Vitamin E

Scott, M. L.

doi:10.1007/978-1-4615-8870-2_3

Cited by 30 publications

(4 citation statements)

References 238 publications

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“…Vitamin E deficiency has been shown to decrease egg fertility and hatchability of alligators, Alligator mississipiensis (Lance, Joanen & McNease 1983), while embryos from hens fed diets low in vitamin E die as early as the fourth day of incubation (Scott 1978). In this colony of gulls c‐eggs failed to hatch significantly more often than either a‐ or b‐eggs (of 98 three‐egg clutches where at least one chick hatched, 16 c‐eggs failed to hatch compared with 3 failed a‐eggs and 4 failed b‐eggs; G 2 = 12·31, 2 df, P < 0·01).…”

Section: Discussionmentioning

confidence: 99%

Parental investment and egg yolk lipid composition in gulls

Royle

Surai²,

McCartney³

et al. 1999

Functional Ecology

136

125

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1. Within‐clutch variation in parental investment of yolk lipid (including essential fatty acid composition and fat‐soluble vitamin content) was investigated in whole clutches of three eggs of Lesser Black‐backed Gulls, Larus fuscus. 2. Although there were no significant differences between years in egg size or yolk mass among eggs of the same laying order, eggs collected in 1996 had significantly lower lipid content than those collected in 1997. 3. In both years third‐laid c‐eggs were smaller, had a smaller mass of yolk and had significantly lower yolk lipid mass compared with earlier laid (a‐ and b‐) eggs. 4. Despite this lower lipid mass of c‐eggs, of the different lipid fractions only cholesterol content of c‐eggs was significantly lower than that of a‐ or b‐eggs. 5. Earlier laid eggs had greater amounts of arachidonic acid in the phospholipid and cholesterol ester fractions of yolk lipid, and considerably greater quantities of vitamin E and carotenoids. 6. Conversely, levels of linoleic acid and vitamin A were equalized among eggs of different laying sequence as both these essential nutrients have primarily systemic roles. 7. The probable effect of increased antioxidant (vitamin E and carotenoid) content of earlier‐laid eggs is to enhance embryonic and neonatal growth and development, reduce susceptibility to pathogens and increase the ability of the embryo to withstand the oxidative stress associated with hatching. 8. The results suggest that there is maternal bias of essential nutrients to offspring with the highest reproductive value in order to maximize reproductive success.

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Section: Discussionmentioning

confidence: 99%

Parental investment and egg yolk lipid composition in gulls

Royle

Surai²,

McCartney³

et al. 1999

Functional Ecology

136

125

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“…The specific extinction coefficient (E 1% 1cm ) of the all-trans RP standard in isopropanol, which exhibits the maximum ultraviolet (UV ) absorption, is 960 at 326 nm (Olson, 1990). The E 1% 1cm of ␣-, ␤-, ␥-, and ␦-tocopherols' standard in ethanol are 71 at 294 nm, 86.4 at 297 nm, 92.8 at 298 nm, and 91.2 at 298 nm, respectively (Scott 1978).…”

Section: Tocopherols and Rp Analysismentioning

confidence: 94%

Stability of Tocopherols and Retinyl Palmitate in Snack Extrudates

Suknark

Lee

Eitenmiller

et al. 2001

Journal of Food Science

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Fish-and peanut-containing half-products were obtained by extruding and drying tocopherol-and retinyl palmitate-fortified mixtures of tapioca starch and minced fish or partially defatted peanut flour (PDPF 60:40, wet basis). Half-products were puffed by deep-fat frying. Vitamins were determined simultaneously at each step of snack production using a direct solvent extraction method. Extrusion significantly reduced the content of tocopherols and retinyl palmitate in both products. Reduction of retinyl palmitate in fish and peanut extrudates during snack production was 48% and 27%, respectively. Final products contained more tocopherol than intermediates because of the high tocopherol content in the frying oil and its uptake.

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“…The samples were cut into small pieces, homogenized in a blender, and analyzed immediately. Source: Scott (1978).…”

Section: Sampling and Pretreatmentmentioning

confidence: 97%