Afterparturitionandthroughout
lactationtreatmentswereLP(2.3gP/kgDM),MP(2.8gP/kgDM)andHP(3.4gP/kgDM).
Differences indietaryPwereobtainedbyadding0.60and1.19%mono-sodiumphosphate
per kgDMtoMPandHP,respectively.Thecowswerefedrestrictivelypre-partumandfor
ad libitumintakefromoneweekbeforeexpectedcalvingandthroughouttheexperiment.
Due toahighnumberofhealthproblems,LPtreatmentwasterminatedaftersamplingin
week 12,andcowswereshiftedtoHPandcontinuedonthistreatmentuntilweek36