Some Factors Influencing Resistance to Histomoniasis in Turkeys

Kendall, S.B.

doi:10.1016/s0007-1935(17)45805-2

Cited by 16 publications

(4 citation statements)

References 4 publications

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“…Dezowitz (1951) found older chicks to be less susceptible to experimental infections than younger ones. However, under experimental conditions Kendall (1957) failed to find any age resistance in turkeys.…”

Section: Notes On Blackheadmentioning

confidence: 77%

On the Interaction between Heterakis gallinarum, Ascaridia galli, “Blackhead” and the Chicken

Madsen

1962

J. Helminthol.

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Measured dosages of larvated eggs of the caecal nematode, Heterakis gallinarum and the small intestinal nematode, Ascaridia galli were fed to domestic chickens, in order to study the distribution of the numbers of worms developing and the influence on the worms and the chicks of the treatments in the experiments. These treatments are summarised in Table 1, p. 110.Chronic respiratory disease, accidentally acquired by the groups of chicks in varying degrees appeared to have no influence on the course of the worm infections and the ensuing blackhead (Table 2, p. 112).Following ingestion of eggs of Heterakis, blackhead occurred in three of four groups of chicks, apparently in varying degrees, possibly related to the size of the egg dosage and to differences in susceptibility to Heterakis (Table 1, p. 110). The chicks inthe group which did not contract blackhead were considerably older than those of the other groups.

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Section: Notes On Blackheadmentioning

confidence: 77%

On the Interaction between Heterakis gallinarum, Ascaridia galli, “Blackhead” and the Chicken

Madsen

1962

J. Helminthol.

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“…As it has been mentioned above that the chemotherapy was available and effective against the blackhead since the middle of the last century. It was observed that the birds that recovered from infection were resistant to histomonosis which supported the idea of vaccination (Brackett & Bliznick, 1949;Sautter and Pomeroy, 1950;Kendall, 1957). It was further confirmed by Clarkson that precipitating antibodies did not protect turkey against histomonosis, and he concluded that immunity against histomonosis was provided by the local immunity of the ceca, serum factors, or leukocytes (Clarkson, 1963).…”

Section: Vaccinationmentioning

confidence: 84%

Alternative Therapeutic Strategies for Histomonosis: A Review

2022

IJAB

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Histomonosis is a protozoan disease of poultry that can cause severe mortalities in turkeys and production losses in the chicken. It is a fastidious disease with pathological lesions in the liver and ceca of infected birds. The disease has been known for more than 100 years when in vitro and in vivo experiments started to understand histomonosis, causative agent and its treatment. The traditional antiprotozoal medicines are being used for control, but public health concerns and resistance are limiting their use. Herbal products, nutraceuticals, vaccines and managemental measures are among the alternatives being investigated. Herbal products with antihistomonal activities also have been launched with limited advantages, feed additives are also showing many beneficial effects have been mentioned. The vaccines are also being investigated which can provide protective immunity in the near future. All of possible treatments their effects and limitations along with preventions have been mentioned in this article. There is a need to work on these substances tirelessly to manage the problem of histomonosis in Poultry.

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“…Around the middle of the last century, chemotherapy was proven to be effective against histomonosis as described above. At that time, it was also found that birds which recovered from an infection by antihistomonal treatment can develop resistance against histomonosis, supporting the idea of vaccination (Brackett & Bliznick, 1949;Sautter & Pomeroy, 1950;Kendall, 1957). Although Clarkson (1963) confirmed this result, he demonstrated that precipitating antibodies did not protect naive turkeys against a severe challenge.…”

Section: Investigations On Vaccination Against Histomonosismentioning

confidence: 91%

Histomonosis in poultry: previous and current strategies for prevention and therapy

et al. 2016

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Histomonosis is a parasitic disease of poultry with worldwide prevalence. The disease can cause morbidity and mortality in chicken and turkey flocks entailing severe economic losses. In the first half of the last century, there was a high demand to control histomonosis as the turkey industry was severely affected by the disease. Consequently, numerous chemical compounds were tested for their efficacy against Histomonas meleagridis with varying outcomes, that are summarized and specified in this review. At the same time, preliminary attempts to protect birds with cultured histomonads indicated the possibility of vaccination. Several years ago antihistomonal drugs were banned in countries with tight regulations on pharmaceuticals in order to comply with the demand of consumer protection. As a consequence, outbreaks of histomonosis in poultry flocks increased and the disease became endemic again. New approaches to prevent and treat histomonosis are, therefore, needed and recently performed studies focused on various areas to combat the disease, from alternative chemotherapeutic substances to plant-derived compounds until vaccination, altogether reviewed here. Considering existing regulations and the overall outcome of experimental studies, it can be concluded that vaccination is very promising, despite the fact that various challenges need to be addressed until the first ever developed vaccine based upon live flagellates in human or bird medicine can be marketed.

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Some Factors Influencing Resistance to Histomoniasis in Turkeys

Cited by 16 publications

References 4 publications

On the Interaction between Heterakis gallinarum, Ascaridia galli, “Blackhead” and the Chicken

On the Interaction between Heterakis gallinarum, Ascaridia galli, “Blackhead” and the Chicken

Alternative Therapeutic Strategies for Histomonosis: A Review

Histomonosis in poultry: previous and current strategies for prevention and therapy

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