Calves treated twice with EPRINEX Pour-On showed significant improvement in weight gain.

The effect of EPRINEX Pour-On on weight gain in grazing calves naturally infected with worms was evaluated. Sixty Belgian Blue-cross calves, 6 to 12 months old and weighing 188 to 316 kg were matched by weight and allocated between two treatment groups:

• Group 1, the Controls, was treated only as needed
• Group 2 was treated with EPRINEX on day of turnout and 56 days later

All calves in the Control group required "rescue" treatment with fenbendazole for gastrointestinal parasitism on two occasions (on Day 43 and on Day 105). Due to sustained dry weather, there was inadequate feed to maintain the calves on pasture, affecting body weights after Day 112. Despite poor pasture and the fact that the Controls received two fenbendazole treatments, the calves treated with EPRINEX gained significantly more weight from the start of the study until Day 112 (P<0.05), and a weight gain advantage continued through Day 126. The pattern of weight gain for the two groups is shown in the graph. The results demonstrated the value of two treatments with EPRINEX, at turnout and 56 days later, in preventing clinical parasitism and in allowing substantial improvement in body weight gain in calves.

Weight by day, showing significant improvement in the group treated with EPRINEX (heavier cattle suffered from lack of pasture after Day 112).

Data on file

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