Jeroch H, Schubert R, Prinz M, Petzold M, Hennig A
Arch Tierernahr. 1977 Nov;27(11):681-7. doi: 10.1080/17450397709434276.
Groups of male and female Cairina ducks subjected to equal starter feeding (1st to 3rd weeks) were used from the 4th week of live (fattening period) to test feed mixes of varying energy and crude protein levels (480 energetic feed equivalents/heu[EFH] - 140 g crude protein[CP]; 480 EFh - 180/g CP; 555 EFh - 140 g CP; 555 EFh - 180 g CP; 625 EEh - 140 g CP; 625 EFh - 180 g CP - all figures referred to 1 kg of feed). The different energy levels remained without influence of the live weight development. High-energy feed caused, however, higher expenditures of energetic feed equivalents per kg of gain and resulted in carcases with higher fat proportion. At all the 3 energy levels under study, high-protein feeding proved superior to low-protein rations with regard to live weight gains and meat yield. For the time being, 500 EFh and 180 g CP per kg of organic matter are recommended as indicators for Cairina duck fattening rations.
从第4周龄（育肥期）开始，使用等量开食料喂养（第1至3周）的雌雄番鸭组，以测试不同能量和粗蛋白水平的饲料组合（480能量饲料当量/千克 - 140克粗蛋白；480能量饲料当量/千克 - 180克粗蛋白；555能量饲料当量/千克 - 140克粗蛋白；555能量饲料当量/千克 - 180克粗蛋白；625能量饲料当量/千克 - 140克粗蛋白；625能量饲料当量/千克 - 180克粗蛋白 - 所有数据均指1千克饲料）。不同能量水平对体重增长没有影响。然而，高能饲料导致每千克增重的能量饲料当量消耗更高，并使屠体脂肪比例更高。在所有研究的3个能量水平下，高蛋白喂养在体重增加和肉产量方面优于低蛋白日粮。目前，建议每千克有机物500能量饲料当量和180克粗蛋白作为番鸭育肥日粮的指标。
