التفاصيل البيبلوغرافية
| العنوان: |
丁酸梭菌对商品肉鸡生长性能、屠宰性能、 免疫器官指数和经济效益的影响. (Chinese) |
| العنوان البديل: |
Effects of Clostridium butyricum on Growth Performance, Slaughter Performance, Immune Organ Index and Economic Benefits of Commercial Broilers. (English) |
| المؤلفون: |
李洪涛, 李爱军, 庄佳荣, 赵素梅, 赵 旭 |
| المصدر: |
Feed Industry; 2023, Vol. 44 Issue 15, p19-24, 6p |
| مصطلحات موضوعية: |
CLOSTRIDIUM butyricum, FEED utilization efficiency, ABDOMINAL adipose tissue, WEIGHT gain, SWINE breeding, BODY weight, ANIMAL industry |
| الملخص (بالإنجليزية): |
The purpose of this experiment was to study the substitution and application effects of Clostridium butyricum on commercial broilers. A total of 720 healthy 1-day-old Ross 308 commercial broilers were randomly divided into 3 treatments of 8 replicates with 30 broilers each. Pigs in the control group were fed a basal diet, the antibiotics group was fed the basal diet supplemented with 75 g/t broad-spectrum antibiotic (aureomycin), and the Clostridium butyricum group was fed the basal diet supplemented with 50 g/t clostridium butyricum. The experiment was divided into two stages, from 1 to 21 days of age and from 22 to 42 days of age. The results showed that: ① compared with the control group, the body weight on 21 and 42 day, the average daily weight gain (ADG) at each stage and the European benefit index (EPI) of broilers in the antibiotic and Clostridium butyricum groups were significantly increased (P<0.05). While the average daily feed intake on 22-42 days and the feed weight ratio (F/G) at each stage were significantly reduced (P< 0.05). ② The semi-clean bore rate on the 21st day, the slaughter rate, semi-clean bore rate and full clean bore rate on the 42nd day of commercial broilers in the antibiotic and Clostridium butyricum groups were significantly increased (P<0.05); while the abdominal fat rate at 21 days of age significantly decreased (P<0.05). At the same time, the abdominal fat rate of Clostridium butyricum group on the 21st day was significantly lower than that of the control group and the antibiotic group (P<0.05). ③ The spleen index, thymus index and bursa of Fabricius index on 42-day-old of broilers in antibiotic group and Clostridium butyricum group were significantly increased (P<0.05); The spleen index and thymus index of Clostridium butyricum group on 42-day-old broilers were significantly higher than those of antibiotic group (P<0.05). ④ Antibiotic group and Clostridium butyricum group can improve the feed conversion efficiency of commercial broilers, reduce feed consumption and feed cost, and increase the body weight, which can increase the economic benefits by 0.75 yuan/chicken and 0.64 yuan/chicken respectively. It can be seen that Clostridium butyricum can improve the production performance and slaughter performance of commercial broilers, improve immune organ index and other immune functions, obtain better breeding benefits, and reach the level of antibiotics to a certain extent, with good replacement effect. [ABSTRACT FROM AUTHOR] |
| Abstract (Chinese): |
试验旨在研究丁酸梭菌在商品肉鸡上的替抗和应用效果. 选用 1日龄罗斯 308商品肉 鸡720只, 随机分为3组, 对照组饲喂无抗基础日粮, 抗生素组在基础日粮中添加75 g/t的广谱抗生素 (金霉素), 丁酸梭菌组在基础日粮中添加丁酸梭菌 50 g/t. 试验分 1~21日龄和 22~42日龄两个阶段 进行. 结果表明: ①与对照组相比, 抗生素组和丁酸梭菌组肉鸡 21日龄和 42日龄的体重、各阶段的 平均日增重 (ADG) 和欧洲效益指数 (EPI) 显著提高 (P<0.05), 22~42日龄的平均日采食量 (ADFI) 和各 阶段的料重比 (F/G) 显著降低 (P<0.05). ②与对照组相比, 抗生素组和丁酸梭菌组肉鸡 21日龄的半 净膛率、42 日龄的屠宰率、半净膛率和全净膛率显著提高 (P<0.05), 21 日龄的腹脂率显著降低 (P< 0.05); 同时, 丁酸梭菌组 21日龄的腹脂率显著低于对照组和抗生素组 (P<0.05). ③与对照组相比, 抗生素组和丁酸梭菌组肉鸡 42 日龄的脾脏指数、胸腺指数和法氏囊指数显著提高 (P<0.05); 丁酸 梭菌组肉鸡42日龄的脾脏指数和胸腺指数显著高于抗生素组 (P<0.05). ④抗生素组和丁酸梭菌组 商品肉鸡的饲料转化效率均有提高, 饲料消耗和饲料成本降低, 出栏体重提高, 经济效益分别提高 0.75元/只和0.64元/只. 由此可见, 丁酸梭菌可提高商品肉鸡的生长性能和屠宰性能, 提高免疫器官 指数等免疫功能, 获得更好的养殖效益, 多数指标与添加抗生素组相当, 有良好的替抗效果. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
Complementary Index |
