Research Article

Reclamation of Astragalus By-Product through Dietary Inclusion in Ruminant Diets: Effects on Growth Performance, Nutrient Digestibility, Rumen Fermentation, Blood Biochemical Parameters, and Humoral Immune Response in Sheep

Table 4

Blood biochemical parameters and humoral immune response of sheep fed diets supplemented with different levels of dietary Astragalus by-product.

Items1Dietary treatments2SEMTime3 value
Control10% ABP15% ABPD0D15D30D45DTTDT × TLQ

Blood biochemical parameters
TP (g/L)66.8659.6364.580.49165.4961.3463.7264.210.0710.5350.6210.7260.428
ALB (g/L)35.5832.8135.510.66935.0933.0934.6735.680.1840.4370.4490.4370.245
GLB (g/L)31.2926.8229.080.73430.4128.2529.0528.540.1110.6200.8620.7030.785
BUN (mmol/L)6.175.426.480.2315.996.226.765.110.1250.0770.2060.1450.627
GLU (mmol/L)4.073.764.090.0804.183.714.004.020.2550.2250.5070.3180.514
TG (mmol/L)0.390.330.410.0170.370.360.450.330.3570.0520.7340.9530.579
CHOL (mmol/L)1.86a1.41b1.76ab0.0591.931.511.571.690.0430.0520.7090.7040.611
HDL-CH (mmol/L)1.201.071.330.0401.241.191.221.150.1560.6420.4050.2170.166
LDL-CH (mmol/L)0.570.440.450.0220.58a0.45ab0.43b0.49b0.2850.0170.3750.1430.286

Immune response
IgG (μg/mL)126.72127.25122.695.287138.95115.70113.25134.320.9040.3900.9600.7720.765
IgM (μg/mL)364.69363.40361.729.664405.67347.71342.74356.970.9880.3010.6490.1030.278
IgA (μg/mL)54.5452.0654.411.81256.3354.6051.5252.230.6820.7600.9410.9920.574

a,bMeans within a row with different subscripts differ when ; 1TP, total protein; ALB, albumin; GLB, globulin; BUN, blood urea nitrogen; GLU, glucose; TG, triglyceride; CHOL, cholesterol; HDL-CH, high-density lipoprotein cholesterol; LDL-CH, low-density lipoprotein cholesterol; IgG, immunoglobulin G; IgM, immunoglobulin M; IgA, immunoglobulin A; 2ABP, Astragalus by-product; 3D, day; DT, dietary treatment; T, time; SEM, standard error of the mean.