濕紅茶渣對白羅曼肉鵝飼養價值之評估

Evaluation of the feeding value of wet black tea leave residues in White Roman meat-type geese

王勝德(Sheng-Der Wang) ； 簡靖華(Ching-Hua Chien) ； 廖士傑(Shih-Chieh Liao) ； 沈士怡(Shih-Yi Shen)

《畜產研究》 54卷1期 (2021/03) Pp. 9-17

https://doi.org/10.6991/JTLR.202103_54(1).0002

摘要

茶渣是茶葉生產或加工過程必然的產出物，本試驗旨在評估濕紅茶渣應用於白羅曼肉鵝之飼養價值。滿4週齡之公、母白羅曼鵝共90隻，依性別分配至5個飼糧處理，每處理3欄，每欄3公3母共6隻。飼糧處理依飼養分期、限飼與否及有無採食濕紅茶渣，第一組為5－8週齡任食飼料及9－12週齡任食飼料之A5A9供作對照組，第二組為5－8週齡任食飼料而9－12週齡限飼20%飼料量之A5R9組，第三組為5－8週齡任食飼料而9－12週齡限飼20%飼料量但額外提供濕紅茶渣任食之A5R9T9組，第四組為5－8週齡限飼20%飼料量而9－12週齡任食飼料之R5A9組，第五組為5－8週齡限飼20%飼料量但額外提供濕紅茶渣任食而9－12週齡任食飼料之R5T5A9組。限飼20%飼料量係以對照組鵝隻前3至4日飼料任食量之80%提供，所有試驗鵝隻於13週齡均採飼料任食且不提供濕紅茶渣。結果顯示，5－8週齡R5A9組鵝隻之體增重低於對照組（P＜0.05），R5A9及R5T5A9組鵝隻之飼料採食量均顯著低於對照組（P＜0.05），R5T5A9組鵝隻之飼料轉換率顯著較對照組差（P＜0.05）。9－12週齡A5R9T9組鵝隻之飼料採食量飼料轉換率顯著低於對照組（P＜0.05）。5－12週齡或5－13週齡A5R9T9及R5T5A9兩組鵝隻之飼料採食量均顯著低於對照組（P＜0.05）。R5T5A9組鵝隻於8週齡之血清三酸甘油酯及於12週齡之血清總蛋白質含量均顯著低於對照組（P＜0.05），A5R9T9組鵝隻於12週齡之血清總蛋白質、總膽固醇及低密度脂蛋白膽固醇含量均顯著低於對照組（P＜0.05）。本試驗結論認為，白羅曼肉鵝於5－8週齡或9－12週齡減餵20%飼料量但額外提供濕紅茶渣任食，不影響5－12週齡或5－13週齡鵝隻之體增重及飼料轉換率而降低飼養成本。

關鍵字

濕紅茶渣 ； 白羅曼肉鵝 ； 飼養價值

並列摘要

Tea leave waste is the by-product from tea production or processing. The aim of this study was to evaluate the feeding value of wet black tea leave residues (WBTR) in White Roman meat-type geese. A total of ninety White Roman geese at 4 weeks of age were randomly allotted by gender to 5 groups according to feeding phase, feeding ration and WBTR supplementation. Each group was replicated in 3 pens, containing 3 ganders and 3 geese. Five groups with different rations were represented by A5A9, A5R9, A5R9T9, R5A9 and R5T5A9, respectively. The A5A9 control group represented the birds fed ad libitum from 5 to 8 and from 9 to 12 weeks of age. R5 or R9 represented the birds fed 80% feed provision, which was the feed intake calculated from the average of the control groups prior to 3 to 4 days between 5 to 8 or 9 to 12 weeks of age. T5 or T9 represented the birds with supplemental WBTR ad libitum from 5 to 8 or 9 to 12 weeks of age. Finally, all geese in each group were fed ad libitum without WBTR supplementation at 13 weeks of age. The results showed that lower body weight gain and feed intake, and poor feed conversion ratio (FCR) in the R5A9, R5A9 and R5T5A9, and the R5T5A9 group at 5 to 8 weeks of age, respectively (P ＜ 0.05). Moreover, lower feed intake and poor FCR were found in the A5R9T9 group when compared with the A5A9 group at 9 to 12 weeks of age (P ＜ 0.05). At the age between 5 and 12 weeks, feed intake of the A5R9T9 and R5T5A9 group were lower than that of the A5A9 group (P ＜ 0.05). The levels of serum triglyceride at 8 weeks of age and serum total protein at 12 weeks of age of the R5T5A9 group were lower than those of the A5A9 group (P ＜ 0.05). Serum total protein, total cholesterol and low-density lipoprotein cholesterol levels of the A5R9T9 group at 12 weeks of age were lower than those of the A5A9 geese group (P ＜ 0.05). We concluded that body weight gain and FCR at 5 to 12 weeks of age are was not affected by the 20% feed restriction with supplemental WBTR at 5 to 8 or 9 to 12 weeks of age in White Roman meat-type geese. Moreover, the feed cost can be decreased.

並列關鍵字

Wet black tea leave residues ； White Roman meat-type goose ； Feeding value