Effect of three feeding strategies (automatic, ad libitum demand-feeding and time-restricted demand-feeding) on feeding rhythms and growth in European sea bass (Dicentrarchus labrax L.)
Effect of three feeding strategies (automatic, ad libitum demand-feeding and time-restricted demand-feeding) on feeding rhythms and growth in European sea bass (Dicentrarchus labrax L.)
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DOI：
10.1016/s0044-8486(98)00238-5
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发表时间：
1998-04
期刊：
影响因子：
4.5
通讯作者：
M. Azzaydi;J. Madrid;S. Zamora;F. Sánchez‐Vázquez;F. J. Martínez
中科院分区：
文献类型：
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作者：
M. Azzaydi;J. Madrid;S. Zamora;F. Sánchez‐Vázquez;F. J. Martínez
研究了夏季自然条件下，自动投食(A)、自由投食(D)和限时投食（RD）对欧洲黑鲈摄食节奏和生长性能的影响。RD和A每天3次（08:00-09:00、16:00-17:00和00:00-01:00）分别饲喂1 h。D的摄食需求随水温和光周期的变化而变化。当提交给系统RD时，它们的摄食模式与饲料供应期密切相关。饲喂策略对生物量增加和饲料效率均有影响，其中a组效果最差。另一方面，饲喂方式对不同组体组成和体重均匀性均无影响。这些结果表明，黑鲈可以适应不同的摄食策略，但为了从饮食中获得最大的利益，这些策略应该反映鱼类的摄食节奏。
We studied the effect of automatic-feeding (A), ad libitum demand-feeding (D) and time-restricted demand-feeding (RD) on the feeding rhythm and growth performance of European sea bass maintained under natural summer conditions. RD and A had access to feed during three meals a day of 1 h duration each (08:00–09:00, 16:00–17:00 and 00:00–01:00). Feeding demands in D showed daily rhythms that varied according to both water temperature and photoperiod. When submitted to system RD, their feeding patterns were strongly associated with periods of feed availability. Feeding strategies affected both biomass increase and feed efficiency ratio, the worst results being obtained in A. On the other hand, the feeding system had no effect on body composition nor on weight homogeneity of the different groups. These results showed that sea bass can adapt to different feeding strategies, although for maximum benefit to be gained from the diet, these strategies should reflect the feeding rhythms of the fish.