ANI35L/2000-cattleによる家畜福祉視点からの放牧飼育方式の評価の試み  [in Japanese] Animal Welfare Evaluation of Grazing environment by ANIMAL NEEDS INDEX: ANI35L/2000-cattle (Case Study)  [in Japanese]

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Author(s)

    • 小迫 孝実 KOSAKO Takami
    • 独立行政法人農業・生物系特定産業技術研究機構畜産草地研究所 National Institute of Livestock and Grassland Science
    • 深澤 充 [他] FUKASAWA Michiru
    • 独立行政法人農業・生物系特定産業技術研究機構畜産草地研究所 National Institute of Livestock and Grassland Science
    • 塚田 英晴 TSUKADA Hideharu
    • 独立行政法人農業・生物系特定産業技術研究機構畜産草地研究所 National Institute of Livestock and Grassland Science

Abstract

近年ドイツ語圏において家畜福祉を考慮した飼育環境総合評価基準として使用されているAnimal Needs Index (ANI)を用いて、条件の異なる放牧環境に対するANIの評価基準としての適性について検討した。EUのScientific Committee on Animal Health and Animal Welfare発行の「The welfare of cattle kept for beef production」におけるEUの農業地域を参考に選定した国内4ヵ所の放牧地について、ANI35L/2000-cattleを用いて放牧環境の評価・採点し、ANIによる評価の問題点を摘出した。査定に供した牧場は次のとおりであった。(1)秋田県K放牧地:日本短角種繁殖牛とその子牛約30組を約2,000haの山林で年間150〜180日、定置林間放牧。(2)岩手県O牧場:日本短角種及び黒毛和種繁殖牛約170頭を138haの草地で年間約250日、輪換放牧。(3)宮城県I牧場:黒毛和種繁殖牛85頭を約80haの草地で補助飼料給与しながら約250日、輪換放牧(妊娠中)、または時間制限定置放牧(分娩〜離乳)。(4)栃木県D牧区:乳用種去勢育成牛4頭を1haの草地で年間180日、輪換放牧。放牧関連項目の配点は-1〜16点で、ANI全評点の31.2%を占めていた。各牧場、放牧地の評点はそれぞれ(1)11点,(2)14.5点,(3)14点,(4)11.5点となった。全体的に放牧日数に偏重した査定項目となっており、評点には放牧期間の影響が大きく反映された。放牧環境条件の福祉性をより的確に評価するためには、地形や規模、植生など質的評価項目を加える必要があると考えられた。

We evaluated the applicability of the Animal Needs Index (ANI), a general evaluation standard of the farming environment for animal welfare in the German bloc, in the grazing environment. Four grazing lands with different grazing conditions were evaluated by ANI35L/2000 for cattle. The grazing conditions were as follows: (1) Range-K in Akita prefecture: About 30 Japanese Shorthorn cattle were grazed in 2,000ha of mountainous area for 150-180 days a year^<-1> in continuous grazing. (2) Farm-O in Iwate prefecture: 170 Japanese Shorthorn and Japanese Black cattle were grazed in 260ha of pasture for 250 days a year^<-1> in a rotational grazing system. (3) Farm-I in Miyagi prefecture: 85 Japanese Black cattle were grazed in 144ha of pasture with some concentrates for 250 days a year^<-1> in a rotational grazing system (for the gestation period) or an on-and-off system of continuous grazing (for the postpartum period until weaning). (4) Pasture-D in Tochigi prefecture: Four Holstein steers were grazed in 1ha of pasture for 180 days a year^<-1> in a rotational grazing system. The scores of the standards for grazing in ANI ranged from -1 to 16 occupying 31.2% of all of the scores in ANI. The scores for each grazing land were (1) 11 points, (2) 14.5 points, (3) 14 points, and (4) 11.5 points, respectively. These scores reflected the number of grazing days, because the standards for grazing in ANI were mainly comprised of the number of grazing days. We suggest that it is necessary to devise a more detailed standard such as the topography, the scale and the vegetation of the grazing lands for application to various grazing systems.

Journal

  • Animal Behaviour and Management

    Animal Behaviour and Management 42(2), 93-100, 2006

    Japanese Soceity of Livestock Management

References:  27

Cited by:  4

Codes

  • NII Article ID (NAID)
    110004758190
  • NII NACSIS-CAT ID (NCID)
    AN10578820
  • Text Lang
    JPN
  • Article Type
    Journal Article
  • ISSN
    1880-2133
  • NDL Article ID
    8024917
  • NDL Source Classification
    ZR22(科学技術--農林水産--畜産) // ZR4(科学技術--生物学--動物)
  • NDL Call No.
    Z18-817
  • Data Source
    CJP  CJPref  NDL  NII-ELS  J-STAGE 
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