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Title: Effects of temperature change on the innate cellular and humoral immune responses of orange-spotted grouper Epinephelus coioides and its susceptibility to Vibrio alginolyticus
Authors: Ann-Chang Cheng;Shao-An Cheng;Yu-Yuan Chen;Jiann-Chu Chen
Contributors: 國立臺灣海洋大學:水產養殖學系
Keywords: Orange-spotted grouper;Epinephelus coioides;Temperature change;Vibrio alginolyticus challenge;Innate cellular response;Innate humoral response
Date: 2009-05
Issue Date: 2011-10-21T02:18:15Z
Publisher: Fish & Shellfish Immunology
Abstract: Abstract:Orange-spotted grouper Epinephelus coioides held at 27 °C were then further cultured at 19, 27 (control), and 35 °C, and were examined for innate cellular and humoral responses after 3–96 h. The total leucocyte count, respiratory burst, and phagocytic activity significantly decreased 3, 48, and 96 h after fish were transferred to 19 and 35 °C. Both the alternative complement pathway (ACH50) and the lysozyme activity significantly decreased at 3–96 h after fish were transferred to 19 and 35 °C. In another experiment, groupers reared at 27 °C at 34‰ salinity were injected with Vibrio alginolyticus grown in tryptic soy broth (TSB) at a dose of 2.3 × 109 colony-forming units (cfu) fish−1, and then further reared in water temperatures of 19, 27 (control), and 35 °C. The cumulative mortalities of V. alginolyticus-injected fish held in 19 and 35 °C were significantly higher than that of injected fish held in 27 °C. Resistance had decreased after 12 h for the challenged grouper held at 35 °C. All injected fish held in 19 °C had died after 72 h. It was concluded that at 12 h after transfer of grouper from 27 to 19 and 35 °C, immunity was suppressed and resistance against V. alginolyticus had decreased.
Relation: 26(5), pp.768-772
URI: http://ntour.ntou.edu.tw/handle/987654321/26671
Appears in Collections:[水產養殖學系] 期刊論文

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