Powered by OpenAIRE graph
Found an issue? Give us feedback
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/ Semina: Ciências Agr...arrow_drop_down
image/svg+xml art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos Open Access logo, converted into svg, designed by PLoS. This version with transparent background. http://commons.wikimedia.org/wiki/File:Open_Access_logo_PLoS_white.svg art designer at PLoS, modified by Wikipedia users Nina, Beao, JakobVoss, and AnonMoos http://www.plos.org/
Semina: Ciências Agrárias
Article . 2016
Data sources: DOAJ
addClaim

Curvas de crescimento de fêmeas da raça Caracu

Authors: Raphael Patrick Moreira; Maria Eugênia Zerlotti Mercadante; Victor Breno Pedrosa; Joslaine Noely dos Santos Gonçalves Cyrillo; Wignez Henrique;

Curvas de crescimento de fêmeas da raça Caracu

Abstract

O objetivo do estudo foi analisar os modelos não-lineares que melhores se ajustam ao crescimento de fêmeas da raça Caracu. O experimento foi conduzido no Instituto de Zootecnia, Centro APTA Bovinos de Corte, Sertãozinho, SP. Dados de peso ao nascimento até os 63 meses de idade de 500 fêmeas da raça Caracu foram utilizados. A media de peso ao nascer (PN), peso a desmama (P7), peso aos 26 meses (P26) e peso aos 63 meses (P63) foram, respectivamente, de 32 kg, 198 kg, 354 kg e 488 kg, fornecendo um ganho médio diário (GMD) de 0,241 kg/dia. Os modelos não-lineares utilizados foram: Brody, Von Bentarlanffy, Logístico e Gompertz. Todos os modelos descreveram adequadamente a curva de crescimento destes animais, porém de acordo com o quadrado médio do resíduo e coeficiente de determinação, adotados para escolha do modelo mais apropriado, Brody mostrou o melhor ajuste. Todos os modelos apresentaram alta e negativa correlação entre os parâmetros A e k, indicando que animais mais precoces possuem menor probabilidade de atingir pesos mais elevados aos 63 meses de idade. O efeito de ano de nascimento afetou significativamente (P < 0,01) os parâmetros A e k, sugerindo que a seleção dos animais com base em características de crescimento favoreceu o aumento do peso adulto e a precocidade, com o passar das gerações.

Keywords

Precocidade., Agriculture (General), Modelos não lineares, Desenvolvimento ponderal, S1-972

  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    0
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Average
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Average
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Average
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold