| Autor: |
Eunjoo Kim, Amy F. Moss, Natalie K. Morgan, Kosar Gharib-Naseri, Peter Ader, Mingan Choct |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Zdroj: |
Animal Nutrition, Vol 10, Iss , Pp 54-67 (2022) |
| Druh dokumentu: |
article |
| ISSN: |
2405-6545 |
| DOI: |
10.1016/j.aninu.2022.01.009 |
| Popis: |
The present study investigated whether supplementing fibre-degrading enzymes can ameliorate the severity of subclinical necrotic enteritis (NE) in broiler chickens offered wheat- or maize-based diets. A total of 1,544 mixed-sex broiler chickens were assigned to 16 experimental treatments as a 2 × 2 × 4 factorial arrangement of treatments. The factors were the following: NE challenge, yes or no; diet type, wheat- or maize-based; and enzyme supplementation, control (no enzyme), family 10 xylanase (XYN10), family 11 xylanase (XYN11) or β-mannanase (MAN). Each treatment was replicated 6 times, with 16 birds per replicate pen. A three-way challenge × diet type × enzyme interaction occurred for body weight at 21 d of age (P = 0.025) and overall feed conversion ratio (P = 0.001). In the non-challenged birds fed the wheat-based diet, supplementing MAN increased d 21 body weight compared to the control. In challenged birds fed the maize-based diet, supplemental XYN11 impeded body weight and overall FCR compared to the control. Birds offered the maize-based diet presented heavier relative gizzard weights at both 16 and 21 d of age (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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