Emborg H, Ersbøll A K, Heuer O E, Wegener H C
Danish Veterinary Laboratory, Bülowsvej 27, DK-1790, Copenhagen V, Denmark.
Prev Vet Med. 2001 Jul 19;50(1-2):53-70. doi: 10.1016/s0167-5877(01)00218-5.
On 15 February 1998, the Danish poultry industry voluntarily decided to discontinue the use of all antimicrobial growth promoters (AGPs). To investigate how the removal of AGPs influenced the broiler productivity in Denmark, data from 6815 flocks collected from November 1995 to July 1999 by the Danish Poultry Council were analysed. The three flock parameters were: kilogram broilers produced per square meter (per rotation), feed-conversion ratio (total kilogram feed used per rotation/total kilogram live weight per rotation) and total percent dead broilers ((number of dead broilers during the rotation/number of broilers put in the house per rotation)x100). Data were analysed using a mixed model, allowing the correlation structures in the data to be taken into account. The analyses showed that kilogram broilers produced per square meter and percent dead broilers in total were not affected by the discontinued use of AGPs. However, the feed-conversion ratio increased marginally 0.016 kg/kg and has remained at this level throughout the rest of the study period.
1998年2月15日，丹麦家禽业自愿决定停止使用所有抗菌生长促进剂（AGPs）。为了研究去除AGPs对丹麦肉鸡生产性能的影响，分析了丹麦家禽协会在1995年11月至1999年7月期间收集的6815个鸡群的数据。三个鸡群参数分别为：每平方米（每轮次）生产的肉鸡千克数、饲料转化率（每轮次使用的饲料总千克数/每轮次活体重总千克数）和肉鸡总死亡率（（轮次期间死亡肉鸡数量/每轮次放入鸡舍的肉鸡数量）×100）。使用混合模型对数据进行分析，以便考虑数据中的相关结构。分析表明，每平方米生产的肉鸡千克数和肉鸡总死亡率不受停止使用AGPs的影响。然而，饲料转化率略有增加，增加了0.016千克/千克，并且在研究期的其余时间一直保持在这个水平。
