Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 352288
Title Relation Between Dietary Energy Source and Body Fat Mobilisation and Blood Metabolites in Dairy Cows
Author(s) Knegsel, A. van; Brand, H. van den; Jorritsma, R.; Dijkstra, J.; Tamminga, S.; Kemp, B.
Source Reproduction in Domestic Animals 41 (2006)4. - ISSN 0936-6768 - p. 304 - 304.
Department(s) Adaptation Physiology
Animal Nutrition
Publication type Abstract in scientific journal or proceedings
Publication year 2006
Abstract 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.
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