Características de carcaça de codornas de corte EV1 alimentadas com diferentes níveis de metionina+cistina total

Ferreira, Fabiana Vargas; Corrêa, G.S.S.; Corrêa, Angelita Duarte; Silva, M.A.; Felipe, V.P.S.; Wenceslau, Raphael Rocha; Freitas, L.S.; Santos, G.G.; Godinho, Rodrigo Mezêncio; Clímaco, W.L.S.; Dalsecco, Lissandra Sousa; Júnior, João Garcia Caramori

doi:10.1590/1678-6283

Cited by 3 publications

(1 citation statement)

References 14 publications

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“…Devido ao fígado ser responsável pela síntese lipídica nas aves, quando as codornas atingem a maturidade sexual, há um aumento na sua atividade metabólica, fazendo com que o conteúdo hepático das fêmeas seja maior que nos machos. Esses mesmos achados foram observados anteriormente na literatura (TABOADA 1998, CORRÊA et al 2008, FERREIRA et al 2014.…”

Section: Resultsunclassified

Exigência de proteína bruta para codornas europeias

Merseguel

Burbarelli

Polycarpo

et al. 2019

Rev. Ciên. Agrovet.

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A precisão no atendimento das exigências nutricionais é de grande importância na produção de codornas, porém há ausência de consenso quanto às recomendações de proteína bruta (PB) para codornas de linhagens específicas para corte. O presente estudo teve como objetivo determinar a exigência de PB para codornas europeias sobre o desempenho e sobre as características de carcaça. Foi utilizado o delineamento inteiramente casualizado em esquema fatorial 5 × 2, sendo cinco níveis de PB para machos e fêmeas. Na fase inicial (1 a 21dias), foram utilizadas 1.800 codornas e níveis de PB de 20,0, 22,5, 25,0, 27,5 e 30,0%, com seis repetições contendo 30 aves cada. Na fase de crescimento (22 a 45 dias), foram usadas 1.620 codornas e níveis de PB de 17,5, 19,5, 22,0, 24,5 e 27,0%, com seis repetições contendo 27 aves cada. As dietas foram fareladas a base de milho e farelo de soja. O desempenho das codornas foi avaliado ao final de cada período, e o rendimento de carcaça no 45º dia. Aos 21 dias houve maior ganho de peso e melhor conversão alimentar, independentemente do sexo, com 25,50% e 27,06% de PB, respectivamente. No período de 22 a 45 dias, observou-se somente efeito do sexo, sendo que as fêmeas obtiveram desempenho superior. Com relação às características de carcaça, os machos obtiveram maior rendimento de carcaças (quente, fria e dorso); já as fêmeas, apresentaram maior rendimento de cortes (peito, moela e fígado).

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Section: Resultsunclassified

Exigência de proteína bruta para codornas europeias

Merseguel

Burbarelli

Polycarpo

et al. 2019

Rev. Ciên. Agrovet.

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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

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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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Lighting programs for male and female meat quails (Coturnix coturnix) raised in equatorial region

et al. 2017

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The aim of the present study was to evaluate the effect of lighting programs for male and female meat quails raised in an equatorial region on performance and carcass traits. A total of 1,500 sexed quails (Coturnix coturnix) was distributed in a completely randomized design in a 2 × 3 factorial arrangement, with 2 sexes (male and female) and 3 lighting programs (natural, intermittent, and continuous) with 5 replicates of 50 birds. The lighting programs were applied in the period from 7 to 49 d of age, being natural (12 h and 30 min of natural light and 11 h and 30 min of dark), intermittent (12 h and 30 min of natural light and 5 h and 30 min of artificial light, alternating lighting periods with one h and 06 min and periods of darkness with one h and 12 min), and continuous (23 h of natural + artificial light and one h of dark). Regardless of lighting program, female quails were heavier than males, and birds subjected to natural light weighed less than those exposed to continuous and intermittent lighting programs. Quails exposed to intermittent and continuous light presented higher weight gain and feed intake, and worse feed conversion ratio compared to birds under a natural light regimen. It is concluded that in an equatorial region, it is possible to use a lighting program with only natural light for raising male and female meat quails from 7 to 49 d of age.

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Características de carcaça de codornas de corte EV1 alimentadas com diferentes níveis de metionina+cistina total

Cited by 3 publications

References 14 publications

Exigência de proteína bruta para codornas europeias

Exigência de proteína bruta para codornas europeias

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

Lighting programs for male and female meat quails (Coturnix coturnix) raised in equatorial region

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