研究了从健康罗非鱼肠道中筛选出的活力为195 U/ml的淀粉酶高产菌株的耐酸耐高温能力。结果表明,该菌株最高耐受温度为80℃,20 min;在50~60℃时稳定性强,可保持正常生长,维持高菌体量;最适生长pH值为6,在强酸性条件下能存活,并维持缓慢生长。由此表明,该菌株在微生态饲料添加剂生产上具有重要潜在价值。 The acid-fastness and high temperature resistance of amylase-producing strains with a viability of 195 U / ml were selected from healthy intestines of tilapia. The results showed that the highest temperature of this strain was 80 ℃ for 20 min, and its stability was good at 50 ~ 60 ℃, it could maintain its normal growth and maintain high microbial biomass. The optimum pH value was 6, under the condition of strong acidity Can survive and maintain slow growth. This shows that the strain has important potential value in the production of microbial feed additives.