Owings W J, Sell J L, Ferket P, Hasiak R J
Department of Animal Science, Iowa State University, Ames 50011.
Poult Sci. 1988 Apr;67(4):585-9. doi: 10.3382/ps.0670585.
Female poults were fed diets containing 0, 10, or 20% corn gluten feed (CGF) from 0 to 16 wk of age or no CGF from 0 to 9 wk and 20% CGF from 9 to 16 wk of age. All diets were formulated to be isonitrogenous and isocaloric, within each age interval. Diets containing CGF had no significant effect on body weight gain, feed efficiency, yield of carcass parts, or carcass composition, as compared with effects of feeding a corn-soybean meal control diet. However, age of slaughter, 14 vs. 16 wk, had a significant effect on the proportion of breast meat, breast bone, thigh skin, thigh bone, and drums. Carcasses were significantly higher in protein and lower in fat at 14 wk than at 16 wk of age. Results suggest CGF can successfully constitute up to 10% of the diet of growing turkey hens. The use of CGF in turkey diets up to this level would be governed by the economics of the nutrient supply. At 20% of the diet, the tendency for CGF to induce moist droppings may impose a restriction on its use, and the degree of restriction would depend on the housing-management situation.
雌性小火鸡在0至16周龄期间分别饲喂含0%、10%或20%玉米蛋白粉（CGF）的日粮，或者在0至9周龄不饲喂CGF而在9至16周龄饲喂20% CGF的日粮。在每个年龄区间内，所有日粮均配制为等氮和等热量的。与饲喂玉米-豆粕对照日粮的效果相比，含CGF的日粮对体重增加、饲料效率、胴体各部位产量或胴体组成均无显著影响。然而，屠宰年龄（14周龄与16周龄）对胸肉、胸骨、大腿皮肤、大腿骨和小腿的比例有显著影响。14周龄时的胴体蛋白质含量显著高于16周龄，脂肪含量则显著低于16周龄。结果表明，CGF可成功占生长中的母火鸡日粮的10%。在此水平以下，CGF在火鸡日粮中的使用将受营养供应经济性的制约。当日粮中CGF含量为20%时，其导致粪便潮湿的倾向可能会限制其使用，限制程度将取决于饲养管理情况。
