Original Research

Effects of anthelmintic treatment and feed supplementation on grazing Tuli weaner steers naturally infected with gastrointestinal nematodes

A. Magaya, S. Mukaratirwa, A.L. Willingham, N. Kyvsgaard, S. Thamsborg
Journal of the South African Veterinary Association | Vol 71, No 1 | a674 | DOI: https://doi.org/10.4102/jsava.v71i1.674 | © 2000 A. Magaya, S. Mukaratirwa, A.L. Willingham, N. Kyvsgaard, S. Thamsborg | This work is licensed under CC Attribution 4.0
Submitted: 10 July 2000 | Published: 10 July 2000

About the author(s)

A. Magaya,
S. Mukaratirwa,
A.L. Willingham,
N. Kyvsgaard,
S. Thamsborg,

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Abstract

A study was carried out to determine the epidemiology of gastrointestinal nematodes in indigenous Tuli cattle and the effect of dietary protein supplementation and anthelmintic treatment on productivity in young growing cattle. Forty steers with an average age of 18 months were divided into 4 groups; 1) fenbendazole (slow release bolus) and cottonseed meal (FCSM group), 2) fenbendazole (FBZ group), 3) cottonseed meal (CSM group) and 4) control (no cottonseed meal and no fenbendazole) (control group). Performance parameters measured included wormeggs per gram of faeces (EPG), packed cell volume (PCV), albumin and live-weight gain. Results showed that faecal worm egg counts were lower and PCV was higher in the FCSM and FBZ groups than in the CSM and control groups (P < 0.01). Weight gains were higher in the CSMand FCSM groups than in the FBZ and control groups (P < 0.05). The cost benefits of anthelmintic treatment and dietary supplementation were apparent in this study. The improved growth performance of the FCSM, FBZ and CSM groups reflected a financial gain over the controls on termination of the study. The dominant genera of gastrointestinal nematodes on faecal culture, pasture larval counts and necropsy were Cooperia and Haemonchus. The incidences of Trichostrongylus, Oesophagostomum and Bunostomum were low.

Keywords

Anthelmintic Treatment; Epidemiology; Gastrointestinal Nematodes; Indigenous Cattle; Productivity; Protein Supplementation

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