Korean Journal of Organic Agriculture (한국유기농업학회지)

Korean Association of Organic Agriculture (한국유기농업학회)
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Effect of Perch Material Type on Performance, Blood Characteristics, and Feather Score of Layer Pullets on Floor during Growth Period

산란계 평사 사육시 육성기 홰 재질에 따른 생산성, 혈액성상, 깃털 손상도에 미치는 영향

  • 김희진 (국립축산과학원 가금연구소) ;
  • 손지선 (국립축산과학원 가금연구소) ;
  • 홍의철 (국립축산과학원 가금연구소) ;
  • 강환구 (국립축산과학원 가금연구소)
  • Received : 2021.07.29
  • Accepted : 2021.10.25
  • Published : 2021.11.30
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Abstract

The present study investigated the effect of perch material type (wood and steel) on performance, blood characteristics, and feather pecking. A total of 1,700, one-day-old female Hy-Line brown chicks were evenly assigned to two treatments (wood and steel). The body weight and uniformity of birds were investigated over a 10-week experimental period. Blood characteristics and feather pecking was conducted at week 10. The wood perch treatment (WP) and steel perch treatment (SP) did not differ in their body weight, uniformity, and serum biochemical profile (except inorganic phosphorus) of pullets. Inorganic phosphorus on serum in WP significantly higher than that in SP (P<0.05). Blood corpuscle composition (leukocyte, erythrocyte, and Heterophil / Lymphocyte ratio) of pullets did not show any significant differences among treatments at week 10. Serum corticosterone and feather score that is stress and welfare indices were not affected by the type of perch material. In conclusion, our results suggest that performance, blood characteristics, and feather pecking of pullets were not affected by the perch material type. The results of this study can serve as basic data for investigating the effects of perch type on layer pullets.

본 연구는 산란계 육성기 홰 재질(목재 및 철재)에 따른 체중, 혈액 특성 및 깃털 손상도를 평가하기 위해 수행되었다. 산란계(Hy-Line Brown) 초생추 암컷 1,700마리를 공시하여, 두 처리구에 10반복을 두어 pen 당 85수씩 균등하게 배치하였다. 산란계 육성기간 중 체중과 균일도는 2주마다 총 10주간 조사하였으며, 혈액 특성 및 깃털 손상도 조사는 10주에 진행하였다. 산란계 육성기 10주 동안 체중 및 체중 균일도에서 목재홰와 철재홰의 유의적인 차이가 없었으며, 혈청 생화학 분석 결과도 무기성 인 조절을 제외하고 유의적인 차이를 보이지 않았다. 혈청 내 인은 목재홰가 철재홰보다 유의적으로 높은 값을 나타내었다(P<0.05). 혈구 조성(백혈구, 적혈구, HE/LY 비율)도 두 처리구간의 유의적인 차이는 없었다. 스트레스와 복지지표로 사용되고 있는 혈청 내 corticosterone 함량과 깃털 손상도는 홰 재질에 따른 유의적인 차이를 보이지 않았다. 따라서 평사 사육 시에 산란계 육성기 동안의 홰 재질은 생산성, 혈액특성, 깃털 손상도에 영향을 미치지 않았다. 본 연구 결과는 산란계 육성기 동안 홰 재질에 대한 영향을 조사하기 위한 기초 자료로 사용될 수 있을 것으로 사료된다.

Keywords

Acknowledgement

본 연구는 농촌진흥청 고유연구사업(과제번호 : PJ014328)과 2021년도 농촌진흥청 국립축산과학원 전문연구원 과정 지원사업에 이루어진 것임.

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