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Parasitic diseases in poultry
A parasite is an organism that lives in or on another organism (referred to as the host) and gains an advantage at the expense of that organism. The two types of internal parasites that affect poultry are worms and protozoa. Usually, low levels of infestation do not cause a problem and can be left untreated. Clinical signs of a parasite infestation include unthriftiness, poor growth and feed conversion, decreased egg production, and, in severe cases, death. Also, parasites can make a flock more susceptible to diseases or worsen a current disease condition. External parasites can also cause problems for small flock poultry producers and occasionally for large flock producers. These unwanted visitors can be brought into the poultry house by wild birds or new birds being added to the flock. All new birds should be checked for parasites before they are mixed with the original flock.
Coccidiosis of chickens, one of the most costly diseases affecting the poultry industry worldwide, is caused by infection with one or more of 7 species of the intracellular protozoan parasite Eimeria [1,2]. Eimeria infections occur when susceptible chickens ingest viable sporulated oocysts from contaminated litter. The ingested oocysts invade the intestinal epithelium in a region-specific manner, causing variant pathogenicity in poultry and ranging from reduced feed conversion, hemorrhagic...
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Introduction Coccidiosis causes a great economic loss in the poultry industry due to high rate of morbidity and mortality, sub optimal growth and conversion efficiency and loss of egg production (1). Mortality is mostly marked in caecal form of the disease in young chicks whereas morbidity is well documented in the intestinal form of the disease in adult birds. Etiology The disease is caused by a protozoan parasite...
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Insects (ticks, mites, fleas, lice etc.) nuisance is not a new problem and well known to everyone since old age especially in the animals. Talking about cattle Rhipicephalus (Boophilus) microplus is considered as one of the...
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Grace Albanese (University of Georgia) explained this method to analyze samples and identify Eimeria species, during IPPE 2019 in Atlanta, USA....
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Background Seven species of the genus Eimeria (Apicomplexa, Coccidia) cause chicken coccidiosis, a disease with a huge economic impact in the poultry industry. Disease pathology is characterised by diarrhoea, malabsorption and for some species haemorrhage, and has a severe impact on animal welfare, efficiency of feed conversion and weight gain. Eimeria parasites disseminate readily through flocks via the oral-faecal route and are highly prevalent throughout the world [1]....
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Damer Blake (Royal Veterinary College) discussed interactions with the parasite Eimeria, during the 1st PoultryUniverse Coccidiosis Congress in Curitiba, Brazil....
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I am a doctor in Pakistan related to poultry feed and I mostly check poultry farms. I have been facing coccidiosis problem from 4 to 5 months in the field. There is mostly litter dry and climate in pakistan is mostly dry. But my poultry farmers face the coccidiosis problem in three or four times during 42 days of flock. This causes great economic losses to them. Mostly I use sulfaquinoxaline or toltrazuril salt in water and clopidol in feed to control and treat coccidiosis but sometimes...
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Coccidiosis is a realistic problem and one of the most important diseases of poultry worldwide. It is caused by a protozoan parasite known as Eimeria that invade the cells of the poultry intestine. Species of coccidia which commonly affect poultry are Eimeria tenella , E. acervulina , E. necatrix ,...
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Introduction The Brazilian production of chicken meat has increased considerably and the country is now the world's third largest producer and leader in exports (RODRIGUES et al., 2014). The growing demand for animal protein stimulates a rapid expansion of production systems and increasing the stocking density, favoring the multiplication and spread of pathogens. Outdoor poultry breeding systems that enable lower population density and higher animal welfare does not exclude...
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I am professor at Western Paraná State University (Unioeste, Cascavel, PR, Brazil). I would like to talk about alternative control of the lesser meal worm and the poultry red mite, mainly with biocontrol agents and mineral dusts....
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Modern poultry farming is characterized by the confinement of large numbers of birds in controlled environments, ensuring adequate conditions for the development of the birds. However, this environment is also favorable for the development of insects such as the lesser mealworm (Alphitobius diaperinus Panzer 1797) (Coleoptera: Tenebrionidae). This insect is found worldwide, inhabiting poultry houses, congregating under feeders on the broiler litter, where early larvae and adults live...
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Introduction The lesser mealworm Alphitobius diaperinus (Panzer) (Coleoptera: Tenebrionidae) is a ubiquitous and significant insect pest in commercial poultry house litter. The young chicks ingest larval and adult of the lesser mealworms, which negatively affects their performance and behavior, and causes gastrointestinal lesions (Despins & Axtel, 1995; Japp, 2008). The insect plays a potential role as vector of viruses, protozoa (Eimeria), and bacteria (Campylobacter and...
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Introduction
Coccidiosis is an intestinal infection caused by protozoa, intracellular parasites of the Eimeria genus present in the whole world, that affects all productive values of commercial birds and it is considered as a disease of great economic importance.
For many years, the preventive use of anticoccidians in chicken has been the principal...
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Background Malaria parasites (species of Plasmodium) and related haemosporidians of the order Haemosporida are widespread and diverse pathogens infect many species of the major groups of vertebrates, which are exposed to bites of blood-sucking dipteran insects (Diptera). The latter insects are specific vectors of haemosporidians [1]. Many species of reptiles, birds and mammals are often parasitized, and several species of amphibians and even fish have been reported as hosts of...
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Intestinal parasites (worms) are very common in chickens in the backyard type poultry flocks. The presence of a few parasites does not usually cause a problem. However, large numbers can have a devastating effect on growth, egg production, and overall health. The concentration of parasite eggs in the chickens environment is one factor which plays a major role in determining the severity of the infection. The chickens pick up the parasite eggs directly by ingesting contaminated feed, water,...
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Dr. Maarten De Gussem (Vetworks) talks about the damage caused by this parasite, and how to protect turkeys and chickens from it, during the 5th IHSIG Symposium on Poultry Intestinal Health in Bangkok, Thailand....
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Dr. Damer Blake (Royal Veterinary College) speaks on drugs resistance and the relevance of the microbiome, during the 5th IHSIG Symposium on Poultry Intestinal Health in Bangkok, Thailand....
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Background The poultry industry provides the principal source of animal protein in many developed and developing countries [1]. The adaptability of poultry production systems has fuelled expansion of the industry to most areas of the world with high productivity and relatively low costs. However, intensive systems and backyard flocks remain threatened by viral, bacterial and...
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On 20-21st October, Asian poultry veterinarians and poultry health scientists will be meeting in Manila, Philippines, to listen to experts from around the world speak about the latest developments in the diagnosis, treatment, management and control of poultry diseases. Diseases being covered include avian influenza,...
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