نتایج جستجو برای: gray necked ostrich struthio camelus

تعداد نتایج: 43849  

Journal: :Poultry Science 2004

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Journal: :Arquivo Brasileiro de Medicina Veterinária e Zootecnia 2019

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Journal: :Revista Brasileira de Ciência Avícola 2012

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2003
STEFANIE FREITAG

--We assayed restriction-site differences in mitochondrial DNA (mtDNA) within and among populations of the Ostrich (Struthio camelus) throughout much of its African distribution. Little genetic diversity was evident among samples drawn from localities throughout southern Africa (S.c. australis), while deep divisions in the mtDNA gene tree exist between representatives of the eastern (S.c. molyb...

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Journal: :Zoological Journal of the Linnean Society 2021

Abstract As a result of numerous fossil and subfossil finds ostriches, there is great demand for comprehensive osteometric dataset the living species subspecies genus Struthio. We meet this by providing set > 100 measurements sample 18 sexed skeletons, including all recently extinct ostriches. provide first mensural data two subspecies, hitherto questioned Struthio camelus spatzi from no...

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Journal: :Journal of Veterinary Medical Science 2004

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2013
A. Zakeri

In this study from 58 of 4 month male and female ostrich with 3 pieces of dead ostrich during 24 hours and 8 ostrich with dangerous general conditions history of manufactured flock have gotten after prime survey about farm condition, lack of enough space, unsuitable availability to drinkers and feeders and most important, lack of suitable litter for breeding and increase of stress to birds were...

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Journal: :PeerJ 2017

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Journal: :پژوهش های علوم دامی ایران 0
مسعود علی پناه حمید تقوی آدم ترکمن زهی مصطفی یوسف الهی

the important of ostrich breeding have been increased in the iran as other country around the world. lack of sexual dimorphism in many species of birds including ostrich (struthio camelus), making it difficult to differentiate between males and females, especially in young birds. this can be problematic for breeding programs. blood samples from randomly chicks in the first days were collected a...

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2012
Tian Huang Min Zhang Zhiguo Wei Ping Wang Yi Sun Xiaoxiang Hu Liming Ren Qingyong Meng Ran Zhang Ying Guo Lennart Hammarstrom Ning Li Yaofeng Zhao

Previous studies on the immunoglobulin (Ig) genes in avian species are limited (mainly to galliformes and anseriformes) but have revealed several interesting features, including the absence of the IgD and Igκ encoding genes, inversion of the IgA encoding gene and the use of gene conversion as the primary mechanism to generate an antibody repertoire. To better understand the Ig genes and their e...

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