The purpose of the programme Grassland Management, Feedstuff Production and Animal Husbandry was to solve some problems in the field of feedstuff production and animal husbandry by taking into account the quality of intermediate and final products, competitiveness, principles of sustainability and particularities of Slovenian farming conditions. The research programme covered the fields of plant and animal breeding, plant and animal nutrition, technologies in agricultural production, quality of forage crops, meat and milk, agricultural mechanization and agricultural economics. Among many research results of the programme we would expose the following ones: -It was found that ensiling increased the degradability of maize starch and protein in the rumen. The increase in degradability during the ensiling process was higher in flint type grain than in dent type. The ensiling process increased the starch degradability of less mature grain to a greater extent than that of more mature grain. Rapidly degradable fraction, degradation rate and degradability of starch in the rumen were closely related to the characteristics of protein degradation. It indicates that protein properties are an important factor which controls the ruminal degradation of maize starch. -The effect of ageing of grass-clover sward on nitrogen metabolism in sheep was studied. It was found that in diets containing fresh forage the efficiency of microbial protein synthesis in the rumen varied from 21.7 to 28.9 g N kg-1 of digestible organic matter intake which is considerably higher than in hay or silages. The variability was explained by the concentration of sugars in fresh forage and by the changes in ruminal pH value. Microbial protein contributed from 62 to 73 % of metabolizable protein. The results indicate that the potential of grass-clover sward for the production of microbial protein in the rumen is similar to its potential for direct protein production on the meadow. -The main research results on pigs obtained during this program were the following: (1) we prepared a new method (equation) for on-line carcass classification in the Slovenia (2) we evaluated the uncertainty of meat percentage evaluation for the Slovenian method, (3) for the purpose of dry-ham production we evaluated the effect of crossing with duroc breed for its benefits (more intramuscular fat, lower processing losses, less salt intake) and disadvantages (more inter-muscular fat), (4) we made the first evaluation of meat quality of local pig breed Krškopoljec; high frequency of mutated ryr1 gene was found, in spite of that Krškopolje pigs presented some advantages for the meat quality (more intramuscular fat, better tenderness).