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The effects of feeding compound concentrate supplements with either a low or high level of true methionine digested in the small intestine (DVmet) to dairy cows

Published online by Cambridge University Press:  20 November 2017

R.L.G. Zom ,
E. Kamerman ,
G. Remmelink  and
G. van Duinkerken
R.L.G. Zom
Affiliation:
Research Station for Cattle, Sheep and Horse Husbandry, PO Box 2176, 8203 AD Lelystad, the Netherlands
E. Kamerman
Affiliation:
Research Station for Cattle, Sheep and Horse Husbandry, PO Box 2176, 8203 AD Lelystad, the Netherlands
G. Remmelink
Affiliation:
Research Station for Cattle, Sheep and Horse Husbandry, PO Box 2176, 8203 AD Lelystad, the Netherlands
G. van Duinkerken
Affiliation:
Research Station for Cattle, Sheep and Horse Husbandry, PO Box 2176, 8203 AD Lelystad, the Netherlands
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Extract

The Dutch DVE/OEB protein evaluation system (Tamminga et al., 1994) gives predictions for the concentration of whole true protein digested in the small intestine (DVE) in cattle feeds, but not for the concentration of single amino acids. Therefore, new standard methods has been introduced for the prediction of true methionine and lysine digested in the small intestine (DVmet and DVlys, respectively) in cattle feeds based on the principles of the calculation of DVE (van Duinkerken and Blok, 1998). These methods give the opportunity to select particular feeds and concentrate ingredients in order to manipulate the concentration of DVmet and DVlys in diets and compound concentrates. However, in the Netherlands, there are no recommendations for DVmet and DVlys in dairy cow rations established yet. An experiment was therefore conducted to study the effects of feeding compound concentrate supplements with either a low (L) or high (H) level of DVmet on feed intake and milk production in dairy cows fed a grass and maize silage mixture ad libitum

Type
Programme
Information
Proceedings of the British Society of Animal Science , Volume 1999 , 1999 , pp. 22
Copyright
Copyright © The British Society of Animal Science 1999

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References

Duinkerken, G. van, and Blok, M.C., 1998. Berekening van het gehalte darmverteerbaar methionine en lysine in voedermiddelen voor herkauwers. CVB-documentatie rapport 22.Google Scholar
Tamminga, S., van Straalen, W.M., Subnel, A.P.J., Meijer, R.G.M., Steg, A., Wever, C.J.G. and Blok, M.C., 1994. The Dutch protein evaluation system: the DVE/OEB-system. Livestock Production Science 40: 139–155.Google Scholar