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Descripción
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| A trial was conducted to determine the coefficient of ileal apparent (CIAD) and ileal true digestibility (CITD) of amino acids (AA) of raw pea protein concentrate (PPC), soy protein concentrate (SPC), soybean meal (SBM), and fullfat soybean (FFSB) in 21-day-old broilers. The experiment was conducted as a completely randomized block design with 4 treatments and 6 replicates (6 chicks) per treatment. The diets were based on corn starch and sucrose and the test ingredient was the unique source of CP (200 g/kg). In addition, a nitrogen free diet was formulated to estimate basal ileal endogenous losses of the AA. Chicks were fed a commercial corn-SBM diet from 1 to 17 days and then, they received their respective experimental diets from 18 to 21 days of age ad libitum in mash form. Chicks fed SPC and SBM had higher CIAD of most AA (0.869 and 0.873 vs. 0.838 and 0.847 for arginine; 0.892 and 0.899 vs. 0.840 and 0.871 for methionine and 0.880 and 0.874 vs. 0.833 and 0.854 for valine; P ¡Ü 0.05) than chicks fed PPC with chicks fed FFSB being intermediate. In addition, chicks fed SPC, SBM, and FFSB had higher CIAD of threonine and isoleucine than chicks fed SPC (P ¡Ü 0.05). Chicks fed SBM had higher CITD of CP (0.907 vs. 0.885, 0.900, and 0.894; P ¡Ü 0.05) and leucine (0.928 vs. 0.886, 0.901, ABSTRACTS OF PAPERS 93 and 0.915; P ¡Ü 0.05) than chicks fed FFSB with chicks fed PPC and SPC being intermediate. Also, chicks fed SBM had higher CITD of methionine (0.938 vs. 0.887, 0.927, and 0.908; P ¡Ü 0.01) than chicks fed PPC with chicks fed SPC and FFSB being intermediate. It is concluded that apparent ileal digestibility of amino acids are higher for soybean protein concentrate and soybean meal than for pea protein concentrate with fullfat soybean being intermediate. However, under current cost of ingredients, the replacement of soybean meal by pea protein or soy protein concentrate in broiler diets to improve protein digestibility is not justified. | |
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Internacional
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Si |
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Nombre congreso
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97th Poultry Science Annual Meeting |
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Tipo de participación
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960 |
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Lugar del congreso
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Ni?¢gara Falls, Canad?¢ |
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Revisores
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Si |
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ISBN o ISSN
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1525-3171 |
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DOI
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Fecha inicio congreso
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20/07/2009 |
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Fecha fin congreso
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23/07/2008 |
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Desde la página
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295 |
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Hasta la página
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295 |
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Título de las actas
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Poultry Science |