Interrelationship of Photoperiod with Growth Performance and Feeding of Seawater Farmed Rainbow Trout, (Oncorhynchus mykiss)

被引：7
|
作者：
Turker, Ali [1 ]
Yildirim, Onder [1 ]
机构：
[1] Mugla Univ, Fac Fisheries, Dept Aquaculture, TR-48000 Kotekli, Mugla, Turkey
来源：
TURKISH JOURNAL OF FISHERIES AND AQUATIC SCIENCES | 2011年 / 11卷 / 03期
关键词：
Rainbow trout; Oncorhynchus mykiss; juvenile; photoperiod; growth; feeding; sea water; SALMON SALMO-SALAR; ATLANTIC SALMON; SEXUAL-MATURATION; PLASMA MELATONIN; CONTINUOUS LIGHT; SURVIVAL; MANIPULATION; TEMPERATURE; POSTSMOLTS; INTENSITY;
D O I：
10.4194/1303-2712-v11_3_08
中图分类号：
S9 [水产、渔业];
学科分类号：
0908 ;
摘要：
Juvenile of rainbow trout (Oncorhynchus mykiss, weight 27.39 +/- 0.16 g) were reared under four photoperiods (Light/Dark hour) (11L:13D control group; 24L:0D continuous light group; 18L:6D extended light group and 6L:18D short light group) to examine their growth performance and some feeding parameters in sea water conditions. Fish were fed on a commercial diet until satiation for 8 weeks of the trial. Fish exposed to 24L:OD (continuous light group) had a significantly higher daily growth rate, relative growth rate and specific growth rates followed by 18L:6D, 1 1L:13D and 6L:18D photoperiods (P<0.05). The results demonstrated that the growth performance and feed utilization of rainbow trout can be stimulated clearly by using a continuous (24L:0D) or extended light (18L:6D) photoperiods in sea water.
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页码：393 / 397
页数：5
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