Efeito de dois programas de alimentação sobre o desempenho e o rendimento de carcaça de duas marcas comerciais de frangos de corte

Rodrigueiro, Ramalho José Barbosa; Murakami, Alice Eiko; Pozza, Paulo César; Scapinello, Cláudio; Moreira, Ivan; Neme, Rafael

doi:10.1590/s1516-35982000000200025

Cited by 5 publications

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“…O programa nutricional diário não prejudica o ganho de peso e a conversão alimentar dos frangos de corte. Corroborando com esses resultados, Rodrigueiro et al . (2000) avaliando dois programas de alimentação, três e quatro fases, sobre o desempenho de frangos de corte, concluíram que no período de 46 dias não houve efeito dos programas de alimentação sobre o ganho de peso e consumo de ração.…”

Section: Resultsunclassified

Estudos de programas nutricionais alternativos na dieta de frangos de corte com o uso do grão inteiro de sorgo

Silveira¹

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The present study aimed to compare three nutritional programs, developed with rations based on whole grain sorghum without tannin, evaluating the growth performance, carcass yield and cuts, gastrointestinal development and the absorption surface of the small intestine of broilers. In total, 1360 broiler chicks, mixed (50:50), with a day-old lineage Hubbard Flex were distributed according to a completely randomized design composed of four treatments and ten replications each, as follows: three programs with whole sorghum grain-based ration (nutrition program with daily adjustment, nutritional program with adjustment every three days and four phases) and a program with ground sorghum grain-based ration (four phases). The variables analyzed were the feed intake; weight gain; feed conversion; viability; eviscerated carcass yield and cuts (chest (full and boned), thighs/drumsticks and wings); chemical composition of the pectoral muscle; relative weight of the small intestine (ID) and gizzard; length, histomorphometry and absorption area ID.Performance variables were submitted to ANOVA. The variables of yield, composition, relative weight of gizzard and ID and ID length were submitted to ANOVA in factorial scheme (4x2). In the variable ID histomorphometry of males applied the ANOVA. Verification of the strength and direction of a linear relationship between the weight of gizzard and intestine weight was made through the Pearson correlation coefficient. Nutrition program with adjustment daily and every three days showed better feed conversion, didn´t affect carcass yield and commercial cuts, promoted an increase in size of the gizzard, which result in further development of the small intestine. It is concluded that the daily feeding programs could be made possible in the poultry industry with the mixture of sorghum grains and concentrates directly on farms running for better logistics and shipping cost of feed.

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Section: Resultsunclassified

Estudos de programas nutricionais alternativos na dieta de frangos de corte com o uso do grão inteiro de sorgo

Silveira¹

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“…Aves alimentadas com a dieta pré-inicial por 14 dias apresentaram um percentual de rendimento de carcaça superior, quando comparadas às aves alimentadas por 7 dias com a dieta pré-inicial. Em estudo conduzido por Rodrigueiro et al (2000), não foram observados efeitos significativos para rendimento de carcaça e percentual relativo de gordura abdominal, quando as aves foram alimentadas com dieta pré-inicial por um período de 10 dias.…”

Section: Desempenhounclassified

“…Outro fator de importância relevante são os níveis nutricionais adotados nas dietas pré-iniciais. Rocha et al (2003) (BERTECHINI et al, 1991a(BERTECHINI et al, , 1991bRODRIGUEIRO et al, 2000).…”

Section: Introductionunclassified

Nutrição pós-eclosão de frangos de corte

Gomes¹

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À minha namorada, Caroline, que com muito amor e compreensão me impulsionou e me incentivou a buscar meus ideais, aceitando se privar de minha companhia. OFEREÇO Aos meus pais, Alfredo e Ligia, e meus irmãos, Demetrius e Vinicius, pelo companheirismo, afeto, carinho e incentivos durante minha jornada. AGRADECIMENTOS Ao meu orientador, Prof. Dr. Lúcio Francelino Araújo, pela amizade, ensinamentos, confiança, incentivo, simpatia e presteza no auxílio às atividades e discussões sobre o andamento desta dissertação,

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Response of two broiler strains to four feeding regimens under hot climate

et al. 2016

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In total, 392 male broilers were randomly distributed in a factorial arrangement of 2 × 4, with two commercial broiler strains (Arbor Acres (AA) and Hubbard (Hub)) and four (NRC, Degussa, CVB, and strain guides) different feeding regimens (FR), totaling eight treatments and seven replicates, with seven broilers in each one. The following parameters were evaluated: bodyweight gain (BWG), feed intake (FI), feed conversion ratio (FCR), carcass yield, meat quality, nutrient intake, and its correlation with BWG. Interaction strain type × FR was significant for BWG, FI, and FCR, with the AA broilers showing higher BWG and FI and lower FCR than the Hub broilers. There was no difference in BWG, FI, and FCR of the AA broilers regardless of FR they were on, but the Hub broilers had lower BWG when they were fed according to the Degussa and CVB regimens; BWG and FCR were negatively affected. During the starter phase, BWG of the AA broilers was significantly correlated with feed, metabolisable energy (ME), lysine, and sulfur amino acids (SAA) intake. However, BWG was correlated with feed and ME intake and feed intake from 1 to 31 and from 1 to 42 days of age, respectively. In the Hub chicks, ME and crude protein intake and lysine and SAA intake were inversely correlated with BWG from 1 to 31 days and from 1 to 42 days of age, respectively. There was no significant effect of FR on dressed carcass weight or relative gizzard, pancreas, and liver weights and on intestinal weight; however, abdominal fat and spleen differed significantly with FR. Strain type significantly affected the relative weight of the intestines. There was no significant effect of FR and/or strain type on meat moisture, crude protein, lipid and ash content, or pH, colour, meat juiciness and tenderness (meat softness). In conclusion, AA strain of broiler performed better than the Hub strain under the different FR in all the evaluated production phases, but neither FR nor strain type affected carcass characteristics.

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Efeito de dois programas de alimentação sobre o desempenho e o rendimento de carcaça de duas marcas comerciais de frangos de corte

Cited by 5 publications

References 0 publications

Estudos de programas nutricionais alternativos na dieta de frangos de corte com o uso do grão inteiro de sorgo

Estudos de programas nutricionais alternativos na dieta de frangos de corte com o uso do grão inteiro de sorgo

Nutrição pós-eclosão de frangos de corte

Response of two broiler strains to four feeding regimens under hot climate

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