PENGARUH KARBOKSIMETILSELULOSA DALAM PAKAN DENGAN KANDUNGAN PROTEIN DAN KARBOHIDRAT YANG BERBEDA TERHADAP EKSKRESI AMONIA DAN RASIO EFISIENSI PROTEIN UDANG WINDU (Penaeus monodon Fab)

Haryati Haryati; Dody D Trijuno; Marlina Achmad

Haryati Haryati Universitas Hasanuddin
Dody D Trijuno Universitas Hasanuddin
Marlina Achmad Universitas Hasanuddin

Keywords: CMC, amonia excretion, protein-carbohydrates, protein efficiency ratio, tiger prawns

Abstract

The purposes of this study were to evaluate the effect of carboxymethylcellulose (CMC) in diets with different protein and carbohydrate levels on the ammonia excretion and protein efficiency ratio of tiger prawn (Penaeus monodon). The research used factorial with a completely randomized basic design with three replications. The first factor was protein and carbohydrates levels in the diets: 30% protein, 40% carbohydrate (P 30%, C 40%) and 40% protein, 30% carbohydrate (P 40%, C 30%), while the second factor was CMC content in the diets, 0%, 5% and 10%. The treatments gave the same response on the ammonia excretion one hour after feeding. Interaction between treatments of protein-carbohydrate levels and carboxymethyl levels in the diets had a significant effect (p<0.05) on the ammonia excretion and protein efficiency ratio at 2, 3, 4 and 5 hours after feeding. Lowest ammonia excretion 2 hours after feeding was observed in the treatment of P 30%, C 40%, and CMC 10%, but it was not significantly different from the treatment of P30%, C 40%, and CMC 5% but it was significantly different from the other treatments. Ammonia excretion three hours after feeding in the treatment of P 30%, C 40%, and CMC 10% was the lowest and significantly different compared to other treatments. Ammonia excretion four and five hours after feeding was highest in the treatment of P 40%, C 30%, and CMC 5% but it was not different from the treatment of P 30%, C 30%, and CMC 0% but it was significantly different from other treatments. Protein efficiency ratio at the treatment of P 30%, C 40%, and CMC 0% was not significantly different from the treatment of P40%, C30%, and CMC 0% but it was significantly lower from other treatments. Based on the parameters of ammonia excretion and protein efficiency ratio, it was concluded that tiger shrimp can be fed with a diet containing 30% protein, 40% carbohydrates, 10% CMC.