Sward allowance at early lactation of primiparous dairy cows: Ⅱ‐Ingestive behaviour

摘要

Grazing the whole year round represents the dominant feeding system in Uruguayan dairies.The negative energy balance that occurs during the transition period in dairy cows is more severe in primiparous cows ( Meikle et al.2004).The main factor affecting the negative energy balance is dry matter intake (DMI) which under grazing is largely determined by sward state (Chilibroste et al.,2005).We are not aware of plant‐animal interface studies involving early lactation primiparous dairy cows under grazing.This experiment was carried out to understand the impact of daily sward allowance on ingestive behaviour at early lactation of first calving dairy cows grazing temperate pastures.