2014
DOI: 10.1590/1678-6312
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Parâmetros de desempenho e carcaça de genótipos de frangos tipo caipira

Abstract:  RESUMOObjetivou-se com este trabalho avaliar as características de desempenho e de carcaça de sete genótipos de frangos tipo caipira da linhagem Redbro. Foram utilizados 840 pintos de um dia, machos, distribuídos em delineamento inteiramente ao acaso, dos seguintes genótipos: Caboclo, Carijó, Colorpak, Gigante Negro, Pesadão Vermelho, Pescoço Pelado e Tricolor. Os frangos foram alojados em 28 boxes, sendo 30 frangos por boxe, em galpão de alvenaria com acesso a um piquete de 45m², em quatro repetições. As ca… Show more

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Cited by 8 publications
(11 citation statements)
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“…Because the genotype RIR has better characteristics for egg production, they have lighter carcasses whereas broiler chickens from the genotype IG present later sexual maturity, which may have led to the lowest values of these variables since their gonads were not yet developed (ABCIG, 2016). Higher values of live weight and carcass are characteristic of broiler chicken strains with higher growth potentials, which present a higher meat production capacity (SARICA et al, 2014;VELOSO et al, 2014).…”
Section: Resultsmentioning
confidence: 99%
See 1 more Smart Citation
“…Because the genotype RIR has better characteristics for egg production, they have lighter carcasses whereas broiler chickens from the genotype IG present later sexual maturity, which may have led to the lowest values of these variables since their gonads were not yet developed (ABCIG, 2016). Higher values of live weight and carcass are characteristic of broiler chicken strains with higher growth potentials, which present a higher meat production capacity (SARICA et al, 2014;VELOSO et al, 2014).…”
Section: Resultsmentioning
confidence: 99%
“…Differences between sexes can occur due to the effect of sexual dimorphism related to the production of androgen hormones, which are responsible for muscle anabolism (DEL CASTILHO et al, 2013). The choice of genetics is essential for the economic return of poultry activity and production planning since the growth rate of bird can influence yield and carcass composition (SARICA et al, 2014;VELOSO et al, 2014).…”
Section: Introductionmentioning
confidence: 99%
“…O arraçoamento à vontade deve ser observado com critério pelos criadores de frangos caipiras, pois se este for adotado, as aves podem apresentar peso corporal excessivo. Segundo Veloso et al (2014), isso pode prejudicar a comercialização destes animais, pois o consumidor brasileiro de frango caipira demanda principalmente o frango inteiro e uma carcaça não muito grande. O arraçoamento à vontade também pode fazer com que a ave não sinta a necessidade de procurar o alimento na área de pastejo disponível, podendo não adquirir atributos importantes esperados nestes animais, como coloração mais acentuada da carcaça e firmeza e sabor característicos da carne (Mikulski et al, 2011).…”
Section: óCiounclassified
“…The birds of the others genetic lines presented intermediary RR (Table 2). These results allow us to infer that birds of Caboclo line may have been more effective at dissipating body heat because they have lower final body weight as shown by Veloso et al (2014) and thus producing less heat, facilitating thermolysis. This can be explained by the greater ease that animals with lower body mass present to dissipate heat in relation to those of greater mass.…”
Section: Resultsmentioning
confidence: 83%