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The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus >
No.21 (1974/12) >

Title :II ブロイラー肉の化学的組成および腹部脂肪の理化学的性状におよぼす影響(ブロイラー飼料における羽毛粉と牛脂の利用)(畜産学科)
Title alternative :II. Effect on physico-chemical properties (Use of Hydrolyzed Poultry Feather and Beef Tallow in the Broiler Ration) (Department of Animal Husbandry)
Authors :城間, 定夫
本郷, 富士弥
Authors alternative :Shiroma, Sadao
Hongo, Fujiya
Issue Date :1-Dec-1974
Abstract :屠殺解体試験の終了した前報と同一の供試鶏について, 同様の試験区分に従い, 胸筋, 大腿筋の一般化学組成, および腹部脂肪の理化学的性状を調査し, 蛋白質源(魚粉給与および羽毛粉給与の両試験区)およびエネルギー水準の飼料的, 肉質的効果について検討した。その結果を要約すると大体次の通りである。1.飼料中の蛋白質源は, 胸筋および大腿筋の一般化学的組成に有意な影響を与えなかった。2.牛脂添加による高エネルギー飼料化によって, 大腿筋の乾物量と胸筋の灰分量に増加が認められた(P<.05)。3.大腿筋の水分は, 両試験区共, 雄よりも雌が高い値を示していた(P<.05)。4.大腿筋の粗蛋白質はエネルギーと蛋白質源間に, さらに胸筋の粗灰分は, 性別と蛋白質源間に, それぞれ交互作用が認められた。5.牛脂添加による高エネルギー化は, 両試験区共に, 腹部脂肪のヨウ素価を著しく減少させた(P<.01)。6.腹部脂肪の理化学的性状は, 両試験区共に, 雄雌間に差が認められなかった。7.腹部脂肪のケン化価, エステル価およびヨウ素価に対して, 蛋白質源とエネルギー間に交互作用が認められた。
Breast, thigh muscle and abdominal depot fat samples of 48 White Cornish x White Rock birds sacrificed at age of 58 days, were used for determination of the effect of protein source, energy level and sex on the proximate compostions of the former two and physico-chemical characteristics of the latter samples. For enrichement of ration energy level, beef tallow was added and as protein sources fish and feather meal were employed. The results of these investigations were summarized as follows : 1. Protein source caused no significant differences in the amount of any proximate nutrients of both breast and thigh muscles studied. 2. Ration without beef tallow or standard energy level increased (P<.05) moisture content of thigh muscle while ration with beef tallow or high energy content elevated dry matter (P<.05) of thigh muscle and ash content (P<.01) of breast, muscle. 3. Female had higher (P<.05) moisture value in thigh muscle than did male. 4. Two way interactions of EP in crude protein content of thigh and PS in ash content of breast muscle were found. 5. Ration with beef tallow or high energy lowered (P<.01) the iodine number of abdominal depot fat of the birds. 6. No sex differences were found in the physico-chemical properties studied. 7. Two way interactions of EP were observed in saponification value, ester value and iodine number of abdominal depot fat.
Type Local :紀要論文
ISSN :0370-4246
Publisher :琉球大学農学部
URI :http://hdl.handle.net/20.500.12000/4384
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.21 p.319 -333
Appears in Collections:No.21 (1974/12)

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