The level of faunation of rumen in relation to some factors of nitrogen metabolism

Title:

The level of faunation of rumen in relation to some factors of nitrogen metabolism

Creator:

Feješ, J. and Várady, J.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:d61ea555-3314-4c77-bce3-dd2fe6b4d934
uuid:d61ea555-3314-4c77-bce3-dd2fe6b4d934

Subject:

defaunation, rumen, pH, NH3, urea, nitrogen, and lambs

Type:

article, model:article, and TEXT

Description:

Our experiments on metabolic processes in the rumen were performed on sixteen 5-month-old lambs divided into 4 groups (defaunated - D, totally refaunated - T, partially refaunated - P and intact - 1). The absence or presence of protozoa in the rumen did not significantly affect the pH values. The greatest differences in NH3 concentration in the rumen before feeding were found between the T and D group (P<0.05). The animals of the T and I groups had higher NH3 concentrations than the D and P groups 1-5 hours after feeding (P<0.05 to PcO.OOl). Blood urea concentrations before and after feeding were significantly higher in the group I compared to the other groups (P<0.05 to PcO.OOl). Significant differences in the total nitrogen in rumen fluid were only found between groups D and I. The values of protozoan nitrogen in the rumen and their mutual relationship among the groups could be expressed by the following ratios: I>T>P>D. Proportions of the values of bacterial nitrogen followed in this order: D>P>T>I. The animals in group D had a significantly higher level of residual nitrogen than those in the other groups (P<0.05).

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 1996 Volume:45 | Number:2

Harvested from:

CDK

Metadata only:

false