TR
EN
Studies on organogenesis of common carp Cyprinus carpio var. koi with reference to histological perspectives
Öz
The objective of the current study was to investigate the histological characteristics of larval organogenesis in Cyprinus carpio var. koi. The eggs and several developmental stages of C. carpio var. koi larvae were preserved in Bouin's fluid. Histological examinations were conducted daily from the first day after fertilisation (DAF) to the 12th DAF and the 16th, 24th, 32nd, and 40th DAF. Histological examinations of C. carpio var. koi eggs revealed the development of an embryonic disc, followed by the formation of the neural tube and embryonic eyes on the second day after fertilisation (DAF). The just-emerged larvae have distinct eyes and a neural tube that has undergone differentiation into the brain. Following that, an examination was conducted on the development of the digestive system, swim bladder, gills, skin, and fins. The ontogeny developments were categorised into five distinct stages. During larval development, the initial two stages have exhibited variations in their organogenesis. The larvae head was aligned and devoid of the yolk, but their body was connected to the yolk sac and gill arches, which were visible between the 3rd and 5th days after fertilisation (DAF), and their total length range was 4.35-6.83mm. The digestive system had a linear configuration, with an enlargement in both the dorsal and ventral regions of the body on the ninth day after fertilisation (DAF). During the 10th to 17th developmental stages, larvae have a total length range of 11.23-14.35mm. The operculum, gill lamella, and dorsal fin were developed in this stage. Between the 24th and 40th days after fertilisation (DAF), the larvae acquired a fin, a coiled gut, and well-developed accessory glands and their total length was measured between 15.01 and 23.68mm.
Anahtar Kelimeler
Supporting Institution
Karpaga Vinayaga College of Engineering and Technology & The New College
Ethical Statement
The experiments were conducted in accordance with the guidelines and regulations established by the Committee for Control and Supervision of Experiments on Animals (CCSEA), Department of Animal Husbandry and Dairying, Ministry of Fisheries, Animal Husbandry and Dairying, Government of India and the experimental protocol was approved by Institutional Animal Ethical Committee (Karpaga Vinayaga Institute of Medical Sciences and Research Institute, Tamil Nadu, India) (No: 181GO/ERE/S/15/CPCSEA dated 04.12.2018).
Thanks
We would like to the Managements, the Principals of Karpaga Vinayaga College of Engineering and Technology, Chengalpattu – 603308 and The New College, Chennai - 600014 for providing laboratory facilities to complete the work.
References
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Details
Primary Language
English
Subjects
Fish Anatomy
Journal Section
Research Article
Authors
Early Pub Date
December 11, 2024
Publication Date
January 7, 2025
Submission Date
June 17, 2024
Acceptance Date
August 14, 2024
Published in Issue
Year 1970 Volume: 8 Number: 1