• Korean Journal of Veterinary Service
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• v.15 no.2
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• pp.121-127
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• 1992

To investigate the prevalence of swine internal parasitic infection, the fecal examinations were carried out between July. 1991. and June. 1992. The samples of 3, 126 swine feces and sawdust were collected from 6 sawdust fermentative and 6 cement-floored pigsties in Chonnam area. The results obtained were as follows. 1. The rate of swine internal parasitic infection, 38.5％ from sawdust fermentative pigsty was higher than 22.2％ from cement-floored pigsty. 2. Of the swine internal parasites detected, Balantidium cole, 21.4% from growing pig of sawdust fermentative pigsty, and 21.3％ from sow of cement-floored pigsty was the must commonly encountered. The infection rate of another parasites including Trichuris suis in sawdust fermentative pigsty was also higher than cement-floored pigsty. 3. Larvae of Strongyloides ransomi was the highest infection rate (40.0%) at sawdust of the sawdust fermentative pigsty.

• Korean Journal of Veterinary Service
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• v.16 no.2
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• pp.97-102
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• 1993

This study was performed to survey on the prevalence of swine internal parasites at 12 piggeries being operated by the sawdust fermentative pigsty in Kyongnam central area. To investigate the effects of viability of eggs, larva and cysts, temperatures at the underlayer of the sawdust floor and rooms of pens were taken four times each season for one year. In a pig farms which have been operated by the sawdust fermentative pigsty, eggs of Ascar is suum(8.8%), Trichr is suis(18.3%), Oesophagostomum sp(9.4%), Strongyloides ransomi(1.3%), Hyostrongylus sp(3.8%) and Metastronylus apri(2.3%) were detected from 480 heads of Pigs. Cysts and oocysts of Coccidia(12.7%), Balantidium coli(5.4%) were also detected form 480 heads of pigs. The change of the temperature in the pig room was variable between $13^{\circ}C\; to\; 27^{\circ}C$ accord-ing to outside condition, whereas that in underfloor was consistently stable between $28^{\circ}C \;to\; 31^{\circ}C$ which was strictly suitable for the development of eggs, larva and cysts.

• Korean Journal of Veterinary Research
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• v.31 no.4
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• pp.509-513
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• 1991

Preliminary survey on the prevalence of swine internal parasites was carried out at 91 pens of 4 piggeries being operated by the sawdust fermentation floor system in Kyunggi province. To investigate the effects of viability of eggs., larva and cysts, temperatures at the underlayer of the sawdust floor and rooms of pens were taken three times a day for 8 days. In a pig farm which has been operated by the sawdust fermentation floor system for G years, eggs and larva of Ascaris suum, Trichuris suis, Oesophagostomum sp., Hyostrongylus sp. and Strongyloides ransomi were detected from 42(70.0%) among 60 pens. Cysts and oocysts of coccidia, Balantidium coli, Entamoeba sp. were also detected from 50(83.3%) among 60 pens. In three pig farms which have been operated by the sawdust fermentation floor system for one year, eggs and larva of nematoda were not detected at all, and the contamination rates of protozoan cysts and oocysts was relatively low situation. The change of the temperature in the pig room was variable according to outside condition, whereas that in underfloor was consistently stable between $28^{\circ}C$ to $30^{\circ}C$ which was strictly suitable for the development of eggs, larva and cysts.

• Korean Journal of Veterinary Research
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• v.9 no.2
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• pp.43-47
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• 1969

In a survey of the internal parasites of 1000 swine at Quelpart Island (Cheju-do), Incidence of the parasites was 99.6 percent and negative result was 0.4 percent only. The results was obtained as follows; Metastrongylus apri-51.6% Ascarops strongylina-23.5% Hyostrongylus rubidus -4.1% Trichuris suis -34.8% Ascaris lumbricoides-64.3% Cesophagostomum spp. -74.9% Strongyloides ransomi-8.1% Cysticercus cellulosae -3.8% Cysticercus tenuicollis -17.1% Echinococcus -11.8% Coccidia -61.5% Balantidium coli -23.4%.

