投喂频次对凡纳滨对虾行为及免疫功能的影响

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Abstract

The experiment was conducted for 30 days in order to determine the effects of different feeding frequencies (1, 2 and 6 times per day) on behaviors, growth and non-special immunity factors of Litopenaeus vannamei. The specific growth rate, movement time and movement distances increased progressively as feeding frequency increased. In daytime, the movement frequencies in the group fed for 6 times per day were significantly higher than those in other groups (p<0.05).However, at night, the movement frequencies in the group fed for 2 times per day were significantly higher than those in other groups (p<0.05). When feeding 1 time per day, the activities of phenoloxidase (PO), catalase(CAT) and superoxide dismutase (SOD) of the shrimp declined, but malondialdehyde (MDA) level increased. During the experiment, the values of PO, CAT, SOD and MDA of the shrimps fed 2 times per day did not change obviously, but they grew slowly when fed 6 times per day.

Key words： Litopenaeus vannamei Behavior Growth Immune function

Received: 25 February 2010

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	YU He-nan
	LIN Xiao-tao
	XU Zhong-neng
	ZHOU Xiao-zhuang

Cite this article:

YU He-nan,LIN Xiao-tao,XU Zhong-neng, et al. Effects of feeding frequencies on behaviors and immune function of Litopenaeus vannamei (Boone)[J]. , 2010, 29(1): 63-69.

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http://www.ecolsci.com/EN/ OR http://www.ecolsci.com/EN/Y2010/V29/I1/63

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