Dynamics of rumen methane production after nitrate addition.

The present study aimed to assess the dynamics of rumen methane (CH) production following the addition of NaNO This was done using an rumen fermentation system that ensures continuous gas and methane assessments. Four different levels of NaNO were used to get the final nitrate concentrations of 0.5, 1.

In vitro aflatoxins recovery after changing buffer or protozoa concentrations in the rumen fermentation fluid.

This study simulates in vitro the effects of (i) rumen acidity and (ii) change in rumen protozoa numbers on the recovery of aflatoxins (AFs). Two 24-h fermentation experiments were carried out using the same batch in vitro fermentation systems and substrate (dried corn meal) containing 11.42, 2.

A new equipment for continuous measurement of methane production in a batch in vitro rumen system.

A new rumen batch fermentation system that allows continuous measures of total gas (GP) and methane production (MP) was tested. The fermentation system is composed of glass bottles connected to gas counters (Ritter Apparatebau GmbH & Co. KG) and an infrared gas analyser that measures the methane concentration.

Evaluation of dietary addition of 2 essential oils from , or their components (bornyl acetate, camphor, and eucalyptol) on in vitro ruminal fermentation and microbial community composition.

This study investigated the effects of 2 essential oils extracted from plants collected in 2 different valleys of the Italian Alps and 3 pure compounds of oils - bornyl acetate (BOR), camphor (CAM), and eucalyptol (EUCA) - on in vitro ruminal fermentation and microbiota. An in vitro batch fermentation experiment (Exp. 1) tested the addition of all of the substances (2 essential oils and 3 compounds) in fermentation bottles (120 mL) at 48 h of incubation, whereas a subsequent in vitro continuous culture experiment (Exp.