The Carcass Quality of Pangassius hypopthalmus under Different Diets
Subject Areas : Journal of Animal Biology
مجید
محمدنژاد شموشکی
1
(دانشگاه آزاد اسلامی، واحد بندرگز، گروه شیلات، بندرگز، ایران)
Keywords: carcass quality, Different diets, Pangassius hypopthalmus,
Abstract :
Thequality of fish meat is affected by many factors including nutrition and food consumption. In this research, carcass quality of Pangassius hypopthalmus, with diet of Biomar, calf heart, Gammarus, Artemia, and Tubifex was studied. This study was counducted for 8 weeks and five treatments: treatment 1: Biomar, treatment 2: Calf heart, treatment 3: Gammarus, treatment 4: Artemia, treatment 5: Tubifex. The 450 fish with average weight of 0.63 g and average length of 3.79 cm was conducted in 5 groups and were cultured for 8 weeks. Amount of food required according to the weight of the biomass and 10 % of body weight four times a day in 8:00, 12:00, 16:00 and 20:00 h. Physico-chemical parameters such as oxygen, hardness, pH, temperature were at saturation, dh 350, 7.5 - 8 and 29 andplusmn; 2 0C, respectively. To measure various factors including crude protein, crude fat and ash by semi-automatic and automatic machines soxhlet and electric furnace (temprature of 55 0C for 6 hours) were used. The results showed that the quality of fish carcasses that percentage of carcass moisture and ash, there is a significant difference between treatments (P andlt; 0.05).