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 366505
Title Prediction of microbial protein supply in dairy cows based on odd and branched chain fatty acids in milk
Author(s) Vlaeminck, B.; Hindle, V.A.; Vuuren, A.M. van; Demeyer, D.; Fievez, V.
Source Communications in agricultural and applied biological sciences 68 (2003)3. - ISSN 1379-1176 - p. 321 - 324.
Department(s) Livestock Research
Publication type Refereed Article in a scientific journal
Publication year 2003
Abstract Four Holstein-Friesian dairy cows (560-600 kg body weight, 67-92 days postpartum) were fed isoenergetic and isonitrogenous diets which differed in the amount of protected starch. Compared to the control ration (diet I), beet pulp was replaced by potato starch, maize meal or wheat meal (diets II, III and IV, respectively). Duodenal, urine and milk samples were collected during the final week of each experimental period for the determination of fatty acids (FA), duodenal diaminopimelic acid (DAPA), purines and urine allantoin. It was shown that differences in the amounts of protected starch induced significant changes in the microbial nitrogen (MN). Duodenal odd and branched chain fatty acids (OBCFA) ranged from 2.89-6.22 mg/g and was positively related to DAPA and purines. Milk OBCFA was not affected by diet and was positively related with DAPA and allantoin MN. These results show the potential of milk OBCFA excretion to predict the duodenal flow of MN in dairy cows
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