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枝肉格付形質および画像解析形質が午枝肉価格に与える影響の市場間比較 OAK
岡本, 圭介; 浜崎, 陽子; 大澤, 剛史; 丸山, 新; 加藤, 貴之; 口田, 圭吾; OKAMOTO, Keisuke; HAMASAKI, Yoko; OSAWA, Takefumi; MARUYAMA, Shin; KATO, Takayuki; KUCHIDA, Keigo.
Digital images of the rib eye area at the 6th and 7th ribs of Japanese Black steers were taken using photographing equipment at meat processing plants in area A and area B. The ratio of marbling area to rib eye area (FAR),overall coarseness of marbling,coarseness of the largest marbling particle in the rib eye,ratio of minor and major axes of the rib eye,and complexity of the rib eye shape were calculated by image analysis. The carcass traits considered were carcass weight, rib eye area,rib thickness,subcutaneous fat thickness,BMS number,and BFS grade. The influence of the beef carcass traits assigned by a grader and image analysis traits on the carcass unit price in each market was investigated. The BMS number had the highest impact on the carcass unit...
Palavras-chave: 画像解析; 牛枝肉価格; 黒毛和種; Image analysis; Price of beef carcass; Japanese Black.
Ano: 2007 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3116
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黒毛和種枝肉横断面の画像解析形質ならびに枝肉形質に関する遺伝的パラメータの推定 OAK
大澤, 剛史; 口田, 圭吾; 加藤, 貴之; 鈴木, 三義; 三好, 俊三; OSAWA, Takefumi; KUCHIDA, Keigo; KATO, Takayuki; SUZUKI, Mitsuyoshi; MIYOSHI, Shunzo.
BMSナンバーは,脂肪交雑の面積割合,脂肪交雑粒子の大きさや形状などについて総合的に評価された数値と考えられる.これら各要因について画像解析手法を用いて数値化し,遺伝的パラメータを推定することを本研究の目的とした.供試材料は,2000年4月から2002年3月にかけて,北海道内の枝肉市場に上場された黒毛和種2,998頭である.第6~7肋骨間を切開した枝肉左半丸の横断面画像について画像解析を行い,脂肪交雑のロース芯に占める面積割合(脂肪面積比),脂肪交雑粒子の全体の粒子のあらさ,最大粒子のあらさ,ロース芯の短径・長径比およびロース芯形状の複雑さの5形質を画像解析形質として求めた.また,枝肉形質として枝肉重量,ロース芯面積,ばらの厚さ,皮下脂肪厚,歩留基準値,BMSナンバーおよびBCSナンバーの7形質をそれぞれ取り上げた.母数効果として年度ごとの季節,出荷月齢および性別を,変量効果として肥育農家を考慮し,遺伝率,遺伝ならびに表型相関係数が推定された.画像解析形質の遺伝率は,脂肪面積比(0.57),全体の粒子のあらさ(0.34)および短径・長径比(0.32)において中程度から高い値が推定された.BMSナンバーと脂肪面積比(0.97)および全体の粒子のあらさ(0.68)の遺伝相関係数が正の高い値であった. Marbling scores assigned by graders are comprehensively evaluated with consideration of the ratio of marbling area to ribeye area (FATPER),coarseness of marbling,etc. The purposes of this study were to...
Palavras-chave: Japanese Black; Image analysis; Genetic parameters; Marbling.
Ano: 2004 URL: http://ir.obihiro.ac.jp/dspace/handle/10322/941
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