@article{oai:az.repo.nii.ac.jp:00005146,
 author = {田中, 智夫 and 植竹, 勝治 and 江口, 祐輔 and Tanaka, Toshio and Uetake, Katsuji and Eguchi, Yusuke},
 journal = {麻布大学雑誌, Journal of Azabu University},
 month = {Mar},
 note = {EUを中心に産卵鶏の福祉的飼育方法についての研究が進められているものの,それらへの導入直後の時期における研究は非常に少ない。そこで本研究では,3つの飼育方式に導入された産卵鶏について,導入直後の空間利用と行動の変化を調査した。120日齢の白色のレグホーン産卵鶏181羽を供試し,バタリーケージに36羽(3羽/ケージ),福祉ケージに36羽(4羽/ケージ),エイビアリーに109羽を導入した。1羽あたりの面積は,それぞれ613cm^2, 1170cm^2, 1130cm^2であった。実験期間は,導入後の翌日から2週間とし,記録時間は1日4時間,観察は肉眼観察による10分間隔の走査サンプリング法を用いて行った。福祉ケージでは,各空間の利用割合が導入直後から安定していた。エイビアリーでは,導入1日目は78%の鶏が敷料床を利用していたが,日数を追うごとにその利用割合は有意に直線的に減少した(p<0.O1)。バタリーケージ,福祉ケージでは,導入直後から摂食行動が一定の割合で推移し,飼育環境への順応が早い事が示唆された。敵対行動は,エイビアリー(3.5±1.0%)に比べ,バタリーケージ,福祉ケージで有意に少なく(いずれも0.3±0.1%, p<0.001),バタリーケージ,福祉ケージでは社会順位が早期に形成される事が示唆された。エイビアリーでは,導入1日目の摂食行動の割合が低い値であったが,その後有意に直線的に増加し(p<0.01),それに伴い多段式金網床の利用割合も増加した(p<0.01)。慰安行動及び砂浴び行動は,いずれもエイビアリーが福祉ケージに比べ有意に少なかった(p<0.05)。この事から,エイビアリーでは,導入前の飼育方式の影響とエイビアリーの環境の複雑さゆえに,そこへの順応が他の飼育方式に比べ相対的に遅れると考えられた。, A variety of investigations about alternative systems and furnished cages for layers are conducted mainly in the EU. However, comparative studies about the behavior of laying hens just after introduction to these housing systems are few. Therefore, this study aimed to investigate the changes of location and behavior of laying hens just after introduction to three housing systems. In toral, 181 White Leghorns were used. Seventy-two birds were allocated to 12 battery cages with 3 birds per cage (613cm^2/bird) and 9 furnished cages with 4 birds per cage (1170cm^2/bird), and 109 birds were transferred to an aviary (1130cm^2/bird). Direct observations using scanning techniques were conducted over 2 weeks for 4h/day from the day following the introduction. Scan samples of location and behavior were taken at 10 min intervals. The proportion of birds that stayed at each location in the furnished cages was stable during the observation period. In the aviary, 78% of birds were observed on the floor on the first day, and thereafter the proportion linearly decreased (p<0.01). The proportions of birds eating in both the battery and furnished cages were stable, indicating that the caged birds would adjust to these environments within a short period. Aggression of birds was less in both the cages (both 0.3±0.1%) than in the aviary (3.5±1.0%, p<0.001), which means the early establishment of social order in both cage systems. In the aviary, the birds performed less eating behavior than in both the cages on the first day, and the proportion thereafter linearly increased (p<0.01), and the use of tiered wire floors with feeders accompanied this (p<0.01). Comfort behaviors, including dust-bathing, were less in the aviary than in the furnished cages throughout the observation period (both p<0.05). These results suggest that adjustment of aviary birds to their new environment had been delayed compared with caged birds because of the prerearing condition and the environmental complexity of the aviary., P(論文), 特集, application/pdf, FEATURE ARTICLES},
 pages = {205--208},
 title = {産卵鶏におけるケージ飼育の再評価 : 代替飼育法との比較による多面的検討},
 volume = {13/14},
 year = {2007},
 yomi = {タナカ, トシオ and ウエタケ, カツジ and エグチ, ユウスケ}
}