Autor: |
Larissa Pereira Maria, Rony Riveros Lizana, Rosiane de Souza Camargos, Bruno Balbino Leme, Bárbara Vitória Marçal, Nilva Kazue Sakomura, Marcos Kipper |
Jazyk: |
angličtina |
Rok vydání: |
2024 |
Předmět: |
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Zdroj: |
Poultry, Vol 3, Iss 3, Pp 239-266 (2024) |
Druh dokumentu: |
article |
ISSN: |
2674-1164 |
DOI: |
10.3390/poultry3030019 |
Popis: |
The use of antibiotics in poultry farming has been associated with bacterial resistance in humans, leading to a ban on their inclusion in chicken diets. Therefore, the objective was to evaluate the effects of probiotics and β-mannanase on the growth performance and intestinal health of broiler chickens challenged by Eimeria maxima and Clostridium perfringens. For this, 2100 one-day-old male Ross 308 chicks were used. The treatments were as follows: T1—Negative control (NC) unchallenged birds; T2—Positive control (PC) challenged with E. maxima + C. perfringens; T3—PC + Antibiotic (Enramycin 8%-125 g/ton); T4—PC + β-mannanase (HemicellHT; 300 g/ton); T5—PC + probiotic (ProtexinTM; 150 g/ton); T6—PC + β-mannanase + probiotic. Significant differences (p < 0.05) were observed from 1 to 42 days in the variables body weight, body weight gain and feed intake, and the NC treatment presented higher values compared to the PC and PC + probiotic groups. The villus/crypt ratio in the duodenum increased in the PC + β-man + prob treatment, differing from the NC, PC and PC + probiotic (p < 0.05) treatments. The use of β-mannanase, probiotics or both together is effective to mitigate the effects of production challenges, through the maintenance of the intestine by modulating action on the cecum microbiome and intestinal morphometry. |
Databáze: |
Directory of Open Access Journals |
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