Influence of the concentration of the protease from Streptomyces griseus relative to ruminal protein degradability

The main objective of this paper is to ascertain the optimum concentration of the Streptomyces griseus enzyme relative to protein content with a number of ruminant feeds. For this purpose a range of enzyme concentrations was examined up to saturation, and in combination with feed samples evaluated in situ. Literature values for in vivo estimation are also compared.
Improvement of the Streptomyces griseus method for degradable protein in ruminant feeds
Improvement of the Streptomyces griseus method for degradable protein in ruminant feeds

The objectives of this paper were to study the effects of enzyme–protein ratio and pH at 6.7 and 8.0 upon degradability. The problem of optimal enzyme concentration will be addressed in a future paper.
Forage quality of native pasture in a Mediterannean area

Use of native pastures will support the relationship between quality of dairy products and their origin. The nutritional and chemical composition of individuals species and their mixtures are reported in this paper.