Effect of particle size

monica

这句话应该怎么理解：
Adapted from Healy et al., 1994.  Date represent means of pigs fed either corn and hard or soft endosperm milo ground to the respective particle sizes.

007畜牧

改编自（也就是选自）Healy 等，1994. Date应该是Data 吧，后面应该是说 给猪饲喂磨成不同颗粒大小的玉米以及软质或硬质高粱