Comparison of growth curve parameters of organs and body components in meat- (<i>Coturnix coturnix coturnix)</i>and laying-type (<i>Coturnix coturnix japonica</i>) quail show interactions between gender and genotype

Grieser, Daiane de Oliveira; Marcato, Simara Márcia; Furlan, Antônio Cláudio; Zancanela, Vittor; Ton, Ana Paula Silva; Batista, Eliany; Perine, Taynara Prestes; Pozza, Paulo César; Sakomura, Nilva Kazue

doi:10.1080/00071668.2014.988602

“…In this sense, the obtained data could corroborate with the improvement of productive indices of this activity, reducing production costs of eggs and meat of quail (GRIESER et al, 2015b). In addition, these models could allow predicting the nutritional requirements of birds, the best slaughter age, and production efficiency indices, providing data to develop a software for use by companies and producers to enhance understanding in regarding bird development, improved management, ambience of facilities, and nutrition to support the maximum expression of their genetic potential (MARCATO et al, 2010).…”

supporting

confidence: 68%

“…DIC statistics of the above-mentioned models indicated that both Gompertz and Richards's functions presented a good fit to the data, being superior to the Logistic model considering the goodness of fit. Gompertz function has also been considered by many authors in the literature as the best option to describe bird growth, relating weight and age (MARCATO et al, 2010;MAZUCHELI et al, 2011;SANTOS, 2014;GRIESER et al, 2015b;MOTA et al, 2015;FINCO et al, 2016;ROCHA-SILVA et al, 2016).…”

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

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

Rossi

¹

,

Grieser

²

,

Conselvan

³

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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“…The Gompertz model was also the best in quality adjustment for meat-type (Drumond et al, 2013;Grieser et al, 2015, andMota et al, 2015) and Japanese laying-type quail (Narinc, 2010;Grieser et al, 2015;Finco et al, 2016). In this work, Gompertz also showed a good quality adjustment, standing out from the other models for the description of the organs weight and carcass parts of meat-type and laying-type quail strain.…”

Section: Comparison Of the Quality Adjusting Of Nonlinear Models For mentioning

confidence: 70%

Comparison of the Quality Adjusting of Nonlinear Models for Organs, Carcass and Body Components in Meat-Type (Coturnix Coturnix Coturnix) and Laying-Type (Coturnix Coturnix Japonica) Quail

Grieser

¹

,

Furlan

²

,

Ribeiro

³

et al. 2017

Rev. Bras. Cienc. Avic.

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The objective of this study was to evaluate the adjustment quality of nonlinear models to data organs growth, carcass and body components of meat-type (Coturnix coturnix coturnix) and japanese laying-type (Coturnix coturnix japonica) quail. A total of 1350 quails from one to 42 d old were distributed in a completely randomized design, with five replicates each. To determine the organs growth (gut, heart, liver and gizzard), carcass and body components (wing, thigh and drumstick, back and breast), two quails per repetition were slaughtered weekly. The data were evaluated in function of different nonlinear models (Logistical, Brody, Richards, Von Bertalanffy and Gompertz). All models studied adjusted the data, differing in adjustment quality. Brody model showed the best description of gut length to all treatments. For the data gizzard weight, heart, liver and gut, the models that best adjusted, presenting smaller residual mean square and numbers iterations were Gompertz and Logistical. The Gompertz, Logistic and Von Bertalanffy models were the most adequate to describe the thigh and drumstick growth, back and breast, and Gompertz models and Logistic to describe the wing growth and carcass, showing lesser number of iterations to achieve the convergence of date, as well as low residual mean square and squares sums of the regression residuals. The Gompertz model was the most appropriate to describe the organs growth and body components in meat-and laying-type quail when evaluated in growth phase.

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“…curves, which implies changes in their nutritional requirements. In general, significant differences are observed when data are analyzed separately by gender (MARCATO et al, 2010), making the study of body development by genetic groups and gender relevant (GRIESER et al, 2015b).…”

mentioning

confidence: 99%

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

Rossi

¹

,

Grieser

²

,

Conselvan

³

et al. 2017

SCA

View full text Add to dashboard Cite

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.

show abstract

Comparison of growth curve parameters of organs and body components in meat- (Coturnix coturnix coturnix)and laying-type (Coturnix coturnix japonica) quail show interactions between gender and genotype

Cited by 13 publications

References 14 publications

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

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

Comparison of the Quality Adjusting of Nonlinear Models for Organs, Carcass and Body Components in Meat-Type (Coturnix Coturnix Coturnix) and Laying-Type (Coturnix Coturnix Japonica) Quail

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

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