飼糧添加枯草芽孢桿菌TLRI 211-1對白肉雞生長性能、屠體性狀及血液生化值之影響

枯草芽孢桿菌為我國飼料管理法中可供給畜禽之飼料添加物，其具生長快速、耐酸、耐鹼、耐熱及可形成內孢子等特性。本研究以篩選自活性污泥之枯草芽孢桿菌TLRI 211-1（Bacillus subtilis TLRI 211-1）添加於飼糧中，探討對白肉雞生長、屠體性狀及血液生化值之影響。將篩選自活性污泥之枯草芽孢桿菌TLRI 211-1培養後，調整菌數為1 × 10^8 CFU/mL。以1日齡ROSS 308白肉雞192隻，分配於對照組（0%）、添加枯草芽孢桿菌TLRI 211-1菌液0.1、0.3%或商用枯草芽孢桿菌組0.1%，各組4重複（欄），每欄12隻。試驗為期5週。結果顯示，飼糧添加枯草芽孢桿菌TLRI 211-1 0.1%組之雞隻增重、生產效率及屠體重顯著高於對照組及商用菌組（P ＜ 0.05）。飼糧添加枯草芽孢桿菌處理組與對照組比較，雞隻腹脂明顯較低，但腸道重顯著較高（P ＜ 0.05）。各組間在血液生化炎症指標酵素－麩胺酸草醋酸轉胺酶、丙酮酸轉胺酶、肌酸磷酸酶及γ-麩胺醯轉胺酶等均無顯著差異。綜上所述，飼糧添加枯草芽孢桿菌TLRI 211-1菌數達1 × 10^8 CFU/kg，可提高白肉雞增重及生產效率，因此可作為促進雞隻生長性能之益生菌飼料添加物。

關鍵字

白肉雞；枯草芽孢桿菌；生長性能

並列摘要

Bacillus subtilis is a feed additive that can be supplied to livestock and poultry according to the Taiwan Feed Control Act law. B. subtilis features characteristics of rapid growth, acid resistance, alkali resistance, heat resistance, and endospore formation. In this study, B. subtilis TLRI 211-1, isolated from activated sludge, was added to the diet to explore the effects on the growth performance, carcass, and blood characteristics of broilers. After culture, the number of B. subtilis TLRI 211-1 was adjusted to 1 × 10^8 CFU/mL. A total of 192 day-old broilers were allocated to four groups, including: control group (0%), B. subtilis TLRI 211-1 solution 0.1%, 0.3% supplementation groups, and commercial B. subtilis 0.1% supplementation group. Each group had 4 replicates (pens) and each replicate had 12 birds. The experiment was conducted for 5 weeks.During the experimental period, growth performance, carcass and blood characteristics were measured. The results showed that the weight gain, production efficiency and slaughter weight of the feed supplemented with TLRI 211-1 bacterial solution 0.1% were significantly higher than those of the control group and the commercial bacteria group (P ＜ 0.05). The abdominal fat of birds fed with B. subtilis was significantly lower, but the intestinal weight was significantly higher than those of the control group (P ＜ 0.05). There was no significant difference in the blood biochemical inflammation index enzymes - GOT, GPT, CK, and γ-GT among all groups. In summary, dietary supplementation of 1 × 10^8 CFU/kg B. subtilis TLRI 211-1 can increase the weight gain and production efficiency of white broilers. Thus, B. subtilis TLRI 211-1 strain can be used as a probiotic feed additive to promote chicken growth performance.

並列關鍵字

Broiler ； Bacillus subtilis ； Growth traits

國際替代計量

飼糧添加枯草芽孢桿菌TLRI 211-1對白肉雞生長性能、屠體性狀及血液生化值之影響

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