黄颡鱼摄饵促进物质的研究

以黄颡鱼(Pseudobargrus fulridraco)为试验对象进行谷氨酸、大蒜素、糖精等10种摄饵促进物质活性的研究。结果用t检验统计分析，这些物质对黄颡鱼的摄饵促进效果是：0．1mol／L蛋氨酸有极显著作用；0．5％甜菜碱有显著作用：0．125％香草香精、0．125％糖精、0．05mol／L蛋氨酸、0．2mol／L谷氨酸、0．05mol／L丙氨酸、0．2mol／L丙氨酸、0．5％大蒜素的作用不显著；而0．25，0．5，1％香草香精、0．5，1％糖精、2．5％甜菜碱、5％大蒜素、0．1mol／L谷氨酸、0．025mol／JL蛋氨酸、0．05mol／L甘氨酸则有抑制摄饵作用。

STUDY ON FOOD ATTRACTANTS FOR PSEUDOARGUS FULRIDRACO

Ten food attractants, including amino acids, sweeteners and vanilla essence at different concentration were added to the feed for Pseudobargus fulridraco. Tha resulting data of the experiment were analyzed by t-test. The feeding attraction activity of the materials studied for this fish appeared as follows: the promoting effect was highly significant for 0.1 mol/L methionine, significant for 0.5% bataine, and non-significant for 0.125% vanilla essence, 0.125% saccharin, 0.05 mol/L methionine; 0.2 mol/L glutamate 0.05 mol/L analine, 0.2 mol/L alanine or 0.5% allitridum; while inhibitive effect was observed in the treatments of 0.25% vanilla essence, 0.5% vanilla essence, 1% vanilla essence, 0.5% accharin, 1% accharin, 2.5% bataine, 5% allitridum, 0.1 mol/L glutamate, 0.025 mol/L analine or 0.05 mol/L glycine.