To provide animal breeding methods and breeding apparatus capable of controlling the degree of weight gain or fat mass according to expectation by using the magnitude of fluctuation in the tide generating force that can be easily grasped.SOLUTION: The animal breeding method of the present invention grasps a tide generating force, thereby causing the animal to ingest foods having different fat component contents according to the magnitude of fluctuations in tide generating force. In addition, the animal breeding apparatus of the invention comprises a food intake means that allows an animal to ingest foods having different fat component contents according to the magnitude of fluctuations in tide generating force.SELECTED DRAWING: Figure 1【課題】容易に把握可能な起潮力の変動の大きさを利用することにより、体重の増加程度又は脂肪量を思惑に従って制御できる動物の育成方法及び育成装置を提供する。【解決手段】本発明の動物の育成方法は、起潮力を把握し、起潮力の変動の大きさに応じて、脂肪成分含有量が異なる食物を前記動物に摂取させる。また、本発明の動物の育成装置は、起潮力の変動の大きさに応じて、脂肪成分含有量が異なる食物を動物に摂取させる食物摂取手段を備えている。【選択図】図１
