Table 3. Effect of PFA on growth performance, serum neopterin, and CBH test in broiler chickens.
| Parameters | Time Points | NOR | HSC |
HSC + PFA (200 g/ton) |
|---|---|---|---|---|
| Bodyweight (gm) (n = 117–120) |
Day 1 | 44.11 ± 0.31 | 45.00 ± 0.31 | 44.36 ± 0.33 |
| Day 21 | a750.84 ± 11.58 | a748.08 ± 12.47 | a746.64 ± 11.29 | |
| Day 42 | a2415.76 ± 36.78 | b2275.19 ± 33.36 | b2294.29 ± 32.76 | |
| FCR (n = 6) | Day 21 | a1.632 ± 0.04 | a1.609 ± 0.03 | a1.571 ± 0.04 |
| Day 42 | a1.831 ± 0.02 | a1.878 ± 0.01 | a1.834 ± 0.02 | |
| Neopterin (nmol/l) (n = 7–10) | Day 42 | a7.23 ± 1.73 | b3.83 ± 0.50 | a7.22 ± 1.14 |
| CBHT (% Response) (n = 11–12) | 24 h | a21.48 ± 4.32 | a15.94 ± 2.70 | bc34.94 ± 4.63 |
NOR, normal control; HSC, heat stress control; PFA, phytogenic feed additive; FCR, feed conversion ratio; CBHT, cutaneous basophil hypersensitivity test; Values are expressed as mean ± standard error of the mean
a-b
Means bearing different superscripts in the same row differs significantly (p < 0.05) by one-way analysis of variance (ANOVA) followed by LSD.