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Agustina, Kadek Karang
- Reducing Zoonotic and Internal Parasite Burdens in Pigs Using a Pig Confinement System
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Materials and Methods: Ten PCS households were selected together with 10 households practising traditional scavenging systems. Five pigs were monitored per household every 3 months for 15 months and blood and feces collected. Pigs received a single dose of oxfendazole at 30 mg/kg at baseline. Qualitative fecal examinations for intestinal parasite stages were performed, and serum was tested for antibodies to cysticercus of Taenia solium, Trichinella spp., and Toxoplasma gondii.
Results: Based on fecal examination, the prevalence of pigs positive for parasite eggs was reduced in PCS pigs over consecutive samplings (Ascaris suum [14.3% to 0%], Trichuris suis [46.9% to 8.3%], Strongyle-type eggs [81.6% to 8.3%], Physocephalus spp. [6.1% to 0%], and Metastrongylus apri [20.8% to 0%]) compared with increases in the number of pigs positive for parasite eggs in non-PCS pigs (T. suis [20-61.5%], Strongyle-type [60.4-80.8%], Physocephalus spp. [8.3-15.4%], and M. apri [20.8-34.6%]) and little change in pigs positive for A. suum (18.8-19.2%). While the prevalence of pigs with antibodies against to cysticerci of T. solium reduced in PCS pigs from 18% to 14%, the prevalence in non-PCS pigs increased from 42% to 52%. Antibodies to Trichinella were not detected, but the prevalence of T. gondii antibodies increased from 6% to 10% in PCS pigs and from 7% to 24% in non-PCS pigs.
Conclusion: These data demonstrate the potential of a PCS to reduce the prevalence of pigs infected with zoonotic and internal parasites and thus the risk to human and pig health.
Authors
Kadek Karang Agustina
1,
Ida Bagus Ngurah Swacita
1,
Ida Bagus Made Oka
1,
I. Made Dwinata
1,
Rebecca Justin Traub
2,
Colin Cargill
3,
I. Made Damriyasa
4
Affiliations
1 Department of Veterinary Public Health, Udayana University, PB. Sudirman St. Campus, Denpasar, Bali-80223, ID
2 Department of Parasitology, University of Melbourne, Melbourne, Victoria, AU
3 Department of Livestock Production, South Australian Research and Development Institute, Hartley Grove, Urrbrae SA-5064, AU
4 Department of Parasitology, Center Studies on Animal Diseases Udayana University, Markisa Alleyway of Sesetan St. No. 8 Denpasar, Bali-80223, ID
1 Department of Veterinary Public Health, Udayana University, PB. Sudirman St. Campus, Denpasar, Bali-80223, ID
2 Department of Parasitology, University of Melbourne, Melbourne, Victoria, AU
3 Department of Livestock Production, South Australian Research and Development Institute, Hartley Grove, Urrbrae SA-5064, AU
4 Department of Parasitology, Center Studies on Animal Diseases Udayana University, Markisa Alleyway of Sesetan St. No. 8 Denpasar, Bali-80223, ID
Source
Veterinary World, Vol 10, No 11 (2017), Pagination: 1347-1352Abstract
Aim: This study was designed to validate the effectiveness of the pig confinement system (PCS) in reducing the prevalence of zoonotic and internal parasite burdens in pigs.Materials and Methods: Ten PCS households were selected together with 10 households practising traditional scavenging systems. Five pigs were monitored per household every 3 months for 15 months and blood and feces collected. Pigs received a single dose of oxfendazole at 30 mg/kg at baseline. Qualitative fecal examinations for intestinal parasite stages were performed, and serum was tested for antibodies to cysticercus of Taenia solium, Trichinella spp., and Toxoplasma gondii.
Results: Based on fecal examination, the prevalence of pigs positive for parasite eggs was reduced in PCS pigs over consecutive samplings (Ascaris suum [14.3% to 0%], Trichuris suis [46.9% to 8.3%], Strongyle-type eggs [81.6% to 8.3%], Physocephalus spp. [6.1% to 0%], and Metastrongylus apri [20.8% to 0%]) compared with increases in the number of pigs positive for parasite eggs in non-PCS pigs (T. suis [20-61.5%], Strongyle-type [60.4-80.8%], Physocephalus spp. [8.3-15.4%], and M. apri [20.8-34.6%]) and little change in pigs positive for A. suum (18.8-19.2%). While the prevalence of pigs with antibodies against to cysticerci of T. solium reduced in PCS pigs from 18% to 14%, the prevalence in non-PCS pigs increased from 42% to 52%. Antibodies to Trichinella were not detected, but the prevalence of T. gondii antibodies increased from 6% to 10% in PCS pigs and from 7% to 24% in non-PCS pigs.
Conclusion: These data demonstrate the potential of a PCS to reduce the prevalence of pigs infected with zoonotic and internal parasites and thus the risk to human and pig health.