The effect of Bacillus amyloliquefaciens on productive performance of laying hens
This 6-weeks study was conducted to investigate the efficiency of Bacillus amyloliquefaciens as probiotic in laying hens. A total of 180 ISA brown laying hens (28-weeks-old) were randomly allocated into 90 cages (two hens per cage), and then assigned to three dietary treatments with 10 replicates pe...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Taylor & Francis Group
2018-04-01
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| Series: | Italian Journal of Animal Science |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1080/1828051X.2017.1394169 |
| _version_ | 1819060394192273408 |
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| author | Ren Yong Tang Zhou Lin Wu Guo Ze Wang Wen Chao Liu |
| author_facet | Ren Yong Tang Zhou Lin Wu Guo Ze Wang Wen Chao Liu |
| author_sort | Ren Yong Tang |
| collection | DOAJ |
| description | This 6-weeks study was conducted to investigate the efficiency of Bacillus amyloliquefaciens as probiotic in laying hens. A total of 180 ISA brown laying hens (28-weeks-old) were randomly allocated into 90 cages (two hens per cage), and then assigned to three dietary treatments with 10 replicates per treatment (each replicate with three adjacent cages): (i) CON, basal diet (antibiotic-free); (ii) P1, CON +1.0 × 107 cfu/kg probiotic; (iii) P2, CON +2.0 × 107 cfu/kg probiotic. The probiotic was a commercial product. The Hen Day production was daily recorded. The egg quality parameters were measured by using egg multi-tester. The caecal contents and fresh excreta were collected for measuring the caecal microflora and excreta gas emission, respectively. All data were analysed using the GLM procedure of SAS. Differences among treatment means were determined using the Tukey’s range test. During 4–6 weeks, hens fed P1 and P2 diets had a greater (p < .05) egg production than those fed CON diets. Additionally, birds in P2 treatments had higher (p < .05) eggshell strength and eggshell thickness than those in CON treatment at 3 and 6 weeks. The caecal Lactobacillus numbers were increased (p < .05) while the caecal Escherichia coli and Salmonella concentrations and the excreta NH3 emission were decreased (p < .05) in the P1 and P2 groups. In conclusion, dietary B. amyloliquefaciens supplementation had positive effects on productive performance in laying hens. |
| first_indexed | 2024-12-21T14:26:17Z |
| format | Article |
| id | doaj.art-776e91759f89422b92522bc434d93c8d |
| institution | Directory Open Access Journal |
| issn | 1594-4077 1828-051X |
| language | English |
| last_indexed | 2024-12-21T14:26:17Z |
| publishDate | 2018-04-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Italian Journal of Animal Science |
| spelling | doaj.art-776e91759f89422b92522bc434d93c8d2022-12-21T19:00:38ZengTaylor & Francis GroupItalian Journal of Animal Science1594-40771828-051X2018-04-0117243644110.1080/1828051X.2017.13941691394169The effect of Bacillus amyloliquefaciens on productive performance of laying hensRen Yong Tang0Zhou Lin Wu1Guo Ze Wang2Wen Chao Liu3Chengdu UniversitySichuan Minzu CollegeChengdu UniversityDankook UniversityThis 6-weeks study was conducted to investigate the efficiency of Bacillus amyloliquefaciens as probiotic in laying hens. A total of 180 ISA brown laying hens (28-weeks-old) were randomly allocated into 90 cages (two hens per cage), and then assigned to three dietary treatments with 10 replicates per treatment (each replicate with three adjacent cages): (i) CON, basal diet (antibiotic-free); (ii) P1, CON +1.0 × 107 cfu/kg probiotic; (iii) P2, CON +2.0 × 107 cfu/kg probiotic. The probiotic was a commercial product. The Hen Day production was daily recorded. The egg quality parameters were measured by using egg multi-tester. The caecal contents and fresh excreta were collected for measuring the caecal microflora and excreta gas emission, respectively. All data were analysed using the GLM procedure of SAS. Differences among treatment means were determined using the Tukey’s range test. During 4–6 weeks, hens fed P1 and P2 diets had a greater (p < .05) egg production than those fed CON diets. Additionally, birds in P2 treatments had higher (p < .05) eggshell strength and eggshell thickness than those in CON treatment at 3 and 6 weeks. The caecal Lactobacillus numbers were increased (p < .05) while the caecal Escherichia coli and Salmonella concentrations and the excreta NH3 emission were decreased (p < .05) in the P1 and P2 groups. In conclusion, dietary B. amyloliquefaciens supplementation had positive effects on productive performance in laying hens.http://dx.doi.org/10.1080/1828051X.2017.1394169bacillus amyloliquefaciensproductive performancecaecal microfloraexcreta nh3 emissionlaying hens |
| spellingShingle | Ren Yong Tang Zhou Lin Wu Guo Ze Wang Wen Chao Liu The effect of Bacillus amyloliquefaciens on productive performance of laying hens Italian Journal of Animal Science bacillus amyloliquefaciens productive performance caecal microflora excreta nh3 emission laying hens |
| title | The effect of Bacillus amyloliquefaciens on productive performance of laying hens |
| title_full | The effect of Bacillus amyloliquefaciens on productive performance of laying hens |
| title_fullStr | The effect of Bacillus amyloliquefaciens on productive performance of laying hens |
| title_full_unstemmed | The effect of Bacillus amyloliquefaciens on productive performance of laying hens |
| title_short | The effect of Bacillus amyloliquefaciens on productive performance of laying hens |
| title_sort | effect of bacillus amyloliquefaciens on productive performance of laying hens |
| topic | bacillus amyloliquefaciens productive performance caecal microflora excreta nh3 emission laying hens |
| url | http://dx.doi.org/10.1080/1828051X.2017.1394169 |
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