An Outbreak of Intestinal Obstruction by Ascaridia Galli in Broilers in Minas Gerais

Abstract

Industrial broilers raised on helminthic medication-free feed were diagnosed with a severe disease caused by Ascaridia galli, characterized by intestinal hemorrhage and obstruction. A. galli was identified based on the morphological features of the nematode. Broilers were raised for a longer period (63 days) for weight recovery, grouped as stunted (n=500), had low body score and had fetid diarrhea. The duodenumjejunum segment was the most severely affected with obstruction and had localized accumulation of gas. The intestinal mucosa was severely congested with petechial and suffusive hemorrhages. The outbreak resulted in morbidity of about 10% and mortality of up to 4% and was associated to the absence of preventive medication on feed and slack biosecurity. The reemergence of A. galli is discussed in view of the alternative poultry management and raising conditions for drug free and welfare.

Ascaridia galli, a common nematode in semiscavenging indigenous chickens in Bangladesh: epidemiology, genetic diversity, pathobiology, ex vivo culture, and anthelmintic efficacy

“…Ascaridia galli is the most economically important nematode of poultry and prevalent in the major parts of the world ( Ara et al, 2021 ; Shohana et al, 2023 ). However, control of the worm mainly depends on anthelmintic therapy ( Daş et al, 2010 ; Torres et al, 2019 ; Shohana et al, 2023 ). Therefore, findings of the present study, particularly information regarding anthelmintic efficacy will help to minimize the economic losses caused by A. galli globally.…”

“…The worm frequently causes hypoglycemia, increased urates, atrophy of the thymus, stunted growth and reduced egg production. In heavy infection, adult parasites can cause intestinal obstructions, which in turn can lead to reduced nutrient absorption and depletion of fat reserves in the liver ( Daş et al, 2010 ; Sharma et al, 2018 ; Torres et al, 2019 ; Feyera et al, 2022 ). Adult worms may also migrate into the oviduct, and become incorporated in eggs ( Höglund et al, 2023 ).…”

Outbreak of Endoparasitosis in Free-Range Chickens (Gallus gallus domesticus) in Bahia, Brazil

“…Ascaridia galli, visualizado em 2 casos, é considerado de baixa patogenicidade para galinhas adultas, todavia aves jovens são susceptíveis e podem morrer devido a obstrução intestinal e hemorragias causadas por esse parasito [24]. Raramente, são relatados casos de infecção, por esse nematódeo, em sistemas intensivo, diante do rigoroso manejo de biossegurança adotado que minimiza a possibilidade de ingestão de ovos do helminto, diferentemente do manejo extensivo [28]. Os aspectos climáticos, da maior parte do território brasileiro podem contribuir para a sobrevivência dos ovos no ambiente e nas fezes [28].…”

“…Raramente, são relatados casos de infecção, por esse nematódeo, em sistemas intensivo, diante do rigoroso manejo de biossegurança adotado que minimiza a possibilidade de ingestão de ovos do helminto, diferentemente do manejo extensivo [28]. Os aspectos climáticos, da maior parte do território brasileiro podem contribuir para a sobrevivência dos ovos no ambiente e nas fezes [28].…”

The potential of young and old Euphorbia hirta leaves extract as antibacterial against Escherichia coli and antihelminthic against Ascaridia galli obtained in Sentul chickens

“…Duodenum and jejunum segment were the most severely affected. The symptoms of A. galli infection are low body score and fetid diarrhea (Torres et al 2019).…”