II. Effect on physico-chemical properties (Use of Hydrolyzed Poultry Feather and Beef Tallow in the Broiler Ration) (Department of Animal Husbandry)
| Autor: | Shiroma, Sadao, Hongo, Fujiya |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 1974 |
| Zdroj: | 琉球大学農学部学術報告 = The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus. 21:319-333 |
| ISSN: | 0370-4246 |
| Popis: | 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 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 紀要論文 |
| Databáze: | OpenAIRE |
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