Effects of Supplementing Shrimp Soluble Hydrolyte Extracts on Growth Performance and Digestion of Hoa Lan Ducks
Effects of Supplementing Shrimp Soluble Hydrolyte Extracts on Growth Performance and Digestion of Hoa Lan Ducks
Pham Tan Nha*, Le Thu Thuy
ABSTRACT
A study was carried out aiming to evaluate the utilization capacity of shrimp soluble hydrolyte extracts of Hoa Lan ducks. It was a complete randomized design with 5 treatments corresponding to 5 diets and 3 replications. Ten ducks balancing in sex were used in one experimental unit. The treatment 0 (basic diet, 0%). Treatment 1, 2, 3 and 4 were mixed basic and shrimp soluble hydrolysate with 1%, 2%, 3% and 4%, respectively (DM). The treatments were: SH0, SH1, SH2, SH3 and SH4, respectively. The results shown that daily weight gain (DWG) was lower for the ducks without supplementing shrimp hydrolyte (SH0 treatment) than those mix shrimp hydrolyte (drinking water) and the significantly higher result found in the SH2, SH3 and SH4 treaments (P<0.05). FCR of Ha Lan ducks were better in the SH3 and SH4 treatments (P <0.05). Accumulated Nitrogen (Nr) of SH2, SH3 and SH4 treatments were higest (60.3g/kg, 61.3g/kg and 61.2g/kg, respectively). It was concluded that the treatments supplemented with hydrolyzed shrimp juice at 3% and 4% gave higher results in terms of weight gain and low feed conversion ratio.
Keywords | Hoa Lan duck, Shrimp soluble extracts
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