Phosphorus in transition cows: A dairy cow trial on phosphorus metabolism in the transition period

Research output: Book/ReportReportProfessional

Abstract

The present study evaluates the effect of different dietary phosphorus (P) levels in dairy cattle during the transition period, focussing on animal performance and animal health. Overfeeding P in the dry period (185% vs. 100% of requirements) did not affect feed intake or milk yield postpartum, but decreased plasma P and Ca concentrations and increased the risk for periparturient hypocalcemia. A reduction of the dietary P content in lactation diets (70% vs. 100%) reduced the average plasma P concentration, increased plasma Ca concentration and P mobilisation and reduced faecal excretion of P. However, no negative effects on cow performance or animal health were found for diets with a P content below calculated requirements in the first eight weeks postpartum.
Original languageEnglish
Place of PublicationWageningen
PublisherWageningen Livestock Research
Number of pages61
DOIs
Publication statusPublished - 2019

Publication series

NameWageningen Livestock Research report
No.1221

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