Influência do cromo no desempenho, na qualidade da carne e no teor de lipídeos no plasma sanguíneo de frangos de corte

Souza, Luciana Maria Garcia de; Murakami, Alice Eiko; Fernandes, Jovanir Inês Müller; Guerra, Rafael Lachinski de Holanda; Martins, Elias Nunes

doi:10.1590/s1516-35982010000400016

Cited by 9 publications

(6 citation statements)

References 15 publications

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“…The pH and L*(luminosity) values recorded in this study indicate that the meat quality encountered is within the normal patterns observed, since rigor mortis of the birds took 15 to 45 minutes (BURBUT, 1997;BRESSAN & BERAQUET, 2004;SOUZA et al 2010). This leads us to conclude that adding SPM to the diets did not affect the meat quality of the broiler chickens.…”

Section: Resultssupporting

confidence: 71%

Strategies to include sweet potato meal associated with the use of exogenous enzymes, in broiler chicken feed

Bahule

Brito

Balbino

et al. 2018

Rev. bras. saúde prod. anim.

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SUMMARY This work evaluated the effect of including sweet potato meal (SPM), as an alternative to corn in broiler chicken diets, on performance, carcass yield, intestinal morphometry, organ biometry, meat quality and drumstick pigmentation. The study used 936 male Cobb-500 chicks. The experiment had a completely randomized, 3x2 factorial design, with three diet types. These included corn as the energetic ingredient in the standard diet (corn-soybean meal, CSM), and an increasing (ISP) and decreasing (DSP) inclusion of sweet potato meal as a corn substitute, in association with exogenous enzymes, for a total of six treatments with six repetitions and 26 birds per plot. During the period of 1 to 21 days, there was an interaction (P<0.05) for the weight gain (WG) variable; the CSM diets promoted greater WG in relation to the ISP and DSP groups, when supplemented with exogenous enzymes. There was an increase (P<0.05) in surface absorption of the jejunum villi and relative weight of the pancreas, and worse feed conversion (FC), for the ISP and DSP diets. With exception of the pancreas, for the entire period of 1 to 39 days the performance, yield of the carcass and cuts, meat quality, relative weight of the liver, and feet pigmentation variables were not affected (P>0.05) by the factors evaluated. Sweet potato meal, independent of the inclusion program (ISP/DSP) and enzyme supplementation, could partially substitute corn in broiler chicken feed, guaranteeing good performance, carcass yield and meat quality.

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Section: Resultssupporting

confidence: 71%

Strategies to include sweet potato meal associated with the use of exogenous enzymes, in broiler chicken feed

Bahule

Brito

Balbino

et al. 2018

Rev. bras. saúde prod. anim.

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“…Resultados semelhantes para rendimento de carcaça foram obtidos por Sands & Smith (1999), trabalhando com 200 e 400 μg Cr/kg na forma de picolinato de cromo; Debski et al (2004), suplementando 1 g Cr/kg na forma de cromo levedura; Anandhi et al (2006), suplementando 250 a 750 μg Cr/kg na forma orgânica; e Souza et al (2010), suplementando 150 a 600 μg Cr/kg na forma de tripicolinato de cromo. Segundo Walker (1993), o cromo poderia aumentar o rendimento de carcaça por melhorar a absorção de aminoácidos e síntese proteica, enquanto Page (1991), citado por Chen et al (2001), sugeriram que a dieta com cromo aumenta a liberação do hormônio de crescimento, que promove aumento do desenvolvimento muscular.…”

Section: Resultsunclassified

Características produtivas e imunológicas de frangos de corte submetidos a dietas suplementadas com cromo, criados sob diferentes condições de ambiente

