Valor nutricional do milho termicamente processado, usado na ração pré-inicial para frangos de corte

Freitas, Ednardo Rodrigues; Sakomura, Nilva Kazue; Neme, Rafael; Barbosa, N. A. A.

doi:10.1590/s0102-09352005000400012

Cited by 6 publications

(8 citation statements)

References 5 publications

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“…Low animal consumption in an area of high edge proportion, such as gallery forests in Franca, is contrary to the expectation of high insect abundance at forest edges, as reported in the general literature (GOBBI & ZUCCHI 1985, FOWLER et al 1993, DIDHAM 1997. It is possible that this reduced insect proportion in the diet is in part compensated for by the high consumption of maize, due to its elevated protein and sodium content (9.3% protein;FREITAS et al 2005).…”

Section: Discussionmentioning

confidence: 99%

Agricultural crops in the diet of bearded capuchin monkeys, Cebus libidinosus Spix (Primates: Cebidae), in forest fragments in southeast Brazil

et al. 2008

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Capuchin monkeys occupy a wide range of habitats where they feed on fruits, arthropods, and vertebrates. Their large home ranges (80-900 ha) suggest that living in forest fragments may challenge their adaptability. We identified and quantified the main food items of Cebus libidinosus Spix, 1823 in forests fragments (100 ha) in southeastern Brazil. We recorded the feeding activities of two groups using scan sampling over a 13-month period. The diet was composed of fruits, crops, animal prey, seeds, plant matter and undetermined. Fruit was eaten more in the wet season than in the dry season, and maize and sugar cane consumption peaked in the early dry season. The proportion of fruit in the diet was positively correlated with fruiting intensity of zoochorous trees. The plant diet included 54 species, with maize, Rhamnidium elaeocarpus, Acrocomia aculeata, Guazuma ulmifolia and Cariniana, being most important. Although dietary composition and diversity were similar to capuchins in larger forest fragments, feeding on crops attained higher percentages at times when zoochorous fruit production was low in fragments.

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Section: Discussionmentioning

confidence: 99%

Agricultural crops in the diet of bearded capuchin monkeys, Cebus libidinosus Spix (Primates: Cebidae), in forest fragments in southeast Brazil

et al. 2008

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“…Sakomura et al (2004) noted that greater levels of energy (3,350 kcal kg -1 ) provided better performance results for chickens; the 3,200 level kcal kg -1 promoted better balance in the use of energy for the deposition of protein and fat on the carcass. The improvement in performance associated with the supplementation of fat in the diet may be due to the extra caloric effect, namely, increased availability of nutrients of the feed ingredients, as well as the extra fat metabolic effect, which improves energy efficiency by increasing the net energy ration (FREITAS et al, 2005).…”

Section: Levels Of Metabolizable Energy and Digestible Lysine For Bromentioning

confidence: 99%

Levels of metabolizable energy and digestible lysine for broiler chicks 8-21 days of age

et al. 2015

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The experiment was conducted with the objective of evaluating the effect of metabolizable energy (ME) levels and digestible lysine (DL) levels on the performance of 8-21 days old broiler chicks. Eight hundred and sixty four broiler chicks were used, with average weight of 160 ± 5g, randomly distributed in 48 boxes (experimental unit), experimental unit in a factorial 4x4 with four levels of ME (2,700, 2,825, 2,950, and 3,075 kcal kg -1 ) and four levels of DL (1,080; 1,187; 1,295 and 1,403%) resulting in 16 treatments with three replications. Increases in levels of ME and DL in the diets caused significant interaction (P <0.05) in weight gain and feed conversion. Increasing levels of ME and DL caused significant interaction (P <0.05) for the deposition rate of protein and fat in the carcass. The simultaneous increases of ME and DL in the diet promoted a linear increase (P <0.05) in villus height of the duodenum, jejunum, and villous:crypt ileum. It is recommended the use of 3,075 kcal kg -1 ME and 1,403% of LD for best performance, protein deposition rate, and intestinal morphometric characteristics of 8-21 days old broiler chicks. Key words: Performance, broiler, intestinal morphology ResumoO experimento foi conduzido com o objetivo de avaliar o efeito dos níveis de energia metabolizável (EM) e de lisina digestível (LD) no desempenho de pintos de corte de 8 a 21 dias de idade. Foram utilizados 864 pintos de corte, com peso médio de 160 ± 5g, distribuídos em um delineamento inteiramente casualizado ao acaso, em 48 boxes (unidade experimental), e esquema fatorial 4x4 sendo quatro níveis de EM (2.700; 2.825; 2.950; e 3.075 kcal kg -1 ) e quatro níveis de LD (1,080; 1,187; 1,295 e 1,403%) resultando em 16 tratamentos com três repetições. Os aumentos dos níveis de EM e de LD nas rações promoveram interação (P<0,05) no ganho de peso, conversão alimentar, taxa de deposição de proteína

