Centre Vétérinaire de Recherche, Sfax, Tunisia.
Lipids Health Dis. 2012 Mar 6;11:35. doi: 10.1186/1476-511X-11-35.
Increasing consumer demand for healthier food products has led to the development of governmental policies regarding health claims in many developed countries. In this context, contamination of poultry by food-borne pathogens is considered one of the major problems facing the progress of the poultry industry in Tunisia.
Zeolite (Clinoptilolites) was added to chicken feed at concentrations 0,5% or 1% and was evaluated for its effectiveness to reduce total flora in chickens and its effects on performance of the production. The broilers were given free and continuous access to a nutritionally non-limiting diet (in meal form)that was either a basal diet or a' zeolite diet' (the basal diet supplemented with clinoptilolite at a level of 0,5% or 1%). It was found that adding zeolite in the broiler diet significantly (p < 0,05) reduced total flora levels, as compared to the control, on the chicken body. In addition, it was found that zeolite treatment had a positive effect on performance production and organoleptic parameters that were measured and mainly on the increase level of Omega 3 fatty acid.
This study showed the significance of using zeolite, as a feed additive for broilers, as part of a comprehensive program to control total flora at the broiler farm and to increase level of Omega 3 fatty acid on the chicken body.
消费者对更健康食品的需求不断增加，促使许多发达国家制定了与健康声称相关的政策。在这种背景下，食源性致病菌污染家禽被认为是突尼斯家禽业发展面临的主要问题之一。
在鸡饲料中添加沸石（斜发沸石），浓度分别为 0.5%或 1%，并评估其对减少鸡体内总菌群的有效性及其对生产性能的影响。肉鸡可以自由且持续地获得营养非限制饮食（以颗粒形式），该饮食要么是基础饮食，要么是“沸石饮食”（基础饮食中添加 0.5%或 1%的斜发沸石）。结果发现，与对照组相比，在鸡体上，在肉鸡日粮中添加沸石可显著（p<0.05）降低总菌群水平。此外，还发现沸石处理对生产性能和感官参数有积极影响，这些参数都得到了测量，主要表现在增加了鸡体中的 ω-3 脂肪酸水平。
本研究表明，在肉鸡养殖中，沸石作为一种饲料添加剂，在控制鸡场总菌群和提高鸡体 ω-3 脂肪酸水平方面具有重要意义。
