Poultry Breeding Articles

  • African grey parrots and their discovered decline

    Amongst parrots, the African Grey ranks pretty high in popularity. From its obvious-colored coat to its intellectual capacity, these beautiful birds generate large demand around the world. Throughout the lands of West and Central Africa (especially in Ghana), the African Greys had once appeared by hundreds. That can no longer be said today as the parrots have almost completely disappeared from ...


    By Bird-X Inc.

  • Relationships between polybrominated diphenyl ethers, transcription and activity of type 1 deiodinase in a gull highly exposed to flame retardants

    Deca‐brominated diphenyl ether (deca‐BDE) mixture, composed mainly of BDE‐209, is subject to usage restrictions in North America and Europe, although global action on its continued use has yet to be undertaken. Relatively large concentrations of PBDEs, especially BDE‐209 and its higher‐brominated degradation products, have been reported in tissues of ring‐billed gulls (Larus delawarensis) ...


    By John Wiley & Sons, Ltd.

  • 92-year old “Bluebird Man” is the epitome of citizen science in action

    We often think of citizen or crowd-sourced science as a flashy, new function of our modern, inter-connected world. But public participation in research has been happening for much of human history and often involves people of all generations. The documentary “Bluebird Man” features ...


    By Ensia

  • What’s Happening to the Birds?

    Following in Rachel Carson’s footsteps, a new generation of scientists investigates a new generation of pesticides. Christy Morrissey is driving her white pickup truck along Canada’s endless prairie highway, windows open, listening for birds. She points to the scatter of ponds glinting in the landscape, nestled among fields of canola that stretch as far as the eye ...


    By Ensia

  • Developmental impairment in Eurasian dipper nestlings exposed to urban stream pollutants

    Avian studies of endocrine disruption have focussed traditionally on reproductive impairment given that many environmental contaminants affect sex steroid hormones. There is also increasing interest in altered thyroid function, and associated early development, particularly in altricial species with extended developmental windows. Both types of effect are relevant under the complex pollutant ...


    By John Wiley & Sons, Ltd.

  • A three‐generational study of in ovo exposure to PBDE‐99 in the zebra finch

    Based on a literature review of avian data for polybrominated diphenyl ethers (PBDEs), ecologically relevant doses, low (10 ng/egg), medium (100 ng/egg), and high (1,000 ng/egg) of the 2,2',4,4',5‐pentabromodiphenyl ether (BDE‐99) congener along with dimethylsulfoxide (DMSO) control were injected into the yolk sac of un‐incubated eggs of zebra finch, Taeniopygia guttata. Offspring development ...


    By John Wiley & Sons, Ltd.

  • Salmonella enterica serovar enteritidis genes induced during oviduct colonization and egg contamination in laying hens

    Salmonella enterica serovar Enteritidis is the predominant serovar associated with salmonellosis worldwide, which is in part due to its ability to contaminate the internal contents of the hen's egg. It has been shown that S. enterica serovar Enteritidis has an unusual tropism for the avian reproductive tract and an ability to persist in the oviduct and ovary. Factors allowing S. enterica serovar ...

  • Distribution of neotropical migratory bird species across an urbanizing landscape

    Urbanization leads to long-term modification of landscapes by habitat loss, fragmentation, and the creation of new habitats. Species’ distributions respond to these modifications of habitat availability, but the combination of parameters and scale at which habitat alteration most strongly influences species distributions is poorly understood. We evaluated responses of neotropical migratory birds, ...


    By Springer

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