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Efficiency of Amino Acid Utilization in Nellore Cattle Grazing Low-Quality Forage Supplemented with Different Sources of Nitrogen
This study aimed to evaluate the effects of supplementation with non-protein nitrogen (NPN) or ruminal undegradable protein (RUP) on intake, digestibility, and amino acid (AA) use efficiency of Nellore cattle grazing during the dry season. Eight Nellore steers (12 ± 2 months old) were used in quadru...
Autores principales: | , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456030/ https://www.ncbi.nlm.nih.gov/pubmed/37629480 http://dx.doi.org/10.3390/life13081622 |
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author | Dias, Ana Veronica Lino Messana, Juliana Duarte Granja-Salcedo, Yury Tatiana Alfonso, Yeison Fabian Murilo Silva, Lorrayny Galoro Camargo, Karine Dalla Vecchia Alves, Kênia Larissa Gomes Carvalho Gonçalves, Paloma Helena Reis, Ricardo Andrade Berchielli, Telma Teresinha |
author_facet | Dias, Ana Veronica Lino Messana, Juliana Duarte Granja-Salcedo, Yury Tatiana Alfonso, Yeison Fabian Murilo Silva, Lorrayny Galoro Camargo, Karine Dalla Vecchia Alves, Kênia Larissa Gomes Carvalho Gonçalves, Paloma Helena Reis, Ricardo Andrade Berchielli, Telma Teresinha |
author_sort | Dias, Ana Veronica Lino |
collection | PubMed |
description | This study aimed to evaluate the effects of supplementation with non-protein nitrogen (NPN) or ruminal undegradable protein (RUP) on intake, digestibility, and amino acid (AA) use efficiency of Nellore cattle grazing during the dry season. Eight Nellore steers (12 ± 2 months old) were used in quadruplicate Latin squares (2 × 2). The animals were placed on Urochloa brizantha cv. Xaraés under continuous grazing. The treatments included the following: (1) urea supplementation (NPN) and (2) supplementation of corn gluten meal 60 (CGM, RUP). Animals supplemented with CGM showed higher intakes of dry matter (DM) supplement, total AA, essential AA, and individual AA. The supplementation did not affect the total AA digestibility, total AA flux, and the AA fluxes of microbial origin and RUP from the diet (p > 0.05). The ruminal microorganism origin flux of total AA to the duodenum was 44.5% and 52.7% for animals supplemented with NPN and CGM, respectively. Animals supplemented with CGM showed an increase in blood concentrations of isoleucine (+19.09 μmol/L), cystine (+27.29 μmol/L), and albumin (+0.11 g/dL) (p < 0.05), but this increase was not accompanied by an improvement in N use efficiency of steers (p > 0.05). RUP supplementation via CGM can be an efficient nutritional strategy to enhance the intake and absorption of AA by Nellore cattle grazing low-quality forage during the dry season. |
format | Online Article Text |
id | pubmed-10456030 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-104560302023-08-26 Efficiency of Amino Acid Utilization in Nellore Cattle Grazing Low-Quality Forage Supplemented with Different Sources of Nitrogen Dias, Ana Veronica Lino Messana, Juliana Duarte Granja-Salcedo, Yury Tatiana Alfonso, Yeison Fabian Murilo Silva, Lorrayny Galoro Camargo, Karine Dalla Vecchia Alves, Kênia Larissa Gomes Carvalho Gonçalves, Paloma Helena Reis, Ricardo Andrade Berchielli, Telma Teresinha Life (Basel) Article This study aimed to evaluate the effects of supplementation with non-protein nitrogen (NPN) or ruminal undegradable protein (RUP) on intake, digestibility, and amino acid (AA) use efficiency of Nellore cattle grazing during the dry season. Eight Nellore steers (12 ± 2 months old) were used in quadruplicate Latin squares (2 × 2). The animals were placed on Urochloa brizantha cv. Xaraés under continuous grazing. The treatments included the following: (1) urea supplementation (NPN) and (2) supplementation of corn gluten meal 60 (CGM, RUP). Animals supplemented with CGM showed higher intakes of dry matter (DM) supplement, total AA, essential AA, and individual AA. The supplementation did not affect the total AA digestibility, total AA flux, and the AA fluxes of microbial origin and RUP from the diet (p > 0.05). The ruminal microorganism origin flux of total AA to the duodenum was 44.5% and 52.7% for animals supplemented with NPN and CGM, respectively. Animals supplemented with CGM showed an increase in blood concentrations of isoleucine (+19.09 μmol/L), cystine (+27.29 μmol/L), and albumin (+0.11 g/dL) (p < 0.05), but this increase was not accompanied by an improvement in N use efficiency of steers (p > 0.05). RUP supplementation via CGM can be an efficient nutritional strategy to enhance the intake and absorption of AA by Nellore cattle grazing low-quality forage during the dry season. MDPI 2023-07-25 /pmc/articles/PMC10456030/ /pubmed/37629480 http://dx.doi.org/10.3390/life13081622 Text en © 2023 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Dias, Ana Veronica Lino Messana, Juliana Duarte Granja-Salcedo, Yury Tatiana Alfonso, Yeison Fabian Murilo Silva, Lorrayny Galoro Camargo, Karine Dalla Vecchia Alves, Kênia Larissa Gomes Carvalho Gonçalves, Paloma Helena Reis, Ricardo Andrade Berchielli, Telma Teresinha Efficiency of Amino Acid Utilization in Nellore Cattle Grazing Low-Quality Forage Supplemented with Different Sources of Nitrogen |
title | Efficiency of Amino Acid Utilization in Nellore Cattle Grazing Low-Quality Forage Supplemented with Different Sources of Nitrogen |
title_full | Efficiency of Amino Acid Utilization in Nellore Cattle Grazing Low-Quality Forage Supplemented with Different Sources of Nitrogen |
title_fullStr | Efficiency of Amino Acid Utilization in Nellore Cattle Grazing Low-Quality Forage Supplemented with Different Sources of Nitrogen |
title_full_unstemmed | Efficiency of Amino Acid Utilization in Nellore Cattle Grazing Low-Quality Forage Supplemented with Different Sources of Nitrogen |
title_short | Efficiency of Amino Acid Utilization in Nellore Cattle Grazing Low-Quality Forage Supplemented with Different Sources of Nitrogen |
title_sort | efficiency of amino acid utilization in nellore cattle grazing low-quality forage supplemented with different sources of nitrogen |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10456030/ https://www.ncbi.nlm.nih.gov/pubmed/37629480 http://dx.doi.org/10.3390/life13081622 |
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