1932
DOI: 10.1042/bj0260772
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The absorption of milk precursors by the mammary gland

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Cited by 17 publications
(4 citation statements)
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“…If the mammary gland arginase is, like that of the liver, concerned with deamination and urea production, with gluconeogenesis in fact, it should be possible to demonstrate (a) an uptake of aminoacids by the active mammary gland and (b) an output of urea. Arterio-venous studies, in fact, have uniformly shown a small but definite uptake of amino-acids by the 'lactating gland of the cow (Blackwood, 1932;Shaw & Petersen, 1938a, b; Bottomley & Folley, unpublished results) and the goat (Lintzel, 1934;Graham, Jnr., 1937-8;Graham, Jnr., Peterson, Houchin & Turner, 1937-8;Reineke, Peterson, Houchin & Turner, 1939) but not by the non-lactating bovine udder (Blackwood, 1932). An appreciable output of urea by the udder of the lactating goat has been reported by Graham, Jnr., Houchin & Turner (1937) and Reineke et al (1939).…”
Section: Discussionmentioning
confidence: 99%
“…If the mammary gland arginase is, like that of the liver, concerned with deamination and urea production, with gluconeogenesis in fact, it should be possible to demonstrate (a) an uptake of aminoacids by the active mammary gland and (b) an output of urea. Arterio-venous studies, in fact, have uniformly shown a small but definite uptake of amino-acids by the 'lactating gland of the cow (Blackwood, 1932;Shaw & Petersen, 1938a, b; Bottomley & Folley, unpublished results) and the goat (Lintzel, 1934;Graham, Jnr., 1937-8;Graham, Jnr., Peterson, Houchin & Turner, 1937-8;Reineke, Peterson, Houchin & Turner, 1939) but not by the non-lactating bovine udder (Blackwood, 1932). An appreciable output of urea by the udder of the lactating goat has been reported by Graham, Jnr., Houchin & Turner (1937) and Reineke et al (1939).…”
Section: Discussionmentioning
confidence: 99%
“…Die Vorgänge bei der Milchbildung können auch durch die Untersuchung der Aminosäuren im Plasma nach ihrer quantitativen Seite geprüft werden. Die Untersuchungen von Cary, der die Theorie der Bildung des Milcheiweiß aus Aminosäuren des Blutes begründet hat, können hier nicht verwertet werden, da sie sich wiederum auf den Unterschied zwischen Jugularis‐ und Eutervenenblut beziehen; dagegen liegen jetzt die Versuche von Blackwood (5) an Kühen vor, bei denen der Amino‐N nach van Slyke, also mit ganz anderer Methode als in meinen Untersuchungen, bestimmt wurde.…”
Section: Aminosäuren Des Blutes Als Quelle Des Milcheiweißunclassified
“…These differences can be explained on the basis of the amino-acid composition of the food protein. Cary (19) and Blackwood (20) have shown that the precursors of milk protein are the amino acids of the blood. If the amino-acid mixture resulting from the food protein is correctly proportioned for the synthesis of milk protein (as with bean meal) utilisation of the assimilated amino acids will be high, and wastage low.…”
Section: The Nutritive Value Of Proteins For Milk Productionmentioning
confidence: 99%