| Registro completo |
| Provedor de dados: |
Rev. Bras. Ciênc. Avic.
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| País: |
Brazil
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| Título: |
Influence of Pine Bark Tannin on Bacterial Pathogens Growth and Nitrogen Compounds on Changes in Composted Poultry Litter
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| Autores: |
Arzola-Alavarez,C
Castillo-Castillo,Y
Anderson,RC
Hume,ME
Ruiz-Barrera,O
Min,BR
Arzola-Rubio,A
Beier,RC
Salinas-Chavira,J
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| Data: |
2020-01-01
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| Ano: |
2020
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| Palavras-chave: |
Poultry litter
Condensed tannins
Uric acid
Bacterial pathogens
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| Resumo: |
ABSTRACT To study the antimicrobial and uric acid-preserving activity of pine bark tannin on poultry litter composting, antibiotic-free wood chip-based poultry litter was distributed (11 g) to 50-mL conical centrifuge tubes and immediately amended with 1.3 mL0.4 M sodium phosphate buffer (control) or with 1.3 mL condensed tannins from pine bark (Pinus palustris; 9 % tannin wt/vol in water). All tubes (n = 3 tubes/treatment) were inoculated with a novobiocin and naladixic acid-resistant Salmo-nella typhimurium (STNN) to achieve 3.0 log10 CFU/g and incubated at 37oC for 3 days to simulate an initial compost period. Wildtype E. coli and the challenge STNN strain as well as concentrations of ammonia, uric acid and urea were measured on days 0 and 3. Pine bark tannin treatment decreased (p<0.01) STNN populations in the litter by 0.6 log units compared to the controls. Wildtype E. coli populations were unaffected by tannin treatment (p>0.05). Ammonia accumulation decreased (p<0.01) 23% in tannin-treated litter compared to the control (2.8 ± 0.1 µmol/g). Conversely, the residual uric acid concentration was 1.6-fold higher (p=0.02) in litter treated with the pine bark tannin than in the control litter. Urea concentrations were unaffected by tannin treatment (p>0.05). Results suggest that pine bark tannin treatment may preserve uric acid and reduce ammonia volatilization in composted litter while aiding Salmonella control.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2020000100305
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| Editor: |
Fundação APINCO de Ciência e Tecnologia Avícolas
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| Relação: |
10.1590/1806-9061-2018-0911
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| Formato: |
text/html
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| Fonte: |
Brazilian Journal of Poultry Science v.22 n.1 2020
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| Direitos: |
info:eu-repo/semantics/openAccess
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