Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid
This study aimed at evaluating the intestinal integrity, using light and scanning electron microscopy (SEM), and the performance of broiler chickens fed additives alternative to antimicrobials. A total of 1080 male chicks were distributed according to a completely randomized experimental design, wit...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Fundação APINCO de Ciência e Tecnologia Avícolas
2014-12-01
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| Series: | Brazilian Journal of Poultry Science |
| Subjects: | |
| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400012&lng=en&tlng=en |
| _version_ | 1818543490178482176 |
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| author | BCS Fernandes MRFB Martins AA Mendes EL Milbradt C Sanfelice BB Martins EF Aguiar C Bresne |
| author_facet | BCS Fernandes MRFB Martins AA Mendes EL Milbradt C Sanfelice BB Martins EF Aguiar C Bresne |
| author_sort | BCS Fernandes |
| collection | DOAJ |
| description | This study aimed at evaluating the intestinal integrity, using light and scanning electron microscopy (SEM), and the performance of broiler chickens fed additives alternative to antimicrobials. A total of 1080 male chicks were distributed according to a completely randomized experimental design, with six treatments with six replicates of 30 birds each. The following treatments were evaluated: basal diet (control), basal diet supplemented with an antimicrobial, basal diet supplemented with a probiotic, basal diet supplemented with a prebiotic, basal diet with a symbiotic, and basal diet supplemented with organic acids. Weight gain, feed intake, feed conversion ratio and livability were recorded when broiler chickens were 10, 21, 35, and 42 days old. On day 42, 72 birds were individually weighed and sacrificed. In order to evaluate the morphometrics of the different intestinal wall layers, segments of the small intestine and the cecum were collected from two birds per replicate, and intestinal integrity (SEM) was evaluated in the same segments of two birds per treatment. During the starter period (1-21 days old), birds fed the alternative additives presented similar weight gain as those fed the antimicrobial product, but were not different from control birds. Feed conversion ratio of birds fed alternative additives was better than that of the control birds from one to 10 days of age, but not during the remaining rearing period, and was similar to the birds receiving the antimicrobial. The morphometric parameters of the different intestinal wall layers was not influenced by the treatments. During the total rearing period, the evaluated alternative additives did not improve intestinal integrity or broiler performance. |
| first_indexed | 2024-12-11T22:36:04Z |
| format | Article |
| id | doaj.art-6f0d82383a904b3c8e26af7144ccb149 |
| institution | Directory Open Access Journal |
| issn | 1806-9061 |
| language | English |
| last_indexed | 2024-12-11T22:36:04Z |
| publishDate | 2014-12-01 |
| publisher | Fundação APINCO de Ciência e Tecnologia Avícolas |
| record_format | Article |
| series | Brazilian Journal of Poultry Science |
| spelling | doaj.art-6f0d82383a904b3c8e26af7144ccb1492022-12-22T00:47:58ZengFundação APINCO de Ciência e Tecnologia AvícolasBrazilian Journal of Poultry Science1806-90612014-12-0116441742410.1590/1516-635X1604417-424S1516-635X2014000400012Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acidBCS Fernandes0MRFB Martins1AA Mendes2EL Milbradt3C Sanfelice4BB Martins5EF Aguiar6C Bresne7Universidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaUniversidade Estadual PaulistaThis study aimed at evaluating the intestinal integrity, using light and scanning electron microscopy (SEM), and the performance of broiler chickens fed additives alternative to antimicrobials. A total of 1080 male chicks were distributed according to a completely randomized experimental design, with six treatments with six replicates of 30 birds each. The following treatments were evaluated: basal diet (control), basal diet supplemented with an antimicrobial, basal diet supplemented with a probiotic, basal diet supplemented with a prebiotic, basal diet with a symbiotic, and basal diet supplemented with organic acids. Weight gain, feed intake, feed conversion ratio and livability were recorded when broiler chickens were 10, 21, 35, and 42 days old. On day 42, 72 birds were individually weighed and sacrificed. In order to evaluate the morphometrics of the different intestinal wall layers, segments of the small intestine and the cecum were collected from two birds per replicate, and intestinal integrity (SEM) was evaluated in the same segments of two birds per treatment. During the starter period (1-21 days old), birds fed the alternative additives presented similar weight gain as those fed the antimicrobial product, but were not different from control birds. Feed conversion ratio of birds fed alternative additives was better than that of the control birds from one to 10 days of age, but not during the remaining rearing period, and was similar to the birds receiving the antimicrobial. The morphometric parameters of the different intestinal wall layers was not influenced by the treatments. During the total rearing period, the evaluated alternative additives did not improve intestinal integrity or broiler performance.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400012&lng=en&tlng=enScanning electron microscopymorphometricsintestinal mucosaintestinal wall |
| spellingShingle | BCS Fernandes MRFB Martins AA Mendes EL Milbradt C Sanfelice BB Martins EF Aguiar C Bresne Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid Brazilian Journal of Poultry Science Scanning electron microscopy morphometrics intestinal mucosa intestinal wall |
| title | Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid |
| title_full | Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid |
| title_fullStr | Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid |
| title_full_unstemmed | Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid |
| title_short | Intestinal integrity and performance of broiler chickens fed a probiotic, a prebiotic, or an organic acid |
| title_sort | intestinal integrity and performance of broiler chickens fed a probiotic a prebiotic or an organic acid |
| topic | Scanning electron microscopy morphometrics intestinal mucosa intestinal wall |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2014000400012&lng=en&tlng=en |
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