The carotene of milk fat (butter)

Gillam, A. E.; Ridi, Mohammed Shafik El

doi:10.1042/bj0310251

Cited by 13 publications

(2 citation statements)

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“…The individual variability already discussed for Jersey cows may be assumed to O'ccur in O'ther breeds, so that little significance can be attached to differences in carotenoid and vitamin A alcO'hol levels in the blood of the twO' pedigree Ayrshire cows and bulls. However, as is apparent from Table 3, differences were slight compared with the 3-to 5-fold sex differences between cows and bulls reported by other workers (e.g., Gillam and El Ridi 1937; would seem, as suggested by Goodwin (1952). that these larger differences are of dietary origin, resulting from the different management of cows and bulls, and that, where both are maintained on pasture throughout the year, differences are no greater than might be anticipated between individual animals of the same breed.…”

Section: Agementioning

confidence: 44%

“…The rate at which normal adult levels are attained might, however, be expected to depend on the daily carotene intake of the animals. Various workers have found marked differences between the levels of carotenoids in the blood of cows and bulls (Gillam andEl Ridi 1937, 1945;, but it is uncertain whether these differences are related to sex or merely to dietary factors associated with the different management of cows and bulls. The onset of lactation causes a sudden drop in blood carotenoids and vitamin A (e.g., Walker et al 1949).…”

Section: Introductionmentioning

confidence: 99%

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Carotenoids and vitamin A in the blood of the bovine

McGillivray

1960

New Zealand Journal of Agricultural Research

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SummaryThis paper summarises results of carotenoid and vitamin A alcohol assays on a large number of individual blood samples taken from groups of pasture-fed dairy cows throughout the 1<954-55 to 1958-59 dairying seasons. Marked seasonal variations are shown to occur each year and attention is particularly drawn to the very large variability in the blood levels of carotenoids and vitamin A alcohol in individual animals of the 3ame breed.The effect, under pasture-feeding conditions, of factors such as breed, age, sex, and lactation on blood carotenoid and vitamin A alcohol levels is also reported. It is shown that, under New Zealand conditions of high carotene intake throughout the year, the relationship between blood and milk-fat carotenoid levels is very different from that reported by overseas workers for lower carotene intakes.

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Section: Agementioning

confidence: 44%

Section: Introductionmentioning

confidence: 99%

Carotenoids and vitamin A in the blood of the bovine

McGillivray

1960

New Zealand Journal of Agricultural Research

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Xxvii. Comparative Values of Bovine and Human Milks in Infant Feeding

Lawrence¹

1945

Arch Pediatr Adolesc Med

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The component fatty acids of bovine mammary‐gland fat

Garton¹

1954

J Sci Food Agric

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The component acids present in the fat of the secretory tissue of the udders of a lactating and a non-lactating cow were determined. The fat of the lactating gland contained about half as much of the lower saturated acids (butyric-capric) as a typical milk-fat, with a compensating increase in the proportions of stearic and palmitic acid ; all the minor unsaturated acids of milk fat were detected. Although the fat of the non-lactating gland contained small amounts of the minor saturated and unsaturated acids characteristic of milk fat, it differed from lactating-gland fat and also from bovine depot-fat in the relative amounts of the major component acids; palmitic acid comprised more than 40% of the total acids of this fat.

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The carotene of milk fat (butter)

Cited by 13 publications

References 4 publications

Carotenoids and vitamin A in the blood of the bovine

Carotenoids and vitamin A in the blood of the bovine

Xxvii. Comparative Values of Bovine and Human Milks in Infant Feeding

The component fatty acids of bovine mammary‐gland fat

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