Luo Yankai, Bi Yuchen, Xu Ziyun, Shan Linxian, He Jun, Wang Kedan, Zhou Zhengjiang, Yu Lihui, Jiang Xingjiao, Yang Jiangrui, Yu Lijun, Gao Rui, Wei Jingran, Du Xiaocui, Liu Yan, Fang Chongye
College of Agronomy and Biotechnology, Yunnan Agricultural University, Kunming, China.
Yunnan Research Center for Advanced Tea Processing, Yunnan Agricultural University, Kunming, China.
Front Vet Sci. 2024 Jan 11;10:1335208. doi: 10.3389/fvets.2023.1335208. eCollection 2023.
White-feather broiler chickens are the dominant species in global poultry meat production. Yet there is growing concern about their health, quality, and growth efficiency. While feed additives, often antibiotics or synthetic chemicals, are used to maintain the health of the animals, drug resistance limits their use. (Lour.) Pers., a traditional Chinese herb with antibiotic-like benefits but without the risk of drug resistance, has not yet been explored as an additive to broiler diets. In the present study, broilers of the AA+ hybrid strain were randomly divided into three groups of 16: a control group (regular feed), a low-dose group (1.25 g/kg added extract), and a high-dose group (2.50 g/kg added extract). After 35 days, we found that the extract had no effect on growth. However, gut flora analysis revealed that both doses of the extract had a positive influence on amino acid content and minor unsaturated fatty acids, thus improving the flavor and nutritional value of the meat. These findings suggest that extract, at either dose, could serve as a sustainable alternative to antibiotics, thus reducing the risk of drug resistance while improving meat quality, nutrition, and flavor.
白羽肉鸡是全球禽肉生产中的主要品种。然而,人们对它们的健康、品质和生长效率的担忧日益增加。虽然通常使用饲料添加剂(通常是抗生素或合成化学品)来维持动物的健康,但耐药性限制了它们的使用。(Lour.)Pers.是一种具有类似抗生素益处但无耐药风险的传统中草药,尚未被探索作为肉鸡日粮的添加剂。在本研究中,AA + 杂交品系的肉鸡被随机分为三组,每组16只:对照组(常规饲料)、低剂量组(添加1.25 g/kg提取物)和高剂量组(添加2.50 g/kg提取物)。35天后,我们发现该提取物对生长没有影响。然而,肠道菌群分析表明,两种剂量的提取物对氨基酸含量和少量不饱和脂肪酸都有积极影响,从而改善了肉的风味和营养价值。这些发现表明,无论哪种剂量的提取物都可以作为抗生素的可持续替代品,从而在提高肉质、营养和风味的同时降低耐药风险。