Effect of dietary fatty acid composition on fatty acid profiles of polar and neutral lipid tissue fractions in zebra finches, Taeniopygia guttata

McCue, Marshall D.; Amitai, O.; Khozin‐Goldberg, Inna; McWilliams, Scott R.; Pinshow, Berry

doi:10.1016/j.cbpa.2009.06.002

Cited by 40 publications

(32 citation statements)

References 64 publications

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“…[29][30][31][32]. These studies have found that both dietary composition and elongation capacity of individual species affect avian FA composition (32). However, with the exception of work by Pierce et al (31) on Red-Eyed Vireos (Vireo olivaceus), these studies have either looked at seed-and fruit-eating passerines or fish-eating seabirds.…”

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confidence: 94%

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Omega-3 long-chain polyunsaturated fatty acids support aerial insectivore performance more than food quantity

Twining

Brenna

Lawrence

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

194

221

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Once-abundant aerial insectivores, such as the Tree Swallow (Tachycineta bicolor), have declined steadily in the past several decades, making it imperative to understand all aspects of their ecology. Aerial insectivores forage on a mixture of aquatic and terrestrial insects that differ in fatty acid composition, specifically long-chain omega-3 polyunsaturated fatty acid (LCPUFA) content. Aquatic insects contain high levels of both LCPUFA and their precursor omega-3 PUFA, alpha-linolenic acid (ALA), whereas terrestrial insects contain much lower levels of both. We manipulated both the quantity and quality of food for Tree Swallow chicks in a full factorial design. Diets were either high-LCPUFA or low in LCPUFA but high in ALA, allowing us to separate the effects of direct LCPUFA in diet from the ability of Tree Swallows to convert their precursor, ALA, into LCPUFA. We found that fatty acid composition was more important for Tree Swallow chick performance than food quantity. On high-LCPUFA diets, chicks grew faster, were in better condition, and had greater immunocompetence and lower basal metabolic rates compared with chicks on both low LCPUFA diets. Increasing the quantity of high-LCPUFA diets resulted in improvements to all metrics of performance while increasing the quantity of low-LCPUFA diets only resulted in greater immunocompetence and lower metabolic rates. Chicks preferentially retained LCPUFA in brain and muscle when both food quantity and LCPUFA were limited. Our work suggests that fatty acid composition is an important dimension of aerial insectivore nutritional ecology and reinforces the importance of high-quality aquatic habitat for these declining birds.

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mentioning

confidence: 94%

“…Far fewer studies have experimentally manipulated dietary FA composition for wild birds (but see refs. [29][30][31][32]. These studies have found that both dietary composition and elongation capacity of individual species affect avian FA composition (32).…”

mentioning

confidence: 99%

Omega-3 long-chain polyunsaturated fatty acids support aerial insectivore performance more than food quantity

Twining

Brenna

Lawrence

et al. 2016

Proc. Natl. Acad. Sci. U.S.A.

194

221

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“…oleic acid). This possibility is also supported by the fact that granivorous birds consume large amounts of medium chain FAs, but do not retain them in significant levels in their tissues (Conway et al, 1994;McCue et al, 2009;Pierce et al, 2005;Zar, 1977).…”

Section: Differential Oxidation Of Fuels In Birdsmentioning

confidence: 99%

“…Given that exogenous FAs are differentially allocated among tissues (Babayan, 1987;McCue et al, 2009;Mu and Hoy, 2000) and that endogenous FAs are mobilized at different rates according to their physical structure, namely chain length and degree of unsaturation (Price et al, 2008), we predicted that exogenous FAs would be oxidized at different rates. When Jones et al (Jones et al, 1985) examined whether oxidation rates of exogenous, 18-carbon FAs in humans were dependent on their degree of unsaturation, they found that although absorption efficiency of exogenous oleic and linoleic acid was similar (~98%), the cumulative oxidation of oleate was approximately 40% higher than linoleate.…”

Section: Introductionmentioning

confidence: 99%

Tracking the oxidative kinetics of carbohydrates, amino acids and fatty acids in the house sparrow using exhaled 13CO2

