Hsu L W, Sell J L
Department of Animal Science, Iowa State University, Ames 50011, USA.
Poult Sci. 1995 Oct;74(10):1703-7. doi: 10.3382/ps.0741703.
An experiment was conducted to determine the relationship between test weight of corn and growth, efficiency of feed utilization, nutrient retention, and carcass composition of young turkeys. The MEn values of corn were also measured. Two samples of corn differing substantially in test weight were fed to male turkey poults (Nicholas Large White) from 1 to 20 d of age. The test weights of the light-weight corn and the normal-weight corn were 55 kg/hL (43 lb/bu) and 70 kg/hL (54 lb/bu), respectively. The light-weight corn was lower in crude protein concentration (6.63%) than the normal-weight corn (8.53%). The determined MEn of the corn samples did not differ (3.22 vs 3.25 kcal/g). The light-weight corn diet had modest adverse effects on growth and feed efficiency of poults during the 1 to 7 d after hatching. Poult carcass composition and retention of nitrogen and energy were not affected by the test weight of corn.
进行了一项实验，以确定玉米容重与幼火鸡生长、饲料利用效率、养分保留及胴体组成之间的关系。还测定了玉米的代谢能值。将容重差异很大的两个玉米样品喂给1至20日龄的雄性火鸡雏（尼古拉斯大白火鸡）。轻质玉米和正常重量玉米的容重分别为55千克/百升（43磅/蒲式耳）和70千克/百升（54磅/蒲式耳）。轻质玉米的粗蛋白浓度（6.63%）低于正常重量玉米（8.53%）。所测定的玉米样品的代谢能没有差异（3.22对3.25千卡/克）。轻质玉米日粮在雏鸡孵化后1至7天对其生长和饲料效率有适度的不利影响。玉米容重对雏鸡胴体组成以及氮和能量的保留没有影响。
