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No.24 (1977/12) >

 
Title :沖縄における水牛の体型の島嶼間比較と体各部位間の相関(畜産学科)
Title alternative :Comparison of body size of water buffaloes in Okinawa islands and correlations among traits(Department of Animal Husbandry)
Authors :新城, 明久
Authors alternative :Shinjo, Akihisa
Issue Date :1-Dec-1977
Abstract :沖縄の水牛の体型を島嶼間で比較するとともに体尺測定値相互間の相関係数を求めた。体尺測定は3才以上の雌, 雄および去勢雄について, 与那国島, 石垣島, 西表島, 小浜島, 沖縄島, 南大東島および北大東島の7つの島で行った。頭数は雌94頭, 雄39頭, 去勢雄19頭であった。体尺は体高, 体長, 胸囲など13部位について測定した。島別の頭数を重みづけした加重平均値でみると, 雌, 雄および去勢雄の体高は124,129,130cm, 体長143,150,146cm, 胸囲195,202,205cm, 胸深72,75,76cm, 腰角幅52,55,55cmであった。体型の島嶼間差が雌, 雄および去勢雄ともにみられた。特に沖縄島の雌の体型は他の島々に比較し小さかった。体尺測定値相互間の相関係数は雌, 雄および去勢雄ともにすべて正の値であった。これらの相関係数は去勢雄で最も高く, 次いで雌, 雄の順に低くなった。これら水牛の体各部位間の相関係数は牛のそれより低い値であった。
This paper is concerned the comparison of measurements of body size of water buffaloes (swamp type) in Okinawa islands and correlation among traits of body parts. Thirteen characters of the animals over three years old were measured and compared among islands. The numbers of buffaloes examined were 97 females, 39 males and 19 castrated males. These animals were from Yonaguni, Ishigaki, Kohama, Iriomote, Okinawa, Minami-Daito and Kita-Daito islands. The average body measurements, which were weighted for number of buffaloes in each island, of females, males and castrated males for withers hight, oblique body length, chest girth, chest depth and hip width were 124,129,130; 143,150,146; 195,202,205; 72,75,76; and 52,55,55cm, respectively. The differences in body measurements among islands were significant in these three groups. Especially, body size of females in Okinawa island was smaller than those in other islands. All correlation coefficients obtained among possible pairs of 12 characters in females, males and castrated males, except horn length, were positive. Castrated males showed the highest coefficients, while females and males presented intermediate and the lowest values. It was found that the correlation coefficients among traits in buffalo were lower than those in cattle.
Type Local :紀要論文
ISSN :0370-4246
Publisher :琉球大学農学部
URI :http://hdl.handle.net/20.500.12000/4251
Citation :琉球大学農学部学術報告 = The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus no.24 p.457 -463
Appears in Collections:No.24 (1977/12)

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