Antinematode Activity of Abomasum Bacterial Culture Filtrates against Haemonchus contortus in Small Ruminants

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ID: 271886
2021
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Abstract
Haemonchosis is a parasitic disease of small ruminants that adversely affects livestock production. Haemonchus contortus is one of the most prevalent nematode parasites that infect the abomasum of small ruminants. This parasite reduces milk production, overall growth and sometimes causes the death of the infected animals. The evaluation of the biocontrol potential of some abomasum bacterial isolates against H. contortus is investigated in this study. Out of which, three isolates—Comamonas testosteroni, Comamonas jiangduensis, Pseudomonas weihenstephanesis—show significant effect against the nematode L3, adult, and egg hatch inhibition assays. Various concentrations of metabolites from these bacteria are prepared and applied in different treatments compared with control. In the case of adult mortality assay, 50% metabolites of C. testosteroni and P. weihenstephanesis show 46% adult mortality, whereas C. jiangduensis shows 40% mortality. It is observed that decreasing the concentration of bacterial metabolite, lowers nematode mortality. The minimum nematode mortality rate is recorded at the lowest filtrates concentration of all the bacterial isolates. The same trend is observed in egg hatch inhibition assay, where the higher concentration of bacterial culture filtrates shows 100% inhibition of H. contortus egg. It is concluded that the effect of bacterial culture filtrates against H. contortus is dose-dependent for their activity against nematode L3, adult, and inhibition of egg hatchment.
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nazish2021animalsantinematode Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Asfa Nazish;Fozia;Baharullah Khattak;Taj Ali Khan;Ijaz Ahmad;Riaz Ullah;Ahmed Bari;Majid M. Asmari;Hafiz M. Mahmood;Muhammad Sohaib;Ahmad El Askary;Attalla F. El-kott;Mohamed M. Abdel-Daim;Nazish, Asfa;Fozia,;Khattak, Baharullah;Ali Khan, Taj;Ahmad, Ijaz;Ullah, Riaz;Bari, Ahmed;Asmari, Majid M.;Mahmood, Hafiz M.;Sohaib, Muhammad;El Askary, Ahmad;El-kott, Attalla F.;Abdel-Daim, Mohamed M.;
Journal animals
Year 2021
DOI
10.3390/ani11061843
URL
https://www.mdpi.com/2076-2615/11/6/1843
Keywords
h. contortus small ruminants abomasum fecal samples bacterial culture filtrates

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