Relation Between Dietary Energy Source and Body Fat Mobilisation and Blood Metabolites in Dairy Cows

A. van Knegsel, H. van den Brand, R. Jorritsma, J. Dijkstra, S. Tamminga, B. Kemp

Research output: Contribution to journalAbstractAcademic


The characteristics of metabolic and reproductive disorders in early lactation suggest a role for the balance in availability of lipogenic and glycogenic nutrients (Van Knegsel et al., 2005; Reprod Nutr Dev 45, 665¿688). The objective of this study was to compare the effects of a glycogenic or a lipogenic diet on body weight change and metabolites in dairy cows in early lactation. Sixteen dairy cows were housed in climaterespiration chambers from week 2 to 9 postpartum (pp) and fed either a lipogenic or glycogenic diet. Diets were fed isocaloric. Mobilisation of body reserves was measured weekly. Blood was sampled weekly. Results are presented as LSMEANS ± SE. Cows fed a lipogenic diet mobilised more body fat (31.2 vs 18.6 kg), had higher non-esterified fatty acid levels (0.46 ± 0.04 vs 0.37 ± 0.04 mmol/ml, p = 0.09) and lower insulin levels (4.0 ± 0.5 vs 5.5 ± 0.6 lIU/ml, p = 0.04) than cows fed the glycogenic diet. No difference was found on b-hydroxybutyrate (2.2 ± 0.2 mmol/ml) and IGF-1 (16.4 ± 1.0 ng/ml). This suggests that the severity of body fat mobilisation and metabolic disorders in early lactation can be altered by feeding isocaloric diets differing in lipogenic and glycogenic nutrient content.
Original languageEnglish
Pages (from-to)304
Number of pages1
JournalReproduction in Domestic Animals
Issue number4
Publication statusPublished - 2006


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