Effect of Select Tannin Sources on Pathogen Control and Microbial Nitrogen Metabolism in Composted Poultry Litter Intended for Use as a Ruminant Crude Protein Feedstuff

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:33:33Z
Fecha de publicación2022-01-01
ResumenPoultry litter is a good crude protein supplement for ruminants but must be treated to kill pathogens before feeding. Composting effectively kills pathogens but risks loss of ammonia due to uric acid degradation. The objectives of this study were to test the ability of tannins to reduce pathogens and preserve uric acid during poultry litter composting. In two experiments, poultry litter was mixed with phosphate buffer and distributed to 50-ml tubes (three tubes/treatment per sample day) amended with 1 ml buffer alone or buffer containing pine bark, quebracho, chestnut, or mimosa tannins. Treatments achieved 0.63\% (wt/wt) quebracho, chestnut, or mimosa tannins in experiment 1, or 4.5\% pine bark or 9\% quebracho, chestnut, or mimosa tannins in experiment 2. Tubes were inoculated with a novobiocin- and nalidixic acid-resistant Salmonella typhimurium, closed with caps, and incubated at successive 3-day increments at 22, 37, and 42 degrees C, respectively. In experiment 1, bacterial counts in contents collected on days 0, 6, and 9 revealed a treatment by day effect (p < 0.03), with the Salmonella challenge being 1.3 log(10) CFU/g higher in quebracho-treated composts than in untreated controls after 6 days of composting. After 9 days of composting, Salmonella, wildtype Escherichia coli, and total aerobes in untreated and all tannin-treated composts were decreased by about 2.0 log(10) CFU/g compared to day 0 numbers (3.06, 3.75, and 7.77 log(10) CFU/g, respectively). Urea and ammonia concentrations tended (p < 0.10) to be increased in chestnut-treated composts compared to controls and concentrations of uric acid, urea, and ammonia were higher (p < 0.05) after 9 days of composting than on day 0. Despite higher tannin application in experiment 2, antibacterial effects of treatment or day of composting were not observed (p > 0.05). However, treatment by time of composting interactions was observed (p < 0.05), with quebracho- and chestnut-treated composts accumulating more uric acid after 24 h and 9 days of composting and chestnut-, mimosa- or quebracho-treated composts accumulating less ammonia than untreated composts. Results demonstrate that composting may effectively control pathogens and that tannin treatment can help preserve the crude protein quality of composting poultry litter.es_ES
Doihttps://doi.org/10.3389/fvets.2022.930980es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/5377
Idiomaenes_ES
EditorialFRONTIERS MEDIA SAes_ES
RelaciónFrontiers in Veterinary Sciencees_ES
URL relacionadohttps://doi.org/10.3389/fvets.2022.930980es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteFrontiers in Veterinary Science
Palabra claveEscherichia colies_ES
Palabra clavenitrogen metabolismes_ES
Palabra clavepoultry litteres_ES
Palabra claveSalmonellaes_ES
Palabra clavetanninses_ES
TítuloEffect of Select Tannin Sources on Pathogen Control and Microbial Nitrogen Metabolism in Composted Poultry Litter Intended for Use as a Ruminant Crude Protein Feedstuffes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorArzola-Alvarez, Claudio
AutorAnderson, Robin C.
AutorHume, Michael E.
AutorLedezma, Evelyn
AutorRuiz-Barrera, Oscar
AutorCastillo-Castillo, Yamicela
AutorArzola-Rubio, Alejandro
AutorOntiveros-Magadan, Marina
AutorMin, Byeng Ryel
AutorWottlin, Lauren R.
AutorCopado, Ramon
AutorSalinas-Chavira, Jamie
AutorArzola-Alvarez, Claudioes_ES
AutorAnderson, Robin C.es_ES
AutorHume, Michael E.es_ES
AutorLedezma, Evelynes_ES
AutorRuiz-Barrera, Oscares_ES
AutorCastillo-Castillo, Yamicelaes_ES
AutorArzola-Rubio, Alejandroes_ES
AutorOntiveros-Magadan, Marinaes_ES
AutorMin, Byeng Ryeles_ES
AutorWottlin, Lauren R.es_ES
AutorCopado, Ramones_ES
AutorSalinas-Chavira, Jamiees_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
URL relacionadahttps://doi.org/10.3389/fvets.2022.930980
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen9es_ES

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