Gruhn K, Hennig A, Jamroz D, Zieger M
Arch Exp Veterinarmed. 1975;29(2):199-205.
Balance experiments were performed on six normal young geese and on six geese with a ligated caecum. The ration consisted of 43.25% barley, 30% sugar beet slices, 20% cellulose, 1.4% maize germ oil, 3% mineral mixture, 1% concentrate of vitamins and growth factors, 1.25% urea and 0.1% lysine. Daily nitrogen balance was similar in the two groups (average 1051 mg in the controls and 1090 mg in the experimental birds). Crude protein digestibility was 82.4 +/- 1.1% in the controls and 84.9 +/- 1% in the experimental birds (a significant difference). The bacterial flora of the caecum seemed to have no effect on crude fibre breakdown. Digestibility was quite low, averaging 5.7% in controls and 4.6% in experimental birds. The proportion of urea discharged in excreta was 50% in controls and 55.7% in experimental birds. Blood urea veraged 21.7 mg/100 g in controls and 22.8 mg in experimental birds (insignificant difference).
对6只正常幼鹅和6只盲肠结扎的鹅进行了平衡实验。日粮由43.25%的大麦、30%的甜菜片、20%的纤维素、1.4%的玉米油、3%的矿物质混合物、1%的维生素和生长因子浓缩物、1.25%的尿素和0.1%的赖氨酸组成。两组的每日氮平衡相似（对照组平均为1051毫克，实验鹅为1090毫克）。对照组的粗蛋白消化率为82.4±1.1%，实验鹅为84.9±1%（差异显著）。盲肠的细菌菌群似乎对粗纤维分解没有影响。消化率相当低，对照组平均为5.7%，实验鹅为4.6%。对照组粪便中排出的尿素比例为50%，实验鹅为55.7%。对照组血尿素平均为21.7毫克/100克，实验鹅为22.8毫克（差异不显著）。
