Responses of Lactation, Rumen Fermentation and Blood Biochemical Parameters with Increasing Dietary Inulin Supplementation in Mid-Lactation Dairy Cows

Effects of dietary supplementation inulin in dairy cows were investigated this study. Thirty-six mid-lactation Holstein randomly divided into six groups with per group and offered a total mixed ration supplemented 0 (control), 50, 150, 200, 250 350 g/d head, respectively. The animals pre-fed for 2 weeks before rumen fluid, milk blood samples collected weekly 3 weeks. With increasing doses, yield (p < 0.01) fat concentration = 0.04) linearly increased, while urea nitrogen somatic cell count decreased. Linear increases also detected the proportions saturated fatty acids polyunsaturated 0.04); however, monounsaturated decreased 0.04). ruminal concentrations acetate, propionate butyrate pH NH3-N reduced at decreasing rate doses 0.01). Moreover, lactic acid 0.03) volatile upregulated. There linear serum superoxide dismutase 0.02), immunoglobin G 0.01), M 0.04), interleukin-2 interleukin-10 quadratic protein albumin 0.02) decreases cholesterol triglyceride malondialdehyde results indicated that increased production, shifted profile, upregulated concentration, enhanced antioxidant immunity function dose-dependent manner.