The application effect of Bacillus subtilis on poultry

The application effect of Bacillus subtilis on poultry枯草芽孢杆菌在家禽中的应用效果

Many research results have shown that Bacillus subtilis can improve animal production performance.

许多研究结果表明，枯草芽孢杆菌可以提高动物生产性能。

Broilers: Adding Bacillus subtilis to the diet can improve the weight gain of broilers, significantly increasing the average daily weight gain of broilers aged 21, 30, and 40 days, as well as the average daily weight gain of broilers throughout their growth period (0-6 weeks old). At the same time, it can significantly improve the feed conversion efficiency and feed conversion rate of broiler chickens throughout their growth period (0-6 weeks old). Bacillus subtilis can significantly improve the utilization efficiency of calcium, phosphorus, and crude ash. The use of Bacillus subtilis preparation in the diet of broiler chickens with higher nutritional levels can effectively promote the growth of broiler chickens, improve feed conversion efficiency and economic benefits, have no adverse effects on the carcass quality and nutritional composition of broiler chickens, and improve the amino acid composition of chicken, increase the total amount of amino acids, essential amino acids, and fresh amino acid content, and increase the freshness of chicken. In addition to adding Bacillus subtilis to the diet, adding Bacillus subtilis to the drinking water of broiler chickens can also improve the quality of slaughter, increase daily weight gain, increase feed intake, and significantly reduce the feed to meat ratio. Adding 0.5kg/t Bacillus subtilis to poultry has the best effect.肉仔鸡:饲粮中添加枯草芽孢杆菌可提高肉仔鸡的增重，显著提高21、30、40日龄肉仔鸡的平均日增重，显著提高整个生长期(0 ~ 6周龄)肉仔鸡的平均日增重。同时，能显著提高肉鸡整个生长期(0 ~ 6周龄)的饲料转化效率和饲料转化率。枯草芽孢杆菌能显著提高钙、磷和粗灰分的利用效率。在营养水平较高的肉仔鸡饲粮中使用枯草芽孢杆菌制剂，可有效促进肉仔鸡生长，提高饲料转化效率和经济效益，对肉仔鸡胴体品质和营养成分无不良影响，并可改善鸡的氨基酸组成，提高鸡的氨基酸总量、必需氨基酸和新鲜氨基酸含量，提高鸡的新鲜度。除在饲粮中添加枯草芽孢杆菌外，在肉鸡饮用水中添加枯草芽孢杆菌也能改善屠宰品质，提高日增重，增加采食量，显著降低料肉比。在家禽中添加0.5kg/t枯草芽孢杆菌效果最好。

Egg laying hens: Bacillus subtilis preparation has the ability to improve feed to egg ratio, reduce mortality rate, significantly reduce egg breakage rate, and have a trend of increasing individual egg weight and eggshell thickness. Additionally, Bacillus subtilis preparation can significantly improve the digestibility of crude protein and organic matter in the diet.蛋鸡:枯草芽孢杆菌制剂能提高料蛋比，降低死亡率，显著降低破蛋率，并有增加个体蛋重和蛋壳厚度的趋势。此外，枯草芽孢杆菌制剂可显著提高日粮中粗蛋白质和有机物的消化率。

Meat Goose: Adding 250g/t of Bacillus subtilis to meat goose feed can improve dry matter and energy retention, and its growth promoting effect on meat geese is equivalent to 5mg/kg of aflatoxin.肉鹅:在肉鹅饲料中添加250g/t枯草芽孢杆菌可提高肉鹅的干物质和能量保留，其对肉鹅生长的促进作用相当于5mg/kg黄曲霉毒素。

Meat duck: Bacillus subtilis can reduce the feed to meat ratio of meat ducks by 0.06-0.07, with a reduction range of 2.4% to 2.7%; In terms of the impact on the cost of medicine, there are significant changes in the dosage and experimental conditions. The cost of medicine is reduced by 0.08-0.30 yuan per feather, with a reduction range of 11.4% to 40.0%. Meanwhile, Bacillus subtilis has a tendency to improve the growth rate, reduce feed consumption, and increase survival rate of meat ducks. The addition of 100g/t and 300g/t Bacillus subtilis preparations increased weight gain by 6.24% and 6.63% respectively compared to the addition of aflatoxin group, and the feed to meat ratio improved by 3.87% and 4.50%, respectively.肉鸭:枯草芽孢杆菌可使肉鸭料肉比降低0.06 ~ 0.07，降低幅度为2.4% ~ 2.7%;在对药物成本的影响方面，在剂量和实验条件方面都有明显的变化。药品成本每羽降低0.08-0.30元，降幅幅度为11.4% - 40.0%。同时，枯草芽孢杆菌有提高肉鸭生长速度、降低饲料消耗、提高成活率的趋势。与添加黄曲霉毒素组相比，添加100g/t和300g/t枯草芽孢杆菌制剂可分别提高增重6.24%和6.63%，料肉比分别提高3.87%和4.50%。