Metabolizable energy levels for meat quails from 15 to 35 days of age

Muniz, Jorge Cunha Lima; Barreto, Sergio Luiz de Toledo; Mencalha, Raquel; Viana, Gabriel da Silva; Reis, Renata de Souza; Ribeiro, Cleverson Luís Nascimento; Hannas, Melissa Izabel; Albino, Luiz Fernando Teixeira

doi:10.1590/0103-8478cr20141666

Cited by 7 publications

(7 citation statements)

References 17 publications

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“…When the levels of 2,700 and 3,100 kcal kg -1 were compared, there was a 1.9 g reduction in feed intake. These results are in agreement with those reported by Muniz et al (2016), who observed decreased feed intake with increasing level of apparent metabolizable energy (2,850-3,250 kcal kg -1 ) in diets for quails.…”

Section: Resultssupporting

confidence: 93%

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Performance and egg production of European quails fed with increasing levels of apparent metabolizable energy

Góis

Santos

Carvalho

et al. 2022

Agraria

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This study aimed to evaluate the performance and egg production of European quails fed diets with different levels of apparent metabolizable energy. One hundred and twenty European quails (Coturnix coturnix coturnix) with 129 days of age and average body weight of 289.04 g were used. The experiment lasted 56 days, divided into 2 cycles of 28 days (first cycle: 129 to 156 days; second cycle: 157 to 185 days). A completely randomized experimental design was adopted, with five treatments (apparent metabolizable energy (AME) levels -2,700, 2,800, 2,900, 3,000, and 3,100 kcal kg -1 of AME) formulated with a ratio of apparent metabolizable energy and crude protein (AME:CP) of 122.73, 127.27, 131.82, 136.36, and 140.91, respectively, with four replications for treatments. Increasing AME reduced feed intake, egg production and albumen proportion during the first cycle (p < 0.05), in contrast to feed conversion per dozen eggs, and yolk proportion increased (p < 0.05). For the second cycle, egg production was reduced with increasing AME levels (p < 0.05). The better AME level for European quails was 2,700 kcal kg -1 of AME for a diet with 22% CP (AME:CP 122.73), obtaining the better performance (feed intake, egg production and feed conversion per dozen eggs) of quails from 129 to 185 days and egg production from 157 to 185 days. The inclusion of 3,000 kcal kg -1 of AME in the diets provided eggs with a higher proportion of yolk and a lower proportion of albumen.

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Section: Resultssupporting

confidence: 93%

“…The growing production demand in the area of coturniculture is accompanied by the need for knowledge of the nutritional management of quails. This practice has often been based on breeders experience, due to the scarce research conducted in Brazil on nutritional requirements for quails, especially for European quails (Muniz et al, 2016;.…”

Section: Introductionmentioning

confidence: 99%

Performance and egg production of European quails fed with increasing levels of apparent metabolizable energy

Góis

Santos

Carvalho

et al. 2022

Agraria

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“…These results corroborate those found by Muniz et al 13 , evaluating ME levels different for growing quail, which also observed a significant effect on the reduction of feed intake with the increase of ME in the diet. This confirms the theory that birds regulate feed intake according to ME content in the diet.…”

Section: Discussionsupporting

confidence: 92%

In vivo determination of domestic quail (Coturnix japonica) muscle development by ultrasonography as a function of energy levels

Santos

Alves

Araujo

et al. 2023

Sci Rep

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The aim was to evaluate the growth and meat production and some meat quality characteristics of domestic quail (Coturnix japonica) as a function of metabolizable energy (ME) levels in the diet and to adjust predicting equations in ratio to area pectoralis major muscle of the carcass through the ultrasound. Two hundred and seventy mixed sex quail from 7 to 49 days old were distributed in three treatments (7 to 21 days old, diets with 2700; 2900 and 3100 kcal ME/kg; from 21 to 49 days, diets with 2900, 3050 and 3200 kcal of ME/kg), with five replications per treatment. Ultrasonography was performed at 21; 35 and 49 days of age in the pectoralis major muscle to determine prediction equations through multiple linear regression. Feed intake (FI) and feed efficiency (FE) were linearly influenced (P < 0.05) by energy levels in both phases evaluated. Regarding sensory analysis, there was no interference of ME levels on sensory attributes. The equation for predicting breast area was Y = 0.00271*ME + 0.25411*Age-9.58002, R2 = 74.25%. It is concluded that increasing the energy level of the feed from 2700 to 3100 kcal ME/kg reduces FI and improves the FE of quail. The increase in carcass fat from 35 days of age does not harm the physical and sensory characteristics of the meat. The ultrasonography in vivo of the M. pectoralis major, considering the age and energy level of the diet, made it possible to predict the pectoral muscle are a with higher reliability.

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“…The reduction in carcass weight as the feed energy level increased may be associated with a lower intake of feed and nutrients in the free-range broiler chicken. The lower intake of feed, which shows a loss in the utilization of these nutrients and in the rates of protein deposition, leads to suboptimal carcass composition (Muniz et al, 2016).…”

Section: Discussionmentioning

confidence: 99%

Metabolizable Energy Levels for Free-Range Broiler Chickens

Copat

Nascimento²,

Kiefer

et al. 2020

JAS

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The aim of this study was to evaluate the effect of dietary metabolizable energy levels on the performance and carcass yield of free-range broiler chickens from 1 to 84 days of age. A total of 900 male day-old naked neck lineage chicks were distributed in a completely randomized design between six levels of metabolizable energy (2,700; 2,800; 2,900; 3,000; 3,100 and 3,200 kcal.kg-1 diet) with six replications of 25 birds each. The increase in levels of dietary metabolizable energy resulted in a linear reduction of the feed intake, crude protein and digestible lysine intakes, as well as in the protein body deposition and protein efficiency and linear improvements in the feed conversion ratio of chickens in all experimental phases. The carcass yield, wing and abdominal fat weight and percentage of abdominal fat reduced linearly by increasing the level of dietary metabolizable energy. The diet including 2700 kcal.kg-1 of metabolizable energy in the diet of free-range broiler chickens in phases 1 to 28, 28 and 56 and 57 to 84 days of age does not interfere in the broilers performance and results in a better carcass yield in the final period of production.

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Metabolizable energy levels for meat quails from 15 to 35 days of age

Abstract: This trial was carried out to evaluate the effects of dietetic metabolizable energy levels on performance and carcass traits of meat quails from

Cited by 7 publications

References 17 publications

Performance and egg production of European quails fed with increasing levels of apparent metabolizable energy

Performance and egg production of European quails fed with increasing levels of apparent metabolizable energy

In vivo determination of domestic quail (Coturnix japonica) muscle development by ultrasonography as a function of energy levels

Metabolizable Energy Levels for Free-Range Broiler Chickens

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