Đăng nhập
 
Tìm kiếm nâng cao
 
Tên bài báo
Tác giả
Năm xuất bản
Tóm tắt
Lĩnh vực
Phân loại
Số tạp chí
 

Bản tin định kỳ
Báo cáo thường niên
Tạp chí khoa học ĐHCT
Tạp chí tiếng anh ĐHCT
Tạp chí trong nước
Tạp chí quốc tế
Kỷ yếu HN trong nước
Kỷ yếu HN quốc tế
Book chapter
Kỷ yếu hội nghị quốc tế 2015
Số tạp chí (2015) Trang: 99
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Liên kết:

In this study, the effects of nitrite on the tolerance and physiological response in knifefish (Chitala ornata), an un-obligated air breathing species were investigated at College of Aquaculture and Fisheries, Can Tho university Can Tho Viet Nam. In previous study, the medium lethal concentration (96h LC50) of nitrite to the knifefish was 7.82mM. Fish (25-35g) was exposed at nitrite concentrations of 0mM, 1mM and 2.5mM (equivalent to 0 ,LC5-96hrs and LC10-96hrs – 5% and 10% of lethal concentration at 96hrs) for 0, 1, 24, 48, 72, 96, 120 and 144 hours with 50 fish/120L of density. In each sampling time, 10 fish in each treatment were taken for blood sampling. Erythrocyte had a significant increase at treatment of 1mM NO2-N, reaching 3.6 millions of cell, while there was a sharp decrease of the erythrocyte number in treatment of 2.5mM, around 2.6 million of cell. Although plasma nitrite increase during exposure, the extracellular nitrite maintained below exposed nitrite levels in water, extracellular nitrate also soared by a number of mM. MetHb increased to 38% at 48h and functional Hb minimalized at 54% of total Hb at that time. Therefore there was no significant effects of nitrite to the increases of metHb and plasma nitrite. However, ion balance was significantly influenced. Plasma chloride decreased from 100 mM to 60 mM while plasma osmolality fell down from 320 mOsm to 230 mOsm, plasma sodium from 130 mM to 94mM, plasma potassium from 8.5 mM to 6.9 mM. The significant changes in ion balance of knifefishare typically different from other fish species. Thus, metHb in fish blood increased at high concentration of nitrite in water which causes bad effects on physiology and health of fish.

Các bài báo khác
Số tạp chí (2015) Trang: 389
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Số tạp chí (2015) Trang: 224
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Số tạp chí (2015) Trang: 225
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Số tạp chí (2015) Trang: 44
Tạp chí: International sympopsium Aquatic products processing-Cleaner production chain for healthier food
Số tạp chí (2015) Trang:
Tạp chí: International Symposium-Aquatic product processing, Can Tho University, 7-9 Dec 2015
Số tạp chí (2015) Trang: 142
Tạp chí: International Fisheries Symposium
Số tạp chí (2015) Trang: 143
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Số tạp chí (2015) Trang: 37
Tạp chí: The 7th regional aquafeed forum. Feed and feeding management for healthier aquaculture and profits. Can Tho University, 20-23 October 2015
Số tạp chí (2015) Trang:
Tạp chí: International Symposium-Aquatic product processing, Can Tho University, 7-9 Dec 2015
Số tạp chí (2015) Trang: 138
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Số tạp chí (2015) Trang: 139
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Số tạp chí (2015) Trang: 141
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Số tạp chí (2015) Trang: 121
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Số tạp chí (2015) Trang: 51
Tạp chí: INTERNATIONAL SYMPOSIUM AQUATIC PRODUCTS PROCESSING: Cleaner Production Chain for Healthier Food, Can Tho University, December 7-9th 2015
Số tạp chí (2015) Trang:
Tạp chí: 7th Regional Aquafeed Forum, Feed and Feeding management for healthier aquaculture and profits, Can Tho University, 22-24 October, 2015
Số tạp chí (2015) Trang: 61
Tạp chí: International Fisheries Symposium Towards sustainability, advanced technology and community enhancement
Số tạp chí (2015) Trang: 79
Tạp chí: The World Association of Lesson Studies (WALS)
Số tạp chí (2015) Trang: 60
Tạp chí: International Symposium Aquatic products processing Cleaner production chain for healthier food
Số tạp chí (2015) Trang: 2-12
Tạp chí: The Rise and Fall programme: Salt water intrusion, Groundwater and Land Subsidence Research in the Mekong Delta, Vietnam
Số tạp chí (2015) Trang: 72-73
Tạp chí: International Symposium of SATREPS-programs on Sustainable Aquatic Bioresources, Tokyo University of Marine Science and Technology, Tokyo, 19-20 December, 2015
Số tạp chí (2015) Trang: 22
Tác giả: Võ Minh Trí
Tạp chí: VEEC, March 16-47, DaNang University of Science and Technology
Số tạp chí (2015) Trang: 26
Tạp chí: iLEC 2015 (international Language and Education Conference), Malaysia, 7-8 October 2015
Số tạp chí (2015) Trang: 39
Tạp chí: Aquatic products processing
Số tạp chí (2015) Trang: 173-199
Tạp chí: Regional Social Sciences Summer University “Tam Đảo Summer School Week” (Đà Lạt, Việt Nam), July 2014
Số tạp chí 01(2015) Trang: 273-276
Tạp chí: International Conference on Solid Waste 2015: Knowledge Transfer for Sustainable Resource Management


Vietnamese | English






 
 
Vui lòng chờ...