TAILIEUCHUNG - Effect of dietary protein levels on black carp (Mylopharyngodon piceus) growth performance in semi intensive culture

The trial was completely randomized design in 9 pilots (3 treatments x 3 replicates), the volume of the pilot were 20 m x 30 m x m, all the pilots were set in the same ponds with the stocking density of 2 fish/m2 . Black carp were fed 3 commercial feed twice a day at rate of 3-4% fish body weight per day. | Kim Văn Vạn và Đtg Tạp chí KHOA HỌC & CÔNG NGHỆ 101(01): 81 - 84 EFFECT OF DIETARY PROTEIN LEVELS ON BLACK CARP (MYLOPHARYNGODON PICEUS) GROWTH PERFORMANCE IN SEMI-INTENSIVE CULTURE Kim Van Van, Tran Thi Nang Thu* Hanoi University of Agriculture SUMMARY A trial on semi-intensive culture of black carp (Mylopharyngodon piceus) used commercial pellet feed of 3 protein levels 25, 30 and 35% was conducted for a period of 3 months in practice condition at Dinh Bang Aquacultural Cooperation, Bac Ninh. The trial was completely randomized design in 9 pilots (3 treatments x 3 replicates), the volume of the pilot were 20 m x 30 m x m, all the pilots were set in the same ponds with the stocking density of 2 fish/m2. Black carp were fed 3 commercial feed twice a day at rate of 3-4% fish body weight per day. Survival rate of black carp was very high and reached approximately . The highest and lowest growth performance of black carp was obtained in fish fed with pellets of 35% and 25% protein respectively. The growth rate and feed cost of black carp were significantly different among treatments used feed containing 30% and 35% protein compared to feed containing 25% protein (). The effect of diet protein levels on growth performance, FCR and feed cost of black carp were analyzed 3 times in the period of experimental. The first evaluation was realized after 1 month from the starting (Table 1). The second evaluation was realized after 2 months from the starting (Table 2) and the last evaluation was realized after 3 months from the starting (Table 3). Table 1 shows that in the first month of experiment, the daily weight gain DWG of black carp fed diets at three protein levels were different significantly (P0,05) (Table 2). FCR was higher in fish fed 25% protein diet () and there were no different between 30% and 35% protein diets. The feed cost needed to produce 1kg of fish was expensive of times in fish fed 25% protein diet in compare to fish fed 30% or .

• Sinh học
• Effect of dietary protein levels on black carp
• Dietary protein levels on black carp
• Semi intensive culture
• Commercial feed twice
• Dinh Bang Aquacultural Cooperation