نتایج جستجو برای: gray necked ostrich struthio camelus
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--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...
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...
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...
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...
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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