Question

feed intake of lactating sows is driven by _____________.
a) the amount of milk produced
b) body weight
c) litter size
d) all of the above

Explanation:

Lactating sows need more nutrients. The amount of milk produced affects nutrient demand (more milk needs more feed). Body weight influences maintenance energy needs (heavier sows need more feed for basic functions). Litter size means more piglets to feed, increasing milk production demand and thus feed intake. So all these factors play a role.

Answer:

d) All of the above