Effects of a Compound Nutrient Powder on Growth Performance and Amino Acid Content of Zebrafish
Objective:To study the effects of"maternal compound nutrition powder"on growth performance and amino acid content of zebrafish.Method:Wild type 2-month-old AB strain zebrafish were selected and divided into 5 treatment groups(complex nutrient powder concentration were 1.0 mg·mL-1,2.0 mg·mL-1,4.0 mg·mL-1,8.0 mg·mL-1,16.0 mg·mL-1)and negative group were administered twice a day to determine the maximum tolerated concentration(MTC).Three concentration gradient groups(1/4 MTC,1/2 MTC and MTC),positive group and negative group were designed,and the data in terms of weight gain rate,specific growth rate and amino acid content were compared by using zebrafish model.Result:The maximum tolerance concentration of compound nutrition powder to normal zebrafish was 1.0 mg·mL-1.When the concentrations were 0.50 mg·mL-1 and 1.00 mg·mL-1,the weight gain rate and specific growth rate of 2-month-old zebrafish were significantly increased.The contents of total amino acid and essential amino acid of zebrafish were significantly increased by adding compound nutrition powder.Conclusion:The compound nutrition powder can significantly improve the growth performance and amino acid content of zebrafish.
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