Effect of natural dolomites on the in vitro fermentation and rumen protozoan population using rumen fluid and fresh faeces inoculum from sheep

2007 ◽  
Vol 73 (1-3) ◽  
pp. 58-66 ◽  
Author(s):  
Z. Váradyová ◽  
I. Štyriaková ◽  
S. Kišidayová
Keyword(s):  
Rumen Fluid ◽  
In Vitro Fermentation ◽  
Rumen Protozoan

In vitro fermentation of key dietary compounds with rumen fluid: A genome-centric perspective

2017 ◽  
Vol 584-585 ◽  
pp. 683-691 ◽  
Author(s):  
Stefano Campanaro ◽  
Laura Treu ◽  
Mirko Cattani ◽  
Panagiotis G Kougias ◽  
Veronica Vendramin ◽  
...  
Keyword(s):  
Rumen Fluid ◽  
In Vitro Fermentation ◽  
A Genome

Influence of ionophores on in vitro fermentation by rumen fluid from sheep receiving yeast culture (Yeasacc; YC)

1991 ◽  
Vol 1991 ◽  
pp. 78-78
Author(s):  
C.J. Newbold ◽  
R.J. Wallace ◽  
I.M. Nevison
Keyword(s):  
Feed Efficiency ◽  
Rumen Fluid ◽  
Basal Diet ◽  
Rumen Fermentation ◽  
Animal Production ◽  
Yeast Culture ◽  
Microbial Protein ◽  
In Vitro Fermentation ◽  
Wide Range

A wide range of compounds has been described which have the potential to improve animal production by manipulating the rumen fermentation. Prominent among these rumen modifiers are the ionophores. Ionophores, such as monensin and tetronasin, improve feed efficiency, partly by increasing the flow of amino-N from the rumen and partly by stimulating the production of propionate in the rumen with an associated reduction in the production of methane (Russell and Strobel, 1988). Recently there has been increasing interest in the use of yeast culture (YC) and other fungal preparation to modify the rumen fermentation. These products have been shown to increase bacterial numbers within the rumen with an associated increase in the breakdown of fibre and supply of microbial protein (Williams and Newbold, 1990). YC has also been reported to increase the production of propionate in the rumen. Little appears to be known about the effect a combination YC and an ionophore would have on the rumen fermentation. This study describes the effects of the ionophores monensin and tetronasin on the fermentation of hay by rumen fluid from sheep fed a basal diet with or without YC.

In vitro fermentation of browse species using goat rumen fluid in relation to browse polyphenol content and composition

2017 ◽  
Vol 231 ◽  
pp. 1-11 ◽  
Author(s):  
G. Mengistu ◽  
M. Karonen ◽  
J.-P. Salminen ◽  
W.H. Hendriks ◽  
W.F. Pellikaan
Keyword(s):  
Rumen Fluid ◽  
Polyphenol Content ◽  
In Vitro Fermentation ◽  
Browse Species ◽  
Goat Rumen

scholarly journals Tea saponins affect in vitro fermentation and methanogenesis in faunated and defaunated rumen fluid

2005 ◽  
Vol 6B (8) ◽  
pp. 787-792 ◽  
Author(s):  
Wei-lian Hu ◽  
Yue-ming Wu ◽  
Jian-xin Liu ◽  
Yan-qiu Guo ◽  
Jun-an Ye
Keyword(s):  
Rumen Fluid ◽  
In Vitro Fermentation

A comparison between equine faeces and caecal digesta as sources of inoculum for in vitro fermentation studies using the pressure transducer technique

1996 ◽  
Vol 1996 ◽  
pp. 225-225
Author(s):  
R.S. Lowman ◽  
M.K. Theodorou ◽  
A.C. Longland ◽  
D. Cuddeford
Keyword(s):  
Pressure Transducer ◽  
Rumen Fluid ◽  
In Vitro Fermentation ◽  
Faecal Material ◽  
Micro Organisms

Several studies have shown high correlations between in vtvo and in vitro degradation of fibrous feeds when preparations from either rumen fluid or ruminant faeces have been used as the inocula for the in vitro studies (El Shaer et al., 1987; Akhter et al., 1994 & 1995; Harris et al., 1995). Use of an inoculum prepared from faecal material is attractive, for unlike that obtained from rumen fluid, it precludes the need to prepare and maintain fistulated donor animals. This study investigated the use of pony faeces, as an alternative to pony caecal digesta, as a source of micro-organisms for in vitro feed degradability studies.

In Vitro Fermentation of the Non-Starch Polysaccahride Fraction of Tropical Forage Legumes

1994 ◽  
Vol 1994 ◽  
pp. 135-135
Author(s):  
A.C. Longland ◽  
R.D. Pilgrim ◽  
J. Thorpe ◽  
S.J. Lister ◽  
P. Morris ◽  
...  
Keyword(s):  
Rumen Fluid ◽  
Condensed Tannin ◽  
Monosaccharide Composition ◽  
Dietary Energy ◽  
Tannin Content ◽  
Forage Legumes ◽  
In Vitro Fermentation ◽  
Acacia Cyanophylla ◽  
Tropical Forage

