Título
In vitro gas and methane production of two mixed rations influenced by three different cultures of Saccharomyces cerevisiae
Autor
Abdelfattah Zeidan Mohamed Salem
MONA MOHAMED MOHAMED YASSEEN ELGHANDOUR
Ahmed E. Kholif
MOISES CIPRIANO SALAZAR
LUIS MIGUEL CAMACHO DIAZ
OFELIA MARQUEZ MOLINA
Nivel de Acceso
Acceso Abierto
Materias
Resumen o descripción
One of the most important problems facing ruminant production is the losing of energy and high biological value proteins as a result of ruminal fermentation. This may cause a limited productive performance (Kholif et al. 2014; Ahmed et al. 2016) and release of pollutants to the environment (Calsamiglia et al. 2007). Ionophores and antibiotics have good results to reduce these losses in energy and protein (McGuffey et al. 2001); however, the European Union banned the use of them due to the potential of appearance of residues in milk or meat (Russell and Houlihan 2003). Nowadays, researches are concerning the use of natural feed additives, generally recognized as safe for human consumption, including phytogenic extracts (Valdes et al. 2015), enzymes (Alsersy et al. 2015) or Saccharomyces cerevisiae (SC) (Elghandour, Salem et al. 2015) to modify rumen microbial fermentation.
The current study aimed to evaluate if the effect of Saccharomyces cerevisiae (SC) on in vitro fermentation can be affected with the crude protein (CP) content of the ration. Three commercial SC cultures of Biocell F53®, Procreatin 7®, and Biosaf SC47® were evaluated at 0 (SC0), 2 (SC2), and 4 (SC4) mg/g dry matter (DM) of substrate. Two rations with 13% (low crude protein [LCP]) and 16% CP (high crude protein [HCP]) were used as substrates. Rumen gas (gas production [GP]) and methane (CH4) productions were recorded. The HCP ration had increased (P = .05) asymptotic GP, CH4 production, and fermentation parameters. Biocell F53® and Biosaf SC47® increased the asymptotic GP (P < .05) in HCP and LCP rations with better effect for the dose of 2 mg/g DM substrate HCP (P < .05) and dose of 4 mg yeast/g DM substrate with the LCP ration. The highest CH4 production was observed (P < .05) with Procreatin 7®. It could be concluded that HCP ration improved GP than LCP ration. Moreover, addition of Biocell F53® and Biosaf SC47® at rate of 2 mg/g DM improved fermentation kinetics and nutrients degradability
Editor
Taylor and Francis
Fecha de publicación
5 de julio de 2016
Tipo de publicación
Artículo
Recurso de información
Fuente
0971-2119
Idioma
Inglés
Relación
No.;45
No.;1
Audiencia
Estudiantes
Investigadores
Repositorio Orígen
REPOSITORIO INSTITUCIONAL DE LA UAEM
Descargas
280