Microbial protein synthesis in young steers fed with grass silage and extruded corn

Microbial protein synthesis is essential to meet protein requirements in ruminants. The aim of this investigation was to evaluate the effect of incorporating extruded corn (Zea mays L.) into the ration of young steers fed with grass silage on microbial protein synthesis (MPS). Twenty young steers in...

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Autores principales:	Barchiesi-Ferrari,Claudia, Anrique,René
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2012
Materias:	Purine derivatives extrusion allantoin microbial protein synthesis Zea mays
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400012
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spelling	oai:scielo:S0718-583920120004000122018-10-01Microbial protein synthesis in young steers fed with grass silage and extruded cornBarchiesi-Ferrari,ClaudiaAnrique,René Purine derivatives extrusion allantoin microbial protein synthesis Zea mays Microbial protein synthesis is essential to meet protein requirements in ruminants. The aim of this investigation was to evaluate the effect of incorporating extruded corn (Zea mays L.) into the ration of young steers fed with grass silage on microbial protein synthesis (MPS). Twenty young steers in metabolic cages were used for supplying food. The treatments consisted of combinations of extruded corn (EC) and ground corn (GC) EC-10 (10% EC-30% GC); EC-25 (25% EC-15% GC) and EC-40 (40% EC-0% GC). These foods constituted 40% of the ration (DM-based) and the remaining 60% was grass silage. The MPS was calculated through the excretion of purine derivatives (PD) in the urine, using total collection of urine. The inclusion of a higher percentage of extruded corn (EC-40) increased the PD excretion (51.85 mmol d-1, P < 0.05). The values of PD excretion ranged between 663 and 1078 μmol BW-075 d-1. The microbial protein absorption and flow of duodenal N also increased with a higher portion of extruded corn (EC-40, P < 0.05). The differences between treatments can be explained by the effect of corn extruding. This allows more energy available for ruminal bacteria and improved synchrony between energy and protein.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.72 n.4 20122012-12-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400012en10.4067/S0718-58392012000400012
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Purine derivatives extrusion allantoin microbial protein synthesis Zea mays
spellingShingle	Purine derivatives extrusion allantoin microbial protein synthesis Zea mays Barchiesi-Ferrari,Claudia Anrique,René Microbial protein synthesis in young steers fed with grass silage and extruded corn
description	Microbial protein synthesis is essential to meet protein requirements in ruminants. The aim of this investigation was to evaluate the effect of incorporating extruded corn (Zea mays L.) into the ration of young steers fed with grass silage on microbial protein synthesis (MPS). Twenty young steers in metabolic cages were used for supplying food. The treatments consisted of combinations of extruded corn (EC) and ground corn (GC) EC-10 (10% EC-30% GC); EC-25 (25% EC-15% GC) and EC-40 (40% EC-0% GC). These foods constituted 40% of the ration (DM-based) and the remaining 60% was grass silage. The MPS was calculated through the excretion of purine derivatives (PD) in the urine, using total collection of urine. The inclusion of a higher percentage of extruded corn (EC-40) increased the PD excretion (51.85 mmol d-1, P < 0.05). The values of PD excretion ranged between 663 and 1078 μmol BW-075 d-1. The microbial protein absorption and flow of duodenal N also increased with a higher portion of extruded corn (EC-40, P < 0.05). The differences between treatments can be explained by the effect of corn extruding. This allows more energy available for ruminal bacteria and improved synchrony between energy and protein.
author	Barchiesi-Ferrari,Claudia Anrique,René
author_facet	Barchiesi-Ferrari,Claudia Anrique,René
author_sort	Barchiesi-Ferrari,Claudia
title	Microbial protein synthesis in young steers fed with grass silage and extruded corn
title_short	Microbial protein synthesis in young steers fed with grass silage and extruded corn
title_full	Microbial protein synthesis in young steers fed with grass silage and extruded corn
title_fullStr	Microbial protein synthesis in young steers fed with grass silage and extruded corn
title_full_unstemmed	Microbial protein synthesis in young steers fed with grass silage and extruded corn
title_sort	microbial protein synthesis in young steers fed with grass silage and extruded corn
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2012
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392012000400012
work_keys_str_mv	AT barchiesiferrariclaudia microbialproteinsynthesisinyoungsteersfedwithgrasssilageandextrudedcorn AT anriquerene microbialproteinsynthesisinyoungsteersfedwithgrasssilageandextrudedcorn
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Microbial protein synthesis in young steers fed with grass silage and extruded corn

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