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Effects of dietary medicinal herbs and Bacillus on survival, growth, body composition, and digestive enzyme activity of the white shrimp Litopenaeus vannamei
Yu, M.-C.; Li, Z.-J.; Lin, H.Z.; Wen, G.-H.; Ma, S. (2009). Effects of dietary medicinal herbs and Bacillus on survival, growth, body composition, and digestive enzyme activity of the white shrimp Litopenaeus vannamei. Aquacult. Int. 17(4): 377-384. http://dx.doi.org/10.1007/s10499-008-9209-3
In: Aquaculture International. Springer: London. ISSN 0967-6120; e-ISSN 1573-143X
Peer reviewed article  

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Trefwoorden
    Body composition (biology); Digestion; Enzymen; Groei; Medicinal herbs; Bacillus [WoRMS]; Litopenaeus vannamei (Boone, 1931) [WoRMS]; Marien
Author keywords
    Bacillus; Body composition; Digestive enzyme activity; Growth;Litopenaeus vannamei; Medicinal herbs

Auteurs  Top 
  • Yu, M.-C.
  • Li, Z.-J.
  • Lin, H.Z.
  • Wen, G.-H.
  • Ma, S.

Abstract
    The basal diet (C), with 0.20% medicinal herbs (M) and 0.30% Bacillus (BM1), with 0.10% medicinal herbs and 0.15% Bacillus (BM2), and with 0.30% Bacillus (B), was used to feed white shrimps (Litopenaeus vannamei) (1.91 ± 0.03 g) in order to assess survival, growth, body composition, and digestive enzyme activity. At the end of the feeding trial, survival ranged from 95.83 to 98.33% with no significant difference (> 0.05) among all groups. Growth measured as weight gain was significantly (< 0.05) higher in shrimp fed with BM2, BM1, and M compared to that of C. However, no significant differences were found among B, BM1, and M. In the case of specific growth rate, the shrimp fed with BM1 and BM2 exhibited significantly (< 0.05) higher values than that of C. The contents of body moisture, crude protein, and ash seemed to be unaffected by the feed supplements, though lipid content was found to be significantly (< 0.05) different among the treatments. The shrimp fed with BM1 and BM2 had the lowest and highest lipid contents, respectively. The digestive enzyme activity assessed using shrimp hepatopancreas revealed that the activities of amylase and protease in shrimp fed with BM2 were significantly (< 0.05) higher than those of C at the end of the 2nd and 6th weeks. However, better performance of the specific amylase activity was shown by the shrimp fed with B at the end of the 8th week.

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