This study was conducted to evaluate the anthelmintic effect of Neem (Azadirachta
indica) on nematode parasites of sheep. Twelve Santa Ines cross bred sheep from a
government farm were randomly selected and equally divided into control (n = 6) and treated
groups (n =6). Faecal egg counts (FEC) using the modified McMaster technique and the
FAMACHA score for assessing clinical anaemia were carried out daily and recorded for 6
weeks. At the end of the study all the animals were slaughtered and the total worm count
(TWC) was done. The results of FEC showed that there was no significant difference between
the control and treated group (p = 0.081). However, worm burden estimations showed that
the number of parasites was significantly higher in the control group compared to the treated
group (p < 0.05). This result indicated that feeding Neem had an effect on worm numbers in
sheep, but was not reflected in their faecal egg counts. Further work is needed to reconfirm
the effect of Neem on helminth infections of sheep.