McCue

Sivan

McWilliams

et al. 2010

Journal of Experimental Biology

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SUMMARYClinicians commonly measure the 13 CO 2 in exhaled breath samples following administration of a metabolic tracer (breath testing) to diagnose certain infections and metabolic disorders. We believe that breath testing can become a powerful tool to investigate novel questions about the influence of ecological and physiological factors on the oxidative fates of exogenous nutrients. Here we examined several predictions regarding the oxidative kinetics of specific carbohydrates, amino acids and fatty acids in a dietary generalist, the house sparrow (Passer domesticus). After administering postprandial birds with 20mg of one of seven 13 Clabeled tracers, we measured rates of 13 CO 2 production every 15min over 2h. We found that sparrows oxidized exogenous amino acids far more rapidly than carbohydrates or fatty acids, and that different tracers belonging to the same class of physiological fuels had unique oxidative kinetics. Glycine had a mean maximum rate of oxidation (2021nmolmin ), and differed significantly in the extent to which each was oxidized, with 0.73%, 0.63% and 0.21% of palmitic, oleic and stearic acid tracers oxidized, respectively.

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“…In mammals, a ratio above 3 is considered to induce not only inflammation, but also pro-oxidant production, thereby potentially further increasing oxidative stress in urban-dwelling animals (Simopoulos, 2002;Kiecolt-Glasera et al, 2013). Because the immune system responds to pollution (Romieu et al, 2008;Isaksson, 2015, and references therein), the dietary FA composition, and resultant FA compositions of blood and tissues (Austin, 1993;Pierce et al, 2005;McCue et al, 2009;BenHamo et al, 2011), can play a significant role on birds' health in the urban environment. In addition, long-chain PUFAs are themselves sensitive to oxidative stress by being susceptible to lipid peroxidation.…”

Section: Introductionmentioning

confidence: 99%

Species-Dependent Effects of the Urban Environment on Fatty Acid Composition and Oxidative Stress in Birds

et al. 2017

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Ecological impacts of urbanization include the loss of biodiversity and changes in species composition and population densities. However, how the urban environment affects fundamental physiological parameters is largely unknown. Here, we investigated physiological components related to health and nutrition, namely, plasma fatty acids (FA) and lipid peroxidation at inter-habitat and interspecific levels. Specifically, we compared four passerine bird species-the great tit (Parus major), the blue tit (Cyanistes caeruleus), the house sparrow (Passer domesticus), and the tree sparrow (P. montanus)-from urban and rural environments. Significant interactions between species and habitat were revealed for the majority of the FAs. Interestingly, the observed inter-habitat variation in FAs was frequently in opposite directions when comparing species from the two families (tits, Paridae; sparrows, Passeridae). These patterns suggest that sparrows and tits feed on different food sources, or modulate their FA metabolism differently, across the urban-rural gradient. By using canonical discriminant analyses (CDA), we further demonstrated species-specific signals in FA composition, with misclassification of species being <1% within habitats and <7% between habitats. Finally, the urban-rural FA differences between species and families were manifested in two indices of health. Firstly, urban blue tits had a higher total ω-6/ω-3 polyunsaturated FA ratio than rural conspecifics, which is believed to increase inflammatory responses. Secondly, urban sparrows of both species showed higher lipid peroxidation indices (indicating a higher susceptibility to lipid peroxidation if exposed to pro-oxidants), and consequently, a higher level of lipid peroxidation compared to their rural conspecifics. Collectively, the speciesand habitat-specific differences in plasma FA composition, which are linked to nutrition and metabolism, suggest that the urban environment affect tits and sparrows primarily via two different pathways-inflammation and oxidative stress, respectively,-with potential consequences for the health of urban populations.

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Effect of dietary fatty acid composition on fatty acid profiles of polar and neutral lipid tissue fractions in zebra finches, Taeniopygia guttata

Cited by 40 publications

References 64 publications

Omega-3 long-chain polyunsaturated fatty acids support aerial insectivore performance more than food quantity

Omega-3 long-chain polyunsaturated fatty acids support aerial insectivore performance more than food quantity

Tracking the oxidative kinetics of carbohydrates, amino acids and fatty acids in the house sparrow using exhaled 13CO2

Species-Dependent Effects of the Urban Environment on Fatty Acid Composition and Oxidative Stress in Birds

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