Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phase
Autor(a) principal: | |
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Data de Publicação: | 2014 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Ciência e Agrotecnologia (Online) |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000600009 |
Resumo: | Knowledge of the growth of animals is important so that zootechnical activity can be more accurate and sustainable. The objective of this study was to describe the live weight, development of liver tissue and fat body, leg growth, and cumulative food intake of bullfrogs during the fattening phase using nonlinear models. A total of 2,375 bullfrog froglets with an initial weight of 7.03 ± 0.16 g were housed in five fattening pens (12 m²). Ten samplings were performed at intervals of 14 days to obtain the variables studied. These data were used to estimate the parameters of Gompertz and logistic models as a function of time. The estimated values of weight (Wm) and food intake (FIm) at maturity and time when the growth rate is maximum (t*) were closer to expected values when the logistic model was used. The Wm values for live weight and liver, adipose and leg weights and the FIm value for food intake were 343.7, 15.7, 19.6, 96.03 and 369.3 g, respectively, with t* at 109, 98, 105, 109 and 107 days. Therefore, the logistic model was the best model to estimate the growth and food intake of bullfrogs during the fattening phase. |
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Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phaseFrog farminggrowth curvesgrowth ratelogistic modelKnowledge of the growth of animals is important so that zootechnical activity can be more accurate and sustainable. The objective of this study was to describe the live weight, development of liver tissue and fat body, leg growth, and cumulative food intake of bullfrogs during the fattening phase using nonlinear models. A total of 2,375 bullfrog froglets with an initial weight of 7.03 ± 0.16 g were housed in five fattening pens (12 m²). Ten samplings were performed at intervals of 14 days to obtain the variables studied. These data were used to estimate the parameters of Gompertz and logistic models as a function of time. The estimated values of weight (Wm) and food intake (FIm) at maturity and time when the growth rate is maximum (t*) were closer to expected values when the logistic model was used. The Wm values for live weight and liver, adipose and leg weights and the FIm value for food intake were 343.7, 15.7, 19.6, 96.03 and 369.3 g, respectively, with t* at 109, 98, 105, 109 and 107 days. Therefore, the logistic model was the best model to estimate the growth and food intake of bullfrogs during the fattening phase.Editora da UFLA2014-12-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000600009Ciência e Agrotecnologia v.38 n.6 2014reponame:Ciência e Agrotecnologia (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLA10.1590/S1413-70542014000600009info:eu-repo/semantics/openAccessPereira,Marcelo MaiaMansano,Cleber Fernando MenegassoSilva,Edney Pereira daStéfani,Marta Verardino Deeng2014-11-03T00:00:00Zoai:scielo:S1413-70542014000600009Revistahttp://www.scielo.br/cagroPUBhttps://old.scielo.br/oai/scielo-oai.php||renpaiva@dbi.ufla.br|| editora@editora.ufla.br1981-18291413-7054opendoar:2022-11-22T16:31:22.508950Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phase |
title |
Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phase |
spellingShingle |
Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phase Pereira,Marcelo Maia Frog farming growth curves growth rate logistic model |
title_short |
Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phase |
title_full |
Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phase |
title_fullStr |
Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phase |
title_full_unstemmed |
Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phase |
title_sort |
Growth in weight and of some tissues in the bullfrog: fitting nonlinear models during the fattening phase |
author |
Pereira,Marcelo Maia |
author_facet |
Pereira,Marcelo Maia Mansano,Cleber Fernando Menegasso Silva,Edney Pereira da Stéfani,Marta Verardino De |
author_role |
author |
author2 |
Mansano,Cleber Fernando Menegasso Silva,Edney Pereira da Stéfani,Marta Verardino De |
author2_role |
author author author |
dc.contributor.author.fl_str_mv |
Pereira,Marcelo Maia Mansano,Cleber Fernando Menegasso Silva,Edney Pereira da Stéfani,Marta Verardino De |
dc.subject.por.fl_str_mv |
Frog farming growth curves growth rate logistic model |
topic |
Frog farming growth curves growth rate logistic model |
description |
Knowledge of the growth of animals is important so that zootechnical activity can be more accurate and sustainable. The objective of this study was to describe the live weight, development of liver tissue and fat body, leg growth, and cumulative food intake of bullfrogs during the fattening phase using nonlinear models. A total of 2,375 bullfrog froglets with an initial weight of 7.03 ± 0.16 g were housed in five fattening pens (12 m²). Ten samplings were performed at intervals of 14 days to obtain the variables studied. These data were used to estimate the parameters of Gompertz and logistic models as a function of time. The estimated values of weight (Wm) and food intake (FIm) at maturity and time when the growth rate is maximum (t*) were closer to expected values when the logistic model was used. The Wm values for live weight and liver, adipose and leg weights and the FIm value for food intake were 343.7, 15.7, 19.6, 96.03 and 369.3 g, respectively, with t* at 109, 98, 105, 109 and 107 days. Therefore, the logistic model was the best model to estimate the growth and food intake of bullfrogs during the fattening phase. |
publishDate |
2014 |
dc.date.none.fl_str_mv |
2014-12-01 |
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=S1413-70542014000600009 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000600009 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S1413-70542014000600009 |
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 |
Editora da UFLA |
publisher.none.fl_str_mv |
Editora da UFLA |
dc.source.none.fl_str_mv |
Ciência e Agrotecnologia v.38 n.6 2014 reponame:Ciência e Agrotecnologia (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Ciência e Agrotecnologia (Online) |
collection |
Ciência e Agrotecnologia (Online) |
repository.name.fl_str_mv |
Ciência e Agrotecnologia (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
||renpaiva@dbi.ufla.br|| editora@editora.ufla.br |
_version_ |
1799874969777209344 |