• Korean Journal of Veterinary Research
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• v.15 no.2
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• pp.309-314
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• 1975

In survey for internal parasites of 395 heads of swine by fecal examination at ict, incidences of each parasite were obtained as follows: Giardia lamblia 1.0% Entamoehaspp. 55.4 Eimeria& Isospora spp. 22.5 Balantidium coli 66.6 Metastrongylus elongatus 17.6 Ascaris suum 25.6 Oesophagostomun dentatum 29.1 Hyostrongylus ryubidus 14.6 Trichuris suis 4.2 Strongyloides ransomi 7.2 Mecistocirrus digitatus 1.0 Check-list for the internal parasites of swine made by all the materials repor years from 1920 to 1975 in Korea is as follows: No. Parasites Habitat References 1. Ascaris lumbricoides small intestine Kawamura(1923) 2. Oesophagostomum dentatum large intestine Kawamura(1923) 3. Echinococcus veterinorum lung & liver Kawamura(1923) 4. Cysticercus cellulosae muscle Yunoba(1923) 5. Sarcooystis sp. muscle Arahayase(1927) 6. Entamoeba polecki intestine Kuwabara(1931) 7. Balantidium coli large intestine Huruyama(1931) 8. Metastrongylus elongatus lung Lee(1956) 9. Gongylonema pulckrum oesophagus Isshiki(1960) 10. Ascarops strongylina stomach Isshiki(1960) 11. Cysticercus tenuicollis peritoneum Isshiki(1960) 12. Cysticercus bovis? diaphragm Isshiki(1960) 13. Toxoplasma gondii interna organs Mun(1960) 14. Trichuris suis large intestine Lee et al.(1963) 15. Stephamirus dentatus feces Lee et al.(1963) 16. Spirometra mansonides fat layer of muscle Jang(1964) 17. Hyostrongylus rubidus stomach Kim et al.(1969) 18. Strongyloides ransomi feces Kim et al.(1969) 19. Eimeria perminuta feces Jang(1972) 20. E. debrieki feces Jang(1972) 21. E. polita feces Jang(1972) 22. E. scabra feces Jang(1972) 23. E. scrofae feces Jang(1972) 24. Isospora suis feces Jang(1972) 25. Entamoeba coli feces Jang(1975) 26. Mecistocirrus digitatus feces Jang(1975) 27. Giardia lamblia feces Jang(1975).

• Korean Journal of Veterinary Service
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• v.17 no.1
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• pp.25-31
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• 1994

In order to investigate the internal parasitic infection, fecal samples were collected from weaning pig(n=123), porker(n=418) and sow(n=121) in 49 sawdust fermentative pigsty of Chonbuk district. The prevalence and identification of internal parasites were determined by the fecal examination using the floatation and /or sedimentation methods and microscopical examination, respectively. The results were obtained as follows ; 1. The detection rate of parasite - eggs from 662 fecal samples was 86.6%. 2. The infection rate of parasite-egg 96.4% in porker, 76.9% in sow, 62.6% in weaning pig, in order. 3. In the concern of mired infection such as single, double triple and quadraple, the rate was 42.3%, 28.7%, 12.2% and 3.3%, respectively. 4. Ten kinds of the detected eggs were isolated from 662 fecal samples. They were classified as Balantidium coli (63.6%), Trichuris suis(24.8%), isospora spp.(23.5%), Oesoohangostomum spp.(17.8%), Ascaris suum(11.8%), Hyostronylus rubiddus (2.8%), strongyloides spp. (1.7%), Gnathostoma spp. (1.5%), Stephanurus dentatus(1.3%) and Metastrongylus spp. (0.7%), in order.

• Korean Journal of Veterinary Research
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• v.42 no.1
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• pp.109-113
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• 2002

This is the first case report of Stephanurus dentatus infection of a feral pig in Korea. In late April, 2000, a weakened feral pig was caught by blow gun from a very low level mountain near the Gyeongsang National University. We autopsied the feral pig in the laboratory of veterinary anatomy at the College of Veterinary Medicine. A total of 27 adult parasites, 11 females and 16 males, and numerous eggs were observed from the cysts formed in the perirenal tissues and ureters. The average size of males was $25.1{\pm}3.2mm$ long and of the females was $34.2{\pm}2.9mm$. The worms were stout, the females being about 2mm broad, and the internal organs were partly visible through the cuticle. The shape of thin-shelled eggs found in the cysts of perirenal tissues and ureter was ellisoidal and oval, and measured $40{\sim}65{\times}90{\sim}115{\mu}m$. The adult parasites were found in cysts which varied from 0.6 to 4cm in diameter, each cyst usually containing a pair of adult worms embedded in green pus. The ureter was thickened and almost occluded, with consequent hydronephrosis.