نتایج جستجو برای: poultry production
تعداد نتایج: 619345 فیلتر نتایج به سال:
BACKGROUND In U.S. conventional poultry production, antimicrobials are used for therapeutic, prophylactic, and nontherapeutic purposes. Researchers have shown that this can select for antibiotic-resistant commensal and pathogenic bacteria on poultry farms and in poultry-derived products. However, no U.S. studies have investigated on-farm changes in resistance as conventional poultry farms trans...
In the U.S., the per capita consumption of poultry has continued to rise since the 1960’s with the largest increase in production of further processed and convenience products (Figure 1). Because of the emphasis on value-added products, the poultry industry has become focused on improving product yield and meat quality. Commonly used methods of adding value to poultry meats include brining and ...
The international trade in poultry hatching eggs could potentially facilitate the global dissemination of poultry disease. Provided the guidelines of the World Organisation for Animal Health (OIE) on breeding flock hygiene are followed, of those avian diseases currently listed by the OlE, only highly pathogenic avian influenza (HPAI), Newcastle disease (ND), and avian mycoplasmosis (caused by M...
The aim of the study was to determine the occurrence of Listeria sp. in poultry meat and poultry meat products and estimate the prevalence of L. monocytogenes strains producing listeriolysin O. No listeria strain was detected in any of 50 examined heat-treated products. These bacteria were present in 43 out of 70 samples of raw poultry meat and 6 of Listeria strains were defined as L. monocytog...
Organic poultry production has substantially increased in the last few years. On organic farms, welfare of poultry is enhanced due to enriched housing conditions as access to a free range area. This may reduce feather pecking and keep the health status at least on the same level as on conventional farms. However, welfare of organic poultry may be further improved if: (a) laying hens are already...
Food borne Salmonellosis in human is mainly caused by the consumption of contaminated eggs and other poultry products. Trans-shell route is considered the underlying phenomena leading to the production of Salmonella Infantis contaminated eggs. Salmonella Infantis comes in the top 10 human pathogenic Salmonella serovars, been isolated from human and poultry from diverse group of countries in pat...
A strain of Aspergillus ochraceus Wilhelm, isolated from poultry feed, produced both penicillic acid and ochratoxin A. Studies demonstrating the ability of this fungus to colonize poultry feed and produce these two mycotoxins under various temperatures and moistures indicated that the interaction was complex. The optimal temperature for conidial development did not vary with moisture, but accum...
using low-cost feedstocks such as rendered animal fats in biodiesel production willreducebiodieselexpenditures. one of the low-cost feedstocksfor biodiesel production could be the fatextracted from poultry feathers producedin slaughterhouses abundantly. this paper describes a new andenvironmentally friendly process for developing biodiesel production technology from feather waste producedin pou...
In this paper we investigate the role of poultry in households’ livelihood portfolios, and the livelihood impacts of supply and demand shocks that may be caused by avian flu outbreaks and scares. We focus on four sub-Saharan African countries that represent a spectrum of disease status and spread. By using nationally representative data and econometric methods, we profile the characteristics of...
The objective of this work was to characterize the production of chickens and technical performance of family poultry farms in the Departments of Hadjer Lamis in the Sahel zone and West Tandjilé in the Sudanian zone. The crosscutting and retrospective survey covered 16 villages and 233 farmers randomly selected. The investigated Livestock was made up of 5208 birds. Poultry farmers are mainly fa...
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