title: Changes in milk composition during lactation in the tammar wallaby (Macropus eugenii).
abstract: Milk samples were obtained at regular intervals throughout lactation from tammar wallabies (M. eugenii). Total solids represented only 12% (w/w) of the milk at the commencement of lactation and gradually increased to about 40% at 36 weeks. Milk proteins represented 4% (w/w) of whole milk during the first 18 weeks of lactation, followed by a rapid increase to around 13% (w/w) at 36 weeks. Sodium and potassium concentrations were high in early samples of milk but declined to minimal values at 30 weeks. The milk was isosmotic to the plasma at all stages.
mesh_terms: D000818:Animals; D005260:Female; D007774:Lactation; D007614:Macropodidae; D008394:Marsupialia; D008892:Milk / Q000378:metabolism*; D008894:Milk Proteins / Q000378:metabolism*; D009584:Nitrogen / Q000378:metabolism; D009994:Osmolar Concentration; D011188:Potassium / Q000378:metabolism; D011247:Pregnancy; D012964:Sodium / Q000378:metabolism
chemical_list: D008894:Milk Proteins; D012964:Sodium; D009584:Nitrogen; D011188:Potassium