Survival, growth, sexual maturity and tissue histamine accumulation of the mysis, Neomysis awatschensis and N. japonica Nakazawa, fed histamine supplemented diets

Yang, Xiaozhen, Wang, Jinfeng, Fan, Peng, Zhao, Liulan, Cheng, Yongxu, Wu, Xugan, and Zeng, Chaoshu (2010) Survival, growth, sexual maturity and tissue histamine accumulation of the mysis, Neomysis awatschensis and N. japonica Nakazawa, fed histamine supplemented diets. Aquaculture, 302 (3-4). pp. 256-260.

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Estuaries are often subjected to intensive aquaculture activities. Finfish and crustacean culture frequently involve the use of trash fish, which can contain high amounts of histamine. This has the potential to be a major ecological concern since this trash fish often becomes a feed source for naturally occurring small aquatic animals, such as mysis. The present study evaluated the effects of dietary histamine supplementation on survival, growth, sexual maturity and tissue accumulation of two estuarine mysis, Neomysis awatschensis and N. japonica Nakazawa. Both N. awatschensis and N. japonica Nakazawa were fed specially formulated diets containing 0 (control), 1, 2 and 4 g/kg supplemented histamine (5 replicates per treatment; 110 neonates per replicate) from the time they became capable of effectively feeding on formulated diets (10 and 17 day-post-hatch for N. awatschensis and N. japonica Nakazawa, respectively). The feeding experiment continued until the mysis reached sexual maturity. Our current findings indicate that dietary histamine had negative effects on both mysis species although their sensitivity to histamine appeared to be species-specific. Results showed that survival was significantly lower for N. awatschensis fed diet containing 4 g/kg supplemented histamine (56.8%) when compared to that of the control (78.3%), while for N. japonica Nakazawa, survival was significantly lower in both 2 (52.1%) and 4 g/kg (51.5%) histamine treatments than in the control group (74.3%) (pb0.05). Histamine containing diets also significantly impacted body length of sexual matured N. japonica Nakazawa, however, no significant differences on either bodyweight or lengthwere detected for N. awatschensis (pN0.05). It generally took longer for both males and females of the two mysis species to reach sexual maturity when they were fed diets containing higher levels of histamine and the differences were often significant (pb0.05). Compared to the control, the whole tissue histamine concentration increased significantly for N. japonica Nakazawa fed diets containing 2 and 4 g/kg supplemented histamine (pb0.05), however, no significant differences in tissue histamine levels were found among all treatments for N. awatschensis. These results suggest that the consumption of stale aquaculture feeds containing histamine could significantly impact naturally existing aquatic animals that play an important role in the marine food web and ecosystem.

Item ID: 11110
Item Type: Article (Research - C1)
ISSN: 1873-5622
Keywords: dietary histamine concentration; Neomysis awatschensis; Neomysis japonica Nakazawa; survival; sexual maturity; tissue histamine levels
Date Deposited: 06 Aug 2010 03:28
FoR Codes: 07 AGRICULTURAL AND VETERINARY SCIENCES > 0704 Fisheries Sciences > 070401 Aquaculture @ 80%
06 BIOLOGICAL SCIENCES > 0608 Zoology > 060809 Vertebrate Biology @ 20%
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830199 Fisheries - Aquaculture not elsewhere classified @ 80%
97 EXPANDING KNOWLEDGE > 970106 Expanding Knowledge in the Biological Sciences @ 20%
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