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| Silva,Eliane Aparecida da; Albino,Luiz Fernando Teixeira; Rostagno,Horacio Santiago; Ribeiro Junior,Valdir; Vieira,Rodolfo Alves; Campos,Anastácia Maria de Araújo; Messias,Rodrigo Knop Guazzi. |
| The objective of this study was to estimate the values of apparent metabolizable energy and apparent metabolizable energy corrected for nitrogen balance and determine the chemical composition of the following feedstuffs: babassu meal, sunflower meal, corn gluten meal, babassu starch flour, meat and bones meal, beans, millet, cookies residue, pasta residue and bread-making residue. The traditional method of excreta collection was used with broilers in the period of 14 to 24 days of age, which were distributed in a completely randomized design with eleven treatments and six replicates of six birds each. Each feedstuff replaced the reference diet at levels of 30 or 40% depending on the type of feedstuff. Chicks were housed in cages fitted with trays to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Agroindustrial residues; Metabolizable energy corrected; Nitrogen balance. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000300026 |
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| Viana,Maurício Tárcio dos Santos; Albino,Luiz Fernando Teixeira; Rostagno,Horacio Santiago; Silva,Eliane Aparecida da; Vieira,Rodolfo Alves; Ribeiro Junior,Valdir. |
| Objetivou-se avaliar o efeito da adição da enzima xilanase (Econase XT25) sobre o metabolismo de nutrientes e o desempenho de poedeiras no período de 24 a 48 semanas de idade. Foram utilizadas 288 poedeiras, distribuídas em delineamento experimental inteiramente casualizado em arranjo fatorial 2 × 2, com dois níveis de energia metabolizável (2.900 e 2.755 kcal/kg) combinados ou não com a adição de xilanase (37,5 g/t de ração), totalizando quatro tratamentos (controle positivo; controle negativo; controle positivo + xilanase; e controle negativo + xilanase), avaliados com 12 repetições de 6 aves por unidade experimental. As dietas controle positivo e controle positivo + xilanase foram formuladas seguindo as recomendações das Tabelas Brasileiras (100% de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Desempenho; Energia metabolizável; Enzimas; Metabolismo; Poedeiras. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000200021 |
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| Bünzen,Silvano; Rostagno,Horacio Santiago; Kiefer,Charles; Teixeira,Alexandre de Oliveira; Ribeiro Junior,Valdir. |
| Este estudo foi conduzido com o objetivo de determinar a exigência de fósforo digestível de suínos em crescimento. Foram utilizados 70 suínos mestiços (35 machos castrados e 35 fêmeas), com peso médio inicial de 29,72±1,52 kg, distribuídos em delineamento de blocos casualizados, com cinco tratamentos, sete repetições e dois animais (um macho e uma fêmea) por unidade experimental. O experimento teve duração de 21 dias. Os tratamentos consistiram de rações à base de milho e farelo de soja suplementadas com fosfato bicálcico, correspondendo a cinco níveis de fósforo digestível (0,19; 0,25; 0,30; 0,35 e 0,40%). Para cada nível de fósforo estudado, foi adicionado calcário buscando manter constante a relação cálcio:fósforo das dietas. O aumento dos níveis de... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cálcio e fósforo; Digestibilidade verdadeira; Exigência. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000200013 |
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| Lelis,Guilherme Rodrigues; Albino,Luiz Fernando Teixeira; Calderano,Arele Arlindo; Tavernari,Fernando de Castro; Rostagno,Horacio Santiago; Campos,Anastácia Maria de Araújo; Araújo,Wagner Azis Garcia de; Ribeiro Junior,Valdir. |
| The assay was carried out to determine the effect of phytase supplementation on performance of broilers from 1 to 21 and 1 to 40 days of age. Twelve hundred and fifty male broilers (Ross) were distributed in a randomized experimental design, with five treatments, 10 repetitions and 25 birds per experimental unit. The treatments consisted of evaluating the phytase supplementation in diets with reductions in nutritional levels, compared with the positive control. The nutrient contents in negative controls one and two were reduced progressively and these diets were supplemented with phytase levels of 250 and 500 ftu/kg of the diet, respectively. Two diets were formulated: pre-starter/starter, 1-21 days, and growth/finishing, from 21 to 40 days). In both... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Diet; Productive efficiency index; Weight gain. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000400014 |
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| Silva,Eliane Aparecida da; Albino,Luiz Fernando Teixeira; Rostagno,Horacio Santiago; Vieira,Rodolfo Alves; Ribeiro Junior,Valdir; Campos,Anastácia Maria de Araújo; Pereira,João Paulo Leles. |
| The objective of this study was to estimate the true digestibility coefficients of amino acids and digestible amino acid values of some poultry feedstuffs. The feedstuffs were: babassu meal, sunflower meal, corn gluten meal, babassu starchy meal, meat and bone meal, common beans, pearl millet and residues of cookies, pasta and bread. The precise feeding method of Sibbald was used with adult cecectomized Leghorn roosters distributed in a completely randomized design, consisting of ten treatments and six replications with a rooster in each. The treatments were represented by the feedstuffs evaluated. The roosters were kept in a period of fasting for 36 hours and then fed 30 grams of feed. Samples were collected during 56 hours. Simultaneously, six roosters... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Amino acids; Digestibility; Poultry. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982012000900015 |
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| Faria,Bruno Damaceno; Silva,Leandro Moreira; Ribeiro Junior,Valdir; Ferreira,Adriana Helena do Nascimento; Rostagno,Horacio Santiago; Albino,Luiz Fernando Teixeira; Hannas,Melissa Izabel. |
| ABSTRACT: This study was undertaken to evaluate the effects of dietary calcium levels and supplementation with organic trace minerals selenium, copper, iron, zinc and manganese on performance, tissue deposition and litter mineral concentration. A total of 2,496 one-day-old male Cobb 500 broilers were randomly assigned to a 3 × 4 factorial experimental design with three levels of dietary Ca [8, 10 and 12 g kg–1, while maintaining the same Ca:nPP (non-phytate phosphorus) ratio (2:1)] and four levels of micromineral supplementation (0.62, 0.72, 0.82 and 0.92 g kg–1). There was a total of 12 treatments, with eight replicates of 26 birds per pen. Micromineral supplementation (MS) was achieved by adding different levels of the product Bioplex TR Se® and Ca... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Chicken; Micromineral; Tibia; Breast muscle. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162020000100401 |
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