Coccidial infections in ranch mink

Area of Science:

• Veterinary Parasitology
• Animal Nutrition
• Wildlife Health

Background:

• Coccidiosis is a significant parasitic disease affecting mink health and productivity.
• Young mink are particularly vulnerable to the adverse effects of coccidial infections.
• Effective control strategies are crucial for the economic viability of mink farming.

Purpose of the Study:

• To evaluate the impact of coccidial infections on the growth and survivability of young mink.
• To assess the efficacy of two anticoccidial agents, lasalocid and an antibiotic-sulfonamide preparation, in controlling coccidiosis in mink.
• To determine the effect of these treatments on key performance indicators such as weight gain, mortality, and oocyst shedding.

Main Methods:

• A field study was conducted over a three-month period (April-June 1976).
• Mink were divided into control and treated groups, with treatments administered via a standard pelleted ration.
• Key metrics measured included weight gains, mortality rates, and fecal oocyst counts.

Main Results:

• Anticoccidial treatment significantly reduced mink mortality (P < 0.001).
• No significant differences in weight gains were observed between control and treated groups.
• Both the antibiotic-sulfonamide preparation and lasalocid effectively reduced oocyst discharge, with the former showing greater efficacy.
• Increased oocyst shedding was noted in adult female mink during the parturition to weaning period.

Conclusions:

• Anticoccidial treatments are effective in reducing mortality associated with coccidial infections in young mink.
• While not significantly improving weight gain, these treatments help manage parasite load by reducing oocyst shedding.
• Further research may be warranted to understand oocyst shedding patterns in adult female mink during lactation.