Self-feeding of European sea bass (Dicentrarchus labrax, L.) under laboratory and farming conditions using a string sensor
Self-feeding of European sea bass (Dicentrarchus labrax, L.) under laboratory and farming conditions using a string sensor
复制标题
使用弦传感器在实验室和养殖条件下进行欧洲鲈鱼 (Dicentrarchus labrax, L.) 的自喂食
DOI：
10.1016/j.aquaculture.2003.10.011
复制
发表时间：
2004
期刊：
影响因子：
4.5
通讯作者：
J. Madrid
中科院分区：
文献类型：
--
作者：
V. C. Rubio;M. Vivas;A. Sánchez;F. Sánchez‐Vázquez;D. Covés;G. Dutto;J. Madrid
在本文中，我们描述了一个适应欧洲黑鲈行为的咬拉饲喂系统的性能。该系统是通过鱼的咬和拉来激活的，它会产生一个电信号，触发饲料分配器。实验1设计用于在实验室条件下测试传感器，使用四组（每组4条未受过训练的鱼，NTF）和八组（每组4条鱼，每组1年前训练使用该系统（TF））。实验二在实验室条件下使用16组（中等组）每组48只海鲈鱼，将咬拉触发器（BPT）与筛选悬杆触发器（ST）进行比较。实验三评估了BPT传感器在养殖条件下的性能，每个传感器使用四组1000只海鲈（大组）放在海笼中。与其他传感器相比，BPT传感器的一些优点是：(1)学习周期更短，经验I为11-12天，经验II为1 - 2天，经验III为1天；(2)没有时间限制，使海鲈鱼在夜间进食（实验二占夜间需要量的60%，9月和2月分别占夜间需要量的23%和47%，实验三）；(3)防止鱼、风或浪意外激活；(4)奖励水平设置正确，饲料浪费少；(5)成本低，经久耐用，部件更换方便。这些特点使BPT系统成为海鲈鱼在海笼中自食的有用系统。
In the present paper, we describe the performance of a bite-and-pull feed-demand system adapted to the behavior of European sea bass. The system is activated by the fish biting and pulling on, which generates an electrical signal that triggers the feed distributor. Experiment I was designed to test the sensor under laboratory conditions, using four groups of four naive fish per sensor (non-trained fish, NTF) and eight groups of four fish per sensor (small groups) that had been trained to use the system 1 year earlier (TF). Experiment II compared the bite-and-pull trigger (BPT) with a screened hanging-rod trigger (ST) using 16 groups of 48 sea bass per sensor (medium groups) under laboratory conditions. Experiment III evaluated the performance of the BPT sensor under farming conditions using four groups of 1000 sea bass per sensor (large groups) held in sea cages. Some of the advantages of the BPT sensor over other sensors are: (1) a shorter learning period, 11–12 days in exp. I, 1–2 day in exp. II and 1 day in exp. III; (2) absence of temporal constraints, allowing sea bass to feed at night (60% of nocturnal demands in exp. II; 23% and 47% of nocturnal demands in September and February, respectively, exp. III); (3) prevents accidental activation by fish, wind or waves; (4) low feed waste when reward level is set correctly; and (5) low costs, durability, and easy replacement of its components. All these features make the BPT a useful system for sea bass self feeding in sea cages.