Fan Yang-Chi, Wu Yi-Tei, Wu Yi-Hsieng Samuel, Wang Chia-Lan, Chou Chung-Hsi, Chen Yi-Chen, Tsai Hsiang-Jung
Zoonoses Research Center and School of Veterinary Medicine, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei City 106, Taiwan.
Department of Animal Science and Technology, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei City 106, Taiwan.
Vet Sci. 2023 Jul 15;10(7):466. doi: 10.3390/vetsci10070466.
In 2006, the European Commission banned the use of antibiotic promoters in animal feed. However, there is a new situation in poultry disease where it is necessary to study feed additives, which can overcome the diseases that were previously controlled through the addition of antibiotics and antimicrobial growth promoters in the feed. Therefore, trehalose was investigated to determine whether it impacts the growth performance and pathogenic bacteria ( and ) inoculation in broilers. In the first experiment, the tolerance of broilers to the addition of trehalose to their feed was investigated. There was no significant difference ( > 0.05) in body weight changes, daily weight gain, feed intake or feed conversion ratio during the feeding period. Within a 35-day feeding period, it was concluded that a trehalose dosage up to 10% does not exert a negative effect on broiler farming. Moreover, there was no significant difference ( > 0.05) in the broilers' growth performance, as well as and counts in the intestines and feces of broilers observed over a 5-week feeding period. However, counts significantly increased in these groups with 3% and 5% trehalose supplementation. The findings indicate that trehalose supplementation in the feed cannot directly decrease and counts but may enhance gut health by raising counts in chicken gut, particularly when enteropathogenic bacteria are present.
2006年，欧盟委员会禁止在动物饲料中使用抗生素促生长剂。然而，家禽疾病出现了新情况，有必要研究饲料添加剂，以克服以前通过在饲料中添加抗生素和抗菌生长促进剂来控制的疾病。因此，对海藻糖进行了研究，以确定其是否会影响肉鸡的生长性能和病原菌接种情况。在第一个实验中，研究了肉鸡对饲料中添加海藻糖的耐受性。在饲养期内，体重变化、日增重、采食量或饲料转化率均无显著差异（P>0.05）。在35天的饲养期内，得出结论：海藻糖剂量高达10%对肉鸡养殖没有负面影响。此外，在5周的饲养期内，观察到的肉鸡生长性能以及肠道和粪便中的大肠杆菌和沙门氏菌数量均无显著差异（P>0.05）。然而，添加3%和5%海藻糖的组中，大肠杆菌数量显著增加。研究结果表明，饲料中添加海藻糖不能直接降低大肠杆菌和沙门氏菌数量，但可能通过提高鸡肠道中的乳酸菌数量来增强肠道健康，尤其是在存在肠道病原菌的情况下。
