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Effect of Solid Side Chute Design for Individual Handling of Hanwoo (Korean Cattle)

한우의 개체관리를 위한 시각제어 유도로 효과

  • 최재관 (축산연구소) ;
  • 이창우 (축산연구소) ;
  • 이용준 (강원대학교) ;
  • 조광현 (축산연구소) ;
  • 최연호 (축산연구소) ;
  • 김형철 (축산연구소) ;
  • 김시동 (축산연구소)
  • Published : 2006.04.30

Abstract

Moving behavior of groups of Hanwoo was observed when solid side was applied along the straight single file chute. Dark blue liners (PVC coated fabric) were hung on the outer side along the steel bars of chute to block vision of cattle. Ten animals were grouped together in a batch to move through chute to the restrainter. Movement of animals through chutes were significantly faster when solid side with liners were applied than when they had open vision of flight zone. And the difference in movement time between of solid side and open side was even greater in a longer chute than in a shorter one. From the experiment with longer chute, we could not find any significant differences between presence or absence of solid sides in the time spent for the leaading cattle to enter the squeeze chute from crowd pen. But the average time spent for movement from squeeze gait to restrainter was 22.78±1.15 seconds with solid sides, which was much shorter than with open sides (40.56±4.46 seconds). Time required for batch of animals to move from crowd pen to restrainter and exit was much faster with solid sides than with open sides: 96.33±3.98 seconds vs. 121.89±5.54 seconds from leading animal to enter the squeeze chute until the last animal of the batch to exit restrainter and 104.56±3.89 vs. 131.22±6.42 seconds for the whole batch of animals to enter the squeeze chute and exit restrainter. Another experiment with shorter chute showed that animals balked to right angled edge of the crowed pen before entering squeeze chute. We could not find any differences in time requred for the leading animal to enter the crowd pen from holding pen. Total time spent from entrance of leading animal to crowd pen until the last animal to exit restrainter was shorter with solid sides than with open sides: 177.44±5.20 seconds vs. 193.44±7.46 seconds.

Keywords

Behaviour;Korean cattle;Squeeze chute

References

  1. 김형철, 최재관, 전기준, 정영훈, 이창우, 이용준. 2004. 농가단위 한우개량을 위한 검정체계 구축. 농가단위 한우검정을 위한 개체유도시설 및 능력 검정시스템 개발. 공동연구과제 연구보고서. 농촌진흥청
  2. Grandin, T. 1989. Behavioral principles of livestock handling. Prof. Anim. Sci. 5(2): I
  3. Grandin, T. 1993. Teaching principles of behavior and equipment design for handling livestock. J. Anim. Sci. 71:1065-1070
  4. Hutson, G. D. 1985. The influence of barley food rewards on sheep movement through a handling system. Appl. Anim. Behav. Sci. 14:263 https://doi.org/10.1016/0168-1591(85)90007-3
  5. Prince, J. H. 1977. The eye and vision. In: M. J. Swenson(Ed.) Dukes Physiology of Domestic Animals. p 696. Comell University Press, New York
  6. SAS User's Guide: Statistics, Version 6.0 Edition 1990. SAS Inst., Cary, NC
  7. Fell, L. R. and Shutt, D. A. 1989. Behavioral and honnonal response to acute surgical stress in sheep. Appl. Anim. Behav. Sci. 22:283 https://doi.org/10.1016/0168-1591(89)90023-3
  8. Grandin, T. 1980. Observations of cattle behavior applied to the design of cattle handling facilities. Appl. Anim. Ethol. 6:19 https://doi.org/10.1016/0304-3762(80)90091-7