不同投喂时间对加州鲈生长的影响

来源 :江西水产科技 | 被引量 : 0次 | 上传用户:JSLDYY
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以加州鲈为试验对象,研究不同的投喂时间对其生长的影响.试验选用800尾规格约为16.0 g/尾的加州鲈,随机分为两组:对照组和试验组,每组400尾,每个组别分两个平行,每个平行200尾.对照组和试验组的加州鲈每天均饲喂3次鲈鱼饲料,对照组的饲喂时间为上午7:30、上午11:30、下午4:30;试验组的饲喂时间为上午5:30、上午11:30和下午6:30,投喂量为加州鲈停止摄食为止.预试验3 d,正式试验60 d.试验过程每隔10 d随机选取20尾加州鲈进行体重称量并记录,同时也记录其摄食总量.结果显示,试验组的整个试验过程的摄食总量显著高于对照组(P<0.05),高出了约4.12 kg;试验组的加州鲈在30 d的时候重量显著高于对照组(P<0.05),在60 d的时候极显著的高于对照组(P<0.01),说明试验组的饲喂时间能增进加州鲈的采食量,促进加州鲈的生长,可以被广泛应用于加州鲈的养殖生产上面.
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