Cargando…
Feed intake, nutrient digestibility, and selected rumen parameters in feedlot bulls fed diets with different feed additives
An experiment was conducted to evaluate the feed intake, nutrient digestibility and selected rumen parameters in feedlot bulls fed diets containing different feed additives. Six rumen-cannulated Nellore bulls (age = 8 ± 1.0 months; initial BW = 225 ± 13.2 kg) were distributed in a 6 × 6 Latin square...
Autores principales: | , , , , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Public Library of Science
2021
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8562795/ https://www.ncbi.nlm.nih.gov/pubmed/34727141 http://dx.doi.org/10.1371/journal.pone.0259414 |
_version_ | 1784593313780727808 |
---|---|
author | Silva, Breno de Castro Pacheco, Marcos Vinicius Carneiro Godoi, Letícia Artuzo de Souza, Gilyard Angelo Pinheiro Trópia, Nathália Veloso Pucetti, Pauliane Silva, Flávia Adriane de Sales Menezes, Ana Clara Baião Rennó, Luciana Navajas Paulino, Mário Fonseca Schoonmaker, Jon Patrick Valadares Filho, Sebastião de Campos |
author_facet | Silva, Breno de Castro Pacheco, Marcos Vinicius Carneiro Godoi, Letícia Artuzo de Souza, Gilyard Angelo Pinheiro Trópia, Nathália Veloso Pucetti, Pauliane Silva, Flávia Adriane de Sales Menezes, Ana Clara Baião Rennó, Luciana Navajas Paulino, Mário Fonseca Schoonmaker, Jon Patrick Valadares Filho, Sebastião de Campos |
author_sort | Silva, Breno de Castro |
collection | PubMed |
description | An experiment was conducted to evaluate the feed intake, nutrient digestibility and selected rumen parameters in feedlot bulls fed diets containing different feed additives. Six rumen-cannulated Nellore bulls (age = 8 ± 1.0 months; initial BW = 225 ± 13.2 kg) were distributed in a 6 × 6 Latin square design. Six experimental diets based on 30% corn silage and 70% concentrate on a dry matter (DM) basis were evaluated. Diets differed in feed additive on a DM basis, as follows: 1.4% bicarbonate and magnesium oxide in 3:1 ratio (BOX); 36 ppm lasalocid sodium (LAS); 30 ppm monensin sodium (MON); 25 ppm virginiamycin (VIR); 30 ppm monensin sodium plus 25 ppm virginiamycin (MV); and 3.15% commercial mineral supplement containing D-limonene and exogenous α-amylase (EOA). The experiment lasted 144 d, with six periods of 24 d. Each period consisted of 14 d for dietary adaptation, 3 d for feces and urine collection, and 7 d for omasal and ruminal digesta collection. Bulls fed the BOX diet showed greater (P < 0.05) intake of DM, organic matter (OM), neutral detergent fiber (apNDF), crude protein (CP), and starch compared to the other diets. Diets with LAS, MON, VIR, MV, or EOA did not influence (P > 0.05) the DM, OM, apNDF, CP, or starch intake of feedlot bulls. Bulls fed the EOA diet showed greater (trend; P = 0.09) ruminal digestibility of starch compared to the other diets. The feed additives did not affect (P > 0.05) the intestinal or total tract digestibility of starch, rumen pH, microbial efficiency, total rumen fluid, dilution rate, rate of intake, rate of degradation, or passage rate of the DM, OM, apNDF, and starch. In conclusion, LAS, MON, VIR, MV, and EOA diets reduced nutrient intake compared to BOX. Although all feed additives presented similar effects on rumen pH, temperature, and kinetics the presence of exogenous α-amylase in the EOA diet may increase ruminal starch digestibility and apparent total tract digestibility of DM and OM. |
format | Online Article Text |
id | pubmed-8562795 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | Public Library of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-85627952021-11-03 Feed intake, nutrient digestibility, and selected rumen parameters in feedlot bulls fed diets with different feed additives Silva, Breno de Castro Pacheco, Marcos Vinicius Carneiro Godoi, Letícia Artuzo de Souza, Gilyard Angelo Pinheiro Trópia, Nathália Veloso Pucetti, Pauliane Silva, Flávia Adriane de Sales Menezes, Ana Clara Baião Rennó, Luciana Navajas Paulino, Mário Fonseca Schoonmaker, Jon Patrick Valadares Filho, Sebastião de Campos PLoS One Research Article An experiment was conducted to evaluate the feed intake, nutrient digestibility and selected rumen parameters in feedlot bulls fed diets containing different feed additives. Six rumen-cannulated Nellore bulls (age = 8 ± 1.0 months; initial BW = 225 ± 13.2 kg) were distributed in a 6 × 6 Latin square design. Six experimental