Plasma Concentrations of Vitamin E in Six Species of Bustard (Gruiformes: Otididae)

Anderson, Susan J.; Dawodu, Adekunle; Patel, Mahendra; Bailey, Thomas A.; Silvanose, Christudas

doi:10.7589/0090-3558-38.2.414

Cited by 5 publications

(11 citation statements)

References 13 publications

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“…In the WTSEs of our study as well as in the kori bustard (Ardeotis kori) (Anderson et al 2002) and in different crane species , no significant differences in α-tocopherol regarding the age were detected. In turkey chicks (Meleagris gallopavo), α-tocopherol concentrations of plasma and tissue decreased independent of oral α-tocopherol supplementation (Sell 1996).…”

Section: Resultscontrasting

confidence: 71%

“…Carnivorous Ciconiiformes (storks and allies) living in zoos had lower α-tocopherol plasma concentrations (mean, 28.8 μmol/L) compared to birds in our study (Dierenfeld and Traber 1993). Bird species with predominantly herbivorous nutritional intake, like Columbiformes, Anseriformes, Galliformes, and Gruiformes ) as well as different omnivorous bustard species (Anderson et al 2002) had lower α-tocopherol plasma concentrations than the birds of prey in our study.…”

Section: Resultsmentioning

confidence: 87%

“…As in juvenile and adult houbara bustards (Chlamydotis undulata) (Anderson et al 2002), for northern goshawks and ospreys, significant differences were found regarding the age. In the WTSEs of our study as well as in the kori bustard (Ardeotis kori) (Anderson et al 2002) and in different crane species , no significant differences in α-tocopherol regarding the age were detected.…”

Section: Resultsmentioning

confidence: 92%

“…Several studies investigating several bird species did not find sex-specific differences in α-tocopherol plasma concentrations (Anderson et al 2002;Ghebremeskel et al 1991). In our study, male ospreys and WTSEs had significantly higher plasma levels compared to females, respectively.…”

Section: Resultsmentioning

confidence: 96%

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Plasma concentration of α-tocopherol in different free-ranging birds of prey

et al. 2011

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In this study, we investigated the α-tocopherol plasma concentrations in healthy free-ranging nestlings of the white-tailed sea eagle (Haliaeetus albicilla) (n=32), osprey (Pandion haliaetus) (n=39), northern goshawk (Accipiter gentilis) (n=25), common buzzard (Buteo buteo) (n=31), and honey buzzard (Pernis apivorus) (n=18) as well as of free-ranging adults of the white-tailed sea eagle (n=10), osprey (n=31), and northern goshawk (n=45). α-Tocopherol plasma concentrations were determined by reverse-phase high-performance liquid chromatography. α-Tocopherol plasma concentrations in nestlings of osprey, white-tailed sea eagle, and northern goshawk did not differ significantly amongst the species, but the common buzzard and honey buzzard nestlings had significantly lower α-tocopherol plasma concentrations than nestlings of the other species (both P<0.001). Adult male ospreys and white-tailed sea eagles had significantly higher α-tocopherol concentrations compared to adult females (both P<0.005). Adult ospreys and northern goshawks had significantly higher α-tocopherol plasma concentrations compared to their nestlings (both P< 0.001). In adult female northern goshawks, plasma concentrations of α-tocopherol increased significantly before egg laying (P<0.001). These results demonstrate α-tocopherol plasma concentrations in birds of prey to be species specific and influenced by age and reproductive status.

