期刊论文

中文

水产学报

1000-0615

2023

47

10

70-81

10.11964/jfc.20221013750

Major Special Project of Hunan Province (2017NK1030)

本校为第一机构

为研究投喂策略对牛蛙蝌蚪生长发育的影响,建立科学的投喂标准,实验分别设置了 4 种投喂频率(1、2、3 和 4 次/d)与 4 个投喂水平(4%、6%、8%和 10%)饲养牛蛙蝌蚪,以探究牛蛙蝌蚪合适的投喂策略.投喂频率实验表明,投喂 3 次/d或 4 次/d的牛蛙蝌蚪在实验周期内的变态率显著高于投喂 1 次/d或 2 次/d的牛蛙蝌蚪,且投喂 3 次/d的牛蛙蝌蚪增重率最大.变态率与投喂量的比值(MFR)随投喂频率增加而上升,2、3 或 4 次/d显著高于 1 次/d.投喂频率对已变态牛蛙蝌蚪的肝脏组织结构及肠道蛋白酶、脂肪酶、淀粉酶活性无显著影响.投喂水产实验结果显示,实验周期内牛蛙蝌蚪变态率随投喂水平增加而上升,且 8%与 ...

Bullfrog (Lithobates catesbeiana) tadpole culture technology is still in a vulnerable stage, and metamorphosis rate is an important index of L. catesbeiana tadpole culture. Traditional empirical feeding strategy may lead to insufficient or excessive feeding of L. catesbeiana tadpoles, affecting the digestion and absorption of nutrients and the development of internal organs. Eventually, it leads to slow growth and development, light weight after metamorphosis, poor immunity and it is easy to corrupt water body and cause other problems. The feed...