Effects Of Ultrafine Powder of the Stem and Leaf of Astragalus on Immunity in Chickens

Figures & data

Figure 1. The standard curve of interleukin-2.

Figure 2. The standard curve of immunoreactive fibronectin.

Table 1. The Newcastle disease virus antibody titers in different experiment groups (log₂).

Groups	21-day-old	28-day-old	35-day-old	42-day-old	49-day-old
I	4.25±0.50	7.50±0.53^Aa	5.13±0.35^Aa	8.13±0.83^Aa	7.75±0.46^Aa
II	4.75±0.50	7.50±0.53^Aa	5.75±0.46^ABb	8.75±0.89^ABab	8.38±0.52^ABab
III	4.50±0.58	8.25±0.46^Bb	5.50±0.53^Aab	8.75±0.46^ABab	8.25±0.71^ABab
IV	4.50±0.58	7.75±0.46A^Bab	5.75±0.46^ABb	9.13±0.83^ABb	8.00±0.53^ABa
V	4.50±0.58	8.25±0.46^Bb	6.25±0.46^Bc	9.50±0.53^Bb	8.75±0.71^Bb

Values in the same column with different letters show significant difference: uppercase letters mean P<.05, while lowercase ones mean P<0.01.

Table 2. Effect of Astragalus on interleukin-2 (pg/mL).

Group	21-day-old	35-day-old	49-day-old
I	41.11±1.15^a	29.13±1.98^a	12.60±3.08^Aa
II	45.83±2.40^b	32.43±1.71^b	15.08±1.80^ABa
III	42.22±1.21^a	30.57±2.73^ab	19.41±1.68^Bb
IV	43.57±2.95^ab	31.24±2.39^ab	14.40±2.68^ABCa
V	44.52±3.50^ab	33.09±1.61^b	22.67±3.60^Cb

Values in the same column with different letters show significant difference: uppercase letters mean P<.05, while lowercase ones mean P<.01.

Table 3. Changes of immunoreactive fibronectin in different groups (pg/mL).

Group	21-day-old	35-day-old	49-day-old
I	9.63±0.61^ab	6.36±0.33^Aa	3.66±0.34^ABb
II	9.65±0.36^ab	6.63±0.39^Aa	3.87±0.26^Bb
III	9.60±0.58^ab	6.62±0.42^Aa	3.10±0.34^Aa
IV	9.87±0.37^b	7.48±0.37^Bb	4.87±0.35^Cc
V	9.03±0.36^a	6.58±0.43^Aa	3.99±0.25^Bb

Values in the same column with different letters show significant difference: uppercase letters mean P<.05, while lowercase ones mean P<.01.