نتایج جستجو برای: live bird market
تعداد نتایج: 298254 فیلتر نتایج به سال:
background: to determine the morphological specifications of the bird schistosomes cercaria from lymnaea gedrosiana and to detect the surface carbohydrates as receptors for host lectins in the host-parasite relationship systems such as avian schistosomiasis and human cercarial dermatitis. methods: one hundred ninety two snails collected from dezful areas in khuzestan province, in the south west...
Salmonella and Campylobacter are of concern to the poultry industry because of the continuing association of poultry-borne transmission of these diseases to humans. Live, mature bird interventions can be demonstrated only by comparing colonization in nontreated groups of control birds with treated bird groups. This study attempted to create a reproducible broiler chicken colonization model. Whe...
Understanding and measuring determinants of bid-ask spreads is decisive to clarifying the efficiency of the microstructure of any exchange and general market liquidity. This paper examines the market microstructure of a low liquidity, market maker driven option market, the relations to the underlying securities’ market and the challenges of pricing liquidity. Comparing empirical results with pr...
Avian paramyxovirus serotype 4 (APMV-4) is found sporadically in wild birds worldwide, and it is an economically important poultry pathogen. Despite the existence of several published strains, very little is known about the distribution, host species, and transmission of APMV-4 strains. To better understand the relationships among these factors, we conducted an APMV-4 surveillance of wild birds...
In West and Central Africa, virulent Newcastle disease virus (NDV) strains of the recently identified genotypes XIV, XVII, and XVIII are enzootic in poultry, representing a considerable threat to the sector. The increasing number of reports of virulent strains in wild birds at least in other parts of the world raised the question of a potential role of wild birds in the spread of virulent NDV i...
Highly pathogenic avian influenza (HPAI) H5N1 viruses are currently endemic in poultry in Egypt. Eradication of the viruses has been unsuccessful due to improper application of vaccine-based control strategies among other preventive measures. The viruses have evolved rapidly with increased bird-to-human transmission efficacy, thus affecting both animal and public health. Subsequent spread of po...
Since late 2003, more than 6,500 HPAI/H5N1 outbreaks have been reported in 61 countries and human cases have been identified in 15 countries. While the mechanisms enabling persistence in poultry populations remain unclear, the movement of poultry through live-bird markets (LBM), which are common in Asian countries because of a cultural preference to consume freshly slaughtered meat, has been sh...
We examined current and possible future aspen stand dynamics and cavity-nesting bird abundances for Yellowstone’s northern ungulate winter range. Our measurements suggest aspen stands located within Yellowstone National Park (YNP) are in a different condition than those located in the Gallatin National Forest (GNF), immediately outside the park. Stands inside YNP were composed of more snags and...
Tree islands are habitat for wading birds and a characteristic landscape feature in the Everglades. A total of 93 surface soil and 3 soil core samples were collected from 7 degraded/ghost and 34 live tree islands. The mean Hg concentration in surface soils of ghost tree islands was low and similar to marsh soil. For live tree islands, Hg concentrations in the surface head region were considerab...
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