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	<dc:title xml:lang="en-US">Saccharomyces cerevisiae hydrolyzate: its effect on the in vitro ruminal microbial population of star grass (cynodon nlemfuensis)</dc:title>
	<dc:title xml:lang="es-ES">Hidrolizado de saccharomyces cerevisiae: su efecto en la población microbiana ruminal in vitro de pasto estrella (cynodon nlemfuensis)</dc:title>
	<dc:creator>Galindo, Juana</dc:creator>
	<dc:creator>González, Niurca</dc:creator>
	<dc:creator>Marrero, Yoandra</dc:creator>
	<dc:creator>Rodríguez, Marlen</dc:creator>
	<dc:creator>Herrera, Magaly</dc:creator>
	<dc:subject xml:lang="en-US">cellulolytic</dc:subject>
	<dc:subject xml:lang="en-US">fungi</dc:subject>
	<dc:subject xml:lang="en-US">proteolytic</dc:subject>
	<dc:subject xml:lang="en-US">PROBIOLEV ®</dc:subject>
	<dc:subject xml:lang="en-US">total bacteria</dc:subject>
	<dc:subject xml:lang="es-ES">bacterias totales</dc:subject>
	<dc:subject xml:lang="es-ES">celulolíticas</dc:subject>
	<dc:subject xml:lang="es-ES">hongos</dc:subject>
	<dc:subject xml:lang="es-ES">proteolíticas</dc:subject>
	<dc:subject xml:lang="es-ES">PROBIOLEV ®</dc:subject>
	<dc:description xml:lang="en-US">An experiment was carried out with the hydrolyzate of Saccharomyces cerevisiae, registered as PROBIOLEV®, obtained in Cuba from the hydrolysis of distillery cream from the enzymatic crude of Bacillus subtilis E-44, to determine its effect on the ruminal microbial population of star grass (C. nlemfuensis). The in vitro gas production technique was applied, with modifications according to the proposed objective. Three treatments were established: A) star grass control, B) star grass + yeasts cream and C) star grass + yeasts hydrolyzate. The doses of cream and hydrolyzate were 100 mL/kg of concentrate/day, equivalent to 130 mg of (β 1.3) glucan/kg of concentrate. Samplings were done before incubation, and at 3 and 6 hours after incubation. The hydrolyzate activated the total bacterial populations (P=0.0088) by 62 %, which corresponds to 19.36 x 1011 CFU/mL more of bacteria, which means an increase in bacterial biomass. Cellulolytic bacteria were more numerous (P=0.0042) and the total number of cellulolytic fungi increased (P=0.0009) with the hydrolyzate. There was no effect of time on the total viable bacteria, cellulolytic bacteria and cellulolytic fungi. It is concluded that the hydrolyzate produces changes in the ruminal population, increasing the population of total viable bacteria, bacteria and cellulolytic fungi, an event that could favor the degradation of the fiber contained in the star grass.</dc:description>
	<dc:description xml:lang="es-ES">Se realizó un experimento con el hidrolizado de Saccharomyces cerevisiae, registrado como PROBIOLEV®, obtenido en Cuba de la hidrólisis de la crema de destilería a partir del crudo enzimático de Bacillus subtilis E-44, para determinar su efecto en la población microbiana ruminal de pasto estrella (C. nlemfuensis). Se aplicó la técnica de producción de gases in vitro, con modificaciones según el objetivo propuesto. Se establecieron tres tratamientos: A) control de pasto estrella, B) pasto estrella + crema de levaduras y C) pasto estrella + hidrolizado de levaduras. Las dosis de crema e hidrolizado fueron 100 mL/kg de concentrado/día, equivalente a 130 mg de (β 1,3) glucano/kg de concentrado. Los muestreos se hicieron antes de incubar, y a las 3 y 6 horas después de la incubación. El hidrolizado activó las poblaciones totales de bacterias (P=0.0088) en 62 %, lo que corresponde a 19.36 x 1011 UFC/mL más de bacterias, lo que significa incremento en biomasa bacteriana. Las bacterias celulolíticas fueron más numerosas (P=0.0042) y el número total de hongos celulolíticos se incrementó (P=0.0009) con el hidrolizado. No hubo efecto del tiempo en las bacterias viables totales, celulolíticas y hongos celulolíticos. Se concluye que el hidrolizado produce cambios en la población ruminal, incrementa la población de bacterias viables totales, bacterias y hongos celulolíticos, evento que pudiera favorecer la degradación de la fibra contenida en el pasto estrella.</dc:description>
	<dc:publisher xml:lang="en-US">Instituto de Ciencia Animal</dc:publisher>
	<dc:date>2024-12-10</dc:date>
	<dc:type>info:eu-repo/semantics/article</dc:type>
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	<dc:identifier>https://cjascience.com/index.php/CJAS/article/view/1152</dc:identifier>
	<dc:source xml:lang="en-US">Cuban Journal of Agricultural Science; Vol. 58 (2024): January-December; https://cu-id.com/1996/v58e18</dc:source>
	<dc:source xml:lang="es-ES">Cuban Journal of Agricultural Science; Vol. 58 (2024): January-December; https://cu-id.com/1996/v58e18</dc:source>
	<dc:source>2079-3480</dc:source>
	<dc:source>0864-0408</dc:source>
	<dc:language>eng</dc:language>
	<dc:language>spa</dc:language>
	<dc:relation>https://cjascience.com/index.php/CJAS/article/view/1152/1705</dc:relation>
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	<dc:relation>https://cjascience.com/index.php/CJAS/article/view/1152/1709</dc:relation>
	<dc:rights xml:lang="en-US">Copyright (c) 2024 This article is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License (CC BY-NC 4.0)</dc:rights>
	<dc:rights xml:lang="en-US">https://creativecommons.org/licenses/by-nc/4.0/deed.es_ES</dc:rights>
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