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“…Na avaliação desses dados de energia metabolizável, observaram-se valores inferiores aos descritos por Freitas et al (2005) para pintos de corte de 1 a 8 dias de idade para o milho processado (3 minutos a vácuo, retirada do oxigênio, e aquecimento de 63 a 107ºC, e vapor direto por 8 a 12 minutos) e o não-processado (3.537 versus 3.411 kcal EMAn/kg). Plavnik & Sklan (1995) deteriminaram incrementos de 1,5 para energia metabolizável aparente (EMA) e de 3,5% para energia metabolizável aparente corrigida pelo balanço de nitrogênio (EMAn).…”

Section: Resultsunclassified

“…Penz Jr. & Vieira (1998) afirmaram que, na primeira semana, a anatomia e fisiologia do aparelho digestório de pintos de corte difere da observada em aves com mais idade, por isso, suas necessidades nutricionais são diferentes, pelas dificuldades em digerir e absorver nutrientes. Freitas et al (2005), no entanto, constataram pior desempenho, com maior consumo e pior conversão alimentar na fase pré-inicial.…”

Section: Resultsunclassified

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Desempenho de pintos de corte alimentados com rações contendo milho pré-gelatinizado

Stringhini

Santos

Brito³

et al. 2009

R. Bras. Zootec.

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RESUMO -Foram conduzidos três experimentos para avaliar o valor nutricional do milho pré-gelatinizado para frangos de corte de 1 a 21 dias de idade. No primeiro experimento, avaliou-se o metabolismo do milho pré-gelatinizado, do amido e do gérmen de milho pelo método da colheita total de excretas no período de 4 a 7 dias de idade para determinação dos valores de energia metabolizável aparente e aparente corrigida, que foram de 3. 370, 3.379,7, 3.259,1 kcal/kg de EMA e 3.299,8, 3.369,7 e 3.051,6 kcal/kg de EMAn, para o milho pré-gelatinizado, o amido de milho e o gérmen de milho integral, respectivamente. No segundo e terceiro experimentos, utilizaram-se 200 pintos alimentados com rações pré-iniciais (fase de 1 a 7 dias de idade) e iniciais com 0, 20, 40 ou 60% de milho pré-gelatinizado em substituição ao milho-grão. O desempenho dos frangos no período de 1 a 7 dias não foi afetado pelos níveis de milho pré-gelatinizado na ração. Houve nesse período efeito quadrático sobre o coeficiente de digestibilidade da matéria seca (ponto de mínima de 28,6%) e do nitrogênio (ponto ABSTRACT -Three experiments were carried out to evaluate the performance and nutritional value of the extruded corn for broilers from one to 21 days of age. In the first experiment, the metabolism of pre-gelatinized corn, corn starch and corn germ meal was assessed by the total excreta collection method from 4 to 7 days of age and values of apparent (AME) and corrected metabolizable energy (CAME) and the results were, respectively: 3370, 3379.7, 3259.1 kcal/kg de AME and 3299.8, 3369.7, 3051.6 kcal/kg for CAME. The inclusion level of pre-gelatinized corn was evaluated in pre-starter (1 to 7 days of age -Experiment 2) and starter (8 to 21 days of age -Experiment 3) broiler rations. Broiler performance from one to seven days of age was not affected by pre-gelatinized corn in the feed. A quadratic effect for the dry matter digestibility coefficient (minimum point of 28.6% inclusion) and nitrogen (minimum point of 31.7% inclusion) and negative linear negative on the ether extract digestibility coefficient. From 8 to 21 days of age, broiler performance was affected linearly and negatively for final weight, weight gain and feed intake and quadratic for feed-to-gain ratio (maximum point of 34.3% inclusion). For the dry matter, nitrogen and ether extract digestibility coefficients, there was a positive linear effect for pre-gelatinized corn included in substitution of corn. Pre-gelatinized corn was a good alternative for pre-starter ration, but, in spite of the better digestibility coefficient results, performance got worse as pre-gelatinized corn increased in diets from 8 to 21 days of age. Pre-gelatinized corn was a good alternative as energetic ingredient for first week chick feed, but, in the starter phase it did not promote good performance despite the good digestibility indexes obtained.

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Valor nutricional do milho termicamente processado, usado na ração pré-inicial para frangos de corte

Cited by 6 publications

References 5 publications

Agricultural crops in the diet of bearded capuchin monkeys, Cebus libidinosus Spix (Primates: Cebidae), in forest fragments in southeast Brazil

Agricultural crops in the diet of bearded capuchin monkeys, Cebus libidinosus Spix (Primates: Cebidae), in forest fragments in southeast Brazil

Levels of metabolizable energy and digestible lysine for broiler chicks 8-21 days of age

Desempenho de pintos de corte alimentados com rações contendo milho pré-gelatinizado

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