This experiment was conducted to study the availability of different unconventional feedstuffs for geese. A total of 30 Taihu ganders were selected and divided into 5 groups with 6 replicates per group and 1 goose in each replicate, and one group was allocated as control. Taihu ganders in 4 treated groups were force-fed with uniform weight of different uncommon feedstuffs after 24 h fasting, and the control group was kept in fasting with no force feeding. All excretion of each group was collected in 24 h after force feeding with plates. There was a 12-day recovery period between treatments. In this study, we total analyzed the metabolizable energy (ME), neutral detergent fiber (NDF), acid detergent fiber (ADF) and hemi cellulose (HC) of eleven kinds of uncommon feedstuffs which including brewer' s grains, distillers grains, empty-grain rice, ryegrass powder, rice husk, corn stalk, rice straw, wheat straw, wheat husk, mushroom bran and peanut vine for geese. The results showed that true metabolizable energy (TME) values of 11 kinds of feedstuffs were 9.29, 8.67, 8.97, 5.89, 3.85, 3.10, 3.32, 3.02, 5.29, 2.48 and 3. 15 MJ/kg, respectively. Availability of NDF for different uncommon feedstuffs ranged from 6. 14% to 45.01%, availability of ADF ranged from 4. 52% to 32. 57% , availability of HC ranged from 18.45% to 61. 59%. The optimum prediction equation: TME = 12.205 -0.232 CF (R2 = 0.817). These results indicated that geese are preferred to uncommon feedstuffs with high availability, and there is a significantly negative correlation between energy availability and the crude fiber (CF). ME values tested in this experiment can provide foundation for preparation and adjustment of feed formula for reasonable utilization of uncommon feedstuffs for geese.%本研究旨在探索鹅对不同非常规饲料的利用率.试验以30只成年太湖鹅公鹅为研究对象,随机分为5组,每组6个重复,每个重复1只鹅,其中1组为内源排泄物对照组.空腹24 h后,每组强饲1种饲料,各组内每只鹅强饲量相同,内源排泄物对照组不强饲.采用平板收粪法收集24 h排泄物.2次试验间恢复期12 d.测定生产中常见的11种非常规饲料代谢能(ME)和中性洗涤纤维(NDF)、酸性洗涤纤维(ADF)、半纤维素(HC)利用率.结果表明:鹅对啤酒糟、白酒糟、瘪稻、黑麦草粉、稻壳、玉米秸、稻草、麦秸、麦糠、平菇菌糠、花生藤的真代谢能(TME)分别为9.29、8.67、8.97、5.89、3.85、3.10、3.32、3.02、5.29、2.48、3.15 MJ/kg.用TME法测得的11种非常规饲料的NDF利用率为6.14％ ～45.01％,ADF利用率为4.52％～32.57％,HC利用率为18.45％～61.59％.TME最佳一元预测方程为TME=12.205 -0.232CF (R2 =0.817).研究结果显示鹅对非常规饲料有较高的利用率,能量利用率和粗纤维(CF)的含量呈极显著的负相关.试验所测ME值可为非常规饲料合理利用,准确计算与调整鹅饲料配方提供参考依据.
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