The Influence of Some Nutritional Factors and of Some Biophysical Parameters on the Ruminal Fluid Infusorians

Iuliana Creţescu, Liliana Cărpinisan, Dan Drinceanu, Rodica Căpriţă, Gabi Dumitrescu, Liliana Petculescu, Mihaela Petcu, Mihaela Bădiliţă

Abstract


The microflora and the microfauna that inhabit the stomach compartments, develop under conditions of physiological constants closely related, under the control of regulating mechanisms such as: the thermoregulator system, anaerobiosis condition, nutrient substrate, ionic composition, (pH) buffer system. Any change in these constants leads to a decrease or increase of microorganisms. The experiment had in view to study the influence of Yea Sacc1026 yeast on ruminal infusorians, on some biophysical parameters and the correlations between them. In all experimental variants, the protozoa density was higher than in the control sample and the amount of small protozoa, like Entodinium, with over 95% of the total protozoa. It was ascertained that for all experimental variations there are very small fluctuations between viability values and depending on the time of harvest, the medium viability values was close. When yeast was present in the feed ration, the density of protozoa has a moderate influence on the pH of ruminal fluid (R = 0.7056).


Keywords


rumen; sheep; protozoa; yeast

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Scientific Papers Animal Science and Biotechnologies publish open access articles under the terms of the Creative Commons Attribution 4.0 Licence (read full legal code).


LUCRARI STIINTIFICE ZOOTEHNIE SI BIOTEHNOLOGII (SCIENTIFIC PAPERS ANIMAL SCIENCE AND BIOTECHNOLOGIES)

ISSN print 1841 - 9364
ISSN online 2344 - 4576
ISSN-L  1841 - 9364
(former ISSN 1221-5287, E-ISSN 1841-9364)

PUBLISHER: AGROPRINT Timisoara, Romania
PAPER ACCESS: Full text articles available for free
FREQUENCY: Semiannual
PUBLICATION LANGUAGE: English
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Banat´s University of Agricultural Sciences and Veterinary Medicine "King Michael I of Romania" from Timisoara
Faculty of Animal Science and Biotechnologies
300645, Timişoara, Calea Aradului 119, Romania

E-mail: spasb [at] animalsci-tm.ro
Phone: +40-256-277160, Fax.: +40-256-277110