Desempenho e rendimento de carcaça de quatro grupos genéticos de codornas para produção de carne

Móri, Cleusa; Garcia, Edivaldo Antônio; Pavan, Ana Claudia Lemes; Piccinin, Adriana; Pizzolante, Carla Cachoni

doi:10.1590/s1516-35982005000300019

Cited by 32 publications

(19 citation statements)

References 15 publications

(32 reference statements)

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“…Little is known about the productive potential of quails in Brazil and production costs, making its meat price high and uncompetitive in the retail market compared with chicken meat (Móri et al, 2005a). The lack of suitable genetic material and insufficient data on the performance and nutritional requirements make meat quail production poorly organized and empirical (Móri et al, 2005a).…”

Section: Introductionmentioning

confidence: 99%

Influence of european quail breeders age on egg quality, incubation, fertility and progeny performance

Santos

Murakami

Oliveira

et al. 2015

Rev. Bras. Cienc. Avic.

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The influence of age (85, 140, and 270 days) of European quails breeders on the egg quality and hatching, fertility and progeny performance was evaluated. The experimental design was completely randomized in a 3x3 factorial arrangement (females' age x males' age), with ten replicates and six birds per experimental unit (four females and two males). Egg production and quality were determined during 3 periods of 14 days and incubation parameters were evaluated in eggs obtained in five consecutive days. The live performance of the progenies was analyzed until 35 days. There was no effect of male age or any interaction between the age of males and females for the evaluated variable. The female's age influenced egg production, egg weight and chick weight, with better results obtained for 140-d-old breeders. The age of females reduced the hatchability, increased the late mortality in incubated eggs, and had no effect on fertility, total embryo mortality or eggshell structure, when analyzed by electron microscopy. The number of sperm trapped in the outer perivitelline layer (sptz/mm²) was determined in 10 fertile eggs per experimental unit. Young females fertilized by young males (80 days) had reduced sptz/mm². Progeny live performance was not affected by breeder's age. Breeders with 270 days retain fertility; however, their egg production, weight and hatchability of fertilized eggs is reduced. In conclusion, European quail breeders with 140 days of age have better egg quality, hatching and breeding results.

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Section: Introductionmentioning

confidence: 99%

Influence of european quail breeders age on egg quality, incubation, fertility and progeny performance

Santos

Murakami

Oliveira

et al. 2015

Rev. Bras. Cienc. Avic.

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“…Nesse contexto, a produção de codornas para carne tem se tornado uma opção para os avicultores (Móri et al, 2005). Segundo Murakami (2007), a carne de codorna apresenta-se como um produto de alta qualidade, pois possui na sua composição ótimo perfil aminoacídico e teor de ácidos graxos, principalmente ômega 6, e é rica em minerais, além de possuir características sensórias como odor, sabor e maciez de alta aceitação pela população.…”

Section: Introductionunclassified

“…Entretanto, com a recente expansão do setor, pode ser observado o aumento do interesse de produtores pela coturnicultura de corte. Contudo, a falta de material genético adequado disponível no mercado, a precariedade de dados sobre o desempenho e sobre as exigências nutricionais fazem com que criadores explorem a produção de carne de forma pouco organizada e empírica (Móri et al, 2005).…”

Section: Introductionunclassified

Proteína bruta e energia metabolizável para codornas de corte de um a 14 dias de idade

Reis

Barreto

Torres

et al. 2014

Arq. Bras. Med. Vet. Zootec.

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RESUMOCom o objetivo de avaliar diferentes níveis de proteína bruta e de energia metabolizável para codornas de corte de um a 14 dias de idade, foi realizado um estudo utilizando 840 codornas de corte, mistas. As aves foram distribuídas em arranjo fatorial (2x5) constituído por 10 tratamentos (dois níveis de energia metabolizável  2800 e 3000kcal/kg e cinco níveis de proteína bruta  22,0; 24,0; 26,0; 28,0 e 30,0%), sete repetições com 12 aves cada. Foram avaliados os seguintes parâmetros: consumo de ração, ganho em peso aos sete e 14 dias de idade, conversão alimentar aos 14 dias e viabilidade. Verificou-se que codornas alimentadas com dietas com o nível energético mais baixo, 2800kcal/kg, apresentaram maior consumo. As aves que consumiram ração com menor nível de energia apresentaram maior peso aos sete dias de idade independentemente do nível de proteína bruta utilizado. O peso aos 14 dias de idade apresentou resposta quadrática com o acréscimo de proteína bruta na ração, sendo que dietas contendo 28,86% de PB proporcionaram melhor ganho independentemente do nível de energia utilizado. A conversão alimentar apresentou melhores resultados com o aumento do nível de proteína bruta da ração, independentemente do nível de energia metabolizável utilizado. Não foram observados efeitos significativos dos níveis de proteína e energia ou de sua interação sobre a viabilidade das aves. Rações contendo 30,0% de proteína bruta e 2800 ou 3000kcal/kg de energia metabolizável proporcionam satisfatórios resultados de desempenho para codornas de corte de um a 14 dias de idade. Palavras-chave: Coturnix coturnix coturnix, crescimento, desempenho ABSTRACTAiming to evaluate the effect of different levels of crude protein and metabolizable energy for quails from 1 to 14 days of age, a study was conducted using 840 quails, mixed. The birds were distributed in a factorial arrangement (2x5) consisting of 10 treatments (two levels of metabolizable energy -2,800 and 3,000kcal/kg and 5 levels of crude protein -22.0, 24.0, 26.0, 28.0 and 30.0%)

