Growth curves of broilers fed different nutritional relationships using the Gompertz model
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Acta Scientiarum. Animal Sciences (Online) |
Texto Completo: | https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/58287 |
Resumo: | The study aimed to evaluate performance and growth curves of broilers fed different nutritional relations. A total of 1,440 Cobb-500 male day-old chicks were assigned to eight treatments in a 2 x 2 x 2 factorial arrangement with six replicates of 30 birds each. The main factors were nutritional density (control and high), lysine source (HCl and sulfate), and calcium pidolate (presence and absence). Analyses were made for body weight gain (BWG), and feed conversion rate (FCR) at 21, and 42 days of age. The growth curves were adjusted by weighing a bird per plot every three days. Data for BWG were tested by ANOVA to evaluate the effects of treatments and their interactions at 5% significance, and the Gompertz model was adjusted by NLS. Birds fed a high nutritional density had higher BWG and lower FCR. Calcium pidolate and different sources of lysine did not influence the FCR of broilers, however a triple interaction was evidenced for BWG at 1 to 42 days of age. The day with maximum gain adjusted by Gompertz of all treatments was at the 32nd day of age and the maximum weight (A) was around 5.85 kg. |
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Acta Scientiarum. Animal Sciences (Online) |
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Growth curves of broilers fed different nutritional relationships using the Gompertz modelGrowth curves of broilers fed different nutritional relationships using the Gompertz modelcalcium pidolate; Gallus domesticus; growth rate; lysine; nonlinear models; nutritional density.calcium pidolate; Gallus domesticus; growth rate; lysine; nonlinear models; nutritional density.The study aimed to evaluate performance and growth curves of broilers fed different nutritional relations. A total of 1,440 Cobb-500 male day-old chicks were assigned to eight treatments in a 2 x 2 x 2 factorial arrangement with six replicates of 30 birds each. The main factors were nutritional density (control and high), lysine source (HCl and sulfate), and calcium pidolate (presence and absence). Analyses were made for body weight gain (BWG), and feed conversion rate (FCR) at 21, and 42 days of age. The growth curves were adjusted by weighing a bird per plot every three days. Data for BWG were tested by ANOVA to evaluate the effects of treatments and their interactions at 5% significance, and the Gompertz model was adjusted by NLS. Birds fed a high nutritional density had higher BWG and lower FCR. Calcium pidolate and different sources of lysine did not influence the FCR of broilers, however a triple interaction was evidenced for BWG at 1 to 42 days of age. The day with maximum gain adjusted by Gompertz of all treatments was at the 32nd day of age and the maximum weight (A) was around 5.85 kg.The study aimed to evaluate performance and growth curves of broilers fed different nutritional relations. A total of 1,440 Cobb-500 male day-old chicks were assigned to eight treatments in a 2 x 2 x 2 factorial arrangement with six replicates of 30 birds each. The main factors were nutritional density (control and high), lysine source (HCl and sulfate), and calcium pidolate (presence and absence). Analyses were made for body weight gain (BWG), and feed conversion rate (FCR) at 21, and 42 days of age. The growth curves were adjusted by weighing a bird per plot every three days. Data for BWG were tested by ANOVA to evaluate the effects of treatments and their interactions at 5% significance, and the Gompertz model was adjusted by NLS. Birds fed a high nutritional density had higher BWG and lower FCR. Calcium pidolate and different sources of lysine did not influence the FCR of broilers, however a triple interaction was evidenced for BWG at 1 to 42 days of age. The day with maximum gain adjusted by Gompertz of all treatments was at the 32nd day of age and the maximum weight (A) was around 5.85 kg.Editora da Universidade Estadual de Maringá2022-12-08info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/5828710.4025/actascianimsci.v45i1.58287Acta Scientiarum. Animal Sciences; Vol 45 (2023): Publicação contínua; e58287Acta Scientiarum. Animal Sciences; v. 45 (2023): Publicação contínua; e582871807-86721806-2636reponame:Acta Scientiarum. Animal Sciences (Online)instname:Universidade Estadual de Maringá (UEM)instacron:UEMenghttps://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/58287/751375155119Copyright (c) 2023 Acta Scientiarum. Animal Scienceshttp://creativecommons.org/licenses/by/4.0info:eu-repo/semantics/openAccessFreitas, Luís Filipe Villas Bôas de Bertechini, Antonio GilbertoClemente, Alisson Hélio Sampaio Fernandes, Felipe Augusto Bauth, Diego Alexsander Fernandes, Tales Jesus 2023-02-15T16:52:15Zoai:periodicos.uem.br/ojs:article/58287Revistahttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSciPUBhttp://www.periodicos.uem.br/ojs/index.php/ActaSciAnimSci/oaiactaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com1807-86721806-2636opendoar:2023-02-15T16:52:15Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM)false |
