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: 57
Tạp chí: IFS 2015
Liên kết:

Striped catfish (Pangasianodon hypophthalmus, Sauvage, 1878) is one of the most important exported products of Vietnam. Currently, survival rate of striped catfish during nursery stage is too low. Therefore, one of the most interested issues is to find out technical solutions to improve and enhance the survival rate of fish during nursery stage.The practical experiment was carried out in 9 nursery ponds (pond size from 1.500 m2 to 3.600 m2/pond) with 3 different nursing densities(Treatment I: 600 larvae/m2; Treatment II: 800 larvae/m2 and Treatment III: 1000 larvae/m2) in two months at theCenter for applied science and technology of Caseamex company and Phu Thuan farm of Thuan Hung company. After two months of nursing from larvae to fingerlings in earth ponds, the experimental results indicated that water quality parameters showed in acceptable ranges for the larvae of catfish growth during the sampling  period. The DO concentration in three practical experiments (T. I; T. II; T. III) were 6,78±1,48 mg/L, 6,56±1,47 mg/L and 3,94±4,3 mg/L respectively. The TSS concentration fluctuated between 23±14 - 42±16,1 mg/L. The ammonium (N-NH4+) concentration in three experiments (T. I; T. II; T. III) were 0,39±0,17 mg/L; 0,36±0,17 mg/L and 0,52±0,45 mg/L respectively.  The ammonia (NH3) fluctuated value between 0,024±0,025 mg/L and 0,054±0,053 mg/L. The Phytoplankton composition in larvae nursing ponds was found 68 species, and the densities ranges from75.620-246.592 cell/L in which the species of chlorophyta was dominant group. The zooplankton composition included 48 species in nursing ponds and the densitiesof phytoplankton fluctuated from 4.116- 128.990 inds/L.The analytical results showed that there were four zooplankton groups distribution in digestive tract included rotifera, cladocera, copepoda, and nauplii in which rotifer group was the most importantnatural food for catfish larvae’s in 3 days of the nursing stage. The length and the weight of treatment I of 12,49±1,89cm; 7,25±3,64g/fish and treatment II of 12,3±1,58 cm; 7,17±3,56g/fish were higher than those of treatment III. The survival rates of treatment I of 19% was higher than those of treatment II of 16% and treatment III of 8%.

Các bài báo khác
Số tạp chí (2015) Trang: 41 (OP-28)
Tạp chí: 4th Asian PGPR Conference for Sustainable Agriculture, Daewoo Hotel - Hanoi, Vietnam, May 3-6, 2015
Số tạp chí 11(2015) Trang: 20-28
Tác giả: Vũ Anh Pháp
Tạp chí: HUMAN RESOURCES FOR THE FUTURE OF THE MEKONG DELTA OF VIETNAM, tổ chức tại Đại học Cần Thơ, thời gian 5-11-2015
Số tạp chí (2015) Trang: 40
Tạp chí: Feed and feeding management for healthier aquaculture and profit -Cantho university-20-23 october 2015
Số tạp chí (2015) Trang: 274
Tạp chí: International fisheries symposium Towards sustainability, advanced technology and community enhancement 5th IFS 2015-The Gurney Hotel, Penang, Malaysia-1-4 december 2015
Số tạp chí (2015) Trang: 5-6
Tạp chí: The 9th DEPISA International Conference: Developing Professionalism throuhg Investigate Practice
Số tạp chí (2015) Trang: 102
Tạp chí: 5th International Fisheries Symposium, 1st-4th December 2015, Penang, Malaysia
Số tạp chí (2015) Trang:
Tạp chí: The 7th regional aquafeed forum, feed and feeding management for healthier aquaculture and profits, Can Tho University, 22-23 October 2015
Số tạp chí (2015) Trang: 28
Tạp chí: Feed and feeding management for healthier aquaculture and profits. 22-23/10/2015. Can Tho, Viet Nam
Số tạp chí (2015) Trang: 290
Tạp chí: International fisheries symposium Towards sustainability, advanced technology and community enhancement 5th IFS 2015-The Gurney Hotel, Penang, Malaysia-1-4 december 2015
Số tạp chí (2015) Trang: 325
Tạp chí: IFS 2015. Penang, Malaysia from 1-4/12/2015
Số tạp chí (2015) Trang: 567
Tạp chí: Aquaculture For health people, planet and profit-Jeju Exhibition & Convention Center Jeju, Korea-May 26-30, 2015
Số tạp chí (2015) Trang: 68
Tạp chí: Aquaculture For health people, planet and profit-Jeju Exhibition & Convention Center Jeju, Korea-May 26-30, 2015
Số tạp chí (2015) Trang: 98-102
Tạp chí: International Smart Grid Conference October 12-14, 2015 Gwangju, Korea
Số tạp chí (2015) Trang: 59-60
Tạp chí: International Fisheries Symposium (IFS 2015); Penang, Malaysia; 1-4/12/2015
Số tạp chí (2015) Trang: 17
Tạp chí: The 9th DEPISA International Conference Developing professionalism through Investigating Practice 24th-25th June 2015
Số tạp chí (2015) Trang: 23
Tạp chí: The 9th DEPISA International Conference Developing professionalism through Investigating Practice 24th-25th June 2015
Số tạp chí (2015) Trang: 313
Tạp chí: International Fisheries Symposium (IFS 2015); Penang, Malaysia; 1-4/12/2015
Số tạp chí (2015) Trang: 313
Tạp chí: International Fisheries Symposium (IFS 2015); Penang, Malaysia; 1-4/12/2015
Số tạp chí (2015) Trang: 26
Tạp chí: The 7th regional Aquafeed Forum, Cantho University, 20-23/10/2015


Vietnamese | English






 
 
Vui lòng chờ...