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
4 (2016) Trang: 42-47
Tạp chí: aquaculture report

Traditional snakehead culture in Southeast Asia relies on use of small-size (trash) fish as food, an unsustainable practice.  Following development of weaning methods and testing of formulated feed (FF) in laboratory experiments, we conducted feeding trials of FF vs. trash fish (TF) in experimental ponds at Can Tho University (CTU), followed by similar trials on commercial farms in two provinces in Vietnam.  CTU pond trials consisted of five treatments (in triplicate), in which TF was replaced by FF in increasing percentages: 0 (control), 25, 50, 75, and 100% replacement of TF by FF (i.e., three treatments had mixed TF/FF diets).  Although survival was significantly reduced in the 100% replacement treatment, and growth was significantly reduced in the 75% and 100% replacement treatments, the cost per kg of fish produced was 28-35% less in those high-replacement treatments compared to the 0% replacement treatment.  On-farm trials were then conducted a two farms in An Giang and Dong Thap provinces for 6 months with snakehead fed TF only or FF only.  At both farms, survival (73-80%) was not significantly different, but growth was significantly better on FF diet at both; however, FF-fed fish at the An Giang farm showed significantly higher levels of abnormal development.  Overall production was about twice as high at the An Giang farm as at Dong Thap, but significantly greater production by FF-fed fish vs. TF-fed fish was only seen at Dong Thap.  Sensory evaluation by a tasting panel found no difference in product quality between FF-fed fish, TF-fed fish, and a commercial sample bought in the market.  Economic analysis indicated that profits were higher for FF-fed fish from both farms, although production costs and sales varied greatly, reflecting market differences in the two provinces.

Các bài báo khác
Số 38 (2015) Trang: 101-108
Tải về
Số 26 (2013) Trang: 196-204
Tải về
Số 15a (2010) Trang: 207-213
Tải về
Số 22a (2012) Trang: 261-268
Tải về
Số Thủy sản 2014 (2014) Trang: 310-318
Tải về
Số 11a (2009) Trang: 390-397
Tải về
Số 11a (2009) Trang: 398-405
Tải về
Số 17a (2011) Trang: 50-59
Tải về
Số 03 (2005) Trang: 58-65
Tải về
Tập 55, Số 2 (2019) Trang: 96-103
Tải về
Số 03 (2005) Trang:
Tải về
8 (2018) Trang: 200-205
Tạp chí: International Journal of Scientific and Research Publications
(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
1 (2012) Trang: 1
Tạp chí: IFS 2012
1 (2012) Trang: 1
Tạp chí: IFS 2012

Vietnamese | English

Vui lòng chờ...