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巴西鲷学名小口脂鲤,脂鲤属。是我国从巴西引进的一个淡水养殖新品种。其适应性强,生长速度快,食性广泛,抗病力强,易起捕,肉质细嫩,经济价值高,为一般养殖鱼类价格的2-3倍,具有很大的推广前景。巴西鲷属热水性鱼类,生活在水体的底层。它体侧扁, 体形与鲤、鲫鱼相似,体色银白,尾叉型,体长为体高的 3倍左右,成鱼一般长30 cm,胸、腹、臀鳍为红色,背鳍和尾鳍末端发红,中间在一脂鳍。巴西鲷为杂食性偏植物食性,对水质要求不高,耐低氧。pH值要求6．0- 7．5;临界温度上限39℃,下限为9℃,最佳生长水温为 26℃-30℃．水温低于20℃食欲下降;耐盐范围0‰- 8‰。
Brazilian seabream scientific name small mouth carp, fat carp genus. It is a new breed of freshwater aquaculture that our country introduced from Brazil. Its adaptability, fast growth, wide range of diet, strong disease resistance, easy catching, tender meat, high economic value, as the general breeding fish prices 2-3 times, with great promotion prospects. Brazil seabream is a hot water fish, living in the bottom of the body of water. Its body side flat, body and carp, crucian carp similar body color silver, tail fork body length of about 3 times the body height, adult fish generally 30 cm, chest, abdomen, anal fin red, dorsal fin and caudal fin red, Middle of a fat fin. Brazilian snapper omnivorous partial feeding habits, less demanding on water quality, resistance to hypoxia. pH value of 6.0-7.5; critical temperature upper limit of 39 ℃, lower limit of 9 ℃, the optimum growth temperature is 26 ℃ -30 ℃. Water temperature below 20 ℃ loss of appetite; salt range 0 ‰ - 8 ‰.