THE EFECT OF RUMINAL DEFAUNATION IN ESTABLISGHING THE ROLE OF THE INFUSORES IN RUMINAL PHYSIOLOGY

VIOARA MIRESAN, CAMELIA RADUCU, GH. STETCA

Abstract


This aspect of the ruminal digstion was studied with the aim of establishing the role of the protozoa in rumen, and for interfere in alteration of the mechanisms which determine the profile of the digstive intraruminal processes. The importance of the ruminal ciliates demonstrated by defaunation is obvious. Reducing their number it will be reduced the fermentation process in rumen, and also the fibre degradation. Defaunation emphasise the involving of ciliates in som important ruminal processes as the conversion of bacterial protein in protozoa protein with a higher digestibility. This paper presents the importance of the role of ciliates in ruminal biocenosys where they eventually act in a chain forage – ciliate – ruminal relation, process that is not entirely elucidated up the date. Defaunation represents too a method to clarify the role of ciliates. It can be realized in many ways: food and water privation, pH variation beyond the optimal limits, the suddenly change of any other condition, and by adding chemical substances. An important advantage of defaunation is the possibility of a single stain or species of ciliate refaunation with the aim of determine their participation ratio in the biochemical processes

Keywords


protozoa, bacteria; rumen; fauna; metabolism; physiology

Full Text:

PDF


DOI: http://dx.doi.org/10.15835/buasvmcn-asb:62:0:2672


University of Agricultural Sciences and Veterinary Medicine
3-5 Manastur St., 400372 Cluj-Napoca
Romania
Tel: +40-264-596.384 | Fax: +40-264-593.792 
biroupublicatii@usamvcluj.ro