871 resultados para Endangered breeds


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Mode of access: Internet.

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Shipping list no.: 91-461-P.

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Shipping list no.: 89-191-P.

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Vol. <40>- in two parts: sec. 1, Longwool breeds; sec. 2, Shortwool breeds.

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Thesis (Master's)--University of Washington, 2016-06

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The paper examines the ‘endangered ancestress’ theme in Genesis, in which the matriarchs, Sarah and Rebecca, are passed off to alien rulers as the sisters of their respective husbands, in Sarah’s case twice. Rather than viewing these incidents as clumsy duplication, the paper reads them as a literary device in a continuous narrative. The paper argues that when read in this way, these incidents serve to underline the singular status of Sarah in contrast to Rebecca and subsequent matriarchs. Sarah is shown to be the unique foremother of Israel. Alone of all her sex, she represents a pristine new beginning, analogous to human beginnings in Eden.

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This study investigated the comparative susceptibility of indigenous Moo Laat and improved Large White/Landrace pig breeds to infection with classical swine fever virus (CSFV) under controlled conditions in the Lao People's Democratic Republic (Lao PDR). The Moo Laat (ML) and Large White/Landrace crossbreed (LWC) pigs were inoculated with a standard challenge strain designated Lao/Kham225 (infectivity titre of 10(2.75) TCID50/ml). The results demonstrated that both the native breed and an improved pig breed are fully susceptible to CSFV infection and the mortality rate is high. LWC pigs demonstrated lower (or shorter) survival times (50% survival time: 11 days), earlier and higher pyrexia and earlier onset of viraemia compared to ML pigs (50% survival time: 18 days). In the context of village-based pig production, the longer time from infection to death in native ML pigs means that incubating or early sick pigs are likely to be sold once an outbreak of CSF is recognized in a village. This increased longevity probably contributes to the maintenance and spread of disease in a population where generally the contact rate is low.