3.1. Feed consumption, milk production and faecal excretion
The total DMI, as well as the milk production for each diet, is given in Table 2. There
were no feed refusals. There were no significant effects of P source on milk yield or milk
composition and there were no carry-over effects between treatments. There were significant period effects for milk production, but no cow effects, and there were no significant
carry-over effects in the trial. There was, as anticipated, a significant cow effect for milk fat
content. Spot samples of milk varied in P content from 0.84 to 1.02 g/l.