Desempenho de codornas de corte submetidas a diferentes níveis de proteína bruta e energia metabolizável

Teixeira, Bruno Bastos; Pires, Aldrin Vieira; Veloso, Rogério de Carvalho; Gonçalves, F. M.; Drumond, Eduardo Silva Cordeiro; Pinheiro, Sandra Regina Freitas

doi:10.1590/s0103-84782013005000014

Cited by 11 publications

(13 citation statements)

References 9 publications

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“…Teixeira et al (8) observed increase in the weight gain of European quails, with the increase of protein levels in the diets (from 18 to 26%, with a range of 0.02%) and 2700 kcal ME kg -1 . Otutumi et al (9) observed better performance for European quails fed 27% CP in diets, from 1 to 14 days of age.…”

Section: Resultsmentioning

confidence: 96%

“…Result similar to this work was reported by Corrêa et al (7) , that evaluating CP levels in diets for European quails from 1 to 21 days of age, found that higher feed intake was observed for quails fed 31% CP in diets. Teixeira et al (8) observed that 18.41% of CP in diet with 2550 kcal of ME kg -1 decreased feed intake of quails from 1 to 21 days of age and suggested that levels increased of CP and ME, can occur increased in feed intake.…”

Section: Resultsmentioning

confidence: 99%

“…The process reflects in energy expenditure for the bird, so the excess of amino acids, or proteins do not contribute to improve the performance of the birds. In a study to evaluate different CP diet levels for European quail, Teixeira et al (8) observed that quails fed 23% CP in diets and 3100 kcal ME kg -1 showed better weight gain from 1 to 35 days of age. The observed reduction in weight gain due to an increase in diet protein level, according to Lima et al (12) is because the excess in amino acids can result in deviation of the energy for the process of excretion, reducing, thus, the energy to be used for the weight gain, besides environmental cost of increased nitrogen excretion.…”

Section: Resultsmentioning

confidence: 99%

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Crude Protein in Diets of European Quails

et al. 2017

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The aim of this study was to evaluate crude protein (CP) levels for European quails from one to 14, 14 to 28 and 28 to 42 days old. The experiment was carried out in a completely randomized experimental design, with five treatments and five replications. No significant effects of CP levels on weight gain and feed conversion from 1 to 14 days were observed, however quails fed 26% CP diets had lower feed intake. The CP levels from 14 to 28 days had significant effect on feed intake, weight gain and feed conversion. Maximum weight gain and minimum feed conversion were estimated for quails fed 24% CP. The CP levels had a significant effect on the traits studied in the final phase, highest weight gain and lowest feed conversion were estimated for quails fed 23% CP. No significant effects of CP levels on hot and cold carcass weights, breast weight, and thigh and drumstick weight were observed. The crude protein requirements for European quails from 1 to 14, 14 to 28 days and 28 to 42 days old are 26, 24 and 23%, respectively, if the requirements of the first limiting amino acids are met. Keywords: Amino acids, carcass yield, Coturnix coturnix, performance. ResumoO objetivo deste estudo foi avaliar níveis de proteína bruta (PB) para codornas europeias de um a 14, 14 a 28 e 28 a 42 dias de idade. O delineamento experimental foi inteiramente ao acaso, com cinco tratamentos e cinco repetições. Os níveis de PB não influenciaram o ganho de peso e a conversão alimentar das codornas de 1 a 14 dias de idade. Porém, a dieta contendo 26% PB resultou em menor consumo da dieta. Os níveis de PB utilizados no período de 14 aos 28 dias influenciaram o consumo da dieta, o ganho de peso e a conversão alimentar, sendo o melhor ganho de peso e conversão alimentar estimados com dietas contendo 24% PB. Houve efeito significativo dos níveis de PB estudados, sobre o ganho de peso e conversão alimentar no período final, com máximos desempenhos estimados para codornas alimentadas com dieta com 23% PB. Não houve efeito dos níveis de PB sobre o peso da carcaça quente e peso da carcaça resfriada, peso do peito e da coxa mais sobrecoxa. As exigências de PB estimadas para codornas europeias são 26, 24 e 23% para as fases de 1 a 14 dias, 2 Cienc. anim. bras., Goiânia, v.18, 1-12, e-28085, 2017Crude protein in diets of european quails 14 a 28 dias e 28 a 42 dias de idade, respectivamente, se forem atendidas as exigências dos primeiros aminoácidos limitantes. Palavras-chave: Aminoácidos, Coturnix coturnix, desempenho, rendimento de carcaça.

