Frequency dispersion reveals chromophore diversity and colour-tuning mechanism in parrot feathers [PDF]
Royal Society Open Science, 2018 Variation in animal coloration is often viewed as the result of chemically distinct pigments conferring different hues. The role of molecular environment on hue tends to be overlooked as analyses are mostly performed on free pigments extracted from the ...
Jonathan E. Barnsley +3 more
doaj +1 more source
Growth and slaughtering performance, carcase fleshiness and meat quality according to the plumage colour in Padovana male chickens slaughtered at 18 weeks of age [PDF]
, 2019 The aim of this trial was to investigate on the growth and meat quality of Padovana male chickens with different plumage varieties, chamois (PC - light brown feathers with white edge), silver (PS - white feathers with black edge), and their cross.
Rizzi, Chiara
core +1 more source
Bird Health, Housing and Management Routines on Swedish Organic Broiler Chicken Farms
Animals, 2020 Slower-growing broilers on organic farms have replaced fast-growing hybrids to increase bird welfare. Due to limited knowledge of broiler welfare and management on organic farms in Sweden, the study aim was to gather information regarding health, housing
Lina Göransson +2 more
doaj +1 more source
Environmental and Parental Influences on Offspring Health and Growth in Great Tits (Parus major) [PDF]
, 2013 PMCID: PMC3728352This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are ...
A Velando +83 more
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Nestling diet, secondary sexual traits and fitness in the zebra finch [PDF]
, 1999 We examined the effect of nestling diet quality on a suite of physiological, morphological and life-history traits in adult male zebra finches,Taeniopygia guttata.
Arednt J. D. +5 more
core +2 more sources
Association of Tyrosinase (TYR) and Tyrosinase-related Protein 1 (TYRP1) with Melanic Plumage Color in Korean Quails () [PDF]
Asian-Australasian Journal of Animal Sciences, 2013 TYR (Tyrosinase) and TYRP1 (Tyrosinase-related protein 1) play crucial roles in determining the coat color of birds. In this paper, we aimed to characterize the relationship of TYR and TYRP1 genes with plumage colors in Korean quails.
Ying Xu, Xiao-Hui Zhang, You-Zhi Pang
doaj +1 more source
Molt strategy and delayed plumage maturation in the Lined Seedeater
Journal of Field Ornithology, 2023 Lined Seedeaters Sporophila lineola , an intra-tropical migratory songbird, exhibit extensive phenotypic variation, with characteristic black-and-white male and brownish female plumages.
Dalila Ferreira +3 more
doaj +1 more source
The Journal of Poultry Science, 2014 In contrast to other domestic and wild animals, the genetic variation of MC1R gene and association with plumage color has not been investigated in domestic goose.
Jing Huang +6 more
doaj +1 more source
A new female-like morph of juvenile male Levant Sparrowhawk (Accipiter brevipes) – Sexual mimicry to avoid intra-specific predation? [PDF]
, 2015 In migrant Levant Sparrowhawk (Accipiter brevipes) at Eilat, Israel, we noted that juvenile males had two different morphs – the one described to date in literature; and a second, previously undescribed morph, with femalelike barring on the ...
Fornasari, Lorenzo, Yosef, Reuven
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Behavioural and physiological responses of laying hens to automated monitoring equipment [PDF]
, 2018 Automated monitoring of behaviour can offer a wealth of information in circumstances where observing behaviour is difficult or time consuming. However, this often requires attaching monitoring devices to the animal which can alter behaviour, potentially ...
Booth, F +6 more
core +4 more sources