Table 5 Effect of Nutri biyo^® supplementation on immune functions in broilers.

Immune organs index (21st day)

 Bursa

0.39^c

0.46^b

0.53^ab

0.58^a

0.02

0.021

 Spleen

0.24^b

0.28^b

0.31^ab

0.34^a

0.015

0.036

 Thymus

0.61^b

0.68^b

0.74^ab

0.79^a

0.03

0.033

Immune organs index (35th day)

 Bursa

0.45^c

0.55^b

0.62^ab

0.67^a

0.02

0.019

 Spleen

0.29^b

0.31^b

0.34^ab

0.37^a

0.015

0.041

 Thymus

0.77^b

0.82^b

0.88^ab

0.91^a

0.03

0.035

Antibody titers (35th day)

 ND Log₂

6.83^c

8.63^b

9.66^ab

10.00^a

0.582

0.015

 IB S/P

0.47^c

0.92^b

0.94^ab

1.02^a

0.102

0.031