[Giardiasis in dogs in a breeding kennel]

Area of Science:

• Veterinary Parasitology
• Canine Health
• Protozoan Infections

Context:

• Giardia intestinalis is a significant protozoan pathogen affecting both humans and animals, including dogs.
• Previous studies indicate wide variations in Giardia prevalence based on detection methods, geography, and study populations.
• German Shepherd Dogs are a popular breed, making their health a relevant concern for breeders and owners.

Purpose:

• To determine the prevalence of Giardia infection (giardiasis) in German Shepherd Dogs within a specific breeding unit.
• To investigate the occurrence of Giardia cysts in puppies, adult females (bitches), and adult males.
• To assess the effectiveness of ornidazole and metronidazole treatments for giardiasis in dogs.

Summary:

• Over an 18-month period, 494 fecal samples from 134 German Shepherd Dogs (101 puppies, 28 bitches, 5 males) were examined using the magnesium sulphate flotation technique.
• Giardia cysts were detected in 36.2% of all samples, with significantly higher prevalence in puppies (53.2%) compared to bitches (7.0%) and adult males (3.4%).
• No correlation was found between diarrhea and Giardia shedding, nor was a clear transmission source identified between bitches and their litters. Peak shedding in pups occurred between 6 and 12 weeks of age. Treatment with ornidazole or metronidazole proved effective within seven days.

Impact:

• This study highlights the high prevalence of Giardia in German Shepherd puppies, emphasizing the need for targeted diagnostic and control strategies in breeding environments.
• Findings provide valuable data for veterinarians and breeders on the epidemiology of canine giardiasis in this specific breed.
• The study confirms the efficacy of standard antiparasitic treatments, offering practical therapeutic guidance for managing Giardia infections in dogs.