AI Article Synopsis

  • Two groups of first-year grazing cattle were studied: one group received no treatment (control) while the other was treated with an ivermectin bolus.
  • The untreated group faced issues with dictyocaulosis (lungworm infection), while the treated group remained healthy.
  • Ivermectin effectively prevented lungworm larvae shedding and significantly reduced gastrointestinal nematode eggs, providing lasting protection against parasitic gastroenteritis and bronchitis throughout the grazing season.

Article Abstract

Two groups of first-year grazing cattle each were either left untreated as controls (group 1) or treated with an ivermectin bolus at turnout (group 2). Whereas group 1 suffered from dictyocaulosis, the bolus treated calves remained healthy. Shedding of lungworm larvae was completed prevented and gastrointestinal nematode egg output effectively reduced. During the 154 day grazing season the ivermectin bolus provided a season-long protection against parasitic gastroenteritis and bronchitis.

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