dc.title.none.fl_str_mv |
Growth curves of broilers fed different nutritional relationships using the Gompertz model Growth curves of broilers fed different nutritional relationships using the Gompertz model |
title |
Growth curves of broilers fed different nutritional relationships using the Gompertz model |
spellingShingle |
Growth curves of broilers fed different nutritional relationships using the Gompertz model Freitas, Luís Filipe Villas Bôas de calcium pidolate; Gallus domesticus; growth rate; lysine; nonlinear models; nutritional density. calcium pidolate; Gallus domesticus; growth rate; lysine; nonlinear models; nutritional density. |
title_short |
Growth curves of broilers fed different nutritional relationships using the Gompertz model |
title_full |
Growth curves of broilers fed different nutritional relationships using the Gompertz model |
title_fullStr |
Growth curves of broilers fed different nutritional relationships using the Gompertz model |
title_full_unstemmed |
Growth curves of broilers fed different nutritional relationships using the Gompertz model |
title_sort |
Growth curves of broilers fed different nutritional relationships using the Gompertz model |
author |
Freitas, Luís Filipe Villas Bôas de |
author_facet |
Freitas, Luís Filipe Villas Bôas de Bertechini, Antonio Gilberto Clemente, Alisson Hélio Sampaio Fernandes, Felipe Augusto Bauth, Diego Alexsander Fernandes, Tales Jesus |
author_role |
author |
author2 |
Bertechini, Antonio Gilberto Clemente, Alisson Hélio Sampaio Fernandes, Felipe Augusto Bauth, Diego Alexsander Fernandes, Tales Jesus |
author2_role |
author author author author author |
dc.contributor.author.fl_str_mv |
Freitas, Luís Filipe Villas Bôas de Bertechini, Antonio Gilberto Clemente, Alisson Hélio Sampaio Fernandes, Felipe Augusto Bauth, Diego Alexsander Fernandes, Tales Jesus |
dc.subject.por.fl_str_mv |
calcium pidolate; Gallus domesticus; growth rate; lysine; nonlinear models; nutritional density. calcium pidolate; Gallus domesticus; growth rate; lysine; nonlinear models; nutritional density. |
topic |
calcium pidolate; Gallus domesticus; growth rate; lysine; nonlinear models; nutritional density. calcium pidolate; Gallus domesticus; growth rate; lysine; nonlinear models; nutritional density. |
description |
The study aimed to evaluate performance and growth curves of broilers fed different nutritional relations. A total of 1,440 Cobb-500 male day-old chicks were assigned to eight treatments in a 2 x 2 x 2 factorial arrangement with six replicates of 30 birds each. The main factors were nutritional density (control and high), lysine source (HCl and sulfate), and calcium pidolate (presence and absence). Analyses were made for body weight gain (BWG), and feed conversion rate (FCR) at 21, and 42 days of age. The growth curves were adjusted by weighing a bird per plot every three days. Data for BWG were tested by ANOVA to evaluate the effects of treatments and their interactions at 5% significance, and the Gompertz model was adjusted by NLS. Birds fed a high nutritional density had higher BWG and lower FCR. Calcium pidolate and different sources of lysine did not influence the FCR of broilers, however a triple interaction was evidenced for BWG at 1 to 42 days of age. The day with maximum gain adjusted by Gompertz of all treatments was at the 32nd day of age and the maximum weight (A) was around 5.85 kg. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-12-08 |
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://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/58287 10.4025/actascianimsci.v45i1.58287 |
url |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/58287 |
identifier_str_mv |
10.4025/actascianimsci.v45i1.58287 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
https://periodicos.uem.br/ojs/index.php/ActaSciAnimSci/article/view/58287/751375155119 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2023 Acta Scientiarum. Animal Sciences http://creativecommons.org/licenses/by/4.0 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2023 Acta Scientiarum. Animal Sciences http://creativecommons.org/licenses/by/4.0 |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Editora da Universidade Estadual de Maringá |
publisher.none.fl_str_mv |
Editora da Universidade Estadual de Maringá |
dc.source.none.fl_str_mv |
Acta Scientiarum. Animal Sciences; Vol 45 (2023): Publicação contínua; e58287 Acta Scientiarum. Animal Sciences; v. 45 (2023): Publicação contínua; e58287 1807-8672 1806-2636 reponame:Acta Scientiarum. Animal Sciences (Online) instname:Universidade Estadual de Maringá (UEM) instacron:UEM |
instname_str |
Universidade Estadual de Maringá (UEM) |
instacron_str |
UEM |
institution |
UEM |
reponame_str |
Acta Scientiarum. Animal Sciences (Online) |
collection |
Acta Scientiarum. Animal Sciences (Online) |
repository.name.fl_str_mv |
Acta Scientiarum. Animal Sciences (Online) - Universidade Estadual de Maringá (UEM) |
repository.mail.fl_str_mv |
actaanim@uem.br||actaanim@uem.br|| rev.acta@gmail.com |
_version_ |
1799315364186685440 |