Características de carcaça de codornas de corte alimentadas com diferentes níveis de proteína e energia

Vasconcelos, Renan Costa; Pires, Aldrin Vieira; Lima, Heder José D’Ávila; Ballotin, Lucília Maria Valadares; Veloso, Rogério de Carvalho; Drumond, Eduardo Silva Cordeiro; Gonçalves, F. M.

doi:10.1590/s1519-99402014000400007

Cited by 6 publications

(3 citation statements)

References 9 publications

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“…The longer exposure time of the diet in the gastrointestinal tract may have increased metabolism, requiring greater liver activity, as reported in lipoprotein metabolism; as well as a possible greater deposition of fat in the organ, causing an increase in its weight. Vasconcelos et al (2014) evaluated the carcass characteristics in European quails from 1 to 50 days of age consuming different levels of protein and energy and observed an increase in the weight of edible viscera, such as gizzards and liver in birds that consumed 2700 kcal ME/kg and 18% CP; but nevertheless, the period evaluated by these authors differs from those analysed in this research.…”

Section: Discussioncontrasting

confidence: 52%

“…According to Ribeiro et al (2016), an energy increase of around 3150 kcal ME/kg can provide greater weight gain and better feed conversion, besides affecting the characteristics and quality of the meat. Vasconcelos et al (2014) recommended 2700 kcal of ME/kg and 18% crude protein for female European quails from 1 to 50 days of age for better results regarding weight, carcass and breast yield.…”

Section: Introductionmentioning

confidence: 99%

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Does the metabolizable energy influence the performance, carcass characteristics and biochemical parameters of European quails from 28 to 42 days of age?

Jesus

Santos

Silva

et al. 2022

Animal Physiology Nutrition

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This study was conducted to determine the metabolizable energy (ME) requirement for quails (Cortunix cortunix cortunix) from 28 to 42 days of age. Four hundred and twenty quails were distributed in a completely randomized design, with 5 treatments (2950, 3000, 3050, 3100 and 3150 kcal of ME/kg of feed), 7 replicates and 12 birds per experimental unit. Performance, relative weights of organs and viscera, carcass characteristics, meat quality, body composition and blood parameters of the birds were evaluated. There was a reduction in feed intake (ADFI) with the use of 3150 kcal ME/kg (p < 0.01), with a quadratic effect on feed efficiency (p < 0.01), estimating the energy requirement in the 3009.4 kcal ME/kg. The breast yield (BY) and the colour b* had an effect (p < 0.01), with better results for 2950 kcal ME/kg, while the meat texture reduced when the birds were fed with 3150 kcal ME/kg. HDL and LDL showed the quadratic effect (p < 0.01) when ME increased to 3111.6 and 3157.4 kcal/kg respectively. Very low density lipoprotein increased linearly (p < 0.01) in birds that received diets with 3000 kcal ME/kg. We conclude that the use of 3009.4 kcal of ME/kg for European quail meets the nutritional needs and provides an improvement in feed efficiency, without affecting the carcass parameters of the birds. Information regarding the nutritional requirements for European quails is still recent; therefore, it is essential to know the adequate levels of metabolizable energy, an important nutritional component for the maximum productive performance of birds.

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Section: Discussioncontrasting

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Does the metabolizable energy influence the performance, carcass characteristics and biochemical parameters of European quails from 28 to 42 days of age?

Jesus

Santos

Silva

et al. 2022

Animal Physiology Nutrition

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“…The weight of quail organs can vary according to age, weight, sex, room temperature, and types of food and water (Vasconcelos et al, 2014) and, under heat stress, there may be an increase in respiratory and heart rate. These facts may increase heart activity, affecting its weight.…”

Section: Resultsmentioning

confidence: 99%

Productive performance, egg quality and the morphometry of the organs of Japanese quails (Cotournix cotournix japônica) kept at different temperatures

et al. 2023

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The objective of this study was to evaluate the productive performance, egg quality and the morphometry of the organs of Japanese quails (Cotournix cotournix japônica) when kept in comfort and under thermal stress. 192 nine-week-old quail were used, distributed in a completely randomized design at two temperatures (T1 = 24 °C and T2 = 32 °C), with 12 replicates of eight birds each, with an experimental period of 63 days, divided into three 21-day periods. Feed intake (g fowl-1 day-1), water consumption (mL fowl-1 day-1), egg production (%), egg weight (g), egg mass (g fowl-1 day-1) and feed conversion (kg kg-1 and kg dozen-1). Laying quails after their production cycle are marketed as beef animals. It is observed that the average final live weight was reduced (P = 0.0362) by 27.58 g in birds kept at a temperature of 32 o C, which can compromise its commercial value. The feed intake of the birds was reduced (P = 0.0051) by 14.75% with an increase in ambient temperature. Birds kept at a temperature of 32 o C for 12 h daily showed a reduction in feed intake, final weight, yolk, and gizzard weight, but without affecting egg production, weight and mass.

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Mathematical model for the prediction of available phosphorus and calcium requirements for European quails of 16-36 days old

Mariz

Costa

Vieira

et al. 2020

RSD

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Were used 724 quails, with initial weight of 105.05±1.40g to determine the model requirements for European quails 16-36 days old. Were used 384 quails for the maintenance requirement experiment and 240 for the gain requirement experiment and the remaining 100 quails composed the birds of the comparative slaughter. Maintenance requirement: the treatments consisted of four levels of feed offerings (100, 75, 50 and 25% of consumption ad libitum) with four pens and four quails per pen for each climatic environment (18, 24 and 28ºC), being 192 quails for each nutrient under study. Gain requirement: the requirements of the studied nutrients for gain were determined from 240 quails, created and fed ad libitum, being 120 quails for each nutrient studied, that is, 30 quails were slaughtered at 21, 26, 31 and 36 days of age. The quails of the reference slaughter comprise the same as the experiment for determining the maintenance requirement. In conclusion. The prediction equations for estimating the requirements were: 1) Pr (mg/quail/day) = (27.029 + 1.5943 × T) × kg0.75 + 12.24 × WG, in which Pr is the phosphorus requirement, kg0.75 is metabolic weight (kg), WG is weight gain (g/quail/day). 2) Ca (mg/quail/day) = (158.93 - 5.187 × T) × kg0.75 + 23.66 × WG, in which Ca is the calcium requirement, kg0.75 is metabolic weight (kg), WG is weight gain (g/quail/day), T is temperature.

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Características de carcaça de codornas de corte alimentadas com diferentes níveis de proteína e energia

Cited by 6 publications

References 9 publications

Does the metabolizable energy influence the performance, carcass characteristics and biochemical parameters of European quails from 28 to 42 days of age?

Does the metabolizable energy influence the performance, carcass characteristics and biochemical parameters of European quails from 28 to 42 days of age?

Productive performance, egg quality and the morphometry of the organs of Japanese quails (Cotournix cotournix japônica) kept at different temperatures

Mathematical model for the prediction of available phosphorus and calcium requirements for European quails of 16-36 days old

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