Probiotics are microorganisms such as bacteria or yeast that can be added to the feed with the purpose of regulating the intestinal flora. The efficacy has been shown in many trials. However, the interest in finding new strains and better strains is still growing. Here we summarize some new data.

Decreasing dietary phosphorus (p) has the potential to reduce p excreted in manure and therefore alleviate the environmental damage associated with intensive animal farming. Continuous research is being conducted to get a clear understanding what effect diet composition has on manure output and composition. Here we summarise several studies.

Enzymes are vital for life and the use of these natural catalysts to speed up biochemical reactions in animals is an ongoing area of research. Some of the recent studies in poultry and pigs are listed here.

Adding enzymes to monogastric diets have clear effects on feed digestibility, but other factors can also help. In future, more factors than nutrient content alone may be included.

Mineral nutrition contains all the classic elements for nutrition research- requirements may be increased or decreased on the basis of sound scientific knowledge, whilst in practice, legislation is ever tightening on use. This means that efficiency of supply, through product form or improved models, is paramount for all species.