Adjusting weight growth curve of male quails &lt;i&gt;Coturnix japonica&lt;/i&gt; reared in the semi-arid region of the State of Pernambuco

Lucena, Leandro Ricardo Rodrigues de; Holanda, Marco Aurélio Carneiro de; Holanda, Mônica Calixto Ribeiro de; Anjos, Marcelo Lopes dos

doi:10.4025/actascianimsci.v41i1.42563

Cited by 4 publications

(5 citation statements)

References 16 publications

(25 reference statements)

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“…are the parameters associated at the model (Lucena et al, 2019). The models were evaluated by the following criteria: coefficient of determination of model (R²), Akaike's information criterion (AIC), and by the sum of the squared residuals (SSR) (Lucena et al, 2019).…”

Section: Methodsmentioning

confidence: 99%

“…where, is the maximum likelihood function, defined as the product of density function, p is the number of model parameters and is the mean of variable in the analysis (Yi). All analyzes were performed using R-project 2.13.1 software (Lucena et al, 2019). Table 2 shows that the percentage of posture was higher when the quails were fed digestible lysine levels of 1.1317 (79.71%) and 1.417% (80.14%), respectively.…”

Section: Methodsmentioning

confidence: 99%

“…The creation of quail for production of meat and eggs has presented an expressive growth in Brazil, since it represents a good alternative to obtain products of high nutritional quality for population (Drumond et al, 2013;Fernandez et al, 2018). The rapid development of quail farming is reinforced by the greater participation of large poultry companies, which improve management techniques and invest in modern installations, allowing housing an increasing number of birds in the same shed (Lucena, Holanda, Holanda, & Anjos, 2019). In 2016, the number of quail in Brazil, regardless of the type of creation (meat or egg production), was 15.1 million birds distributed in various regions of the country.…”

Section: Introductionmentioning

confidence: 99%

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Digestible lysine requirement for European laying quail

Severo

Holanda

et al. 2019

Acta Sci. Anim. Sci.

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The experiment was carried out to evaluate the productive performance of European quails (Coturnix coturnix) in the production phase, fed with diets containing different levels of digestible lysine. A total of 175 female quails, aged 65 days, were randomly distributed in a completely randomized design with five treatments and five replicates per treatment. The animals were housed in 25 metal cages, and each cage represented an experimental parcel, with seven birds per parcel. The birds were fed the experimental rations containing 1.177, 1.217, 1.317, 1.417, and 1.517% digestible lysine. The parameters evaluated were: laying rate, mass of eggs produced, feed intake in the period, lysine intake, feed conversion per dozen and per mass. Significant differences were observed for posture rate with quadratic behavior, which indicated higher production for the level of 1.23% of digestible lysine. There was an increasing linear behavior for the feed and lysine intake, and for conversion feed per dozen and by mass, we observed quadratic behaviors. This indicates better feed conversion index when the optimal inclusion level was 1.33% and 1.404% of digestible lysine in the diet, respectively. The requirement of digestible lysine in diets for European quails is 1.404%, which corresponds to a daily intake of 421.20 milligrams of digestible lysine.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Digestible lysine requirement for European laying quail

Severo

Holanda

et al. 2019

Acta Sci. Anim. Sci.

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“…The mathematical models for describing growth kinetics are important tools to examine biological parameters, such as body weight at specific time, maximum growth response, and body weight at maturity, growth rates, inflection point, and body weight at the inflection point. Numerous growth functions have been developed to describe and fit the nonlinear sigmoid relationship between growth and time or age (Lucena et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Predicting the growth curve of body weight in Ettawa Crossbred Goats with Logistic and Gompertz mathematical models

Putra,

Wiradarya,

Harahap

et al. 2022

ANIMPRO

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Ettawa crossbred goat is one of Indonesian native goat that kept for meat and milk productions. This research was aimed to predict the growth curve of body weight in Ettawa crossbred goat at 1 - 24 months of age with Logistic (L) and Gompertz (G) mathematical models. The number of 48 goats (24 males and 24 females) were used in this study and collected from Tambang District, Kampar Regency, Riau Province of Indonesia. Research showed that L and G models have the very high coefficient determination (R2) value (R2>0.90). The asymptotic weight (A) in animal studies was 53.34 kg (L) / 55.20 kg (G) for male and 36.99 kg (L) / 39.86 kg (G) for female. The inflection of weight (IW) in animal studies was 26.67 kg (L) / 20.29 kg (G) for male and 18.49 kg (L) / 14.65 kg (G) for female. The inflection of age (IA) in animal studies was 8.54 months (L) / 6.74 months (G) for male and 9.80 months (L) / 7.00 months (G) for females. In conclusion, the growth curve of body weight in Ettawa crossbred goats can be predicted with L and G models accurately.

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“…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%

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

Holanda¹,

Lucena²,

Holanda³

2020

RSD

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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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Adjusting weight growth curve of male quails <i>Coturnix japonica</i> reared in the semi-arid region of the State of Pernambuco

Cited by 4 publications

References 16 publications

Digestible lysine requirement for European laying quail

Digestible lysine requirement for European laying quail

Predicting the growth curve of body weight in Ettawa Crossbred Goats with Logistic and Gompertz mathematical models

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

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