Impact of combined xylanase and beta-glucanase enzymes on digesta transit time, short-chain fatty acids, and caecal thermal profile of broilers fed corn-soy-based diets
A study was conducted to evaluate the effects of including a xylanase + beta-glucanase enzyme product in corn-soy-based diets on performance, caecal short-chain fatty acids and thermal profile, ileal digestibility, and intestinal kinetics of broiler chickens. A total of 744 male day-old chicks were...
| Autores: | , , , , , , , , , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | Brasil |
| Institución: | Universidade Estadual Paulista (UNESP) |
| Repositorio: | Repositório Institucional da UNESP |
| Idioma: | inglés |
| OAI Identifier: | oai:repositorio.unesp.br:11449/218577 |
| Acceso en línea: | http://dx.doi.org/10.1139/cjas-2021-0032 http://hdl.handle.net/11449/218577 |
| Access Level: | acceso abierto |
| Palabra clave: | carbohydrase NSP enzymes thermography |
| Sumario: | A study was conducted to evaluate the effects of including a xylanase + beta-glucanase enzyme product in corn-soy-based diets on performance, caecal short-chain fatty acids and thermal profile, ileal digestibility, and intestinal kinetics of broiler chickens. A total of 744 male day-old chicks were randomly allotted to 24 floor pens and distributed in a 2 x 2 factorial arrangement with low or standard energy level x without or with 100 g of the enzyme per ton of feed. Enzyme supplementation improved bodyweight gain from 1 to 21 d (P < 0.05). An increased caecal concentration of acetic acid was observed when the enzyme was added to the low-energy diet (P < 0.05). The pH of the caecal content was reduced (P < 0.01), and the caecal temperature was increased by low-energy diets (P < 0.05). The apparent ileal digestibility of energy was improved by the enzyme (P < 0.01). The addition of the enzyme increased the mean retention time in the distal ileum (P < 0.05). In summary, the addition of a xylanase + beta-glucanase enzyme product in corn-based diets increases the retention time of digesta in the distal ileum and the caecal acetic acid concentration, improves ileal digestibility of energy and performance from 1 to 21 d in broiler chickens fed corn-soy-based diets. |
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