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
Bài báo - Tạp chí
3(4) (2016) Trang: 73-82
Tạp chí: Animal review

This study was carried out from February to December 2014 by interviewing 75 farmers who opporate snakehead seed production in An Giang, Dong Thap and Hau Giang provinces, Vietnam. The results showed that the total area for production was 629.01±756.77 m2, whereas the volume for nursing was 582.10±119.81 m3 for pond system and 1,019.56±736.66 m3 for combining pond – hapa system). Each hatchery used 44.26±22.63 pairs of broodstock/breeding cycle and produced whole year. The quantity of seed per cycle of pond system was a half of that figure of other system while seed productivity per m3 was much lower. Sakehead seed was mainly sold to seed traders in the Delta (82.3%). With average production cost of 47.81±16.23 thousand VND/m3, each farm in pond system could reach the total net profit of 49.83±18.74 thousandVND/m3, equivalent to 328 millionVND/year. These corresponding numbers of pond – hapa system were  106.98±86.25; 196.12±87.45 thousand VND/m3, equal to 1.75 billionVND/year. Factors of climate change affecting snakehead seed production involved rainfall change, droughts, water and air temperature increase, salinity instrution which caused  diseases easier (36%), affected seed production in general (31%), bad water quality (10%), .... To reduce the impacts of climate change to production, the snakehead seed production farmers  often changed selling market, suspended production of seeds, used better brookstocks by choosing them more carefully and  a number of other measures.

Các bài báo khác
Số 52 (2017) Trang: 103-112
Tải về
Số 51 (2017) Trang: 64-73
Tải về
Số 42 (2016) Trang: 75-84
Tải về
(2011) Trang:
Tạp chí: International Fisheries Symposium, Permai Hotel, Kuala Terengganu, Malaysia, 03 - 05 November 2011
1 (2012) Trang: 413
Tạp chí: Hội nghị Khoa học trẻ ngành Thủy sản Toàn quốc lần thứ III
 

CTUJoS indexed by Crossref

Vietnamese | English


BC thường niên 2018


Con số ấn tượng (VN | EN)


Bản tin ĐHCT


TCKH tiếng Việt


TCKH tiếng Anh

 
 
Vui lòng chờ...