Effect of a sustained-release intra-ruminal sulfamethazine bolus on Eimeria spp. oocyst output and weight gain of naturally infected lambs in the Mexican tropics

A low‐cost, automated parasite diagnostic system via a portable, robotic microscope and deep learning

“…For the Eimeria counting, the high level of agreement between hand and automated counting is clearly evident. Interestingly, a characteristic second “bump” in the oocyst count is observed approximately 1 week after initiating the treatment, as seen in prior reports . Furthermore, even at 2 weeks after treatment, the animal still has residual disease, indicating that a second course or second‐line drug is likely required to complete the cure.…”

Evaluation of intraruminal boluses dosed with sulfamethazine and selenium in goat kids naturally infected with Eimeria spp.

“…of excreted oocysts (44.44%). Previous studies by our research group, using bolus with sulfamethazine, reported quantities of oocysts excreted from 49.9% to 58.4% (Chávez Rivera et al 2005;Gutiérrez-Blanco et al 2006). In this study, the boluses with sulfamethazine were effective against coccidiois in small ruminants.…”

“…In Mexico, the lack of Se in soil, together with the high level of antagonistic minerals such as sulfur results in Se deficiency becoming an endemic problem. Previous studies from our research group have indicated that intraruminal boluses containing Se and SM (Gutiérrez-Blanco et al 2006) are suitable to prevent Se deficiency and coccidiosis. This dosage method has not been investigated for the control of coccidiosis and Se deficiency in small ruminants.…”

“…McDougald and Galloway (1973) observed that sulfonamides eliminated second-generation schizonts from 72 to 96 h post-inculcation. Other studies (Chávez Rivera et al 2005;Gutiérrez-Blanco et al 2006) have also recommend the use of intraruminal boluses with sulfamethazine to eliminate coccidiosis in small ruminants.…”