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In vitro impact of condensed tannins on the caecal metabolites of chickens / Impacto in vitro de taninos condensados nos metabólitos cecais de frangos de corte
Dakheel, Mohammed Munis; Ali Al-Bedhawi, Mohammed Abdalmalek; Al-Mnaser, Afnan Ahmed; Woodward, Martin John; Mora-Ortiz, Marina; Rymer, Caroline.
  • Dakheel, Mohammed Munis; University of Baghdad. College of Veterinary Medicine. Department of Veterinary Public Health. Baghdad. IQ
  • Ali Al-Bedhawi, Mohammed Abdalmalek; University of Baghdad. Institute of Genetic Engineering and Biotechnology. Baghdad. IQ
  • Al-Mnaser, Afnan Ahmed; University of Reading. Department of Food and Nutritional Sciences. Reading. GB
  • Woodward, Martin John; Kings' College London. Department of Twin Research. London. GB
  • Mora-Ortiz, Marina; University of Reading. Department of Food and Nutritional Sciences. Reading. GB
  • Rymer, Caroline; University of Reading. School of Agriculture. Policy and Development. Reading. GB
Article in English | LILACS, VETINDEX | ID: biblio-1344678
ABSTRACT
Tannins are a diverse group of plant phenolic compounds. Condensed tannins (CTs) represent a major subgroup of tannins and were extracted from tilia (Tilia L.) flowers and black locust (Robinia pseudoacacia) leaves. These extracts were examined for their effects on the metabolic profile of chicken caeca. By using in vitro, a nuclear magnetic resonance (1H-NMR), which was combined with multivariate statistics, the current study was applied for the first time to investigate how three different CT compositions, procyanidins (PC) and/or prodelphinidins (PD) units influenced the metabolic end-products in caecal contents of chickens. In the presence of tannins, glutamate, leucine, lysine, pyroglutamate, phenylalanine, proline, and sarcosine were significantly decreased. CT extracts significantly influenced the fermentation, increasing the concentrations of some fatty acids such as acetate, butyrate, and propionate whereas. In contrast, lactate decreased between the treatments. This study identified the key structural features of CTs that contain either high molar proportions of PD or PC, which might be useful to improve the efficiency of feed utilization in chickens.(AU)
RESUMO
Taninos são um grupo diversificado de compostos fenólicos derivados de plantas. Os taninos condensados (TCs) representam o maior subgrupo de taninos extraídos das flores de tília (Tilia L) e de folhas negras (acácia-bastarda). Estes extratos foram examinados para a avaliação dos seus efeitos no perfil metabólico do ceco de frangos de corte. Com o emprego da ressonância magnética nuclear in vitro (1H-NMR) combinada com estatística multivariada, o presente trabalho foi aplicado pela primeira vez para investigar como três diferentes composições de TCs, unidades de procianidinas (PC) e/ou prodelfinidinas (PD) influenciariam os produtos metabólicos finais dos conteúdos cecais de frangos de corte. Na presença de taninos, houve um significativo decréscimo de glutamato, leucina, lisina, piroglutamato, fenilalanina, prolina e sarcosina. Os extratos de TCs influenciaram significativamente a fermentação, aumentando as concentrações de alguns ácidos graxos, tais como o acetato, butirato e propionato, enquanto em contraste, houve um decréscimo do lactato entre os tratamentos. Este trabalho identificou aspectos estruturais chave que os TCs contêm, tanto as altas proporções molares de PD como as de PC, as quais podem ser úteis para aumentar a utilização de alimentos em frangos de corte.(AU)
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Tannins / In Vitro Techniques / Chickens Limits: Animals Language: English Journal: Braz. J. Vet. Res. Anim. Sci. (Online) Year: 2021 Type: Article Institution/Affiliation country: Kings' College London/GB / University of Baghdad/IQ / University of Reading/GB

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Full text: Available Index: LILACS (Americas) Main subject: Tannins / In Vitro Techniques / Chickens Limits: Animals Language: English Journal: Braz. J. Vet. Res. Anim. Sci. (Online) Year: 2021 Type: Article Institution/Affiliation country: Kings' College London/GB / University of Baghdad/IQ / University of Reading/GB