Table 2 Mean daily intake of DM and Ca in the 3 experimental groups. The contribution from barley straw is not included.
From: Serum Calcium Response Following Oral Zinc Oxide Administrations in Dairy Cows
DM intake, kg/day | ||||
|---|---|---|---|---|
Wrap grass silage | Concentrate | Calcium intake, (g/day) | NRC recommendations [2] (Calcium, g/day) | |
Group 1 | 4.1 | 6.8 | 51 | 84 |
Group 2 | 6.0 | 0 | 35 | 30 |
Group 3 | 5.5 | 0 | 32 | 18 |