The fibre fraction (= non-starch polysaccharides; NSP) of tropical forage legumes is a potentially important source of dietary energy. Such legumes, however often contain tannins which can reduce the fermentability of the NSP fraction. In this study, the monosaccharide composition and in vitro digestibility of the NSP fraction of eleven tropical forage legumes varying in condensed tannin content, were investigated.Milled, lyophilised leaves of 5 species of forage legume from Ethiopia, Sesbania goetzei (SG), Sesbania sesban (SS) Leucaena leucocephala (LL), Acacia cyanophylla (AC), Chamaecytisus palmensis (CP)) and six from Colombia, Calliandra sp. 29400 (C), Dioclea guianensis (DG), Flemingia macrophylla 77409 (FM) Tadehagi sp. 23227 (T23), 13269 (T69) and 13275 (T75)) were used. One gram samples were fermented at 39°C for 7 d under anaerobic conditions in modified Van Soest medium inoculated with bovine rumen fluid (5 replicates per species). At the end of the fermentation period, residues were filtered, washed with distilled water and lyophilised. The NSP content and composition of the original samples and their residues were determined by the method of Englyst and Cummings (1984). The bound, soluble and total condensed tannin contents of the original samples were determined by the method of Terrill et al. (1992).

IN-VITRO FERMENTATION OF ALDITOLS BY RUMEN CONTENTS AND ABSORPTION OF ALDITOLS IN THE OVINE SMALL INTESTINE

1984 ◽  
Vol 64 (5) ◽  
pp. 41-42
Author(s):  
C. J. LISTER ◽  
R. R. SMITHARD
Keyword(s):  
Small Intestine ◽  
Key Words ◽  
Terminal Ileum ◽  
Rumen Fluid ◽  
Fluid Absorption ◽  
In Vitro Fermentation

In-vitro incubations with rumen fluid from four wethers showed that glucose, glucitol and mannitol were fermented more rapidly than arabinitol and xylitol and that arabinitol was fermented more rapidly than xylitol (P < 0.05) when the alditols or sugar were added singly. When arabinitol and xylitol or mannitol and xylitol were added as mixtures there was no effect on rates of individual alditol fermentation. Measurement of alditols reaching the duodenum and subsequently the terminal ileum of three sheep given an alditol mixture via the rumen showed that less than half the pentitols entering the small intestine were absorbed there. When higher levels of alditols entered the small intestine by infusion into the duodenum, absorption of pentitols was less efficient than that of the hexitols, mannitol and glucitol. Key words: Alditols, fermentation, rumen fluid, absorption

In vitrogas and foam production by rumen fluid from cows of genetically high or low susceptibility to pasture bloat

1987 ◽  
Vol 45 (1) ◽  
pp. 37-42 ◽  
Author(s):  
F. R. M. Cockrem ◽  
J. T. McIntosh ◽  
R. D. McLaren ◽  
C. A. Morris
Keyword(s):  
Rumen Fluid ◽  
Genetic Selection ◽  
Gas Production ◽  
In Vitro Fermentation ◽  
Grazed Pasture ◽  
Selection For ◽  
Foam Production

AbstractRumen fluid was obtained from rumen fistulated cows (two of high (HS) and two of low (LS) susceptibility to bloat) which were bred in experimental herds subjected to long-term divergent genetic selection for pasture bloat susceptibility. In vitro fermentation using strained rumen fluid from each cow with various pasture juice substrates showed no differences between HS and LS in gas production per unit of rumen fluid or in foam production per unit of gas production. Fluid from cows on grazed pasture produced greatest gas volumes. Clover juices produced more foam of similar stability to ryegrass and mixed pasture juices. Foam production per unit of gas was greater for all juices when the rumen fluid was from cows grazing bloat potent pasture.

169 Effects of dietary supplements rich in docosahexaenoic acid on in vitro fermentation and microbial composition of lamb rumen fluid

2021 ◽  
Vol 12 (1) ◽  
pp. 139
Author(s):  
Johanna Brans ◽  
Fernanda Godoy-Santos ◽  
Omar Cristobal-Carballo ◽  
Eva Lewis ◽  
Nigel Scollan ◽  
...  
Keyword(s):  
Docosahexaenoic Acid ◽  
Dietary Supplements ◽  
Rumen Fluid ◽  
Microbial Composition ◽  
In Vitro Fermentation

scholarly journals MINIMIZE THE HYDROGENATION OF UNSATURATED FATTY ACID IN RUMEN WITH FORMALDEHYDE

2011 ◽  
Vol 11 (1) ◽  
pp. 43-47 ◽  
Author(s):  
Nafly C. Tiven ◽  
Lies Mira Yusiati ◽  
Rusman Rusman ◽  
Umar Santoso
Keyword(s):  
Fatty Acid ◽  
Unsaturated Fatty Acid ◽  
Rumen Fluid ◽  
In Vitro Fermentation ◽  
Rumen Microbes ◽  
The Difference ◽  
Female Sheep ◽  
Test Result ◽  
Range Test

This research aimed to know the ability of formaldehyde to protect unsaturated fatty acid of CPO on the hydrogenation process by rumen microbes. In this experiment, the in vitro fermentation of rumen fluid was carrying out. It was taken from the rumen-trocar of female sheep. The unsaturated fatty acid source was from CPO (Crude Palm Oil) which encapsulated by formaldehyde 37% within 0%, 1%, 2% and 3%. The data was analyzed by Completely Random Design with Duncan's New Multiple Range Test. The difference of means the treatments were tested by Duncan's New Multiple Range Test. Result showed that oleic and linoleic resulting from fermenting CPO protected by formaldehyde was increase if it was compared with the unprotected CPO. It can be concluded that encapsulated CPO with formaldehyde was able to prevent hydrogenating of unsaturated fatty acid, mainly oleic and linoleic.

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