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- Title
Effects of replacement of fish meal with fermented cottonseed meal on growth performance, body composition and haemolymph indexes of Pacific white shrimp, Litopenaeus vannamei Boone, 1931.
- Authors
Sun, Hong; Tang, Jiang‐wu; Yao, Xiao‐hong; Wu, Yi‐fei; Wang, Xin; Liu, Yong
- Abstract
A feeding trial was performed for 28 days to evaluate the effects of replacement of fish meal ( FM) with fermented cottonseed meal ( FCM) on growth, body composition and haemolymph indexes of juvenile Litopenaeus vannamei. Four isonitrogenous and isoenergetic diets were formulated by using FCM (96.4, 206, 317 and 417 g kg−1) to substitute 25%, 50%, 75% and 100% of FM in a control diet respectively. Each diet was randomly allotted to four tanks with 20 shrimp per tank. The feeding trail was conducted in an indoor flow-through aquaculture system. Shrimp fed diets containing 317 and 417 g kg−1 of FCM obtained lower ( P < 0.05) final weight, weight gain, specific growth ratio, protein efficiency ratio as well as a higher ( P < 0.05) feed conversion ratio compared with shrimp fed the control diet. The body ash content decreased ( P < 0.05) in shrimp fed the diet with complete replacement of FM than those in other treatments. Moreover, increasing the dietary inclusion of FCM linearly raised ( P < 0.05) the concentrations of total gossypol, (−) and (+) gossypol enantiomers in the whole shrimp body. No difference ( P > 0.05) was observed in haematological parameters among the treatments. The results suggest that up to 50% of FM can be replaced by FCM without adverse effects on growth and feed utilization of L. vannamei.
- Subjects
COTTONSEED meal; FISH meal; ENANTIOMERS
- Publication
Aquaculture Research, 2016, Vol 47, Issue 8, p2623
- ISSN
1355-557X
- Publication type
Article
- DOI
10.1111/are.12711