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Section: Resultsmentioning

confidence: 96%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Crude Protein in Diets of European Quails

et al. 2017

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“…A sintopia dos sacos aéreos de codornas foi semelhante ao descrito na literatura clássica para o Gallus gallus domesticus, seguindo um padrão em todos os indivíduos. Os sacos aéreos, sem exceção, possuem comunicações com os pulmões (16) , corroborando com os achados deste trabalho, em que foi possível verificar tais comunicações (11) . No entanto, devido à não penetração completa do Látex, algumas comunicações podem não ter sido visualizadas.…”

Section: Discussionunclassified

“…De uma maneira geral, são descritos, para as aves, um grupo cranial de sacos aéreos (cervical, clavicular e torácico cranial), que se conecta aos brônquios secundários medioventrais e um grupo caudal (torácico caudal e abdominal), que se conecta aos brônquios secundários lateroventral e mediodorsal e ao brônquio primário intrapulmonar. As descrições comparativas dos sacos aéreos são complicadas em decorrência da existência de inúmeras terminologias para os mesmos (15,16) . Ocorre uma especulação considerável sobre as possíveis funções dos sacos aéreos na respiração, sendo que outras funções sugeridas são: diminuir o peso específico do corpo, reduzir a fricção das partes em movimento durante o voo, auxiliar na redução da temperatura corporal, aumentar a flutuação das aves aquáticas e diminuição do impacto dos órgãos (17)(18)(19) .…”

Section: Introductionunclassified

RELAÇÕES TOPOGRÁFICAS DOS SACOS AÉREOS DE CODORNAS (Coturnix coturnix)

Bianchi

Silvestre²,

Kfoury

et al. 2016

Ciênc. anim. bras.

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ResumoA morfologia das aves é pouco relatada, o que dificulta a prática veterinária nestes animais. O seu sistema respiratório é diferenciado pela presença dos sacos aéreos, estrutura de fundamental importância para as aves, porém muito susceptível a doenças. Dessa forma, objetivou-se descrever a anatomia dos sacos aéreos (SA) em codornas em relação às suas relações topográficas. Para tanto, foram dissecadas quinze codornas que tiveram seu trato respiratório injetado com Neoprene látex corado e fixadas em solução de formol a 10%. O SA cervical é ímpar e possui uma porção mediana localizada entre as artérias braquiocefálicas. O SA clavicular também é ímpar e inicia-se próximo às primeiras vértebras torácicas. Os SA torácicos cranial e caudal estão lateralmente ao pulmão e medialmente às costelas. O SA torácico cranial dispõe-se da margem dorso-látero-cranial até a margem ventral do fígado e o SA torácico caudal, do quarto látero-caudal do fígado até o terço cranial do SA abdominal. O SA abdominal vai da base caudal do fígado até a região cloacal. Contudo, os sacos aéreos das codornas estudadas nesta pesquisa seguem um padrão topográfico, formando divertículos entre os órgãos adjacentes. Palavras-chave: aves; Coturnix coturnix; sintopia; sistema respiratório. AbstractThe morphology of birds is rarely reported, hindering veterinary practice in these animals. The respiratory system is distinguished by the presence of air bags, a structure of fundamental importance to the birds, but very susceptible to diseases. Thus, the objective of this study was to describe the anatomy of the air sacs (AS) in quails regarding their topographical relationships. To this, fifteen quails that had their respiratory tract injected with Neoprene, stained and fixed in formalin 10% latex were dissected. Cervical AS is unique and has a middle portion located between the brachiocephalic arteries. The clavicular AS is also odd and starts near the first thoracic vertebrae. The cranial and caudal thoracic AS are lateral to the lung and medially to the ribs. The cranial thoracic AS goes from the dorsal lateral-cranial margin to the ventral margin of the liver, and the caudal thoracic AS goes from the fourth lateral-caudal margin of the liver to the cranial third of the abdominal AS. Abdominal AS goes from the liver to the base of the vent area. However, the air sacs in quails studied in this research follow a topographic pattern, forming diverticula between adjacent organs.

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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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Desempenho de codornas de corte submetidas a diferentes níveis de proteína bruta e energia metabolizável

Abstract: PB (18, 20, 22, 24 and 26%) and three levels of EM (2700, 2900 and 3100kcal kg -1

Cited by 11 publications

References 9 publications

Crude Protein in Diets of European Quails

Crude Protein in Diets of European Quails

RELAÇÕES TOPOGRÁFICAS DOS SACOS AÉREOS DE CODORNAS (Coturnix coturnix)

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

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