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 452831
Title Hydrate sodium calcium aluminosilicate does not reduce rumen lipopolysacharide concentrations in cows
Author(s) Pilachai, R.; Schonewille, J.T.; Thamrongyoswittayakul, C.; Aiumlamai, S.; Wachirapakorn, C.; Everts, H.; Vlaeminck, B.; Doekes, G.; Hendriks, W.H.
Source Animal Feed Science and Technology 191 (2014). - ISSN 0377-8401 - p. 111 - 115.
Department(s) Research Institute for Animal Husbandry
Animal Nutrition
Publication type Refereed Article in a scientific journal
Publication year 2014
Keyword(s) subacute ruminal acidosis - dairy-cows - inflammatory response - in-vitro - lipopolysaccharide - smectite - triggers - system - milk
Abstract The efficacy of hydrate sodium calcium aluminosilicate (HSCAS) to reduce the concentrations of free lipopolysaccharide (LPS) in rumen fluid of cows was investigated. Six, rumen-fistulated crossbred Holstein, non-pregnant, dry cows were randomly assigned to three experimental rations in a study with a replicated 3 × 3 Latin square design with 28-d periods. During the first 20 days of each experimental period, cows were offered concentrate (5.4 kg dry matter; DM) without HSCAS and rice straw ad libitum. On day 21, cows were fasted for 12 h prior to commencement of a 7-d measurement period during which time cows were offered concentrate (10.5 kg DM) containing either 0, 5 or 10 g/kg of HSCAS and 1.5 kg DM rice straw. Rumen fluid was collected on days 1, 3 and 7 during the measurement period for analysis of pH, LPS and volatile fatty acids (VFA). Supplemental HSCAS did not affect the pH or the concentrations of total and individual VFA in the ruminal fluid. Mean postprandial rumen pH was reduced to values below 5.6 at all times. Rumen LPS concentrations significantly increased from day 1 to 7 during each measurement period with values ranging from 4489 to 104,000 EU/mL but they were not significantly affected by supplemental HSCAS.
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