海洋科学Issue(9)：49-53,5.
投喂频率对凡纳滨对虾生长、消化酶和免疫酶活力以及氮收支的影响
The effect of feeding frequency on growth, digestive enzymes, immune enzyme and N budget of Litopenaeus vannamei
摘要
Abstract
Effect of feeding frequency on growth characteristics, digestive enzymes, immune enzyme and nitrogen balance of Litopenaeus vannamei was studied. The results indicated that feeding frequency of Litopenaeus van-namei was significantly effected by survival rate, growth rate, feed coefficient, the nitrogen balance and part of immune enzymes activity. The groups which were fed 5 times per day had higher survival rate, weight increasing rate and specific growth rate, and lower feed coefficient. Conic relationships were found between specific growth rate and feeding frequency. The maximum specific growth rate was obtained when they were fed 4.45 times per day. Feeding nitrogen, growth nitrogen and excretion of nitrogen and fecal nitrogen, reached the lowest when 2 times per day, and higher if 5 and 6 times per day. The high feeding frequency group got higher digestive enzymes and im-mune enzymes activity.关键词
投喂频率/消化酶/免疫酶/氮收支/凡纳滨对虾(Litopenaeus vannamei)Key words
feeding frequency/digestive enzymes/immune enzymesration/nitrogen budget/Litopenaeus vannamei分类
农业科技引用本文复制引用
陈文霞,申玉春,李再亮,叶宁..投喂频率对凡纳滨对虾生长、消化酶和免疫酶活力以及氮收支的影响[J].海洋科学,2013,(9):49-53,5.基金项目
广东省自然科学基金资助项目(10152408801000005) （10152408801000005）
广东省科技计划资助项目(2012A020602050、2011B031100012) （2012A020602050、2011B031100012）
广东省海洋渔业科技推广专项(A201201I02、A201201C01) （A201201I02、A201201C01）
