Evaluation of the nutritional value of goat forages in Shandong Province Effect of concentrate-roughage ratio and rapeseed meal supplementation on associated effects of diets in vitro Analysis of the nutritional components and feeding values of commonly used roughages Effects of Different Roughage Diets on the Growth Performance and Economic Benefits of Dairy Cows Effects of SARA induced by high level concentrate on cortisol concentrations in serum and rumen fluids of the goats during lactation