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Table 4 Faecal egg counts of ewes and lambs for Control and COWP treatments in the field trial conducted in southern Sweden, for the grazing season 2003.

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

Date Ewe Faecal Egg Counts Lamb Faecal Egg Counts
  Control COWP Control COWP
11 May 0 0   
2 June 5 (1/10)* 0   
16 June 5 (2/10) 0   
1 July 0 0 0 0
18 Aug    13 (3/20)* 3 (1/20)
17 Sept    140 (19/20) 70 (16/20)
29 Oct    230 (19/20) 76 (13/20)
  1. *(x/y) proportion of animals with positive egg counts.