 2013
  • Revise Date: 22 December 2013
  • Accept Date: 21 April 2014

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