Ford D J
Lab Anim. 1977 Oct;11(4):241-6. doi: 10.1258/002367777780936486.
Increasing hardness of diet pellets reduced food wastage by each species. Also, less wastage occurred when pellets made from finely ground materials were given, an effect that was not related to hardness. The hardest diet reduced growth of the mice by reducing true food consumption and a poorer food conversion efficiency (true food consumption/growth) was obtained. Apparent food consumption increased with the softness of the diet and food utilization (apparent food consumption/growth) of the softest diets was less efficient than those of the others. Grinding of the raw materials prior to pelleting had no effect on food conversion, but food utilization was less efficient because of the greater wastage of pellets from coarsely ground materials and consequent apparent food comsumption.
饮食颗粒硬度增加减少了每个物种的食物浪费。此外，当给予由精细研磨材料制成的颗粒时，浪费较少，这种效果与硬度无关。最硬的饮食通过减少实际食物消耗降低了小鼠的生长，并且获得了较差的食物转化效率（实际食物消耗/生长）。表观食物消耗随着饮食的柔软度增加，最软饮食的食物利用率（表观食物消耗/生长）比其他饮食低。制粒前对原材料进行研磨对食物转化没有影响，但由于粗磨材料制成的颗粒浪费更大以及随之而来的表观食物消耗，食物利用率较低。
