Korean Journal of Veterinary Service (한국동물위생학회지)

The Korean Society of Veterinary Service (한국동물위생학회)
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Survey on claw lesions of sows in Korea

국내 모돈에 대한 발굽 병변 조사

  • Kim, Binn (College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University) ;
  • Jeong, Jongwha (College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University) ;
  • Jeong, Hyunkyu (Dodram Pig Farmers' Cooperative, Pig Special Hospital) ;
  • Han, Jeonghee (College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University)
  • 김빈 (강원대학교 수의과대학 및 동물의학연구소) ;
  • 정종화 (강원대학교 수의과대학 및 동물의학연구소) ;
  • 정현규 (도드람양돈조합 동물병원) ;
  • 한정희 (강원대학교 수의과대학 및 동물의학연구소)
  • Received : 2019.07.19
  • Accepted : 2019.12.19
  • Published : 2019.12.30
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Abstract

Claw lesion is one of the major causes of lameness in sows and the lameness is one of the reasons for culling of sows from the swine herd. This survey was conducted on sows in total of 8 farms with a total of 684 pigs. The lesions observed in the study were horizontal and vertical claw cracks (CWH & CWV), differences in the length of toes (T) and/or in the length of dew claws (DC) according to crates, breeds and parity of sows. Scores of claw lesions were assigned on 0, 1, 2, and 3 at each foot depending on the severity of the claw lesions. The sows' parity was classified into 1 to 2, 3 to 4, 5 to 8. Prevalence rate of claw lesions in sows raised on punched plastic crate was higher than that in sows raised on tribar crate. In prevlence rate by breeds, inbreed Landrace sows showed higher than that of Yorkshire sows. According to 4 claw lesions, the length of DC was the highest at parity 3~4 and CWV was the lowest at parity 3~4 in F1 crossbred sows raised on punched plastic crates, respectively. In Yorkshire breeds raised on punched plastic crates, the length of DC at parity 5~8 was the lowest and CWH was the highest at parity 3~4, respectively. In Landrace breeds raised on tribar crates, CWH was the highest at parity 1~2 and CWV was the lowest at parity 3~4, respectively. The high parity in F1 crossbred sows showed high prevalence rate of claw lesions than that of low parity and other inbreed sows, respectively. These results may be useful as elementary data in establishment of welfare quality protocol and preventive measures to reduce economic losses from craw lesions in sows.

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References

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