Effects of Continuous Light (LD24:0) Modulate the Expression of Lysozyme, Mucin and Peripheral Blood Cells in Rainbow Trout

被引:7
|
作者
Valenzuela, Ariel [1 ]
Rodriguez, Ignacia [1 ]
Schulz, Berta [2 ]
Cortes, Raul [3 ]
Acosta, Jannel [4 ]
Campos, Victor [5 ]
Escobar-Aguirre, Sebastian [6 ]
机构
[1] Univ Concepcion, Fac Ciencias Nat & Oceanog, Dept Oceanog, Lab Piscicultura & Patol Acuat, Concepcion 4030000, Chile
[2] Univ Concepcion, Fac Farm, Dept Farm, Lab Toxicol, Concepcion 4030000, Chile
[3] Univ Concepcion, Lab Aquagest, Concepcion 4030000, Chile
[4] Univ Concepcion, Fac Ciencias Biol, Dept Fisiopatol, Lab Biotecnol & Biofarmacos, Concepcion 4030000, Chile
[5] Univ Concepcion, Fac Ciencias Biol, Dept Microbiol, Concepcion 4030000, Chile
[6] Pontificia Univ Catolica Chile, Fac Agron & Ingn Forestal, Santiago 8940833, Chile
关键词
peripheral blood cells; mucus; photoperiod; SPARUS-AURATA L; IMMUNE-SYSTEM; ONCORHYNCHUS-MYKISS; HEMATOLOGICAL PARAMETERS; PHOTOPERIOD MANIPULATION; ARTIFICIAL PHOTOPERIOD; ENTEROMYXUM-LEEI; ATLANTIC SALMON; SKIN MUCUS; FISH;
D O I
10.3390/fishes7010028
中图分类号
S9 [水产、渔业];
学科分类号
0908 ;
摘要
Continuous photoperiod is extensively used in fish farming, to regulate the reproductive cycle, despite evidence suggesting that artificial photoperiods can act as a stressor and impair the immune system. We evaluated the potential effects of an artificial photoperiod on mucus components: lysozyme and mucin, in juvenile rainbow trout (Oncorhynchus mykiss) after exposure for one month to natural photoperiod (LD12:12) or constant light (LD24:0) artificial photoperiod. For each treatment, we assessed changes in peripheral blood cells (erythrocytes and leukocytes) and skin mucus component concentrations. Our results show a decrease in lysozyme concentration, while mucin levels are increased. Similarly, we find elevated monocytes and polymorphonuclears under constant light photoperiod. These findings suggest that LD24:0 regulates lysozyme, mucin, and leukocytes, implying that artificial photoperiods could be a stressful.
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页数:10
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