Effects of dietary crude protein and metabolizable energy levels on the growth performance of White Roman Geese between 4 and 8 weeks of age

飼糧粗蛋白與代謝能含量對4至8週齡白羅曼肉鵝生長表現的影響

王錦盟(Chin-Meng Wang) ； 張雁智(Yen-Chih Chang) ； 胡見龍(Chien-Lung Hu) ； 賈玉祥(Yu-Shine Jea)

《畜產研究》 52卷3期 (2019/09) Pp. 176-181

摘要

The purpose of this study was to evaluate the effects of dietary crude protein (CP) and metabolizable energy (ME) levels on growth of White Roman geese from 4 to 8 weeks of age (WOA). Experiment was a 2 × 3 factorial arrangement with two CP levels (13 and 15%) and three ME levels (2, 400, 2, 700 and 3,000 kcal/kg). Results showed that there was no difference on feed intake or BW gain for the geese fed either the 13 or 15% crude protein diets. The feed conversion ratio (FCR) of geese providing the 13% CP diet was significantly (P ＜ 0.05) better than that giving the 15% CP diet. Calculating the protein intake of geese, a 38.2 g/goose/day protein intake was sufficient for BW gain of geese from 4 to 8 WOA. The decrease of dietary ME significantly (P ＜ 0.01) increased the feed intake and BW gain for geese fed 13% CP diet from 4 to 8 WOA. The FCR was improved by increasing dietary ME. In conclusion, the provision of 13% crude protein with 2,700 kcal/kg ME diet was sufficient for the geese growth from 4 to 8 WOA.

關鍵字

Goose ； Crude protein ； Metabolizable energy

並列摘要

本試驗目的在評估不同粗蛋白（CP）和代謝能（ME）含量對4至8週齡白羅曼肉鵝生長表現的影響。試驗以192隻4週齡白羅曼鵝為試驗動物。試驗採2×3複因子設計，即二種粗蛋白質含量（13及15％）與三代謝能含量（2,400、2,700及3,000kcal/kg）。結果顯示，試驗期間肉鵝給飼13或15％粗蛋白質飼糧，對肉鵝的採食量或增重均無顯著影響。給予13％CP飼糧之肉鵝飼料轉換率（FCR）顯著（P＜0.05）優於15％CP飼糧者。計算鵝隻的蛋白質攝入量，顯示4到8週齡肉鵝攝取38.2克／天的蛋白質，足以使鵝隻有良好的生長表現。降低13%CP飼糧的ME含量，顯著（P＜0.01）增加4至8週齡鵝隻的採食量和增重，而增加飼糧ME含量可改善鵝隻的FCR。綜上所述，13％粗蛋白質及2,700kcal/kg代謝能含量飼糧，可滿足4到8週齡肉鵝生長所需。

並列關鍵字

鵝 ； 粗蛋白質 ； 代謝能