Growth and fry production of Nile tilapia, Oreochromis niloticus (L.), on different feeding schedules
Growth and fry production of Nile tilapia, Oreochromis niloticus (L.), on different feeding schedules
复制标题
不同饲喂方案下尼罗罗非鱼 Oreochromis niloticus (L.) 的生长和鱼苗产量
DOI：
10.1046/j.1365-2109.2002.00664.x
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发表时间：
2002
期刊：
影响因子：
--
通讯作者：
M. A. Laron
中科院分区：
文献类型：
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作者：
C. Santiago;M. A. Laron
研究了高蛋白和低蛋白饲料对尼罗罗非鱼（Oreochromis niloticus（L.）确定了首先对鱼种进行了初步的饲养试验。这些动物每天喂食高蛋白饮食（H，25%蛋白）或低蛋白饮食（L，18%蛋白），或饮食H 1-3天，随后饮食L 1-4天。每天喂食饲料H的鱼和喂食饲料H 2-3天然后喂食饲料L 1天的鱼（2 H − 1 L和3 H − 1 L）的最终体重显著较高（P < 0.05）。1H− 1 L和3 H −2L的鱼种生长略低。根据鱼种的反应，五个喂养方案进行了测试与亲鱼。采用高蛋白饲料（HP，40%）和低蛋白饲料（LP，25%;与鱼种的H相同）。投饵时间对雌鱼体重影响显著，但对雄鱼体重影响不显著。鱼苗生产没有显着影响的亲鱼喂养时间表。当生长、鱼苗产量和饲料成本节约都被考虑时，1HP− 1 LP和3 HP −2LP喂养方案的亲鱼都给出了最高的整体性能。这些发现为养鱼户在罗非鱼亲鱼饲养管理方面提供了一种选择。
The effect of scheduled use of high-protein and low-protein diets on body weight and fry production of Nile tilapia, Oreochromis niloticus (L.), was determined. A preliminary feeding trial was first conducted on fingerlings. These were fed a high-protein diet (H, 25% protein) or a low-protein diet (L, 18% protein) daily, or diet H for 1–3 days followed by diet L for 1–4 days. Final body weight was significantly higher (P < 0.05) in fish fed diet H daily and in fish fed diet H for 2–3 days followed by diet L for 1 day (2H−1L and 3H−1L). Fingerlings on 1H−1L and 3H−2L had slightly lower growth. Based on the response of the fingerlings, five feeding schedules were tested with the broodstock. A high-protein diet (HP, 40%) and a low-protein diet (LP, 25%; same as H for fingerlings) were used. Feeding schedules significantly influenced body weight of female but not the male fish. Fry production was not significantly affected by the feeding schedule for broodstock. When growth, fry production and saving in feed cost were all considered, the broodstock on 1HP−1LP and 3HP−2LP feeding schedules both gave the highest overall performance. These findings give fish farmers an option in the management of feeding of tilapia broodstock.