Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint corn
Autor(a) principal: | |
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Data de Publicação: | 2021 |
Outros Autores: | , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Scientia Agrícola (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000600401 |
Resumo: | ABSTRACT: Narasin is an antibacterial agent that may change rumen fermentation. Two experiments were proposed to evaluate the efficiency of narasin inclusion for lambs fed a diet containing high amounts of ground flint corn. Thirty rumen-cannulated wethers were used to evaluate nutrient digestibility, nitrogen balance, and rumen metabolism (Exp. 1); and forty-five lambs were used to evaluate performance (Exp. 2) of animals fed with narasin for high flint corn diets. The experimental diets were: control or basal diet without additives (C); 25 mg of monensin kg−1 of dry matter (DM) (M); and inclusion of 5 (N5), 10 (N10), and 15 (N15) mg of narasin kg−1 of DM. The statistical analyses were performed using the MIXED procedure of SAS. Monensin increased DM digestibility compared to C ( p = 0.01) and increasing doses of narasin linearly increased DM digestibility ( p < 0.01). There was a quadratic effect ( p = 0.10) for molar proportion of acetate peaking at N15. Monensin inclusion increased ( p = 0.07) propionate compared to C; however, it did not differ from narasin. The increasing levels of narasin linearly decreased the total volatile fatty acids concentration in the rumen ( p = 0.02). Monensin and C showed a similar performance. The increasing levels of narasin linearly increased ( p ≤ 0.04) average daily gain and feed efficiency. Monensin and narasin changed rumen fermentation and improved overall nutrient digestibility. However, lambs that received narasin showed improved performance when compared with animals that received M. |
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Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint cornaverage daily gainfeed efficiencypropionaterumen metabolismsheepABSTRACT: Narasin is an antibacterial agent that may change rumen fermentation. Two experiments were proposed to evaluate the efficiency of narasin inclusion for lambs fed a diet containing high amounts of ground flint corn. Thirty rumen-cannulated wethers were used to evaluate nutrient digestibility, nitrogen balance, and rumen metabolism (Exp. 1); and forty-five lambs were used to evaluate performance (Exp. 2) of animals fed with narasin for high flint corn diets. The experimental diets were: control or basal diet without additives (C); 25 mg of monensin kg−1 of dry matter (DM) (M); and inclusion of 5 (N5), 10 (N10), and 15 (N15) mg of narasin kg−1 of DM. The statistical analyses were performed using the MIXED procedure of SAS. Monensin increased DM digestibility compared to C ( p = 0.01) and increasing doses of narasin linearly increased DM digestibility ( p < 0.01). There was a quadratic effect ( p = 0.10) for molar proportion of acetate peaking at N15. Monensin inclusion increased ( p = 0.07) propionate compared to C; however, it did not differ from narasin. The increasing levels of narasin linearly decreased the total volatile fatty acids concentration in the rumen ( p = 0.02). Monensin and C showed a similar performance. The increasing levels of narasin linearly increased ( p ≤ 0.04) average daily gain and feed efficiency. Monensin and narasin changed rumen fermentation and improved overall nutrient digestibility. However, lambs that received narasin showed improved performance when compared with animals that received M.Escola Superior de Agricultura "Luiz de Queiroz"2021-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000600401Scientia Agricola v.78 n.6 2021reponame:Scientia Agrícola (Online)instname:Universidade de São Paulo (USP)instacron:USP10.1590/1678-992x-2020-0010info:eu-repo/semantics/openAccessPolizel,Daniel MontanherMarques,Samuel SutilWestphalen,Mariana FontanaGouvea,Vinícius NunesFerraz Júnior,Marcos Vinícius de CastroMiszura,Alexandre ArantesBarroso,José Paulo RomanLimede,Arnaldo CintraFerreira,Evandro MaiaPires,Alexandre Vazeng2020-10-13T00:00:00Zoai:scielo:S0103-90162021000600401Revistahttp://revistas.usp.br/sa/indexPUBhttps://old.scielo.br/oai/scielo-oai.phpscientia@usp.br||alleoni@usp.br1678-992X0103-9016opendoar:2020-10-13T00:00Scientia Agrícola (Online) - Universidade de São Paulo (USP)false |
