| Registro completo |
| Provedor de dados: |
96
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| País: |
Brazil
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| Título: |
Traditional and alternative nonlinear models for estimating the growth of Morada Nova sheep
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| Autores: |
Souza,Laaina de Andrade
Carneiro,Paulo Luiz Souza
Malhado,Carlos Henrique Mendes
Silva,Fabyano Fonseca e
Silveira,Fernanda Gomes da
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| Data: |
2013-09-01
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| Ano: |
2013
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| Palavras-chave: |
Cluster analysis
Growth curve
Naturalized breed
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| Resumo: |
In the present study, alternative and traditional nonlinear models to describe growth curves of Morada Nova sheep reared in the state of Bahia, Brazil, were applied. The nonlinear models were: Schnute, Mitscherlich, Gompertz, Logistic, Meloun I Meloun II, III Meloun, Gamito and Meloun IV. The model adjustment was evaluated by using: Adjusted Coefficient of Determination (R²aj), Akaike Information Criterion (AIC), Bayesian Information Criterion (BIC), Mean Squared Error of Prediction (MEP) and Coefficient of Determination of Prediction (R²p). The selection of the best model was based on cluster analysis, using the evaluators as variables. Six out of the nine tested models converged, while Meloun I and Meloun IV were equally effective in explaining animal growth, without significant influence of sex or type of parturition over the curve parameters. The models Meloun I and IV have the best adjustment and reveal a remarkable reduction of weight gain after 150 days of age, which indicates special attention should be given to feeding at this stage.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982013000900007
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| Editor: |
Sociedade Brasileira de Zootecnia
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| Relação: |
10.1590/S1516-35982013000900007
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| Formato: |
text/html
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| Fonte: |
Revista Brasileira de Zootecnia v.42 n.9 2013
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| Direitos: |
info:eu-repo/semantics/openAccess
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