Effects of Ammonia on the Growth, Survival and Quality of Tra Catfish (Pangasianodon hypophthalmus) | Chapter 6 | Current Perspectives in Agriculture and Food Science Vol. 6

 Tra catfish (Pangasianodon hypophthalmus) is individual of the most valuable freshwater class and is popularly farmed in Vietnam. Tra catfish is chiefly consumed by exporting to different nations in the world; accordingly, it is necessary to meet the tests for flesh feature of the imported nations. Therefore, the present study proposed to minimize the aggregation of NH3 in striped-catfish civilized ponds to improve the humankind quality of Tra catfish. The study constituted two experiments: (1) determination of the deadly concentration (LC) of NH3 on Tra catfish and (2) investigation of the belongings of NH3 at concentrations (control, safety, LC10, and LC20) on the progress, survival and humankind quality of Tra catfish. These experiments were start following a completely randomized design accompanying 3 replications in 500 L tanks. The size of Tra catfish was about 55 ± 5.8 g/fish. The hotness and pH were controled at 28oC ± 0.2 and 8.0 ± 0.3, respectively. The results revealed that, the safe aggregation, LC10 and LC20-96 h of NH3 on Tra catfish was 0.2, 3.61, and 3.73 mg/L, respectively. The distinguishing growth rates (SGR) of bob at safe concentration (0.18%/era), LC10 (0.12%/day) and LC20 (0.088%/epoch) were significantly inferior that in control (0.56%/era). The survival rates of bait at LC10 (86.7%) and LC20 (71.7%) of ammonia were cut down significantly compared accompanying control and safe aggregation (96.7%). The sensory judgment found that, the situations at the safe aggregation, LC10 and LC20) were affected the flesh kind of the fish. The control accompanying 19.11/20 scores was the best result, while added treatments were at sufficient levels (15.2 – 18.5/20 scores).

Author(s) Details:

Linh Nguyen Thi Truc,
Tra Vinh University, No. 126, Nguyen Thien Thanh Street, Tra Vinh City, Tra Vinh Province 87000, Vietnam.

Hai Thi Thuy Luu,
Tra Vinh University, No. 126, Nguyen Thien Thanh Street, Tra Vinh City, Tra Vinh Province 87000, Vietnam.

Nghia Nguyen Trong,
APC Company Limited, 149/41 Hoang Van Thu Street, An Cu Ward, Ninh Kieu District, Can Tho City, Vietnam.

Nguyen Thi Hong Nhi,
Tra Vinh University, No. 126, Nguyen Thien Thanh Street, Tra Vinh City, Tra Vinh Province 87000, Vietnam.

Truong Quoc Phu,
College of Aquaculture and Fisheries, Can Tho University, 3/2 Street, Can Tho City 900000, Vietnam.

Please see the link here: https://stm.bookpi.org/CPAFS-V6/article/view/12648