Skip to main content

Table 2 Mean worm burdens in the abomasum and small intestine of lambs with incoming nematode infections either untreated, receiving daily mineral supplement with copper, or receiving COWP.

From: Evaluation of Copper Supplementation to Control Haemonchus contortusInfections of Sheep in Sweden

  Group 4 Control Group 5 Cu Supplement p value 4 v's 5 Group 6 COWP p value 4 v's 6
Abomasum      
H. contortus      
Adults 285 570 0.04 250 0.79
Early L4 1465 1830 0.22 1280 0.52
Total 1750 (84%) 2400 (76%) 0.04 1530 (84%) 0.44
T. circumcincta      
Adults 60 15 0.38 65 0.85
Early L4 50 70 0.66 40 0.82
Total 110 (45%) 85 (82%) 0.74 105 (40%) 0.84
T. axei      
Adults 110 30 0.06 50 0.13
Early L4 0 0   5  
Total 110 30 0.06 55 (10%) 0.13
Small Intestine      
Trichostrongylus spp.      
Adults 85 85 - 160 0.07
L4 65 0   0  
Total 150 85   160 0.07
Nematodirus spp.      
Adults 50 65 0.91 215 0.25
L4 0 0   35  
Total 50 65 0.91 250 0.25
Cooperia spp.      
Adults 10 30   0  
L4 10 30   0  
Total 20 60 (50%)   0  
  1. * number in parenthesis represents the percentage of infection as early L4 larvae