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題 名 | 臺中秈17號糙米取代不同玉米對白肉雞生長性能及屠體性狀之影響=Effects of Dietary Replacement of Corn with Taichung Sen 17 Brown Rice on Growth Performance and Carcass Characteristics of Broilers |
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作 者 | 施柏齡; 范耕榛; 陳文賢; 賴明信; 李春芳; | 書刊名 | 畜產研究 |
卷 期 | 49:1 2016.03[民105.03] |
頁 次 | 頁68-75 |
分類號 | 437.111 |
關鍵詞 | 白肉雞; 臺中秈17號糙米; 屠體性狀; 生長性能; Broiler; Taichung Sen 17 brown rice; Carcass characteristics; Growth performances; |
語 文 | 中文(Chinese) |
中文摘要 | 為開發可用飼料資源以提升國內糧食安全,本試驗探討以臺中秈 17號糙米取代飼糧中玉米對白肉雞生長性能與屠體性狀之影響。試驗採用一日齡白肉雞 390隻,依體重分成 5組,試驗分為育雛期 (0-3週齡 )及生長期 (45週齡 )。以玉米-大豆粕為主要原料之基礎飼糧為對照組,以農試所育成之臺中秈 17號糙米,分別取代飼糧中玉米用量的 50%、75%或 100%,另第 5個處理組為於 100%取代組再添加 50 mg/kg的 β-胡蘿蔔素。試驗期間飼糧與飲水均提供任食,測定雞隻生長性能。試驗結束後,每組取 8隻雞犧牲,進行屠體性狀調查。試驗結果顯示,肉雞飼糧中以糙米取代玉米 50%到 100%,並不會影響白肉雞育雛期、生長期或全期的採食量、增重、飼料轉換率及育成率,也不會影響雞隻屠宰率與腹脂率,但較高糙米取代玉米飼糧會影響胸肉色澤 (P < 0.05)。糙米完全取代玉米時,則會明顯地降低雞肉風味 (P < 0.05);而完全取代組再添加 β-胡蘿蔔素並無法有效改善胸肉色澤。綜上所述,肉雞飼糧中以糙米完全取代玉米,雖不影響肉雞的生長性能,但雞肉色澤隨糙米取代量的增加而變淡,因此建議糙米適當的取代量為 50%。 |
英文摘要 | This experiment was conducted to study the effects of dietary replacement of corn with brown rice on growth performance and carcass characteristics of broilers. A total of 390 day-old broilers were randomly assigned into five groups. A corn-soybean meal basal diet was offered in the control group and Taichung Sen 17 brown rice was used to replace 50%, 75% or 100% of the corn in diets for the other three groups. In the fifth group, 50 mg/kg of β-carotene was supplemented into the 100% replacing diet. Feed and water were offered ad libitum during the five weeks trial period. Eight chickens from each treatment were sacrificed for measuring the carcass characteristics. Results showed that replacing 50% to 100% of corn with brown rice in diets did not influence the feed intake, weight gain, feed conversion ratio and survival rate of the broilers. Carcass dressing percentage and abdominal fat percentage of broilers were also not affected. However, birds fed higher brown rice diet showed the lighter breast meat color (P < 0.05). Moreover, the entire brown rice had significantly lower the flavor score (P < 0.05). Supplementation of β-carotene im diet could not increase the breast meat color. Results indicated that the optimal replacement ratio of corn with brown rice in broiler diet was 50%, when the growth and carcass performances were considered at the same time. |
本系統中英文摘要資訊取自各篇刊載內容。