Abomasal infusion of corn starch and β-hydroxybutyrate in early-lactation Holstein-Friesian dairy cows to induce hindgut and metabolic acidosis
Sanne van Gastelen, J. Dijkstra, S.J.J. Alferink, G.P. Binnendijk, K. Nichols, T. Zandstra, A. Bannink
Abstract
, and base excess, and a tendency for decreased urinary pH), whereas blood pH remained within a physiologically normal range. Abomasal infusion of BHB resulted in increased concentrations of BHB in milk and plasma, but both remained well below the critical threshold values for subclinical ketosis. Induced compensated metabolic acidosis, as a result of abomasally infused BHB, increased energy retained as body fat, did not affect milk production and composition or inflammatory response, but increased intestinal permeability.
Topics & Concepts
Latin squareHindgutStarchSilageRumenAcidosisDry matterAnimal scienceChemistryLactationAbomasumDairy cattleTotal mixed rationAgronomyFood scienceEndocrinologyBiologyIce calvingFermentationBotanyLarvaGeneticsPregnancyMidgutRuminant Nutrition and Digestive PhysiologyAnimal health and immunologyReproductive Physiology in Livestock