植物乳杆菌对致病性肠炎沙门氏菌感染蛋鸡的生产性能及其蛋、粪含菌量的影响

doi:10.16431/j.cnki.1671-7236.2017.02.026

摘要/Abstract

摘要：

试验旨在研究植物乳杆菌（Lactobacillus plantarum，LP）对致病性肠炎沙门氏菌（Salmonella enteric，SE）感染蛋鸡的生产性能和鸡蛋、粪中病菌残留的影响。选用144只50周龄农大3号蛋鸡，分4个组，每组4个重复，每个重复9只鸡。空白对照组和阳性对照组饲喂基础日粮；土霉素组在基础日粮中添加5 mg/kg土霉素；乳杆菌组在基础日粮中添加10⁹ CFU/kg植物乳杆菌。阳性对照组、土霉素组和乳杆菌组蛋鸡在试验第22和24天口腔接种1 mL沙门氏菌（10⁹CFU/mL），试验期50 d。结果显示：攻毒前，各组生产性能指标无显著差异（P>0.05）；攻毒后，与空白对照组相比，感染前期阳性对照组平均蛋重显著降低（P < 0.05），料蛋比显著升高（P < 0.05），鸡蛋中沙门氏菌带菌率和粪中沙门氏菌含菌量显著升高（P < 0.05）。与阳性对照组相比，感染前期土霉素组和乳杆菌组蛋鸡平均蛋重分别提高5.43%（P < 0.05）、9.64%（P < 0.05），料蛋比分别降低11.51%（P < 0.05）、5.16%（P > 0.05）；感染后期乳杆菌组料蛋比降低9.96%（P < 0.05），乳杆菌组鸡蛋中沙门氏菌带菌率和粪中沙门氏菌含菌量分别比阳性对照组降低43.17%、23.93%（P < 0.05）。空白对照组、乳杆菌组和土霉素组间生产性能和鸡蛋大肠杆菌、沙门氏菌带菌率均无显著差异（P > 0.05）。以上结果表明，日粮中添加植物乳杆菌和土霉素均可改善沙门氏菌感染蛋鸡的生产性能，降低鸡蛋和粪中的沙门氏菌含量，提高家禽抗感染能力。植物乳杆菌具有无污染、无残留的特点，可作为家禽养殖中理想的抗生素替代品。

关键词: 植物乳杆菌; 肠炎沙门氏菌; 蛋鸡; 生产性能; 蛋、粪病菌含量

Abstract:

The experiment was conducted to study the influence of Lactobacillus plantarum (LP) on production performance, egg and feces Salmonella enteric (SE) residues of SE-infected hens. 144 fifty-week-old Nongda No.3 hens were randomly allocated to 4 treatments with 4 replicates of 9 hens each. The hens in blank control and positive control groups were fed the basal diet, terramycin group, the basal diet with terramycin (5 mg/kg), LP group, the basal diet with Lactobacillus plantarum (10⁹CFU/kg). The hens in positive control, terramycin and LP groups were oral inoculated with 1 mL SE (10⁹CFU/mL) on 22 and 24 d. The experiment lasted for 50 d. Before being vaccinated, the production performance of each group showed no significant difference (P > 0.05); After being vaccinated, in early period, compared with blank control group, the average egg weight significantly decreased (P < 0.05), the feed-egg ratio significantly increased (P < 0.05), and the SE content of eggs and feces significantly increased (P < 0.05) in positive control group. Compared with positive control group, the average egg weight in terramycin group and LP group increased by 5.43% and 9.64% respectively (P < 0.05), while the feed-egg ratio decreased by 11.51% (P < 0.05) and 5.16% (P > 0.05) respectively. In later period, the feed-egg ratio in LP group decreased by 9.96% (P < 0.05), SE content of eggs and feces in LP group decreased by 43.17% and 23.93% respectively (P < 0.05). The production performance and E. coli, SE-carrying rates of eggs had no significant difference among the blank control, LP and terramycin groups (P > 0.05). The results indicated that, supplemented with Lactobacillus plantarum or terramycin could improve the production performance, reduce the SE content in eggs and feces, and improve the ability to resist infection in hens. Because Lactobacillus plantarum had the characteristics of no pollution and no residue, it could be used as a kind of ideal substitute for antibiotics in poultry production.

Key words: Lactobacillus plantarum; Salmonella enteric; hen; production performance; bacteria content in egg and feces

中图分类号:

S816.7

杨亚晋, 郭爱伟, 张颖, 孙娅婕, 黄琰淖. 植物乳杆菌对致病性肠炎沙门氏菌感染蛋鸡的生产性能及其蛋、粪含菌量的影响[J]. 《中国畜牧兽医》, 2017, 44(2): 482-487.

YANG Ya-jin, GUO Ai-wei, ZHANG Ying, SUN Ya-jie, HUANG Yan-nao. Effects of Lactobacillus plantarum on Production Performance,Egg and Feces Bacteria content of Salmonella enteric-Infected Hens[J]. , 2017, 44(2): 482-487.

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