Evaluation of Growth Functions on Japanese Quail Lines

The aim of present study was to fit the best predictive equation to describe the growth curve of different Japanese quail lines. Moreover the effect of short-term divergent selection on the growth curve parameters was investigated. The quail lines utilized in the current study were two divergently...

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Main Authors: Hamid Beiki, Abbas Pakdel, Mohammad Moradi-shahrbabak, Hossein Mehrban
Format: Article
Language:English
Published: Japan Poultry Science Association 2013-01-01
Series:The Journal of Poultry Science
Subjects:
Online Access:https://www.jstage.jst.go.jp/article/jpsa/50/1/50_0110142/_pdf/-char/en
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author Hamid Beiki
Abbas Pakdel
Mohammad Moradi-shahrbabak
Hossein Mehrban
author_facet Hamid Beiki
Abbas Pakdel
Mohammad Moradi-shahrbabak
Hossein Mehrban
author_sort Hamid Beiki
collection DOAJ
description The aim of present study was to fit the best predictive equation to describe the growth curve of different Japanese quail lines. Moreover the effect of short-term divergent selection on the growth curve parameters was investigated. The quail lines utilized in the current study were two divergently selected lines for high (HW) and low (LW) 4-wk body weight (BW) and a control line (C). Determination and adjusted determination coefficients, relative error mean and standard deviation, mean square error, Akaike’s information criteria and Schwarz Bayesian information criteria were used to evaluate the accuracy of prediction with the growth functions of Hyperbolastic (H1, H2, H3), Richards, Gompertz, Logistic and Von bertalanffy. Based on model behavior and statistical performance, the Gompertz and Logistic functions were not able to show a suitable fit for all three lines. The overall goodness of fit statistics in the HW line showed that the Richards function has the best fit to the data followed by H3, H2, H1, Von bertalanffy, Gompertz and Logistic functions, respectively. The overall results in the LW and C lines were similar to the HW line, except that Logistic function provided a better fit to the data than Gompertz. The study of growth pattern using Richards function revealed that short-term divergent selection altered the growth trajectory of selected lines through the changing of shape parameters and relative intensity of growth rates.
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spelling doaj.art-f9b67dfc437e48a4acef39ac9dda2a142023-05-31T01:19:48ZengJapan Poultry Science AssociationThe Journal of Poultry Science1346-73951349-04862013-01-01501202710.2141/jpsa.0110142jpsaEvaluation of Growth Functions on Japanese Quail LinesHamid Beiki0Abbas Pakdel1Mohammad Moradi-shahrbabak2Hossein Mehrban3Department of Animal Science, University college of Agriculture and Natural Resources, University of Tehran, IranDepartment of Animal Science, University college of Agriculture and Natural Resources, University of Tehran, IranDepartment of Animal Science, University college of Agriculture and Natural Resources, University of Tehran, IranUniversity of shahrekord, IranThe aim of present study was to fit the best predictive equation to describe the growth curve of different Japanese quail lines. Moreover the effect of short-term divergent selection on the growth curve parameters was investigated. The quail lines utilized in the current study were two divergently selected lines for high (HW) and low (LW) 4-wk body weight (BW) and a control line (C). Determination and adjusted determination coefficients, relative error mean and standard deviation, mean square error, Akaike’s information criteria and Schwarz Bayesian information criteria were used to evaluate the accuracy of prediction with the growth functions of Hyperbolastic (H1, H2, H3), Richards, Gompertz, Logistic and Von bertalanffy. Based on model behavior and statistical performance, the Gompertz and Logistic functions were not able to show a suitable fit for all three lines. The overall goodness of fit statistics in the HW line showed that the Richards function has the best fit to the data followed by H3, H2, H1, Von bertalanffy, Gompertz and Logistic functions, respectively. The overall results in the LW and C lines were similar to the HW line, except that Logistic function provided a better fit to the data than Gompertz. The study of growth pattern using Richards function revealed that short-term divergent selection altered the growth trajectory of selected lines through the changing of shape parameters and relative intensity of growth rates.https://www.jstage.jst.go.jp/article/jpsa/50/1/50_0110142/_pdf/-char/endivergent selectiongrowth curvejapanese quail
spellingShingle Hamid Beiki
Abbas Pakdel
Mohammad Moradi-shahrbabak
Hossein Mehrban
Evaluation of Growth Functions on Japanese Quail Lines
The Journal of Poultry Science
divergent selection
growth curve
japanese quail
title Evaluation of Growth Functions on Japanese Quail Lines
title_full Evaluation of Growth Functions on Japanese Quail Lines
title_fullStr Evaluation of Growth Functions on Japanese Quail Lines
title_full_unstemmed Evaluation of Growth Functions on Japanese Quail Lines
title_short Evaluation of Growth Functions on Japanese Quail Lines
title_sort evaluation of growth functions on japanese quail lines
topic divergent selection
growth curve
japanese quail
url https://www.jstage.jst.go.jp/article/jpsa/50/1/50_0110142/_pdf/-char/en
work_keys_str_mv AT hamidbeiki evaluationofgrowthfunctionsonjapanesequaillines
AT abbaspakdel evaluationofgrowthfunctionsonjapanesequaillines
AT mohammadmoradishahrbabak evaluationofgrowthfunctionsonjapanesequaillines
AT hosseinmehrban evaluationofgrowthfunctionsonjapanesequaillines