Consumer demands for chickens raised without the use of antibiotics, legislative restrictions, and trade opportunities have encouraged many integrators within the poultry industry to raise poultry without antibiotic growth promoters (AGPs) and ionophores. However, with the removal of AGPs and ionophores, the incidence of enteric diseases such as coccidiosis and necrotic enteritis (NE), caused by Eimeria spp. and Clostridium perfringens, respectively, have increased, thereby gaining the attention of the poultry industry to look for alternative strategies to improve bird's health. Coccidiosis and NE are 2 major enteric disease concerns in broilers because of their association with decreased performance, increased mortality, reduced welfare, and a higher risk of poultry product contamination. Necrotic enteritis is often induced after a coccidiosis infection and any factor that causes stress, reduces immunity, and disturbs intestinal ecosystem. Nutritional mitigation strategies have been widely used to reduce such enteric diseases with a greater focus on balanced gut health. Some of the nutritional interventions that have shown potential for improving gut health while reducing overall disease include the use of probiotics, prebiotics, organic acids, essential oils, vaccination, and natural phytochemical extracts in poultry diets. A better understanding of the relationship between nutritional strategies, coccidiosis, and NE is crucial to improve gut health in the absence of AGPs in poultry production. This review will provide information and updates pertaining to current research focusing on several nutritional strategies that have helped to alleviate coccidiosis and NE, by modulating performance and gut health aspects.

消费者对不使用抗生素而饲养的鸡的需求，立法限制和贸易机会，促使家禽业中的许多整合者饲养没有抗生素生长促进剂（AGP）和离子载体的家禽。然而，随着AGP和离子载体的去除，由艾美球虫引起的肠球虫病和坏死性肠炎（NE）等肠道疾病的发生率很高。和产气荚膜梭菌分别增加，从而引起了家禽业的关注，以寻找改善鸟类健康的替代策略。球虫病和NE是肉鸡的两个主要肠道疾病问题，因为它们与性能下降，死亡率增加，福利降低和家禽产品污染的较高风险相关。球虫感染和任何引起压力，降低免疫力并扰乱肠道生态系统的因素后，通常会诱发坏死性肠炎。营养缓解策略已被广泛用于减少此类肠道疾病，更着重于平衡肠道健康。在改善肠道健康的同时减少总体疾病的潜力方面，一些营养干预措施包括使用益生菌，益生元，有机酸，精油，疫苗接种，和天然的家禽饮食中的植物化学提取物。在家禽生产中没有AGP的情况下，更好地了解营养策略，球虫病和NE之间的关系对于改善肠道健康至关重要。这篇综述将提供与当前研究相关的信息和更新，其重点是通过调节生产性能和肠道健康状况来帮助缓解球虫病和NE的几种营养策略。