近年来，陕西省长安县水产事业有了长足的发展，从化肥养鱼到颗粒饲料精养；从传统四大家鱼养殖发展到名、特、优、新品种养殖；这个地处西北的小县如今水产经济生机盎然，鱼货市场供应充足，广大渔农的收入也相应有了提高。说到这里，人们很自然地想起二十年来热心水产技术推 In recent years, Chang’an County, Shaanxi Province has made considerable progress in its aquatic products business, ranging from fertilizer and fish farming to pellet feed cultivation. From the traditional development of four major domestic fish farms to the breeding of famous, special, superior and new breeds, this small and medium- Nowadays, the aquatic economy is full of vitality and the supply of fish market is abundant. The incomes of the vast number of fishermen and peasants have also been correspondingly raised. Here, people naturally think of two decades of enthusiastic aquatic technology push