RESUMO A utilização da torta de girassol (TG) na alimentação animal vem sendo estudada principalmente devido às características que lhes são conferidas, pois esse subproduto quando incorporado na ração pode aumentar a viabilidade econômica e o valor nutricional da dieta. O objetivo deste trabalho foi avaliar a inclusão da torta de girassol (TG) em dietas para frangas leves sobre a digestibilidade dos nutrientes e energia metabolizável das dietas, desempenho, composição corporal, retenção de nutrientes, metabolismo energético na fase de crescimento e desempenho na produção de ovos, maturidade sexual e qualidade dos ovos no início da fase de postura. Um total de 648 frangas foram distribuídas em um delineamento inteiramente casualizado com 6 tratamentos e 6 repetições de 18 frangas cada. Os tratamentos consistiram em dietas contendo níveis de inclusão de 0, 5, 10, 15, 20 e 25% TG. Os autores concluíram que as frangas alimentadas com dietas contendo TG apresentaram redução (P<0,01) na digestibilidade dos nutrientes e da energia metabolizável em comparação com aquelas alimentadas com a dieta controle. As frangas alimentadas com 25% TG apresentaram aumento (P<0,01) no consumo de ração e na conversão alimentar. A inclusão de TG nas dietas não influenciou (P>0,05) a composição corporal, a retenção de nutrientes e o metabolismo energético, bem como a maturidade sexual, desempenho produtivo e qualidade dos ovos das poedeiras de 18 a 35 semanas de idade. A TG pode ser incluída até 25% na dieta de frangas leves na fase de crescimento, sem efeito residual no desempenho produtivo no início da fase de postura.

ABSTRACT The use of sunflower cake (SC) in animal feed has been studied mainly due to the characteristics that are given to them, since this by-product when incorporated in the feed can increase the economic viability and the nutritional value of the diet. The objective of this study was to evaluate the inclusion of sunflower cake in lightweight pullet diets and check their nutrient digestibility and metabolizable energy for several parameters, including diet, performance, body composition, nutrient retention, energy metabolism at the growth phase, performance of egg production, sexual maturity, and egg quality at the beginning of the laying phase. We distributed a total of 648 pullets in our study, which was a completely randomized design including six treatments with six replicates of 18 pullets each. The treatments included diets with 0, 5, 10, 15, 20, and 25% SC. Our study results concluded that pullets fed with diets containing SC showed a reduction (P<0.01) in nutrient digestibility and metabolizable energy compared to those fed with the control diet. Pullets fed with 25% SC showed an increase (P<0.01) in feed intake and feed conversion ratio. However, dietary inclusion of SC in pullet diets did not influence (P>0.05) their body composition, nutrient retention, energy metabolism, sexual maturity, egg-laying performance, and egg quality of laying hens between 18 and 35 weeks of their age. Therefore, up to 25% of SC could be included in the diet of lightweight laying pullets in the growth phase since it exhibited no residual effect on their productive performance at the beginning of the laying phase.

ABSTRACT The objective of this study was to evaluate the oxidative stability of cashew nut meal (CNM) at 180 days of storage and the effects of its use in the feed of meat quails. A total of 280 animals at seven days of age, of both sexes, were distributed in a completely randomized design with five treatments, in a 2 × 2 + 1 factorial arrangement, and seven replicates of eight birds each. The treatments were a control diet without CNM and diets containing levels of 12.5 or 25% of new CNM (NCNM) or stored for 180 days (SCNM). The lipid oxidation of the brans was evaluated by determining the acidity index and peroxide index. The parameters evaluated were the quail performance, metabolizable coefficients and energy of diets, carcass characteristics, relative weights of the liver and pancreas, and bone parameters. The acidity of cashew nut meal was 4.66% and 6.16 (% in oleic acid) for NCNM and SCNM, respectively. Independent of the storage, inclusion of CNM resulted in higher metabolizable energy values in the diet, reduced intake, and, because weight gain did not vary, feed conversion improved compared with the control treatment. Carcass traits, relative weights of liver and pancreas, as well as bone growth and quality were not affected by dietary treatments. Despite the hydrolytic rancidity, CNM can be used in the diets for meat quails at up to 25% of inclusion.

<p>O sorgo é utilizado como fonte de energia alternativa ao milho, no entanto, seu baixo teor de pigmentos é considerado entrave na utilização desse ingrediente para aves. A inclusão do resíduo da semente do urucum (ASB) pode solucionar esse problema. Nesse contexto, objetivou-se avaliar o efeito da inclusão do ASB em rações contendo sorgo como principal fonte de energia sobre o desempenho, características de carcaça, coloração da carne e viabilidade econômica na produção de frangos de corte de crescimento lento. Foram utilizados 420 pintos sexados da linhagem carijó pesadão, distribuídos em delineamento inteiramente casualizado, segundo o esquema fatorial 2 × 7, com 3 repetições de 10 aves por tratamento. Os fatores estudados foram 2 sexos (machos e fêmeas) e 7 rações, sendo uma ração composta por milho como fonte de energia e as demais contendo sorgo e a inclusão de 0; 3; 6; 9; 12; e 15 % do ASB. Independente do sexo, as rações não influenciaram o consumo de ração (g/ave), ganho de peso (g/ave), conversão alimentar (g/g), rendimento (%) de carcaça, peito, coxa+sobrecoxa, porcentagem de gordura abdominal e peso relativo do fígado. Entretanto, a inclusão do ASB influenciou os parâmetros de cor da carne, tornando-a mais pigmentada, e melhorou os parâmetros de viabilidade econômica. Em rações para aves de crescimento lento contendo sorgo como principal fonte de energia, pode-se incluir até 15% do ASB, sendo possível reduzir os problemas de pigmentação da carne, em decorrência da substituição total do milho pelo sorgo com a inclusão do ASB a partir de 3%.</p>

<p>Sorghum is used as a source of energy alternative to corn, however, its low pigments content are considered hindrance to the use of this feedstuff for poultry. The inclusion of annatto seed by-product (ASB) may solve this problem. In this context, the objective of this study was to evaluate the effect of ASB inclusion in diets containing sorghum as the main source of energy on performance, carcass traits, meat color, and economic viability in the production of slow-growth broilers. A total of 420 sexed chicks of the Carijó Pesadão line were distributed in a completely randomized design according to a 2 × 7 factorial arrangement, with three replicates of 10 birds per treatment. Studied factors were two sexes (males and females) and seven diets, wherein one had corn as source of energy and the others contained sorghum plus inclusion of 0, 3, 6, 9, 12, and 15% of ASB. Irrespective of the sex, diets did not affect feed intake (g/bird), feed conversion (g/g), yields (%) of carcass, breast and drumstick+thigh, percentage of abdominal fat, or relative weight of the liver. However, the inclusion of ASB influenced the color parameters of the meat making it more pigmented and improved the economic viability parameters. In diets for slow-growth birds containing sorghum as the main source of energy, ASB can be included up to 15%, and meat pigmentation problems can be reduced with total substitution of corn by sorghum with inclusion of ASB from 3%.</p>