Ferreira Maiara Dos Santos, da Silva Welligton Conceição, Cunha Ancelmo Rodrigues, Costa Ercvania Rodrigues, Cabral Ícaro Dos Santos, Dias Salatiel Ribeiro, de Lima Ronaldo Francisco
Institute of Social Sciences, Education and Zootechnics, Federal University of Amazonas, Parintins, Amazonas, Brazil.
Postgraduate Program in Animal Science (PPGCAN), Institute of Veterinary Medicine, Federal University of Para (UFPA), Federal Rural University of the Amazônia (UFRA), Brazilian Agricultural Research Corporation (EMBRAPA), Castanhal, Brazil.
Front Vet Sci. 2024 Jul 16;11:1397608. doi: 10.3389/fvets.2024.1397608. eCollection 2024.
Live yeasts have favorable characteristics for use in animal feed, and may become a beneficial tool to improve digestive efficiency in buffaloes (). The productive performance, feed efficiency, and digestion ability of buffaloes fed diets supplemented with yeast ( strain KA500) were evaluated. Eighteen male Murrah buffaloes, with initial weight 250 ± 31 kg (mean ± standard deviation), and aged approximately 12 months, were randomly assigned to one of two treatments. The treatments included experimental feed containing 10 g of the live yeast capable of forming 2 × 10 colony forming units (CFU) and control (feed with no added yeast). The daily weight gain tended to be lower ( = 0.07) in buffaloes supplemented with yeast. There was a reduction in daily dry matter intake (DMI) and in % yield of live weight in buffaloes supplemented with yeast. There was no effect of live yeast supplementation on weight gain/kg dry matter intake, height at withers or rump, body condition score, total weight gain, carcass yield, plasma urea nitrogen concentrations, purine derivatives, and plasma glucose concentrations. The digestibility of dry matter (DM) and organic matter (OM) were lower ( < 0.05) with the supplementation of live yeast, although live yeast supplementation did not affect the digestibility of neutral detergent fiber (NDF) and non-NDF OM. The strain and dosage of live yeast used did not have a positive effect on buffalo performance and digestibility of dietary nutrients.
活酵母具有用于动物饲料的良好特性，并且可能成为提高水牛消化效率的有益工具（）。对饲喂添加酵母（KA500菌株）日粮的水牛的生产性能、饲料效率和消化能力进行了评估。18头雄性穆拉水牛，初始体重250±31千克（平均值±标准差），年龄约12个月，被随机分配到两种处理之一。处理包括含有10克能够形成2×10菌落形成单位（CFU）的活酵母的实验饲料和对照（不添加酵母的饲料）。补充酵母的水牛日增重倾向于较低（P = 0.07）。补充酵母的水牛日干物质摄入量（DMI）和活体增重百分比有所降低。补充活酵母对每千克干物质摄入量的体重增加、肩高或臀高、体况评分、总增重、胴体产量、血浆尿素氮浓度、嘌呤衍生物和血浆葡萄糖浓度没有影响。补充活酵母时，干物质（DM）和有机物（OM）的消化率较低（P < 0.05），尽管补充活酵母不影响中性洗涤纤维（NDF）和非NDF有机物的消化率。所用活酵母的菌株和剂量对水牛性能和日粮养分消化率没有积极影响。
