Effect of three sustained‐release devices on parasitic bronchitis in first year calves

Abstract

technique is used in cases of tracheobronchial rupture in humans (Pratt and others 1984). Although only five of the previously reported cases have survived surgery, it has been shown that good results are possible with careful anaesthetic and surgical technique (White and Milner 1995). This case highlights the unexpected sequelae that may follow undetectable intrathoracic trauma. However, the transitory period of wellbeing coupled with a radiographic finding of tracheal diverticulum should alert the clinician.

Acute Phase Proteins in Response to Dictyocaulus viviparusInfection in Calves

“…The specific antibody response reflecting patent D. viviparus infection was measured in serum using a diagnostic ELISA kit (Ceditest, IDO-DLO, Lelystadt, The Netherlands). In experiments I and III, infections were also confirmed by demonstration of lungworms at slaughter of the calves according to procedures described by [2] and [6] and/or by demonstration of larvae in faeces according to [12]. …”

Lungworm in cattle: epidemiology, pathology and immunobiology

“…In all but one bolus-treated group in one study (Taylor et al, 1997), post-challenge lungworm burdens in anthelmintic-treated animals were consistently much reduced compared to those in naïve controls and were generally similar amongst peer groups exposed to various strategic regimes or in untreated controls. In some studies there was an inverse relationship between the effectiveness of the anthelmintic regime in controlling lungworm infection and the level of protective immunity (Borgsteede et al, 1998). Also of interest is the observation that cattle exposed to natural lungworm challenge (Forbes and Rice, 2000) or induced infections (Taylor et al, 2000) can seroconvert to D. viviparus in the presence of effective concentrations of anthelmintic.…”