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Coccidiosis is an important health problem in broilers, caused by infection with a highly contagious intestinal parasite of the genus Eimeria. Anti-coccidial drugs are widely used for the prevention of coccidiosis in broilers. However, multi-resistance coccidia is a potential threat to poultry production. Solid-state fermented products produced from B. licheniformis not only contain B. lichen ...
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INTRODUCTIONStudies from humans and rats have showed the intestinal epithelium represents the largest area of exposure of the body to external pathogens and toxins (Abreu, 2010; Slack et al., 2012). The secretory immune system, including secretory IgA (sIgA) and the mucus, serves as the first line of defense to limit epithelial contact with pathogenic microorganisms and other potentially dangerous ...
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1. IntroductionRedox biology is a very quickly developing area of modern biological sciences, and roles of redox homeostasis in health and disease have recently received tremendous attention [1–6]. There are a range of redox pairs in cells/tissues responsible for redox homeostasis maintenance/regulation. They include, but are not limited to, NAD+/NADH, NADP+/NADPH, GSSH/GSH (glutathione syst ...
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Thank you for this article. A couple of issues must be raised, however. First, the correlations of urease activity and TI, measured as mg/g, may not be appropriate. Urease activity is a measure enzyme activity by assessing a rise in pH, while TI, in this case, is assessing the absolute amount of TI remaining in the meal. So, it's perhaps not surprising that a measurement of enzyme activity and ...
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Dear Dr. Koushik De. I find interesting your discussion on trypsin inhibitors and their role as antinutritional factors in broiler nutrition. It would be nice however, if you add a list of all the literature cited and provide credit where credit is due. Havenstein et al. (2003) didn't discuss trypsin inhibitors in their comparison of the 1957 and 2001 genetics, the slide that you have in your pape ...
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IntroductionAdvances in genetics has certainly produced commercial strains of poultry and pig with greater performance (e.g. growth, reproduction) with minimal feed input. For example, over the last 5 decades, the body weight of broilers at 42 days has increased by 25-50 g per year and the feed conversion ratio to 2 kg body weight has improved 2-3 points annually (Havenstein et al., ...
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Poultry is a homothermal animal, and its body covers with feathers to increase its cold resistance. However, Taiwan is an island that lies in the tropic of cancer, and the general climate is marine tropical. During summer, this mechanism is adverse to heat dissipation and causes heat stress.Heat stress is a familiar stress effect that will affect animals’ growth performance, productivity, an ...
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Improving poultry meat quality along with cutting down the cost of production has been one of the major objectives of most farmers and nutritionists. To achieve this objective, several strategies have been adopted, one of which is dietary energy management. Energy is the foremost important and largest part of poultry feed. This energy is either comes from grains like corn, wheat, soy, etc or throu ...
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Dr. Abdolreza Kamyab : The shift to antibiotic free production or better gut health often results in the increase of soybean meal inclusion as there are limited in the number of efficacious protein sources that successfully reduce soybean meal content. Soybean meal is the most widely used major protein source in poultry production across the world. Sometimes we don’t give much importance to CP lev ...
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Juarez Donzele I tend to agree. I think there is a lot of focus on reduced protein without regard for economics and performance. And in the real world, we have challenges with Eimeria and Clostridium not to mention viruses and parasites. When there are GIT challenges, having less undigested protein reach the hindgut is advantageous as there will be less ammonia produced. Ammonia increases pH and f ...
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