Prevalence rate of gastrointestinal nematodes and total worm count in sheep

The prevalence of gastrointestinal (GI) nematode parasites was determined in 50 sheep raised in a smallholder farm in Salak Tinggi, Selangor. The sheep comprised of 27 Damara crosses and 23 Barbados Blackbelly crosses grouped into two age groups: young and adult. Faecal samples were examined for...

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Main Author: Ramli, Nur Syairah
Format: Project Paper Report
Language:English
Published: 2015
Online Access:http://psasir.upm.edu.my/id/eprint/83463/1/FPV%202015%2056%20-%20IR.pdf
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author Ramli, Nur Syairah
author_facet Ramli, Nur Syairah
author_sort Ramli, Nur Syairah
collection UPM
description The prevalence of gastrointestinal (GI) nematode parasites was determined in 50 sheep raised in a smallholder farm in Salak Tinggi, Selangor. The sheep comprised of 27 Damara crosses and 23 Barbados Blackbelly crosses grouped into two age groups: young and adult. Faecal samples were examined for strongyle nematode egg count as egg per gram (EPG) using modified McMaster technique. Severity of infection was categorized into mild, moderate and heavy based on EPG. Five sheep were randomly slaughtered for adult GI nematodes identification by total worm count (TWC) method. FAMACHA score was used for investigation of worm load based on anaemic condition. The study revealed the prevalence rate of EPG was 88%, of which 84.1% of the sheep had mild infection. Barbados Blackbelly crosses were significantly different (p=0.002) in EPG prevalence rate compared to Damara crosses. There was significant difference (p=0.004) in EPG between age groups for Barbados Blackbelly crosses but not for Damara crosses (p=0.941). Correlation between severity of infection and FAMACHA score was significant (r=0.289; p=0.042). From TWC, Haemonchus was the most predominant nematode followed by Trichostrongylus and Oesophagostomum. EPG and TWC for Haemonchus was positively correlated but not significant (r=0.85, p=0.066). From regression analysis, 73% of the variability in TWC for Haemonchus could be explained by EPG. Thus it can be concluded that FAMACHA score correlates well with severity of infection of nematode and can be used to assess the strongyle nematode burden in sheep.
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spelling upm.eprints-834632020-09-28T07:52:55Z http://psasir.upm.edu.my/id/eprint/83463/ Prevalence rate of gastrointestinal nematodes and total worm count in sheep Ramli, Nur Syairah The prevalence of gastrointestinal (GI) nematode parasites was determined in 50 sheep raised in a smallholder farm in Salak Tinggi, Selangor. The sheep comprised of 27 Damara crosses and 23 Barbados Blackbelly crosses grouped into two age groups: young and adult. Faecal samples were examined for strongyle nematode egg count as egg per gram (EPG) using modified McMaster technique. Severity of infection was categorized into mild, moderate and heavy based on EPG. Five sheep were randomly slaughtered for adult GI nematodes identification by total worm count (TWC) method. FAMACHA score was used for investigation of worm load based on anaemic condition. The study revealed the prevalence rate of EPG was 88%, of which 84.1% of the sheep had mild infection. Barbados Blackbelly crosses were significantly different (p=0.002) in EPG prevalence rate compared to Damara crosses. There was significant difference (p=0.004) in EPG between age groups for Barbados Blackbelly crosses but not for Damara crosses (p=0.941). Correlation between severity of infection and FAMACHA score was significant (r=0.289; p=0.042). From TWC, Haemonchus was the most predominant nematode followed by Trichostrongylus and Oesophagostomum. EPG and TWC for Haemonchus was positively correlated but not significant (r=0.85, p=0.066). From regression analysis, 73% of the variability in TWC for Haemonchus could be explained by EPG. Thus it can be concluded that FAMACHA score correlates well with severity of infection of nematode and can be used to assess the strongyle nematode burden in sheep. 2015-03 Project Paper Report NonPeerReviewed text en http://psasir.upm.edu.my/id/eprint/83463/1/FPV%202015%2056%20-%20IR.pdf Ramli, Nur Syairah (2015) Prevalence rate of gastrointestinal nematodes and total worm count in sheep. [Project Paper Report]
spellingShingle Ramli, Nur Syairah
Prevalence rate of gastrointestinal nematodes and total worm count in sheep
title Prevalence rate of gastrointestinal nematodes and total worm count in sheep
title_full Prevalence rate of gastrointestinal nematodes and total worm count in sheep
title_fullStr Prevalence rate of gastrointestinal nematodes and total worm count in sheep
title_full_unstemmed Prevalence rate of gastrointestinal nematodes and total worm count in sheep
title_short Prevalence rate of gastrointestinal nematodes and total worm count in sheep
title_sort prevalence rate of gastrointestinal nematodes and total worm count in sheep
url http://psasir.upm.edu.my/id/eprint/83463/1/FPV%202015%2056%20-%20IR.pdf
work_keys_str_mv AT ramlinursyairah prevalencerateofgastrointestinalnematodesandtotalwormcountinsheep