Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters?
Autor(a) principal: | |
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Data de Publicação: | 2023 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Bioscience journal (Online) |
Texto Completo: | https://seer.ufu.br/index.php/biosciencejournal/article/view/64329 |
Resumo: | In intensive beef cattle production systems, silage, corn, soy bean, and their coproducts are commonly used as feed. However, these ingredients are highly susceptible to contamination by fungi and mycotoxins, which may lead to immunological challenges and reduce animal production. The aim of the present study was to evaluate the effects of mycotoxin contamination of diet on intake, digestibility, and performance of heifers. Twenty non-pregnant (Nellore) heifers (age, >18 months; initial body weight, 348±30 kg) were used and randomly distributed in two treatments: (1) control (non-contaminated diet) and (2) zearalenone-contaminated diet (300 ppb). The diet comprised 70% corn silage and 30% concentrate. Individual dry matter intake and digestibility were estimated using external and internal markers. Heifer body weight was evaluated every week without fasting to calculate performance. The experimental design was completely randomized. Each animal was considered one experimental unit. Assumptions were tested for variance analyses (error normality, independence of errors, and homogeneity of variances) (p<0.05). There were no differences in dry matter intake (p=0.96) and digestibility (p=0.62). Performance (kg/day) did not vary as a function of zearalenone ingestion (p=0.68). Therefore, contamination of diet with 300 ppb zearalenone did not affect the intake, digestibility, and performance of feedlot-finished heifers. |
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Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters?Animal NutritionBeef CattleBos indicusContaminated FeedZearalenone. Agricultural SciencesIn intensive beef cattle production systems, silage, corn, soy bean, and their coproducts are commonly used as feed. However, these ingredients are highly susceptible to contamination by fungi and mycotoxins, which may lead to immunological challenges and reduce animal production. The aim of the present study was to evaluate the effects of mycotoxin contamination of diet on intake, digestibility, and performance of heifers. Twenty non-pregnant (Nellore) heifers (age, >18 months; initial body weight, 348±30 kg) were used and randomly distributed in two treatments: (1) control (non-contaminated diet) and (2) zearalenone-contaminated diet (300 ppb). The diet comprised 70% corn silage and 30% concentrate. Individual dry matter intake and digestibility were estimated using external and internal markers. Heifer body weight was evaluated every week without fasting to calculate performance. The experimental design was completely randomized. Each animal was considered one experimental unit. Assumptions were tested for variance analyses (error normality, independence of errors, and homogeneity of variances) (p<0.05). There were no differences in dry matter intake (p=0.96) and digestibility (p=0.62). Performance (kg/day) did not vary as a function of zearalenone ingestion (p=0.68). Therefore, contamination of diet with 300 ppb zearalenone did not affect the intake, digestibility, and performance of feedlot-finished heifers.Nos sistemas intensivos de produção de gado de corte, silagems, milho, soja e outros coprodutos são tradicionalmente utilizados como alimentos para animais. Entretante, estes ingredientes são altamente susceptíveis a contaminação por fungos e micotoxinas, com potencial impacto negativo no sistema imunológico do animal e consequente redução de desempenho. O objetivo do presente estudo foi avaliar os efeitos da ingestão de dieta contaminada por micotoxina para novilhas confinadas sobre o consumo, digestibilidade e ganho de peso. Vinte novilhas (Nelore, >18 meses; peso corporal inicial 348±30 kg) foram distribuídas aleatoriamente em dois tratamentos: (1) controle (dieta não contaminada) e (2) dieta contaminada com Zearalenona (300 ppb). A dieta era composta por 70% de silagem de milho e 30% de concentrado. O consumo individual de matéria seca e digestibilidade foram estimados usando marcadores interno e externo. O peso corporal das novilhas foi mensurado semanalmente sem jejum, para cálculo do ganho de peso. Cada animal foi considerado uma unidade experimental. Foram testadas as pressuposições para análise de variância (normalidade dos erros, independência dos erros e homogeneidade das variâncias), e então, esta foi realizada (p<0.05). Não foram constatadas diferenças no consumo de matéria seca (p=0.96) e digestibilidade (p=0.62). O ganho de peso (kg/dia) não foi influenciado pela ingestão de Zearalenona (p=0.68). Assim, a ingestão de dieta contaminada com 300 ppb de Zearalenone não influenciou o consumo, digestibilidade e ganho de peso no confinamento de novilhas de corte.Universidade Federal de Uberlândia2023-03-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://seer.ufu.br/index.php/biosciencejournal/article/view/6432910.14393/BJ-v39n0a2023-64329Bioscience Journal ; Vol. 39 (2023): Continuous Publication; e39048Bioscience Journal ; v. 39 (2023): Continuous