南美白对虾养成期管技术要点

• 作 者: 李宝环 张立君
• 机 构: 天津市宁河县畜牧水产局,天津市宁河县畜牧水产局 301500,301500
• 出 处: 渔业致富指南
• 发表日期: 2001年16期
• 关键词: 南美白对虾 饲料 养成期管理 技术要点 幼虾 成虾 生长阶段 正常 食物 蛋白

一、投饵管理1、对饲料的要求:南美白对虾不同生长阶段对食物的要求略有差异。幼虾期要求蛋白质含量较高,应达35%以上;中虾期可相应减少,可控制在20%;成虾期对饵料的蛋白要求高,应提到25%。但总的来说其对饲料的蛋白含量较低,一般在20%-25%都能正常生长。2、投饵量:应根据天气、成活率、残饵量、健康状况、水质环境、脱壳情况、用药情况、生物饵料量来确定,投饵量的多少、投饵时间要因时、因地灵

First, the feeding management 1, the feed requirements: Penaeus vannamei different growth stages of food requirements slightly different. Juvenile shrimp require a higher protein content, should reach 35% or more; in the shrimp period can be reduced, can be controlled at 20%; into the shrimp of the protein requirements of feed, should be mentioned 25%. However, in general, the protein content of the feed is relatively low, normally growing at 20% -25%. 2, the amount of feeding: should be based on the weather, survival rate, the amount of residual bait, health conditions, water quality and environment, shelling, medication, biological bait to determine the amount of feeding the amount of feeding time due to spirit