飼糧中添加凝結芽孢桿菌對離乳仔豬生長性能、血液生化值及糞便微生物的影響

Effects of adding Bacillus coagulans in diet on the growth performance, blood biochemical values and fecal microbials of weaned pigs

王錦盟(Chin-Meng Wang) ； 林幼君(You-Jun Lin) ； 陳致吟(Chih-Yin Chen) ； 劉芳爵(Fang-Chueh Liu)

《畜產研究》 53卷2期 (2020/06) Pp. 91-98

https://doi.org/10.6991/JTLR.202006_53(2).0004

摘要

本試驗旨在探討飼糧中添加凝結芽孢桿菌（Bacillus coagulans）對離乳仔豬生長性能、血液生化值及糞便微生物的影響。試驗以32頭4週齡（藍瑞斯×杜洛克）離乳仔豬為試驗動物，以體重為區集，再逢機分為2組，分別為對照組與處理組，處理組飼糧中額外添加凝結芽孢桿菌，使飼糧中濃度達10^8 CFU/kg。試驗期間測定飼料採食量、體重、血液血球相與生化值及糞便菌相。結果顯示，經4週飼料與水任食飼養，兩組之仔豬隻日飼料採食量分別為0.866及0.863kg，隻日增重則分別為0.249及0.262kg，在飼料採食量與增重方面均無顯著差異。飼糧中添加凝結芽孢桿菌組可以改善飼料利用效率（體增重／飼料採食量）6.2%，分別為0.286及0.305，在統計上具顯著之趨勢（P=0.10），在八週齡時達顯著水準（0.283及0.325；P＜0.05）。兩組之嗜中性白血球與淋巴球的比值相近，顯示飼糧添加凝結芽孢桿菌對降低離乳仔豬的緊迫無顯著影響，或是仔豬處於低緊迫的情況。兩組之糞便中病原性大腸桿菌、非病原性大腸桿菌群、革蘭氏陰性菌及乳酸菌之菌數量均亦相近。綜上所述，飼糧中添加凝結芽孢桿菌未能有明顯改善離乳仔豬之飼料採食量與日增重之效果，惟可以改善飼料利用效率，在仔豬八週齡時最明顯。

關鍵字

離乳仔豬 ； 凝結芽孢桿菌 ； 生長表現

並列摘要

The purpose of this study aims to evaluate the effect of dietary supplementation of Bacillus coagulans on growth performance, blood biochemical values and fecal microbial of weaned pigs. Thirty-two weaned pigs (Landrace × Duroc) at 4-wks of age were used and grouped in two by weight as the control and treatment groups. Bacillus coagulans was added in the diet for the treatment group with the concentration of 10^8 CFU/kg. Feed intake, body weight gain, blood cells, biochemical values, and fecal microbial were measured during the study period. The results showed that feed intake of piglets in the two groups was 0.866 and 0.863 kg/piglet/day, respectively, and the body weight gain was 0.249 and 0.262 kg/ piglet/day, respectively, which did not show significant difference in feed intake and weight gain Bacillus coagulans added to feed improved the feed efficiency (body weight gain/feed intake), up 6.2% and resulting in 0.286 and 0.305 in the groups, respectively. The statistical significance (P = 0.10) reached significance level by the 8 weeks of age (0.283 and 0.325; P ＜ 0.05). The ratios of neutrophil to lymphocytes between the two groups were close, with no indication of significant influence of adding Bacillus coagulans to the feed in order to reduce stress on weaned pigs, or placing weaned pigs under more stressed conditions. The bacterial counts of Escherichia coli, Coliforms, Gram-negative bacteria, and Lactobacillus colonies in the feces of the two groups were also close. In conclusion, the addition of Bacillus coagulans in diet could not significantly improve the feed intake and daily weight gain in weaned pigs, which however can improve the feed efficiency, especially when piglets are 8-week old.

並列關鍵字

Weaned piglet ； Bacillus coagulans ； Growth performance