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Section: Resultscontrasting

confidence: 71%

Section: Resultsmentioning

confidence: 87%

Section: Resultsmentioning

confidence: 92%

Section: Resultsmentioning

confidence: 96%

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Plasma concentration of α-tocopherol in different free-ranging birds of prey

et al. 2011

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“…Vitamin E also has a role in combatting skeletal and cardiac muscle myopathies that can be the result of a stressful event (McDowell 2000). Capture myopathy is rare in domestic poultry species (Menon et al 2014), but is regularly recorded in captively managed wild birds (Dierenfeld 1989, Anderson et al 2002, Businga et al 2007, McEntire & Sanchez 2017. If unsupplemented, captively managed carnivorous and granivorous birds are at particular risk of vitamin E deficiency because of the naturally high lipid content of their diet.…”

Section: Vitamin E Reference Ranges Of Cranesmentioning

confidence: 99%

Current perspectives in avian nutrition: domestic animal models and their role in conservation management

Jarman,

Shaw,

Grueber

2023

Ibis

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As biodiversity declines, wildlife conservation focuses on in situ and ex situ management strategies. Zoo‐based breeding programmes are often designed to contribute to the conservation of species that are threatened in the wild. Diet contributes to the reproductive success, disease status and longevity of all animals. It is near‐impossible to replicate a species' diet in captivity using only the species they consume in the wild, but the nutritional composition of a wild diet, if known, can be closely matched using commercially available foods for which the nutritional composition has been calculated. Ecological research has identified food items of importance in the diet of many species. However, the nutritional composition of these food items is rarely evaluated, even though the composition of wild food items is important in understanding the dietary adaptations and requirements of wildlife. In contrast, the nutritional requirements of domestic species are well researched and can be used to predict a range of plausible nutrient requirements of some wild species, especially those with similar life histories. Access to wild populations provides further opportunities for nutritional science to determine the requirements of individual species. Small‐scale dietary experimentation undertaken at conservation institutions may show positive effects on health and welfare but is rarely published in the scientific literature. This review describes current standards in nutritional management of birds and recommends pathways for filling knowledge gaps. Research on mammals has dominated the nutrition literature, so there is a relative lack of nutritional management information for birds. We combine concepts of domestic animal nutrition with recent findings on the nutritional requirements of birds to provide a foundation for further studies of avian nutrition. We call for the broader zoological community to share data and collaborate on nutritional research to support conservation institutions in nutritional management of wild birds.

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An insight into vitamin E and lipid nutrition of the plains‐wanderer Pedionomus torquatus

Jarman,

Shaw,

Liu

et al. 2024

Zoo Biology

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Vitamin E, as α‐tocopherol, is an essential antioxidant protecting the body from free radicals. The vitamin E requirement of managed wildlife species is known to be greater than their wild counterparts, predominantly due to higher dietary lipid content and potentially stressful environments. The plains‐wanderer (Pedionomus torquatus, Family Pedionomidae [monotypical]) is a critically endangered, superficially quail‐like bird that is the focus of an ongoing captive breeding programme in Australia. It is estimated that plains‐wanderers have a high vitamin E requirement (compared with domestic poultry species) to offset a high lipid diet and their naturally flighty temperament. This study therefore aims to gain a greater understanding of the nutritional status and vitamin E requirements of plains‐wanderers in managed environments. Total lipid and α‐tocopherol intake were quantified for 26 zoo‐managed plains‐wanderers over a series of diet intake trials in addition to measurement of plasma α‐tocopherol and cholesterol concentrations. Plains‐wanderers that consumed higher portions of dietary fat had significantly lower circulating α‐tocopherol concentrations than birds that consumed lower total dietary fat (p < .001). Additionally, plasma cholesterol concentrations of managed plains‐wanderers were found to be significantly greater than all other bird species reviewed, irrespective of Family or feeding type. We also present the first published data quantifying the nutritional makeup of stomach contents of a wild plains‐wanderer for use as a potential guide for diet formulation. This study forms a vital foundational insight into the nutritional management of plains‐wanderers, but further research is required to understand their dietary habits and cholesterol metabolism.

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Plasma Concentrations of Vitamin E in Six Species of Bustard (Gruiformes: Otididae)

Cited by 5 publications

References 13 publications

Plasma concentration of α-tocopherol in different free-ranging birds of prey

Plasma concentration of α-tocopherol in different free-ranging birds of prey

Current perspectives in avian nutrition: domestic animal models and their role in conservation management

An insight into vitamin E and lipid nutrition of the plains‐wanderer Pedionomus torquatus

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