2017
DOI: 10.15517/ma.v28i2.25643
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Digestión de materia seca, proteína cruda y aminoácidos de la dieta de vacas lecheras

Abstract: © 2017 Agronomía Mesoamericana es desarrollada en la Universidad de Costa Rica y se encuentra licenciada con Creative Commons Reconocimiento-NoComercial-SinObraDerivada 3.0 Costa Rica. Para más información escríbanos a pccmca@ucr.ac.cr ResumenEl objetivo de este trabajo fue determinar la digestión de materia seca (MS), proteína cruda (PC) y aminoácidos (AA) en vacas lecheras. Fueron utilizadas dos vacas canuladas para la medición de la tasa de pasaje (Kp), la degradabilidad ruminal (DR) in situ y la digestibil… Show more

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Cited by 2 publications
(1 citation statement)
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“…When the intake of degradable protein is high, or the input of degradable carbohydrates is low, the level of ammonium in the rumen increases and exceeds the amount that bacteria can utilize; when there is excess ammonium, it passes to the liver through the blood, where it is transformed and eliminated, resulting in increased urea levels in the blood (Arias and Nesti, 1999). The NRC (2001) points out that a low ratio between methionine and lysine in the diet may have an impact on the decrease of urea concentration in dairy cattle, the Lis: Met ratio should be 3:1, so that the requirements of these two amino acids are covered mainly in diets based on corn silage, such as the diet of this study (Duque-Quintero et al, 2017). The supplementation with BIO or OP supplementation does not have a significative effect on plasma cholesterol levels in Holstein cows.…”
Section: Advances In Animal Andmentioning
confidence: 99%
“…When the intake of degradable protein is high, or the input of degradable carbohydrates is low, the level of ammonium in the rumen increases and exceeds the amount that bacteria can utilize; when there is excess ammonium, it passes to the liver through the blood, where it is transformed and eliminated, resulting in increased urea levels in the blood (Arias and Nesti, 1999). The NRC (2001) points out that a low ratio between methionine and lysine in the diet may have an impact on the decrease of urea concentration in dairy cattle, the Lis: Met ratio should be 3:1, so that the requirements of these two amino acids are covered mainly in diets based on corn silage, such as the diet of this study (Duque-Quintero et al, 2017). The supplementation with BIO or OP supplementation does not have a significative effect on plasma cholesterol levels in Holstein cows.…”
Section: Advances In Animal Andmentioning
confidence: 99%