diets based on 30% corn silage and 70% concentrate on a dry matter (DM) basis were evaluated. Diets differed in feed additive on a DM basis, as follows: 1.4% bicarbonate and magnesium oxide in 3:1 ratio (BOX); 36 ppm lasalocid sodium (LAS); 30 ppm monensin sodium (MON); 25 ppm virginiamycin (VIR); 30 ppm monensin sodium plus 25 ppm virginiamycin (MV); and 3.15% commercial mineral supplement containing D-limonene and exogenous α-amylase (EOA). The experiment lasted 144 d, with six periods of 24 d. Each period consisted of 14 d for dietary adaptation, 3 d for feces and urine collection, and 7 d for omasal and ruminal digesta collection. Bulls fed the BOX diet showed greater (P < 0.05) intake of DM, organic matter (OM), neutral detergent fiber (apNDF), crude protein (CP), and starch compared to the other diets. Diets with LAS, MON, VIR, MV, or EOA did not influence (P > 0.05) the DM, OM, apNDF, CP, or starch intake of feedlot bulls. Bulls fed the EOA diet showed greater (trend; P = 0.09) ruminal digestibility of starch compared to the other diets. The feed additives did not affect (P > 0.05) the intestinal or total tract digestibility of starch, rumen pH, microbial efficiency, total rumen fluid, dilution rate, rate of intake, rate of degradation, or passage rate of the DM, OM, apNDF, and starch. In conclusion, LAS, MON, VIR, MV, and EOA diets reduced nutrient intake compared to BOX. Although all feed additives presented similar effects on rumen pH, temperature, and kinetics the presence of exogenous α-amylase in the EOA diet may increase ruminal starch digestibility and apparent total tract digestibility of DM and OM. Public Library of Science 2021-11-02 /pmc/articles/PMC8562795/ /pubmed/34727141 http://dx.doi.org/10.1371/journal.pone.0259414 Text en © 2021 Silva et al https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/) , which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
spellingShingle | Research Article Silva, Breno de Castro Pacheco, Marcos Vinicius Carneiro Godoi, Letícia Artuzo de Souza, Gilyard Angelo Pinheiro Trópia, Nathália Veloso Pucetti, Pauliane Silva, Flávia Adriane de Sales Menezes, Ana Clara Baião Rennó, Luciana Navajas Paulino, Mário Fonseca Schoonmaker, Jon Patrick Valadares Filho, Sebastião de Campos Feed intake, nutrient digestibility, and selected rumen parameters in feedlot bulls fed diets with different feed additives |
title | Feed intake, nutrient digestibility, and selected rumen parameters in feedlot bulls fed diets with different feed additives |
title_full | Feed intake, nutrient digestibility, and selected rumen parameters in feedlot bulls fed diets with different feed additives |
title_fullStr | Feed intake, nutrient digestibility, and selected rumen parameters in feedlot bulls fed diets with different feed additives |
title_full_unstemmed | Feed intake, nutrient digestibility, and selected rumen parameters in feedlot bulls fed diets with different feed additives |
title_short | Feed intake, nutrient digestibility, and selected rumen parameters in feedlot bulls fed diets with different feed additives |
title_sort | feed intake, nutrient digestibility, and selected rumen parameters in feedlot bulls fed diets with different feed additives |
topic | Research Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8562795/ https://www.ncbi.nlm.nih.gov/pubmed/34727141 http://dx.doi.org/10.1371/journal.pone.0259414 |
work_keys_str_mv | AT silvabrenodecastro feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT pachecomarcosviniciuscarneiro feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT godoileticiaartuzo feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT desouzagilyardangelopinheiro feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT tropianathaliaveloso feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT pucettipauliane feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT silvaflaviaadrianedesales feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT menezesanaclarabaiao feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT rennoluciananavajas feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT paulinomariofonseca feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT schoonmakerjonpatrick feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives AT valadaresfilhosebastiaodecampos feedintakenutrientdigestibilityandselectedrumenparametersinfeedlotbullsfeddietswithdifferentfeedadditives |