dc.title.none.fl_str_mv |
Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint corn |
title |
Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint corn |
spellingShingle |
Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint corn Polizel,Daniel Montanher average daily gain feed efficiency propionate rumen metabolism sheep |
title_short |
Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint corn |
title_full |
Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint corn |
title_fullStr |
Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint corn |
title_full_unstemmed |
Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint corn |
title_sort |
Narasin inclusion for feedlot lambs fed a diet containing high amounts of ground flint corn |
author |
Polizel,Daniel Montanher |
author_facet |
Polizel,Daniel Montanher Marques,Samuel Sutil Westphalen,Mariana Fontana Gouvea,Vinícius Nunes Ferraz Júnior,Marcos Vinícius de Castro Miszura,Alexandre Arantes Barroso,José Paulo Roman Limede,Arnaldo Cintra Ferreira,Evandro Maia Pires,Alexandre Vaz |
author_role |
author |
author2 |
Marques,Samuel Sutil Westphalen,Mariana Fontana Gouvea,Vinícius Nunes Ferraz Júnior,Marcos Vinícius de Castro Miszura,Alexandre Arantes Barroso,José Paulo Roman Limede,Arnaldo Cintra Ferreira,Evandro Maia Pires,Alexandre Vaz |
author2_role |
author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Polizel,Daniel Montanher Marques,Samuel Sutil Westphalen,Mariana Fontana Gouvea,Vinícius Nunes Ferraz Júnior,Marcos Vinícius de Castro Miszura,Alexandre Arantes Barroso,José Paulo Roman Limede,Arnaldo Cintra Ferreira,Evandro Maia Pires,Alexandre Vaz |
dc.subject.por.fl_str_mv |
average daily gain feed efficiency propionate rumen metabolism sheep |
topic |
average daily gain feed efficiency propionate rumen metabolism sheep |
description |
ABSTRACT: Narasin is an antibacterial agent that may change rumen fermentation. Two experiments were proposed to evaluate the efficiency of narasin inclusion for lambs fed a diet containing high amounts of ground flint corn. Thirty rumen-cannulated wethers were used to evaluate nutrient digestibility, nitrogen balance, and rumen metabolism (Exp. 1); and forty-five lambs were used to evaluate performance (Exp. 2) of animals fed with narasin for high flint corn diets. The experimental diets were: control or basal diet without additives (C); 25 mg of monensin kg−1 of dry matter (DM) (M); and inclusion of 5 (N5), 10 (N10), and 15 (N15) mg of narasin kg−1 of DM. The statistical analyses were performed using the MIXED procedure of SAS. Monensin increased DM digestibility compared to C ( p = 0.01) and increasing doses of narasin linearly increased DM digestibility ( p < 0.01). There was a quadratic effect ( p = 0.10) for molar proportion of acetate peaking at N15. Monensin inclusion increased ( p = 0.07) propionate compared to C; however, it did not differ from narasin. The increasing levels of narasin linearly decreased the total volatile fatty acids concentration in the rumen ( p = 0.02). Monensin and C showed a similar performance. The increasing levels of narasin linearly increased ( p ≤ 0.04) average daily gain and feed efficiency. Monensin and narasin changed rumen fermentation and improved overall nutrient digestibility. However, lambs that received narasin showed improved performance when compared with animals that received M. |
publishDate |
2021 |
dc.date.none.fl_str_mv |
2021-01-01 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000600401 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162021000600401 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/1678-992x-2020-0010 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
text/html |
dc.publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
publisher.none.fl_str_mv |
Escola Superior de Agricultura "Luiz de Queiroz" |
dc.source.none.fl_str_mv |
Scientia Agricola v.78 n.6 2021 reponame:Scientia Agrícola (Online) instname:Universidade de São Paulo (USP) instacron:USP |
instname_str |
Universidade de São Paulo (USP) |
instacron_str |
USP |
institution |
USP |
reponame_str |
Scientia Agrícola (Online) |
collection |
Scientia Agrícola (Online) |
repository.name.fl_str_mv |
Scientia Agrícola (Online) - Universidade de São Paulo (USP) |
repository.mail.fl_str_mv |
scientia@usp.br||alleoni@usp.br |
_version_ |
1748936465691181056 |