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Effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oil
A dose-response experiment was designed to examine the effect of 3-nitrooxypropanol (3-NOP) on methane (CH(4)) emissions, rumen function and performance of feedlot cattle fed a tempered barley-based diet with canola oil. Twenty Angus steers of initial body weight (BW) of 356 ± 14.4 kg were allocated...
Autores principales: | , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
Oxford University Press
2023
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10370881/ https://www.ncbi.nlm.nih.gov/pubmed/37429613 http://dx.doi.org/10.1093/jas/skad237 |
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author | Almeida, Amelia K Cowley, Frances McMeniman, Joe P Karagiannis, Alex Walker, Nicola Tamassia, Luis F M McGrath, Joseph J Hegarty, Roger S |
author_facet | Almeida, Amelia K Cowley, Frances McMeniman, Joe P Karagiannis, Alex Walker, Nicola Tamassia, Luis F M McGrath, Joseph J Hegarty, Roger S |
author_sort | Almeida, Amelia K |
collection | PubMed |
description | A dose-response experiment was designed to examine the effect of 3-nitrooxypropanol (3-NOP) on methane (CH(4)) emissions, rumen function and performance of feedlot cattle fed a tempered barley-based diet with canola oil. Twenty Angus steers of initial body weight (BW) of 356 ± 14.4 kg were allocated in a randomized complete block design. Initial BW was used as the blocking criterion. Cattle were housed in individual indoor pens for 112 d, including the first 21 d of adaptation followed by a 90-d finishing period when five different 3-NOP inclusion rates were compared: 0 mg/kg dry matter (DM; control), 50 mg/kg DM, 75 mg/kg DM, 100 mg/kg DM, and 125 mg/kg DM. Daily CH(4) production was measured on day 7 (last day of starter diet), day 14 (last day of the first intermediate diet), and day 21 (last day of the second intermediate diet) of the adaptation period and on days 28, 49, 70, 91, and 112 of the finisher period using open circuit respiration chambers. Rumen digesta samples were collected from each steer on the day prior to chamber measurement postfeeding, and prefeeding on the day after the chamber measurement, for determination of rumen volatile fatty acids (VFA), ammonium-N, protozoa enumeration, pH, and reduction potential. Dry matter intake (DMI) was recorded daily and BW weekly. Data were analyzed in a mixed model including period, 3-NOP dose and their interaction as fixed effects, and block as a random effect. Our results demonstrated both a linear and quadratic (decreasing rate of change) effect on CH(4) production (g/d) and CH(4) yield (g/kg DMI) as 3-NOP dose increased (P < 0.01). The achieved mitigation for CH(4) yield in our study ranged from approximately 65.5% up to 87.6% relative to control steers fed a finishing feedlot diet. Our results revealed that 3-NOP dose did not alter rumen fermentation parameters such as ammonium-N, VFA concentration nor VFA molar proportions. Although this experimental design was not focused on the effect of 3-NOP dose on feedlot performance, no negative effects of any 3-NOP dose were detected on animal production parameters. Ultimately, the knowledge on the CH(4) suppression pattern of 3-NOP may facilitate sustainable pathways for the feedlot industry to lower its carbon footprint. |
format | Online Article Text |
id | pubmed-10370881 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | Oxford University Press |
record_format | MEDLINE/PubMed |
spelling | pubmed-103708812023-10-17 Effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oil Almeida, Amelia K Cowley, Frances McMeniman, Joe P Karagiannis, Alex Walker, Nicola Tamassia, Luis F M McGrath, Joseph J Hegarty, Roger S J Anim Sci Ruminant Nutrition A dose-response experiment was designed to examine the effect of 3-nitrooxypropanol (3-NOP) on methane (CH(4)) emissions, rumen function and performance of feedlot cattle fed a tempered barley-based diet with canola oil. Twenty Angus steers of initial body weight (BW) of 356 ± 14.4 kg were allocated in a randomized complete block design. Initial BW was used as the blocking criterion. Cattle were housed in individual indoor pens for 112 d, including the first 21 d of adaptation followed by a 90-d finishing period when five different 3-NOP inclusion rates were compared: 0 mg/kg dry matter (DM; control), 50 mg/kg DM, 75 mg/kg DM, 100 mg/kg DM, and 125 mg/kg DM. Daily CH(4) production was measured on day 7 (last day of starter diet), day 14 (last day of the first intermediate diet), and day 21 (last day of the second intermediate diet) of the adaptation period and on days 28, 49, 70, 91, and 112 of the finisher period using open circuit respiration chambers. Rumen digesta samples were collected from each steer on the day prior to chamber measurement postfeeding, and prefeeding on the day after the chamber measurement, for determination of rumen volatile fatty acids (VFA), ammonium-N, protozoa enumeration, pH, and reduction potential. Dry matter intake (DMI) was recorded daily and BW weekly. Data were analyzed in a mixed model including period, 3-NOP dose and their interaction as fixed effects, and block as a random effect. Our results demonstrated both a linear and quadratic (decreasing rate of change) effect on CH(4) production (g/d) and CH(4) yield (g/kg DMI) as 3-NOP dose increased (P < 0.01). The achieved mitigation for CH(4) yield in our study ranged from approximately 65.5% up to 87.6% relative to control steers fed a finishing feedlot diet. Our results revealed that 3-NOP dose did not alter rumen fermentation parameters such as ammonium-N, VFA concentration nor VFA molar proportions. Although this experimental design was not focused on the effect of 3-NOP dose on feedlot performance, no negative effects of any 3-NOP dose were detected on animal production parameters. Ultimately, the knowledge on the CH(4) suppression pattern of 3-NOP may facilitate sustainable pathways for the feedlot industry to lower its carbon footprint. Oxford University Press 2023-07-10 /pmc/articles/PMC10370881/ /pubmed/37429613 http://dx.doi.org/10.1093/jas/skad237 Text en © The Author(s) 2023. Published by Oxford University Press on behalf of the American Society of Animal Science. 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 reuse, distribution, and reproduction in any medium, provided the original work is properly cited. |
spellingShingle | Ruminant Nutrition Almeida, Amelia K Cowley, Frances McMeniman, Joe P Karagiannis, Alex Walker, Nicola Tamassia, Luis F M McGrath, Joseph J Hegarty, Roger S Effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oil |
title | Effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oil |
title_full | Effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oil |
title_fullStr | Effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oil |
title_full_unstemmed | Effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oil |
title_short | Effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oil |
title_sort | effect of 3-nitrooxypropanol on enteric methane emissions of feedlot cattle fed with a tempered barley-based diet with canola oil |
topic | Ruminant Nutrition |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10370881/ https://www.ncbi.nlm.nih.gov/pubmed/37429613 http://dx.doi.org/10.1093/jas/skad237 |
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