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Table 4 Effect of elevated temperature and clove supplementation on immunological organs of black-meated fowls from 42 to 63 da

From: Acute phase protein mRNA expressions and enhancement of antioxidant defense system in Black-meated Silkie Fowls supplemented with clove (Eugenia caryophyllus) extracts under the influence of chronic heat stress

Treatment   Immune organ growth index (mg/g)
Liver (g/bird) Spleen Bursa of Fabricius Thymus
TC,b added clove, mg/kg
 0 32.68 1.30 3.99 1.13
ET,b added clove, mg/kg
 0 27.87 1.18 3.53 0.90
 200 29.72 1.34 4.32 1.00
 400 33.01 1.51 4.68 1.12
 600 35.34 1.55 5.66 1.17
 SEM 0.68 0.04 0.13 0.03
  P-value
TC vs. ET at 0 mg of clove/kg 0.043 0.016 0.140 0.003
Effects of clove under ET
 Linear 0.004 0.014 0.039 0.025
 Quadratic 0.093 0.148 0.341 0.007
  1. aData are means of 2 birds per replicate (5 birds per cage; 7 replicates per group). bTC: Thermoneutral temperature treatment (24 ± 2 °C); ET: Elevated temperature treatment (35 ± 2 °C)