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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 through fat. ...
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By Claire Marie Coleman
As the No. 1 poultry producing state in the U.S., Georgia’s poultry industry generates more than $3.8 billion annually. Part of...
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Using hypothesis-driven data mining, a UGA research team led by Xiangyu Deng of UGA’s Center for Food Safety analyzed over 30,000 genomes of Salmonella Enteritidis obtained from global sources and the international...
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by Sam Shafer
Are rice paddies and duck operations a match made in heaven? In a recent Poultry Science ® study, researchers with Yangzhou University investigated the effects of integrating ducks into a rice farming system on duck carcass traits, meat quality, amino acid, and fatty acid composition.
The team found that a rice-duck (RD) farming system improved the carcass traits, intramuscular fat, essential amino acids, and polyunsaturated fatty...
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Bacillus subtilis DSM 32315 alters immunity, nutrient transporters and cecal microbiome of broiler chickens under necrotic enteritis challenge
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by Sam Shafer
Poultry producers maintain healthy, productive flocks by carrying out depopulation when hens reach 65 to 90 weeks old. Depopulation means hens need to be caught, carried and put in crates on their way to slaughter. The challenge is that hens in commercial systems are not used to being handled, and they often struggle to avoid being caught. As a result, each step of the depopulation process comes with a risk of injury and stress for the...
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by Sam Shafer
Every year, waterfowl producers around the world suffer economic losses due to duck enteritis virus (DEV), also called “duck plague.” This virus is a member of the alphaherpesvirinae subfamily, and it causes severe illness and high mortality in ducks, geese, swans and other birds.
DEV appears to rely on a protein called pUL13 to infect host cells, but little is known about how this protein works.
In a new study, published...
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INTRODUCTION Studies 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 antigens (Abreu, 2010; Slack et al., 2012; Zhang et al., 2015). Immunoglobulin A...
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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, and health. Heat stress affects livestock production results in increased demand for net...
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Introduction The immune system of poultry is typically divided into innate responses and adaptive responses, and reviews of the avian immune system can be found elsewhere (Korver, 2012; Kogut, et al., 2020). Briefly, the innate response includes non-specific mechanisms of exclusion such as the skin and mucosal surfaces of the digestive tract, lungs and other organ systems with exposure to the outside world. Thus, one of the primary means of...
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Introduction Advances 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., 2003; Gous, 2010; Aviagen, 2019). With the introduction of crosses in...
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Transforming Poultry Farming in India with Srinivasa Farms and Hy-Line
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Poultry Immunity The poultry immune system is in many ways the “standard” vertebrate immune system, which is what makes it such a good model for immune research, though there are several key differences when compared to other agricultural species. Indeed, much of our fundamental understanding of immunology has come from the study of poultry, specifically chickens. Discoveries including retroviruses, oncogenes, interferon, vaccine...
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Introduction Trace minerals are essential elements in the maintenance of life for man and animal. However, what is not well understood or appreciated is how absorption and retention of these minerals can affect animal and human wellbeing, psychological status, health, and performance. While required in small amounts, just milligrams per day, trace minerals play critical roles as catalytic, regulatory, and structural components in multiple enzyme and...
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(Mandarin) Strengthening Pellets for Better Feed Performance
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Introduction
The protein is an essential nutrient for every animal diet. It is a source for growth, maintenance, immunity and production for all animals. Actually, every animal species have they own requirement for amino acids. The amino acids are classified as essential amino acids or nonessential amino acids. The essential amino acids are the one not synthetized in vivo and need to be supplier for the diet. There is another...
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Introduction Although bacteria are too small to be seen without the aid of a microscope, their abundance by mass has been estimated to be 1,166 times larger than the mass of all humans. All animals contain populations of bacteria on outer and inner body surfaces such as the skin and the gastrointestinal tract, with the gastrointestinal tract being by far the most densely populated. It has been estimated that cattle, sheep, goats, pigs, chickens, ducks...
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Biodegradation of Mycotoxins: A Biotechnological Innovation for Safe Animal Feed
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INTRODUCTION Distillers dried grains with solubles (DDGS) are by-products obtained during production of biofuels as renewable energy sources. During starch fermentation from cereal grains, ethanol and CO 2 are produced; meanwhile, the remaining nutrients are concentrated in the DDGS fraction (Singh et al., 2005). Corn is the main cereal used in ethanol production in the United States; however, other grains such as wheat, barley, and sorghum are utilized in different...
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Introduction Achieving the best fertility is the only goal for successful running of any breeder operation. Advanced genetic selection in broiler breeding has led to tremendous improvements in progeny performance. Body weight gain achievement in modern broiler breeders is swifter than the past hence male management is a crucial aspect to obtain good quality and quantity of semen. Due to some unforeseen events if there is heavy mortality in males, maintaining the fertility...
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INTRODUCTION Phytase is commonly supplemented in laying hen diets to increase the bioavailability of P and Ca. Dietary phytase supplementation increases Ca and P digestibility (Beutler, 2009), egg production, BW, eggshell quality, and bone quality in egg-laying hens (Hughes et al., 2009; Pelicia et al., 2009) and increases blood myo-inositol concentration in broilers (Sommerfeld et al., 2018). The effects of phytase in diets reduced in available P (avP) and Ca on laying...
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Introduction Antimicrobial additives have been used since the 1950s and are an important alternative to allow adequate productivity for animals raised under increasingly intensive conditions. As a consequence of the widespread use and results of AGP in livestock production, there is interest in the study of these additives by meet industry and the academic community. A total of 68.200 publications are presented as results when using the words “broiler” and...
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1. Introduction Phytogenic feed additives (PFA) are the plant derived products used to improve performance of livestock and poultry (Windisch et al., 2008; Jacela et al., 2010). The PFA comprise of a wide variety of herbs, spices and products derived thereof and are mainly essential oils. This class of feed additives is at present used to a great extent as alternatives to the antibiotic growth promoters (AGP) in poultry and swine nutrition. Obviously, the ban imposed on the...
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INTRODUCTION Disease control, high production, product quality, and reasonable production costs have been the recent main goals of the poultry industry. Hence, meeting per capita consumption and welfare to humans necessitates continuous efficient and goal-oriented healthcare to control disease spread and decrease the application of antibiotics (1). These endeavors will include the launch of programs to control infectious diseases, face the constant changes in political and...
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