Fig. 4

Infective stage larval frequency of gastrointestinal nematodes obtained from the faecal cultures from goats: (a) Haemonchus; (b) Trichostrongylus; and (c) Oesohagostomum. The goats were provided concentrate without tannin (control group) and with tanniniferous food from Bauhinia pulchella. The values are reported as the mean values of two days of analysis. Significant reduction compared with the control group: * p < 0.05; ** p < 0.01; *** p < 0.001