Prevalence of Haemonchus contortus in Goats of Western Chitwan of Nepal

Adhikari, Kashyap; Rana, Hari Bahadur; Kaphle, Krishna; Khanal, Tanka; Raut, Rabin

doi:10.3126/ijasbt.v5i3.18268

Cited by 4 publications

(3 citation statements)

References 4 publications

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“…Moreover, a study in Rwanda has revealed that 71.8% of the goats examined harbored H. contortus ( 37 ). In contrast, our results are slightly higher than that reported in a study conducted in Western Chitwan of Nepal, where H. contortus was reported in 13.89% of the examined goats ( 38 ). Taken into account that most cases were kept indoor before slaughter, the low number of infected animals in the present study vs .…”

Section: Discussioncontrasting

confidence: 98%

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Epidemiological, Morphological, and Morphometric Study on Haemonchus spp. Recovered From Goats in Egypt

Gareh

Elhawary²,

Tahoun³

et al. 2021

Front. Vet. Sci.

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Goats can be infected by multiple groups of external and internal parasites. Haemonchus spp. are among abomasal parasites that can result in higher mortality and several considerable economic losses in goats. Early detection of parasites and better understanding of the major risk factors associated with infection are among the main strategies for controlling the infection. Considering this, information on hemonchosis in goats from Egypt, and the contribution of goats in the maintenance of the epidemiological foci of the disease is limited. This study investigated the prevalence of Haemonchus species among 240 abomasum samples collected during postmortem examination of goat carcasses from Assiut Governorate, Egypt. Moreover, the association of the major risk factors to describe the epidemiological pattern of the disease was explored. This study demonstrated that 16.66% of abomasa samples harbored Haemonchus species. Additionally, age, sex, and sampling season were the most significant risk factors associated with infection. Following the variable factors under study, goats aged 1 year or older were at higher risk, with an infection rate of 22.14% (31 of 140), than those younger than 1 year (9%) [p = 0.008; odds ratio (OR) = 2.87; 95% confidence interval (CI), 1.30–6.35]. The infection rate was 25% (19 of 76) in males and 12.8% (21 of 164) in females [p = 0.024; odds ratio (OR) = 2.26; 95% confidence interval (CI), 1.13–4.53]. Moreover, the exposure to infection was higher in summer (22.22%) than in winter (8.33%) (p = 0.007; odds ratio (OR) = 0.318; 95% confidence interval (CI), 0.139–0.725). More importantly, three species of the parasite—Haemonchus contortus, Haemonchus placei, and Haemonchus longistipes—were identified for the first time, and the confirmation of the identification and morphological characterization of the worms was performed using light microscopy and SEM. Collectively, this study reveals interesting epidemiological, morphological, and morphometric findings associated with the occurrence of hemonchosis among goats in Egypt. This study suggests further research for exploring the major circulating species of the parasite in Egypt, which is mandatory for controlling the disease.

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Section: Discussioncontrasting

confidence: 98%

“…recovered from the abomasum of goats in Egypt, along with the major risk factors associated with infection. In contrast, our results are slightly higher than that reported in a study conducted in Western Chitwan of Nepal, where H. contortus was reported in 13.89% of the examined goats (38).…”

Section: Discussioncontrasting

confidence: 98%

Epidemiological, Morphological, and Morphometric Study on Haemonchus spp. Recovered From Goats in Egypt

Gareh

Elhawary²,

Tahoun³

et al. 2021

Front. Vet. Sci.

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“…In Markhor of Chitral Gol National Park, a prevalence rate of 40% of H. contortus has been recorded by Jamalm et al (2016) against 56-61% prevalence that has been recorded for the parasite in goat in previous studies especially in the Potohar area of Pakistan (Chaudary et al, 2007) and 77.7% Jehangirabad District Khanewal, Punjab, Pakistan recorded by Tasawar et al (2010). Furthermore, Adhikari et al (2017) reported a polyparasitism with the higher prevalence for H. contortus of 13.89% in goats of Western Chitwan of Nepal. According to the same study, H. contortus was more prevalent in non-dewormed (40.32%) than in dewormed (5.26%).…”

Section: Prevalence Of H Contortus In Small Ruminantsmentioning

confidence: 98%

Prevalence, effects and alternative control methods of Haemonchus contortus in small ruminants: A review

Kuiseu¹,

Zinsou²,

Olounladé³

et al. 2021

J. Vet. Med. Anim. Health

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Small ruminants farming is a traditional activity mostly practiced by local populations in developing countries since several centuries. Nowadays, due to many biotic and climatic factors, it faces various problems which damage smallholders' income especially those related to gastrointestinal parasites. In opposite to the chemical drugs use in controlling those parasites, medicinal plants have been investigated with fewer side effects on both the meat quality and the environment. This current study aimed at reviewing Haemonchus contortus prevalence in small ruminants across the world and present medicinal plants that have been investigated in the last decades. H. contortus is identified as the most significant nematode parasite in small ruminants due to its high prevalence reported by many studies. Its presence in small ruminants results in a loss of feed absorption and disturbance of nutrient metabolism, which lead to poor performance and significant economic loss in the herds, especially in rural areas of developing countries. For the past decades, its control was mainly based on the use of chemical anthelmintics; whose use has been limited due to several factors like the irrational and misuse. Recently, the use of medicinal plants has been identified as alternatives methods of its control with conclusive results. Parts of plants or the whole plants of several plant species were reported to be relevant to control H. contortus infection in small ruminants such as:

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