Physiological, metabolic and haematological responses in white shrimp Litopenaeus vannamei (Boone) juveniles fed diets supplemented with astaxanthin acclimated to low-salinity water
Physiological, metabolic and haematological responses in white shrimp Litopenaeus vannamei (Boone) juveniles fed diets supplemented with astaxanthin acclimated to low-salinity water
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DOI：
10.1111/j.1365-2109.2007.01720.x
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发表时间：
2007-05-14
影响因子：
2
通讯作者：
Licea, Alexei
中科院分区：
文献类型：
--
作者：
Flores, Maricela;Diaz, Fernando;Licea, Alexei
研究了饲料中添加0、40、80和150 mg/kg的虾青素对凡纳滨对虾（Litopenaeus vannamei）在低盐度（3 g L-1）环境中的生长、存活、蜕皮频率、代谢调节能力（OC）以及部分代谢和血液学指标的影响。添加80 mg kg（-1）的虾青素可改善对虾的生长、存活和蜕皮频率。最低的OC也表现在虾饲料中的虾青素在80毫克kg（-1）。饲料中添加80 mg/kg虾青素显著提高了对虾血淋巴中葡萄糖、乳酸、血蓝蛋白和血细胞总数的含量。在此基础上，建议在饲料中添加80 mg/kg的虾青素。在低盐度水中养殖的凡纳滨对虾。
The effects of dietary astaxanthin supplemented at 0, 40, 80 or 150 mg astaxanthin kg(-1) on growth, survival, moult frequency, osmoregulatory capacity (OC) and selected metabolic and haematological variables in Litopenaeus vannamei acclimated to low-salinity water (3 g L-1) were evaluated. Supplemented astaxanthin at 80 mg kg(-1) improved growth, survival and moult frequency in shrimp. The lowest OC was also exhibited in shrimp fed with dietary astaxanthin at 80 mg kg(-1). Shrimp haemolymph concentrations of glucose, lactate, haemocyanin and total haemocyte count were all significantly enhanced by feeding the diet supplemented with 80 mg astaxanthin kg(-1) compared with shrimp fed with the other diets. On the basis of these results, dietary astaxanthin supplementation of 80 mg kg(-1) is recommended for juvenile L. vannamei cultured in low-salinity water.