Efficiency of lysine utilization by growing meat quail

Siqueira, Jefferson Costa de; Filho, F. C. Vieira; Nascimento, Dáphinne Cardoso Nagib; Bomfim, M. A. D.; Barbosa, N. A. A.; Araújo, José Anchieta de; Ribeiro, Felipe Barbosa; Oliveira, Francisco Loiola de

doi:10.1016/j.psj.2021.01.034

Cited by 2 publications

(1 citation statement)

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“…The determination of nutritional requirements supports the maintenance of growth in the poultry sector and must be updated to maximize the use of nutrients in the diet (Siqueira et al, 2021; Zancanela et al, 2015). Providing adequate levels of metabolizable energy (ME) for European quails is essential since an energy imbalance can compromise bird performance and alter feed intake (Mbajiorgu et al, 2011).…”

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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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: 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

View full text Add to dashboard Cite

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Estimate of lysine nutritional requirements for Japanese quail breeders

Carvalho,

Sousa,

Pavanini

et al. 2023

PeerJ

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Background Japanese quail breeders are the basis for genetic improvement and multiplication for commercial layers, however, there have been no known studies on the optimal lysine level for these birds. Thus, study the egg output response to the lysine (Lys) supply using different e-functions and evaluate the that best fit, have allowed the partition the lysine requirements for maintenance, both weight and egg output maximum. Methods The objectives of this study were to identify the responses to various Lys levels, identify the functions related to these responses and determine the ideal Lys intake amount for Japanese quail breeders. A completely randomized design of seven treatments with seven replicated was used. Treatments consisted of diet supplementation by Lys in concentrations of 16.8, 11.8, 8.4, 6.7, 5.0, 3.4, and 1.7 g/kg. Six exponential models were adjusted. Results The level of Lys was found to affect bird responses (P < 0.001). The birds responded to the levels provided, allowing for the creation of a lysine response curve. A monomolecular function with four parameters was balanced against the statistics of adjustment and selection of models. It was possible to estimate the level of lysine required for maintenance as 133 ± 2 mg/kg BW0.67, and based an average of 41% efficiency, 22 mg Lys produced 1 g of egg output (EO). The daily intake calculated by the monomolecular factorial model was 284 mg Lys for a bird with 0.170 kg body weight and production of 10 g EO/day. The four-parameter monomolecular function proposed in this study is adequate for interpreting the animal response and calculating lysine intake for breeders.

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Efficiency of lysine utilization by growing meat quail

Cited by 2 publications

References 39 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?

Estimate of lysine nutritional requirements for Japanese quail breeders

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