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“…In order to improve Brazilian genetics, wellfounded breeding programs based on precise and accurate parameters are needed (DIONELLO et al, 2008). In this sense, little is known about the productive potential of meat-type and laying quail in Brazil (MÓRI et al, 2005), one of the initial steps to be taken to improve productive indices and minimize the lack of uniformity of lots, one of the main rearing problems (GRIESER et al, 2015a). Japanese quail (Coturnix coturnix japonica) reaches an adult weight between 120 and 175 g, depending on the strain, and their main purpose is the production of eggs for consumption.…”

Section: Introductionmentioning

confidence: 99%

Growth curves in meat-type and laying quail: a Bayesian perspective

Rossi

Grieser

Conselvan

et al. 2017

SCA

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The aim of this study was to assess the goodness of fit for nonlinear models, using the best model to describe body growth curves, comparing the parameters obtained for gender and one meat-type (Coturnix coturnix coturnix) and two laying (Coturnix coturnix japonica) quail strains, as well as nesting via MCMC (Markov chain Monte Carlo processes) methods under a Bayesian approach. A total of 1,350 one-day-old mixed quail were used: 400 of meat-type, 450 of yellow laying, and 500 of red laying strains distributed in a completely randomized design with three treatments (each treatment corresponded to one strain) and five replications. The experimental period consisted of 1 to 42 days of age. At 21 days of age, quail sexing was performed by means of sexual dimorphism, being individually identified at one day of age with numbered rings, allowing determining growth curves by gender. Birds were reared in a conventional system, fed ad libitum with diets formulated to meet nutritional requirements. Body weight was determined weekly and assessed using nonlinear models: Logistic, Brody, Von Bertalanffy, and Gompertz. DIC (Deviance Information Criterion) criterion was used to select the best nonlinear model, i.e. the lower the DIC value is, the better the model goodness of fit to the data. Gompertz model was better adjusted to the data regardless the gender or strain. Meat-type quail had the highest asymptotic weights and the highest age at which growth rate was maximum, followed by red and yellow strains. All nestings presented significant differences (p < 0.05) between gender for contrasted parameters. Meat-type, yellow, and red females presented values significantly (p < 0.05) higher for asymptotic weight (370, 203, and 215 g, respectively) when compared to males (274, 131, and 143 g, respectively), which were earlier in body growth. Key words: Deviance information criterion. Gompertz equation. Nonlinear models. Body weight. ResumoO objetivo deste trabalho foi avaliar a qualidade de ajuste dos modelos não lineares aos dados, utilizando o melhor modelo para descrever as curvas de crescimento corporal, comparando os parâmetros obtidos para gênero e uma linhagem de codornas de corte (Coturnix coturnix coturnix) e duas de postura (Coturnix coturnix japonica), bem como o aninhamento, via método MCMC (Cadeias de Markov em processos de Monte Carlo), sob o enfoque Bayesiano. Foram utilizadas 1.350 codornas mistas, com um dia de idade, sendo: 400 da linhagem de corte, 450 de postura amarela e 500 de postura vermelha, distribuídas por um delineamento inteiramente casualizado, com três tratamentos (cada tratamento corresponde a uma linhagem) e cinco repetições. O período experimental foi de 1 a 42 dias de idade. Aos 21 dias de idade foi realizada a sexagem por dimorfismo sexual, sendo que elas foram identificadas individualmente com um dia com anilhas numeradas, possibilitando a determinação das curvas de crescimento por gênero. As aves foram criadas em um sistema convencional, alimentadas ad libitum com rações formuladas p...

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Desempenho e rendimento de carcaça de quatro grupos genéticos de codornas para produção de carne

Cited by 32 publications

References 15 publications

Influence of european quail breeders age on egg quality, incubation, fertility and progeny performance

Influence of european quail breeders age on egg quality, incubation, fertility and progeny performance

Proteína bruta e energia metabolizável para codornas de corte de um a 14 dias de idade

Growth curves in meat-type and laying quail: a Bayesian perspective

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