Publication; e390481981-3163reponame:Bioscience journal (Online)instname:Universidade Federal de Uberlândia (UFU)instacron:UFUenghttps://seer.ufu.br/index.php/biosciencejournal/article/view/64329/35885Brazil; Contemporary Copyright (c) 2023 Danielle de Oliveira Pião, Marco Roberto Bourg de Mello, Marina Mortati Dias Barbero, Alex Lopes da Silva, André Morais Moura, Rondineli Pavezzi Barberohttps://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessPião, Danielle de OliveiraMello, Marco Roberto Bourg deBarbero, Marina Mortati DiasSilva, Alex Lopes daMoura, André MoraisBarbero, Rondineli Pavezzi2024-01-31T19:16:18Zoai:ojs.www.seer.ufu.br:article/64329Revistahttps://seer.ufu.br/index.php/biosciencejournalPUBhttps://seer.ufu.br/index.php/biosciencejournal/oaibiosciencej@ufu.br||1981-31631516-3725opendoar:2024-01-31T19:16:18Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU)false |
dc.title.none.fl_str_mv |
Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters? |
title |
Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters? |
spellingShingle |
Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters? Pião, Danielle de Oliveira Animal Nutrition Beef Cattle Bos indicus Contaminated Feed Zearalenone. Agricultural Sciences |
title_short |
Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters? |
title_full |
Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters? |
title_fullStr |
Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters? |
title_full_unstemmed |
Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters? |
title_sort |
Does the mycotoxin ingestion by beef heifers on feedlot change the productive parameters? |
author |
Pião, Danielle de Oliveira |
author_facet |
Pião, Danielle de Oliveira Mello, Marco Roberto Bourg de Barbero, Marina Mortati Dias Silva, Alex Lopes da Moura, André Morais Barbero, Rondineli Pavezzi |
author_role |
author |
author2 |
Mello, Marco Roberto Bourg de Barbero, Marina Mortati Dias Silva, Alex Lopes da Moura, André Morais Barbero, Rondineli Pavezzi |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Pião, Danielle de Oliveira Mello, Marco Roberto Bourg de Barbero, Marina Mortati Dias Silva, Alex Lopes da Moura, André Morais Barbero, Rondineli Pavezzi |
dc.subject.por.fl_str_mv |
Animal Nutrition Beef Cattle Bos indicus Contaminated Feed Zearalenone. Agricultural Sciences |
topic |
Animal Nutrition Beef Cattle Bos indicus Contaminated Feed Zearalenone. Agricultural Sciences |
description |
In intensive beef cattle production systems, silage, corn, soy bean, and their coproducts are commonly used as feed. However, these ingredients are highly susceptible to contamination by fungi and mycotoxins, which may lead to immunological challenges and reduce animal production. The aim of the present study was to evaluate the effects of mycotoxin contamination of diet on intake, digestibility, and performance of heifers. Twenty non-pregnant (Nellore) heifers (age, >18 months; initial body weight, 348±30 kg) were used and randomly distributed in two treatments: (1) control (non-contaminated diet) and (2) zearalenone-contaminated diet (300 ppb). The diet comprised 70% corn silage and 30% concentrate. Individual dry matter intake and digestibility were estimated using external and internal markers. Heifer body weight was evaluated every week without fasting to calculate performance. The experimental design was completely randomized. Each animal was considered one experimental unit. Assumptions were tested for variance analyses (error normality, independence of errors, and homogeneity of variances) (p<0.05). There were no differences in dry matter intake (p=0.96) and digestibility (p=0.62). Performance (kg/day) did not vary as a function of zearalenone ingestion (p=0.68). Therefore, contamination of diet with 300 ppb zearalenone did not affect the intake, digestibility, and performance of feedlot-finished heifers. |
publishDate |
2023 |
dc.date.none.fl_str_mv |
2023-03-31 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/64329 10.14393/BJ-v39n0a2023-64329 |
url |
https://seer.ufu.br/index.php/biosciencejournal/article/view/64329 |
identifier_str_mv |
10.14393/BJ-v39n0a2023-64329 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://seer.ufu.br/index.php/biosciencejournal/article/view/64329/35885 |
dc.rights.driver.fl_str_mv |
https://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
https://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.coverage.none.fl_str_mv |
Brazil; Contemporary |
dc.publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
publisher.none.fl_str_mv |
Universidade Federal de Uberlândia |
dc.source.none.fl_str_mv |
Bioscience Journal ; Vol. 39 (2023): Continuous Publication; e39048 Bioscience Journal ; v. 39 (2023): Continuous Publication; e39048 1981-3163 reponame:Bioscience journal (Online) instname:Universidade Federal de Uberlândia (UFU) instacron:UFU |
instname_str |
Universidade Federal de Uberlândia (UFU) |
instacron_str |
UFU |
institution |
UFU |
reponame_str |
Bioscience journal (Online) |
collection |
Bioscience journal (Online) |
repository.name.fl_str_mv |
Bioscience journal (Online) - Universidade Federal de Uberlândia (UFU) |
repository.mail.fl_str_mv |
biosciencej@ufu.br|| |
_version_ |
1797069065220521984 |