Naslov
Does pressure affect in vitro rumen fermentation? A comparison of pressure-release systems for in vitro incubation of feed substrates

Autori
Castro-Montoya, Joaquin ; Klir, Željka ; Dickhoefer, Uta

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, ostalo

Izvornik
Proceedings of the Society of Nutrition Physiology / Staudacher, W. ; Ausmeier, S. - Frankfurt, 2015, 38-38

ISBN
978-3-7690-4108-8

Skup
Society of Nutrition Physiology

Mjesto i datum
Göttingen, Njemačka, 10.03.2015. - 12.03.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Nije recenziran

Ključne riječi
Rumen fermentation ; Pressure-release systems ; Liquid-associated microbes ; Solid-associated microbes

Sažetak
The aim of the present study was to determine if there was differences in the in vitro fermentation when incubation flasks are closed with Ankom RF module, with syphon-type lid, or with no release of pressure over 24-h- incubation period with 2 g of feed mixture and 300 ml rumen buffer. There were no differences in total volatile fatty acids (VFA) and NH3 concentration as well as proportions of individual VFA between three systems. Moreover, the contents of nitrogen and purine bases were similar in both, solid (with feed particles) and liquid associated microbes. Although pressure in closed flasks was around 965 mbar after 24 h and thus much higher than in Ankom (4.8 mbar) or syphon (0.7 mbar) systems, no negative effects were observed in studied parameters. Hence, in 24-h-incubation of approximately 2 g feed material, closed flasks or those with syphon can be used without differences in the fermentation pattern of the substrate.

Izvorni jezik
Engleski

Znanstvena područja
Poljoprivreda (agronomija)

POVEZANOST RADA