Digestibilidade e atividade enzimática intestinal de coelhos em crescimento alimentados com diferentes fontes de amido processadas ou não por extrusão

Otutumi, Luciana Kazue; Furlan, Antônio Cláudio; Scapinello, Cláudio; Martins, Elias Nunes; Peralta, Rosane Marina; Souza, Dione Lopes de; Santolim, Mauricio L. R.

doi:10.1590/s1516-35982005000200025

Cited by 4 publications

(1 citation statement)

References 11 publications

(14 reference statements)

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“…The improvement in the digestibility of starch can be explained by the positive effects promoted by the extrusion process, which allow the beneficial physical changes of the starch granules, causing structural disorganization, with higher solubility in water and high absorption capacity due to the gelatinization and dextrinization (Grossmann et al, 1988;Svihus et al, 2005), making the nutrients more accessible to enzymatic digestion (Otutumi et al, 2005).…”

Section: Resultsmentioning

confidence: 99%

Corn types with different nutritional profiles, extruded or not, on piglets (6 to 15 kg) feeding

et al. 2011

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-Two experiments were carried out to determine the nutritional value and verify piglets' performance in the nursery phase fed with diets containing common corn (CC), extruded common corn (ECC), high-lysine corn (HLC), extruded high-lysine corn (EHLC), high-oil corn (HOC) and extruded high-oil corn (EHOC). In the total digestibility trial 14 barrows averaging 6.49 ± 0.16 kg initial body weight were allotted in metabolism cages, distributed in a randomized design with seven diets, six replicates, and one piglet per experimental unit. The values of digestible energy (DE), as well as metabolizable energy (ME) as-fed basis for CC, ECC, HLC, EHLC, HOC and EHOC were: 3,428 and 3,327 kcal/kg; 3,439 and 3,355 kcal/kg; 3,533 and 3,414 kcal/kg; 3,515 and 3,427 kcal/kg; 3,483 and 3,377 kcal/kg; 3,585 and 3,482 kcal/kg, respectively. In the performance experiment, 84 piglets, weaned at 21 days old, initial live weight of 6.06 ± 0.54 kg were used. Animals were allotted in a completely randomized design in a 3 × 2 factorial arrangement, using three types of corn (CC, HLC and HOC), two forms of processing (processed or not by extrusion), seven replicates and two piglets per experimental unit. Six diets containing CC, ECC, HLC, EHLC, HOC and EHOC were studied. There were no advantages in the digestibility and performance by extruding the types of corn with different nutritional profiles, for their use in commercial diets for piglets. The results of the two experiments emphasize the importance of segregating the types of corn, extruded or not, in their real chemical and energetic composition as well as the values of true digestible amino acids for the formulation of piglet diets in the nursery phase.

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Section: Resultsmentioning

confidence: 99%

Corn types with different nutritional profiles, extruded or not, on piglets (6 to 15 kg) feeding

et al. 2011

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Silagem de grão úmido de milho na alimentação de coelhos em crescimento

et al. 2011

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RESUMO Dois experimentos foram realizados para determinar o valor nutritivo da silagem de grãos úmidos de milho (SGUM) e avaliar os efeitos da substituição gradativa do milho seco das rações pela ABSTRACT Digestibility and performance experiments were carried out to evaluate the nutrients digestibility coefficients of high moisture corn silage (HMCS) and the gradative replacing (0, 25, 50, 75 and 100%)

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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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Digestibilidade e atividade enzimática intestinal de coelhos em crescimento alimentados com diferentes fontes de amido processadas ou não por extrusão

Cited by 4 publications

References 11 publications

Corn types with different nutritional profiles, extruded or not, on piglets (6 to 15 kg) feeding

Corn types with different nutritional profiles, extruded or not, on piglets (6 to 15 kg) feeding

Silagem de grão úmido de milho na alimentação de coelhos em crescimento

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

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