Percentual de postura de codornas europeias alimentadas com diferentes níveis de lisina utilizando regressão beta

Silva, M.C.S.; Lucena, Leandro Ricardo Rodrigues de; Holanda, Marco Aurélio Carneiro de; Holanda, Mônica Calixto Ribeiro de

doi:10.21071/az.v68i264.4987

Cited by 4 publications

(3 citation statements)

References 13 publications

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“…European quail have a maximum of 77.79% in their laying. Silva et al (2019) reported that, in European quail fed up to 50% maize meal, feed conversion and feed intake negatively influenced egg production, with a rate of 0.3%, respectively. Sultana et al (2007) reported a laying percentage 60% in Japanese quail fed with a 60% maize diet.…”

Section: Discussionmentioning

confidence: 99%

“…Use Nutrition studies proposing the replacement of maize and soybean meal by unconventional foods, such as broken rice (Ashour et al, 2015), and sorghum (Freitas et al, 2014;Silva et al 2018) have been gaining prominence, because it reduces the cost of formulating feed for Japanese quails (Coturnix coturnix japonica) (Edache et al, 2005;Niamat, 2017;Lucena et al, 2019) and European quail (Coturnix coturnix) (Silva et al, 2019;Severo et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

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Performance of european laying quail fed with diets containing maize germ meal

Holanda¹,

Lucena²,

Holanda³

2020

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The objective of the research was to study the effect of substitution of maize for maize germ meal in laying European quail diets. 240 female quails were used in a randomized design with three treatments and eight replications, containing 10 birds per plot. The treatments consisted of a maize and soybean meal-based reference diet and two levels of substitution of maize for maize germ meal, 50 and 100%. Evaluated parameters were: number of eggs per bird housed, laying rate, feed intake, feed conversion, weight of egg, yolk, albumen and shell, and yolk pigmentation. Parameters were evaluated using analysis of variance and Tukey test, with the significance level set at 5%. In the two laying cycles studied there was a difference in the number of eggs, percentage of laying, feed conversion, weight of egg, yolk and shell and yolk pigmentation. The replacement of maize by maize germ meal in diets for laying European quail can be carried out up to 100%, producing improvement in the productive performance of the birds and in egg quality.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Performance of european laying quail fed with diets containing maize germ meal

Holanda¹,

Lucena²,

Holanda³

2020

RSD

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“…The quality of the egg produced is a very important factor, since it will determine the success of the product in the consumer market (SILVA et al 2019). Yolk color is a sensory attribute considered an important characteristic of egg quality.…”

Section: Introductionmentioning

confidence: 99%

Coloração da gema e análise sensorial de ovos de codornas europeias (Coturnix coturnix coturnix) alimentadas com ração à base de sorgo com adição de farelo de urucum (Bixa orellana L.)

Lima

Carvalho

Góis

et al. 2022

Rev. Ciênc. Agrovet.

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Objetivou-se avaliar o efeito de níveis crescentes do farelo do resíduo da semente de urucum (Bixa orellana L.) (FU), sobre a pigmentação da gema e análise sensorial dos ovos de codornas europeias alimentadas com dietas à base de sorgo em substituição ao milho. Foram utilizadas 80 codornas europeias (Coturnix coturnix coturnix) fêmeas, na fase de postura, no período de 251 a 316 dias de idade. Foram três períodos experimentais de 21 dias cada (251-272; 273-294; 295-316 dias). As codornas foram distribuídas em delineamento inteiramente casualizado, com cinco tratamentos (T1 - ração à base de milho; T2 - ração com 100% de sorgo em substituição ao milho sem a adição de FU; T3, T4 e T5 – ração com 100% de sorgo em substituição ao milho com a adição de 0,5; 1,0 e 1,5% de FU) e quatro repetições. Cem ovos de cada tratamento foram utilizados para a análise. A avaliação sensorial foi aplicada em painel não treinado de 20 avaliadores. Os ovos foram cozidos, descascados e servidos. A aparência, sabor, cor, odor, textura e avaliação global, foram avaliadas pelos painelistas. A farinha de semente de urucum adicionada à ração à base de sorgo promoveu aumentos lineares nos atributos aparência, sabor, cor, odor, textura e avaliação global, avaliados durante a análise sensorial (p=0,001). A adição de 1,5% de FU em dietas a base de sorgo beneficiou as características de aparência (4,50), sabor (4,50) cor (4,55), aroma (4,25) e textura (4,55) dos ovos de codorna avaliados, sendo considerados mais atrativos e com maior aceitação (avaliação global = 5,97), em relação aos demais tratamentos testados. A inclusão do FU nas rações à base de sorgo melhorou a pigmentação da gema dos ovos de codorna em relação aos tratamentos controle. O AM desencadeia efeitos positivos na pigmentação da gema e nas características sensoriais de ovos de codornas comuns.

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Growth curve mixed nonlinear models in quails

et al. 2023

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Our aim was to evaluate the use and application of different nonlinear mixed models, as well as to compare them with approach in nonlinear fixed models, for describing the growth curve of meat-type quails according to gender. A total of 15,002 and 15,408 records of males and females were used, respectively. The body weights were regressed on age of the animals using nonlinear models (Brody; Gompertz; Logistic, Morgan-Mercer-Flodin, Richards and Von Bertalanffy). All model parameters were considered fixed, whereas parameters related to asymptotic weight and maturity rate were fitted as random effects. The Bayesian Information Criterion was used to find the model of best fit. For both genders, the model that used the Morgan-Mercer-Flodin function with the inclusion of asymptotic weight as a random effect was considered the best-fitting model because it reduced the residual variance and increased the accuracy. Based on the lower absolute growth rate and growth velocity of male quails compared to that of females, it can be inferred that males should be slaughtered later. Given the results of this study, it can contribute to the current knowledge about animal yield, specifically at the best moment to slaughter and, this sense, improv the quality genetic of the populations in time.

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Percentual de postura de codornas europeias alimentadas com diferentes níveis de lisina utilizando regressão beta

Cited by 4 publications

References 13 publications

Performance of european laying quail fed with diets containing maize germ meal

Performance of european laying quail fed with diets containing maize germ meal

Coloração da gema e análise sensorial de ovos de codornas europeias (Coturnix coturnix coturnix) alimentadas com ração à base de sorgo com adição de farelo de urucum (Bixa orellana L.)

Growth curve mixed nonlinear models in quails

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