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A description of the growth and moulting of feathers in commercial broilers
(2020-07-03)
1. Changes in feather length and weight and daily losses of down, contour feathers, remiges and retrices were studied in two commercial broiler strains to determine feather growth and moult in broilers up to 112 d of age. ...
Composition of feathers and pulp of two broiler genotypes
(2022-01-01)
1. Cobb and Ross broilers (200 of each sex and breed) were fed four phases of diets ad libitum formulated with balanced protein to match their amino acid requirements throughout growth. Ten birds per genotype were sampled ...
Feather-loss disorder in African and Magellanic Penguins
(Waterbird Society, 2010-09)
A feather-loss disorder, first observed in captive African Penguin (Spheniscus demersus) chicks in a South African rehabilitation center in 2006, was found one year later in wild Magellanic Penguin (Spheniscus magellanicus) ...
Sulfur amino acid requirements for pullets in growth and pre-laying trials
(2021-09-01)
Context: To obtain a good performance of the hens in the laying phase, adequate nutrition in the growth and pre-laying phase is necessary, especially for meeting amino acid requirements that are related to development of ...
First record of feather-loss disorder in Antarctic penguins
(Cambridge University Press, 2014-07)
Little is known about diseases affecting Antarctic wildlife (Kerry & Riddle 2009). Understanding the patterns, causes and effects of disease in these populations is crucial as many of these species are already threatened ...
Modelagem do crescimento das penas e do corpo em frangos de corte
(Universidade Estadual Paulista (Unesp), 2019-06-11)
O crescimento do corpo e das penas constituem características importantes para a indústria avícola. Contudo, visto que o crescimento das penas não foi avaliado como o do corpo e que nenhum estudo científico foi realizado ...
Mean surface temperature prediction models for broiler chickens-a study of sensible heat flow
(2013-07-03)
Body surface temperature can be used to evaluate thermal equilibrium in animals. The bodies of broiler chickens, like those of all birds, are partially covered by feathers. Thus, the heat flow at the boundary layer between ...
Mean surface temperature prediction models for broiler chickens-a study of sensible heat flow
(2013-07-03)
Body surface temperature can be used to evaluate thermal equilibrium in animals. The bodies of broiler chickens, like those of all birds, are partially covered by feathers. Thus, the heat flow at the boundary layer between ...
From cuckoos to chickens: a caught-in-the-act case of host shift in feather mites (Arachnida: Acari: Psoroptoididae)
(Springer, 2014-12-01)
Feather mites are highly specialized permanent ectosymbionts recorded from all recently recognized bird orders. These mites, specialized to live in the plumage of their hosts, rarely cause any visible damage to their ...
Composição das penas e da pulpa de frangos de corte
(Universidade Estadual Paulista (Unesp), 2020-02-20)
A composição em aminoácidos das penas é utilizada como base para predição das exigências nutricionais para o seu crescimento. No entanto, durante o crescimento dos frangos de corte as penas sofrem mudas e consequentemente ...