Animal feed resources information system

Milk permeate

IMPORTANT INFORMATION: This datasheet is pending revision and updating; its contents are currently derived from FAO's Animal Feed Resources Information System (1991-2002) and from Bo Göhl's Tropical Feeds (1976-1982).


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Common names 
Milk permeate, whey permeate
Related feed(s) 
Membrane filtration technology allows milk components used in making cheese to be concentrated (casein, butterfat) while producing a by-product referred to as milk permeate which contains the lactose, and some of the soluble proteins / minerals. This technology reduces the amount of water and lactose that is shipped to a cheese processing plant and reduces their effluent waste stream.
Nutritional aspects
Nutritional attributes 
Milk permeate is high in lactose, soluble proteins and minerals and can be used as a source of dietary energy, protein and mineral in livestock feeding programs.
Potential constraints 
Adequate heat treatment (pasteurization) should be applied to assure that all pathogenic organisms have been destroyed.
Milk butterfat percentage was increased when milk permeate was fed to dairy cattle (1) (AGRIS 96-019508) (Cowan, 1990). Variation in intake was observed in dairy cattle when milk permeate was fed and it was found that up to 1.7 kg of grain could be replaced by the milk permeate (1) (AGRIS 96-019508) (Cowan, 1990).
Improved gain and feed conversion in calves only received milk replace, when dried whey replaced dried skim milk (2) (CAB 731412774) (Schingoethe, 1973).
Cheese permeate that had the lactose converted to glucose and galactose could be used to provide up to 40 % of dietary energy in growing swine diets, as compared to only 20 % for non-converted permeate (1) (AGRIS 88-097494) (Oksbjerg, 1988). The high lactose content of milk permeate can cause problems when fed to swine (1) (AGRIS 88-097494) (Oksbjerg, 1988).
Nutritional tables
Tables of chemical composition and nutritional value 
Datasheet citation 

DATASHEET UNDER CONSTRUCTION. DO NOT QUOTE. http://www.feedipedia.org/node/731 Last updated on March 16, 2010, 17:13

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