[Incidence of Parascaris equorum in foals and their mares after strategic use of wide-spectrum anthelmintics for several years].
Abstract: In this epidemiological survey 30 foals and their mares from seven breeding farms were investigated. Six farms used wide spectrum anthelmintics strategically at least for three years, on one farm no anthelmintic prophylaxis was practiced. Excretion of P.-equorum-eggs occurred in all breeding farms and in 80% of the foals, but in only one mare. In foals infection with roundworms was detected at the earliest 85 days post partum. Before first shedding of P.-equorum-eggs wide spectrum anthelmintics had been administered to two and to one foal(s) one and two times, respectively, to four animals three times and to one foal each four, five, six and seven times. After metaphylactic use of wide spectrum anthelmintics in the control of an infection with roundworms or other helminths, eggs of P. equorum were found in one foal already 12, 17, 54, 55, 70 and 71 days after treatment with Ivomec-P each and 65 days after use of Panacur in one foal. After application of Banminth roundworm eggs were detected 12, 27, 45, 47, 49 and 62 days in one foal each and 19 and 56 days in two foals each. In eight foals each P.-equorum-eggs were noticed 72 and 196 days after anthelmintic treatment.
Publication Date: 1995-02-01 PubMed ID: 7792776
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- Comparative Study
- English Abstract
- Journal Article
Summary
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This study explores the prevalence of the Parascaris equorum roundworm in foals after the strategic use of broad-spectrum anthelmintics – drugs used to eliminate parasitic worms – over several years, and shows that despite this usage, the incidence of infection remains high.
Research Sample and Method
- The study involved an epidemiological survey of 30 foals and their mares across seven breeding farms. Six of these farms had administered wide-spectrum anthelmintics for at least three years, while one farm had no prophylactic treatment in place.
- The research aimed to determine the prevalence and timing of P.-equorum-egg excretion, which signifies infection with the roundworm.
Findings
- All the breeding farms reported some incidence of P.-equorum-egg excretion and it was found in 80% of the foals. Only one mare was found to excrete P.-equorum-eggs.
- In foals, the earliest detection of roundworm infection was 85 days after birth.
- The study revealed frequent treatments of foals with wide-spectrum anthelmintics, ranging from one treatment for a single foal to seven treatments for another.
- After administering anthelmintics to control roundworm or other helminth infections, P. equorum eggs were still found in foals after variable periods, indicating a high resilience of the parasite and potential limitations to treatment efficacy.
Conclusion and Implications
- The study identified a concerning incidence of Parascaris equorum infection in foals, even with the strategic use of wide-spectrum anthelmintics over several years.
- This suggests that current treatment strategies may not be as effective as desired in controlling or eliminating the roundworm, highlighting a possible need for alternative or supplementary control measures.
- Further research is required to investigate potential issues related to drug resistance, long-term persistence of the roundworm, and ways to enhance the efficacy of treatments.
Cite This Article
APA
Rieder N, Beelitz P, Gothe R.
(1995).
[Incidence of Parascaris equorum in foals and their mares after strategic use of wide-spectrum anthelmintics for several years].
Tierarztl Prax, 23(1), 53-58.
Publication
Researcher Affiliations
- Institut für Vergleichende Tropenmedizin und Parasitologie, Ludwig-Maximilians-Universität München.
MeSH Terms
- Animals
- Anthelmintics / therapeutic use
- Female
- Helminthiasis / epidemiology
- Helminthiasis / prevention & control
- Helminthiasis, Animal
- Helminths / isolation & purification
- Horse Diseases / epidemiology
- Horses
- Incidence
- Parasite Egg Count / veterinary
- Seasons
Citations
This article has been cited 1 times.- Morsy K, Bashtar AR, Al Quraishy S, Adel S. Description of two equine nematodes, Parascaris equorum Goeze 1782 and Habronema microstoma Schneider 1866 from the domestic horse Equus ferus caballus (Famisly: Equidae) in Egypt. Parasitol Res 2016 Nov;115(11):4299-4306.
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