單項(xiàng)選擇題在豬、雞生產(chǎn)中日糧粗纖維的量最好在().
A.8-9%,5-8%
B.5-6%,3-5%
C.20-30%,12-15%
D.3-5%,5-8%
A.8-9%,5-8%
B.5-6%,3-5%
C.20-30%,12-15%
D.3-5%,5-8%