et al. 2012

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RESUMO -Objetivou-se avaliar o desempenho, a resposta imune e as características de carcaça de frangos de corte alimentados com dietas suplementadas com cromo complexado a levedura (Saccharomyces cerevisae), criados em diferentes condições de temperatura. O experimento foi conduzido em câmaras climáticas com sistema de aquecimento e refrigeração, utilizando-se as seguintes condições de temperatura, de acordo com as idades: 1 a 3 dias (35, 35 e 35 o C ± 2), 4 a 7 dias (35, 30, 25 o C ± 2), 8 a 14 dias (34, 27 e 20 o C ± 2), 15 a 21 dias (33, 26 e 18 o C ± 2) e de 22 a 47 dias (32, 26 e 18 o C ± 2), respectivamente, para temperatura quente, termoneutra e fria. As dietas foram suplementadas com 0, 400, 800, 1.200 μg Cr/kg. A suplementação de 400 μg Cr/kg melhora a viabilidade e, em aves mantidas em temperatura quente, a conversão alimentar, enquanto a temperatura de criação mostrou ter grande influência sobre as características produtivas em todas as fases de criação. As aves criadas em temperatura quente apresentam melhor resposta imune, maior rendimento de carcaça e pernas e resultados inferiores de desempenho e rendimento de peito.Palavras-chave: anticorpo, desempenho, estresse térmico, rendimento carcaça Productive and immunological traits of broiler chickens fed diets supplemented with chromium, reared under different environmental conditionsABSTRACT -The objective of this experiment was to evaluate performance, immune response and traits concerning carcass and poultry cuts of broiler chickens fed diets supplemented with chromium-yeast (Saccharomyces cerevisae), reared under different environmental temperature conditions. Birds were reared in climate chambers with heating and cooling system, using the following environmental temperatures according to ages: from 1 to 3 days of age (35, 35 and 35 o C ± 2), from 4 to 7 days of age (35, 30 and 25 o C ± 2), from 8 to 14 days old (34, 27 and 20 o C ± 2), from 15 to 21 days of age (33, 26 and 18 o C ± 2) and from 22 to 47 days of age (32, 26 and 18 o C ± 2), respectively, for high, thermoneutral and low temperatures.Diets were supplemented with 0; 400; 800; and 1,200 μg Cr/kg. Supplementation with 400 μg Cr/kg enhances the viability and, in birds reared in high temperature, feed conversion as well, while temperature showed to have great influence upon productive traits in every rearing phase. Chickens reared at high temperature presented better immune response, higher carcass dressing percentage and leg quarter yield, but inferior results for breast yield and performance. IntroduçãoOs frangos estão cada vez mais precoces e com maior ganho de peso. Por outro lado, tem se observado aumento de gordura na carcaça, principalmente na região abdominal. A composição da carcaça e o rendimento de carne dependem da nutrição, do manejo, da genética e das condições de ambiente. Sabe-se que altas temperaturas proporcionam menores rendimentos de peito e maior deposição de gordura na carcaça (Ain Baziz et al., 1996). Segundo Furlan & Macari (2002), a zona de conforto térmico das...

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“…However, in the present study, there were no changes in carcass characteristics with biocomplexed chromium and selenium supplementation. Other authors found no influence of the supplementation of biocomplexed chromium (Souza et al, 2010;Zheng et al, 2016;Huang et al, 2016;Arif et al, 2019;Ognik et al, 2020) and selenium (Oliveira et al, 2014;Safdari-Rostamabad et al, 2017;Silva et al, 2019) on the main carcass characteristics, either. The effectiveness of supplementation basically depends on the levels and bioavailability of the source of minerals to be added to the diet, and these factors may be insufficient to promote alterations in tissue metabolism that allow an increase in the main carcass characteristics (Huang et al, 2016;Li et al, 2018).…”

Section: Discussionmentioning

confidence: 90%

Effect of the supplementation of biocomplexed minerals in diets for free-range chickens on performance and carcass characteristics

Cruz

Miranda

Marçal

et al. 2020

Revista Brasileira De Zootecnia

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We intended to evaluate the influence of supplementation with biocomplexed minerals on the performance and carcass characteristics of Label Rouge broilers of both sexes, as well as on the feed efficiency and feed costs. The experimental design was completely randomized arranged in factorial scheme (3×2)-three experimental diets (control, 0.50 ppm of selenium, and 0.40 ppm of chromium) and two sexes (male and female). Each treatment was composted of three plots, each one represented by 21 birds. The average weight (g/bird), weight gain (g/bird), feed intake (g/bird), and feed conversion in periods of 1 to 7, 1 to 21, 1 to 35, 1 to 49, 1 to 63, and 1 to 90 days were calculated. Weight and yield of carcass and cuts were determined. Both average feed cost (AFC, R$/bird) and cost per kg of weight gain (CWG, R$/kg weight gain) as well as economic efficiency index (EEI) were estimated. There was no influence of the diet on performance, carcass characteristics, and feed costs of the birds. The males presented higher means of average weight (3819.2 g/bird), weight gain (3780.9 g/bird), feed intake (11030.2 g/bird), and better feed conversion index (2.9) in the period of 1 to 90 days, besides presenting higher values of live weight at slaughter (3740.2 g), carcass weight (3117.5 g) and carcass yield (83.4%), breast weight (832.4 g), thigh weight (432.5 g), and thigh yield (13.9%); the females presented higher breast yield values (28.1%). The males presented higher AFC and lower CWG. The addition of minerals in the diet does not change performance, carcass characteristics and feed costs. The males present better performance and better carcass characteristics, in addition to being economically more viable.

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Influência do cromo no desempenho, na qualidade da carne e no teor de lipídeos no plasma sanguíneo de frangos de corte

Cited by 9 publications

References 15 publications

Strategies to include sweet potato meal associated with the use of exogenous enzymes, in broiler chicken feed

Strategies to include sweet potato meal associated with the use of exogenous enzymes, in broiler chicken feed

Características produtivas e imunológicas de frangos de corte submetidos a dietas suplementadas com cromo, criados sob diferentes condições de ambiente

Effect of the supplementation of biocomplexed minerals in diets for free-range chickens on performance and carcass characteristics

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