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在水温为(28±1)℃时,研究在饲料中添加叶黄素与维生素E或磷脂混合物对体重(5.08±0.88)g血鹦鹉鱼(Cichla_soma_ synspilum♀×Cichla_soma_ citrinellum♂)生长、着色、抗氧化及肝功能指标影响。血鹦鹉鱼放养于(150 cm×150 cm×150 cm)水泥池中,每池20尾,投喂基础饲料为对照,在基础饲料中添加叶黄素按0.1%(A_1)、0.3%(A_2)、0.5%(A_3)比例分别与磷脂0.1%(a_1)、0.3%(a_2)或维生素E 0.1%(b_1)、0.3%(b_2)用水搅拌均匀的试验饲料30 d。结果表明:A_1a_1组可显著提高血鹦鹉鱼体表亮度(P<0.05),试验组血鹦鹉鱼体表的黄度值均显著高于对照组(P<0.05);A_2b_1组可使肝胰脏和肌肉中类胡萝卜含量显著增加(P<0.05);添加叶黄素混合物组与对照组生长性能无显著差异(P>0.05);A_1b_2和A_2b_1组可使血鹦鹉鱼肝胰脏超氧化物歧化酶(SOD)、过氧化氢酶(CA_T)比活力显著提高(P<0.05),且丙二醛(MDA_)含量与对照组无显著差别(P>0.05);A_1a_1和A_3a_2组使谷草转氨酶(A_ST)和谷丙转氨酶(A_LT)活性保持较低水平,有利于维持血鹦鹉鱼肝功能稳定。
At the water temperature of (28 ± 1) ℃, the effects of the mixture of lutein and vitamin E or phospholipid on the growth, coloration, and antifungal activity of body weight (5.08 ± 0.88) g blood parrot fish (Cichlasoma_synspilum × Cichlasoma_citrinellum♂) Oxidation and liver function indicators. Blood parrot fish were stocked in a (150 cm × 150 cm × 150 cm) cement pool with 20 basins per pond. The basal diet was used as a control. Lutein was added to the basal diet supplemented with 0.1% (A_1), 0.3% (A_2 ) And 0.5% (A_3) were agitated with 0.1% (a_1) phospholipid, 0.3% (a_2) or 0.1% (b_1) of vitamin E and 0.3% (b_2) respectively for 30 days. The results showed that: A_1a_1 group can significantly improve the body brightness of blood parrot fish (P <0.05), yellow parietal blood test group were significantly higher than the control group (P <0.05); A_2b_1 group can make the liver and pancreas (P <0.05). There was no significant difference in the growth performance between the lutein mixture group and the control group (P> 0.05). In the A_1b_2 and A_2b_1 groups, the levels of superoxide dismutase (P <0.05), and the content of malondialdehyde (MDA) did not differ significantly from that in the control group (P> 0.05). The A_1a_1 and A_3a_2 groups had higher activities of aspartate aminotransferase A_ST) and alanine aminotransferase (A_LT) activity to maintain a low level, is conducive to maintaining blood parrot fish liver function and stability.