Haematologic profile and prevalence survey of haemonchosis in various breeds of slaughtered cattle in Ibadan, Nigeria
Nigerian Journal of Animal Production(2019)
Abstract
This study was aimed at determining the haematological profile and prevalence ofHaemonchus parasites in cattle considering the breed, sex, age and body condition scores(BCS) of the animals. The study spanned over 12 months. Whole blood samples werecollected from various breeds of cattle with adult Haemonchus specimens from eachabomasum content of such animals slaughtered at a local abattoir in Ibadan, Southwestern Nigeria. Systematic random sampling method was adopted, with a working sample size of 322. The age and BCS of cattle sampled were estimated using rostral dentition technique and visual indicators, respectively. The adult Haemonchus worms were collected in normal saline and identified morphologically. The haematologic profile was determined using pocH- 100iV Diff® (Haematology System, Sysmex Animal Health Germany). Data obtained from this study were analyzed statistically using microsoft excel, SPSS (Version 20), and graphPad prism version 5.0 with Fisher's exact test Haematological profile in bovine haemonchosis showed anaemia with an overall mean packed cell volume (PCV) of 25.59±0.03%, whereas the apparently healthy cattle had a mean PCV of 34.52 ±0.02%. The overall prevalence of bovine haemonchosis was 16.6 %. Our findings revealed that prevalence of bovine haemonchosis varied with months, season, body condition score, age, breeds with no sex predisposition. There is a need for constant monitoring of gastrointestinal parasites, appropriate anthelminthic regimen and control measures to promote animal production and prevent huge economic losses as a result of subclinical, acute illness and death in severe levels of parasitism.
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Key words
haemonchosis,cattle,various breeds,ibadan
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