頁籤選單縮合
題 名 | 利用有機乾桑葉生產有機山羊之研究=Research on the Organic Dry Mulberry Leaves in Organic Goat Production System |
---|---|
作 者 | 楊深玄; 蘇安國; 王勝德; | 書刊名 | 畜產研究 |
卷 期 | 43:4 2010.12[民99.12] |
頁 次 | 頁351-360 |
分類號 | 437.58 |
關鍵詞 | 芻料; 有機山羊; 桑葉; Forage; Organic goat; Mulberry leaves; |
語 文 | 中文(Chinese) |
中文摘要 | 本試驗旨在探討有機乾桑葉(Morus alba)用以生產有機山羊之效益。以台灣黑山羊之閹公羊為供試動物,12 頭山羊分為 A 組【有機盤固(Digitaria decumbens)乾草】、B 組(50% 有機盤固乾草及 50% 有機乾桑葉)、C 組【非有機百慕達(Cynodon dactylon)乾草】及 D 組(50% 非有機百慕達乾草加 33.3% 有機乾桑葉及 16.7% 有機乾桑幹)進行代謝試驗。另 18 頭山羊分為 A組(含 20% 有機乾桑葉)、B 組(含 38% 有機苜蓿乾草)及對照組(傳統飼養法),進行 121 天之飼養試驗。在活體消化試驗方面,有機乾桑葉所含之粗蛋白質、灰分含量與有機苜蓿乾草相近,粗脂肪含量則較有機苜蓿乾草高,惟其粗纖維含量較低,但對試驗羊隻具有良好之適口性。有機乾桑葉之總可消化營養分、可消化有機質、可消化粗蛋白質與可消化無氮抽出物之表面消化率均高於其他供試芻料。在飼養試驗方面,A、B 兩組羊隻之結束體重、平均日增重、飼料換肉率及血清尿素氮濃度均顯著低於對照組(P < 0.05),且兩組羊隻之單位增重成本分別為對照組之 193 及239%,而 A 組則較 B 組節省增重成本 23.8%。顯示在有機農產品生產規範下,生產有機山羊之成本遠較傳統飼養法高。 |
英文摘要 | Thirty castrated Taiwan black goats were selected to investigate the effectiveness of organic dry mulberry leaves (Morus alba) on organic goat production system. Twelve kids were divided into four groups for evaluating apparent digestibility of the different forages. Another 18 goats were assigned by body weight into three groups. Group A and group B, which were managed by the rules of organic meat goat production practice, were fed the rations containing 20% organic dry mulberry leaves or 38% organic alfalfa hay. The kids in group C were fed the 70% concentrate and 30% forage and as a control. The result showed that the apparent digestibility of crude protein and ash in organic dry mulberry leaves were close to those of organic alfalfa hay. The apparent digestibility of digestible organic matter, digestible crude protein and digestible nitrogen free extract were the highest in organic dry mulberry leaves than those of the other forages. The body weight at the end of experiment, the concentration of serum urea nitrogen and average daily gain in Groups A and B were significantly (P < 0.05) lower compared with control group. Meanwhile, the feed costs per kilogram live weight gain in group A or B were 193% or 237% of that in control group. Goats in group A whose ration containing 20% organic dry mulberry leaves reduced the production cost of up to 23.8% on an organic-goat production system than that containing 38% organic alfalfa hay. It is suggested that the effectiveness of organic goat production system was lower than that of conventional feeding system, whereas organic dry mulberry leaves had positive effect than the other forages. |
本系統中英文摘要資訊取自各篇刊載內容。