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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.
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 known...
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With the growing popularity of free range production systems, the incidence of helminth infections has increased in commercial poultry farms in Australia. Adequate control can only be maintained by regular application of commercial anthelmintics. Until very recently, levamisole (LEV) and piperazine (PIP) were the only registered chemicals to treat nematode infections in chickens with no published appraisal of their efficacy status since registration. We report the first formal investigation...
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Do you want to learn about molecular tests for coccidiosis and serologic tests for Helminth control or would you like to receive updates on latest innovation in coccidiosis vaccines?
Join our upcoming training on Parasitology in Poultry which will be held from April 18th to April 20th, 2023.
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Introduction Blackhead disease, also known as Histomoniasis, is an important poultry disease caused by Histomona meleagridis, which is a protozoa that spreads in the bird by the roundworm Heterakis gallinarum, and infects the cecum and liver. Turkeys are highly susceptible to this disease. Although mortalities in turkey flocks reach 80-100% and economic losses exceed 2 million USD/year, there are lack of approved drugs against blackhead disease. Therefore, phytogenic compounds...
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Sebastian Decap (Plantae Labs SpA) comments on this disease and the process of encapsulation for this additive so it can reach the ceca, in this interview during IPPE 2023 in Atlanta, USA....
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Dr Jaiguru Kadam, Technical Manager at Vinayak Ingredients, talks about the importance of natural products for poultry nutrition....
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(Mandarin) Strengthening Pellets for Better Feed Performance
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Vijay Durairaj (Huvepharma) explains the severity of this disease, and comments on diagnosis and prevention best practices, in this interview during IPPE 2023 in Atlanta, USA....
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Introduction Coccidiosis is the most common parasitic disease caused by Eimeria spp., leading to over $14 billion economic loss worldwide annually (Blake et al., 2020). The most prevalent Eimeria spp. in poultry include E. tenella, E. maxima, E. acervulina, E. brunetti, E. necatrix, E. praecox, and E. mitis and have different level of pathogenicity and specific infection sites in the intestine (Cervantes et al., 2020). Eimeria spp. invade intestinal epithelial tissues and induce...
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by Sam Shafer
New research shows the power of vaccination plus feed additives for birds facing intestinal parasites
Necrotic enteritis (NE) can strike young birds seemingly out of nowhere. The disease, which is driven by bacteria and marked by lesions in the gastrointestinal tract, can lead to massive flock mortality.
Poultry scientists have found that flocks can be predisposed to NE when they are...
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Dr Jaiguru Kadam, Technical Manager at Vinayak Ingredients, talks about the importance of Poultry Red Mite Management.
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Parasites can be detected on the external surfaces of the body by way of a thorough physical examination. Periodical examination of the flock can help to detect an early infestation and can help to prevent a larger flock outbreak. It is important to detect infestations early because of the restrictions on treatments available for food-producing birds. Moreover, many of the parasites have an environmental component so treating the environment is also necessary for...
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Sebastián Decap (Plantae Labs) talks about Necrotic Enteritis and his research results on possible natural solutions involving Quillaja extract, during the Symposium on Gut Health in St. Louis, USA....
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Studies in the past decade have shown that Cordyceps militaris has multiple pharmacological functions, including anti-oxidant, anti-inflammatory, antimicrobial, anti-tumor, and anti-angiogenic activities and immunopotentiation ability. The chemical structure of cordycepin is similar to that of adenosine. Cordycepin can be used as a nucleotide during RNA synthesis, which leads to premature termination of chain elongation because of the absence of oxygen in the 3′...
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Dermanyssus gallinae , the poultry red mite, chicken mite or roost mite, is a major pest of fowl, pigeons, and other caged birds worldwide. The parasite especially common to poultry breeding and egg production operations, it is directly responsible for hundreds of millions of dollars in egg...
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Feed Conversion Ratio: Unveiling the Secrets of Sustainable Livestock Production
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Woody breast (WB), or “Spaghetti meat” affects modern, rapidly growing, high breast yield broilers. Decreased meat quality due to undesirable change in muscle texture and condemnation of affected breast meat cause huge economic losses. WB incidence has increased...
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Excreta egg counting techniques can provide valuable information for assessing flock infection levels, selecting nematode resistant chicken breeds and for determining anthelmintic efficacy. Although the Modified McMaster (MDM) method has been used for a long time, it is generally considered to have low sensitivity and precision (Das et al., 2020). The Mini-FLOTAC (MF) is a more recently developed commercial flotation method for excreta which could be a good alternative to replace MDM. The...
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I. INTRODUCTION The transition in the layer industry from conventional cages to cage-free and even further into free-range production is rewriting the nutritional requirements of the laying hen. In the last 25 years, the number of eggs a hen can produce has increased by about 2 eggs each year while the amount of feed required to produce these eggs has been reduced by 18.6% in cages (Anderson, 1991; Anderson et al., 2013, Anderson, 2019). The result has been a high value...
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Introduction Dermanyssus gallinae (de Geer, 1778), often called the poultry red mite (PRM), is highly prevalent in most parts of the world, especially in farms of laying hens (Sparagano et al., 2009; Sigognault-Flochlay et al., 2017). In uncontrolled conditions PRM populations can grow to very high numbers, commonly reaching up to 50,000 parasites per bird (Sparagano et al., 2014). Especially at night, adult PRM and nymph stages bite hens to suck blood (Sparagano et al.,...
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