2021
DOI: 10.1007/s11250-020-02505-1
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The genetic basis and robustness of naked neck mutation in chicken

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Cited by 12 publications
(15 citation statements)
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“… Galal et al (2019) found that the naked neck gene improved heat tolerance by increasing HSP70 gene expression rather than by reducing feather cover in Egyptian local breeds raised under heat stress conditions. Additionally, the Na gene increases the size of head appendages (wattle and comb), instigating more body surface to thermoregulation and loss of heat ( Chen et al, 2002 ; El Syaid et al, 2011 ; Desta, 2021 ). Reduced feather surface development leaves extra protein for vital physiological functions and produces more eggs and meat.…”
Section: Feather Coverage and Heat Tolerancementioning
confidence: 99%
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“… Galal et al (2019) found that the naked neck gene improved heat tolerance by increasing HSP70 gene expression rather than by reducing feather cover in Egyptian local breeds raised under heat stress conditions. Additionally, the Na gene increases the size of head appendages (wattle and comb), instigating more body surface to thermoregulation and loss of heat ( Chen et al, 2002 ; El Syaid et al, 2011 ; Desta, 2021 ). Reduced feather surface development leaves extra protein for vital physiological functions and produces more eggs and meat.…”
Section: Feather Coverage and Heat Tolerancementioning
confidence: 99%
“…According to this physiological mechanism, the availability of blood bicarbonate ions becomes limited for eggshell mineralization. Fortunately, some mutations, such as naked neck, frizzle, slow feathering, and dwarf, confer thermoregulation in hot and humid regions by reducing feather mass or body weight ( Gowe and Fairfull, 2008 ; Desta, 2021 ). Additionally, reduced feather coverage leaves more dietary protein available to produce more meat yield and egg production.…”
Section: Introductionmentioning
confidence: 99%
“…Entre el conjunto de aves domésticas manejadas en los SAT en Colombia, se encuentra las gallinas criollas de pescuezo desnudo (Gallus domesticus L. Subespecie nudicollis), de la cual se desconoce su origen y de acuerdo a la región fisiográfica donde se encuentra recibe diferentes nombres como: pescuezo pelado, pelonga, carioca, cuello desnudo, cuelli pelada; en inglés: turkens-naked neck; en francés, cou-nu; en alemán, nackt (5,6). Son animales adaptados a diversos ecosistemas, rusticas, presentan buena habilidad materna, resistente a enfermedades, mantienen su capacidad reproductiva (7,8), son clasificadas como semipesadas, y no pertenecen a alguna raza específica (9). La característica turkens-naked neck, está codificada por un gen que restringe la aparición de plumas (Na) con aproximadamente 40% menos de cobertura de plumas en general y en la parte inferior del cuello.…”
Section: Introductionunclassified
“…En estado homocigoto, el gen Na tiene una alta mortalidad de embrionaria, disminuye la incubabilidad y limita la capacidad de flotación y vuelo del ave. Sin embargo, esta significativa disminución del plumaje, reduce considerablemente la necesidad de suministrar proteína para la producción de plumas, por lo tanto, esta característica puede ser traslada a la producción de carne y huevos (7,10).…”
Section: Introductionunclassified
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