A study of seasonal variation in butter fat: A seasonal spectroscopic variation in the fatty acid fraction

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• A study of seasonal variation in butter-fat: Seasonal variations in carotene, vitamin A and the antimony trichloride reaction
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  Cyhoeddwyd: (1933)
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  Cyhoeddwyd: (1935)
• The vitamin D activity of butter: An attempt to elucidate the nature of the labile factor in butter antirachitic for the rat. The antirachitic potency of lard, olive oil, egg oil and the fatty acids of butters and lard
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  Cyhoeddwyd: (1934)
• Spectroscopic changes in fatty acids: Acids from specimens of butter fat from cows under different nutritional treatments
  gan: Houston, James, et al.
  Cyhoeddwyd: (1939)
• The vitamin D activity of butter: The complex nature of the antirachitic action of butter
  gan: Kon, Stanisław Kazimierz, et al.
  Cyhoeddwyd: (1934)