Effect of Different Dietary Protein Levels on Growth and Reproductive Characteristics of Artemia franciscana Vinh Chau

  • Dương Thị Mỹ Hận
  • Nguyễn Văn Hòa
  • Nguyễn Thị Ngọc Anh

Abstract

      This study was conducted to evaluate the effect of dietary protein levels in formulated feeds on survival, growth and reproductive characteristics of Artemia franciscana Vinh Chau in laboratory conditions. Experiment consisted of 7 feeding treatments including of commercial shrimp feed No. 0 (control feed) and 6 formulated feeds containing 20, 25, 30, 35, 40 and 45% protein. The experimental process was divided into two phases (1) Communal culture, from day 0 until Artemia reaches sexual maturity to determine survival and growth. (2) Individual culture,Artemia couples were reared in 50-ml Falcon tubes to record their reproductive characteristics and life span. After 14 days of culture, survival of Artemia was not affected by the feeding treatments, varying in the range of 87.2-95.4%; and the total length of Artemia attainedbetween 7.00 and 8.04mm, of which the treatments from 25% to 35% protein had significantly higher values (P > 0.05) compared to other feeding treatments. The lifespan of Artemia females was similar among feeding treatments (44.6-48.6 days). The reproductive period, total brood number and total offspring per Artemia female in the 30 and 35% protein treatments were significantly higher (P > 0.05) than the control, 20% and 45% protein treatments. These results indicated that formulated feed containing 30 to 35% protein could be suitable feed for growth and reproductive performance of Artemia franciscana.

điểm /   đánh giá
Published
2017-05-15
Section
ANIMAL AND AQUACULTURE SCIENCE, VETERYNARY