Ureolytic Bacteria in Sheep Rumen

Isolation of proteolytic bacteria from the sheep rumen.

A survey of the proteolytic bacteria present in the rumens of sheep on different kinds of diets has been made, with special emphasis on the isolation of anaerobic types. The results suggest that proteolytic activity is not confined to a single kind of rumen bacterium, but that it is a variable property possessed by strains of many kinds of bacteria which can be active in the breakdown of other ...

Genetically modified rumen bacteria protect sheep from fluoroacetate poisoning

In two separate experiments, test sheep were inoculated with a mixture of four genetically modified strains of Butyrivibrio fibrisolvens, which attained a combined population level of 1 06-10’ cells per ml in each animal. The bacteria had been modified to express the enzyme fluoroacetate dehalogenase. Uninoculated sheep were used as controls. Experiment I included two Merino/ Border Leicester c...

Insights into Abundant Rumen Ureolytic Bacterial Community Using Rumen Simulation System

Urea, a non-protein nitrogen for dairy cows, is rapidly hydrolyzed to ammonia by urease produced by ureolytic bacteria in the rumen, and the ammonia is used as nitrogen for rumen bacterial growth. However, there is limited knowledge with regard to the ureolytic bacteria community in the rumen. To explore the ruminal ureolytic bacterial community, urea, or acetohydroxamic acid (AHA, an inhibitor...

In-Situ Soil Cementation with Ureolytic Bacteria by Surface Percolation

Rumen phosphorus metabolism in sheep

R. S. DIAS , S. LOPEZ *, T. SILVA , R. M. P. PARDO , J. C. SILVA FILHO , D. M. S. S. VITTI 2, E. KEBREAB 6 AND J. FRANCE 1 1Centre for Nutrition Modelling, Department of Animal and Poultry Science, University of Guelph, Guelph, ON N1G 2W1, Canada Animal Nutrition Laboratory, Centro de Energia Nuclear na Agricultura, Caixa Postal 96, CEP 13400-970, Piracicaba, SP, Brazil 3 Instituto de Ganaderı́a...