Which type of feed ensures good milk production in cattle?

The cattle feed of milk-yielding animals has two components — roughage and concentrates.

1. Roughage — The roughage includes hay and straw of cereals, green fodder, silage and so on. It has more fibre content then nutritive value.
2. Concentrates — Concentrates include grams and seeds of bajra, maize, cotton seeds, oil cakes, rice and wheat bran. It has less fibre content, but high nutritive value.