营养物质对鱼类食欲的影响

寻找理想鱼粉替代物是近20年动物营养学的研究热点之一,尽管在肉食性鱼类中鱼粉替代物因适口性差、消化率低、氨基酸不平衡和存在抗营养因子等原因导致其替代比例较低,然而,随着鱼粉供求关系的进一步不平衡,替代鱼粉已成为肉食性鱼类养殖可持续发展的必然要求。因此,如何提高肉食性鱼类对鱼粉替代物的利用率成为了鱼粉替代研究的瓶颈。本文从食欲的角度,综述各种营养物质对食欲的影响,以便利用营养措施来人为调控鱼类的食欲,从而提高饲料利用率。

Effect of Nutrients on Appetite of Fishes

Finding ideal fish meal substitutes has become one of the research hotspots of animal nutrition in re-cently two decades. In carnivorous fishes, fish meal substitutes due to poorer palatability, lower digestibility, imbalance amino acid and anti-nutritional factors and other reasons lead to a lower replacement. Despite all this, with the fish meal requirement further increasing, replacement of fish meal has become an inevitable re-quirement for sustainable development of carnivorous fish farming. Therefore, how to improve the utilization of fish meal substitutes becomes the bottle-neck of fish meal substitution study. This paper from the perspective of appetite, reviews the recent advances towards nutrients on the appetite, so as to regulate the appetite through nutrition measures, thus improves the utilization of feed through nutrition measures.