Perelman B, Pirak M, Smith B
Regional Poultry Diseases Laboratory, Experimental Station Gilat, D.N. Negev, Israel.
Vet Rec. 1993 Mar 13;132(11):271-3. doi: 10.1136/vr.132.11.271.
Lasalocid sodium was accidentally introduced into the feed of several broiler breeder chicken farms at levels between 115 and 150 ppm. On one farm, leg weakness and ataxia were observed in a few cockerels. A reduction in egg production and a sharp decrease in fertility and hatchability were observed in all the flocks receiving the contaminated feed. Many piping chicks were unable to hatch and there was an increase in the number of weak ataxic chicks at the hatchery. Histological examination of the muscle tissues of the affected cockerels, the piping chicks unable to hatch and the one-day-old chicks with leg weakness and ataxia revealed severe muscle damage. Increasing levels of lasalocid were detected in the yolk of eggs collected from the affected flocks.
拉沙洛西钠意外地以115至150 ppm的浓度被添加到几个肉种鸡场的饲料中。在一个农场，几只小公鸡出现了腿部无力和共济失调的症状。在所有食用了受污染饲料的鸡群中，产蛋量下降，受精率和孵化率急剧降低。许多啄壳的雏鸡无法孵化，孵化场中腿部无力和共济失调的弱雏数量增加。对受影响的小公鸡、无法孵化的啄壳雏鸡以及腿部无力和共济失调的一日龄雏鸡的肌肉组织进行组织学检查，发现了严重的肌肉损伤。在从受影响鸡群收集的鸡蛋蛋黄中检测到拉沙洛西的含量不断增加。
