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Table 4 Dependency of morbidity, mortality and survival rate of chickens on types of vaccine carrier used to resist virulent strain ND virus challenge after three times vaccination

From: Serological response and protection level evaluation in chickens exposed to grains coated with I2 Newcastle disease virus for effective oral vaccination of village chickens

Vaccine carrier type Chicks N† Mean HI titer # morbidity (%) # death total #mortalitya (%) Lower 95 % CI Upper 95 % CI # Survival (%)
NDI2 in water 15 7.1 0(0.0) 0 0(0.0) 0 0 15(100)
Cracked maize 15 6.8 0 (0) 0 0(0.0) 0 0 15(100)
Parboiled barley 15 5.1 0(0.0) 0 0(0.0) 0 0 15(100)
Parboiled wheat 14 4.5 5(30.0) 2 2(14.3) 0 32.6 12(85.7)
Untreated wheat 15 3.3 6 (40.0) 3 3(20.0) 0 40.2 12(80.0)
Parboiled sorghum 15 4.4 6(26.7) 3 3(20.0) 0 40.2 12 (80.0)
Cracked wheat 14 3.3 8(53.3) 4 4(28.6) 4.9 52.2 10(71.4)
Parboiled millet 14 3.2 7(46.7) 4 4(28.6) 4.9 52.2 10(71.4)
Cracked millet 15 2.5 10(66.7) 6 6(40.0) 15.2 64.8 9(60.0)
Untreated barley 15 2.8 8(53.3) 6 6(40.0) 15.2 64.8 9(60.0)
Cracked barley 15 2.5 7(46.7) 6 6(40.0) 15.2 64.8 9(60.0)
Untreated sorghum 15 2.4 10(66.7) 7 7(46.7) 21.4 71.9 8(53.3)
Untreated millet 12 2.4 8(53.3) 6 6 (50) 21.7 78.3 6 (50.0)
Cracked sorghum 14 1.9 11(73.3) 9 9(64.3) 39.2 89.4 5(35.7)
Naïve 15 0.0 14 (93.3) 12 12(80.0) 59.8 100 3 (20.0)
  1. N represented number of chickens present in each group at age of 129 day (onset of the challenge). Figures outside the brackets indicated number of chickens in each group whereas figures in brackets indicated percentages. a Chickens in the treatment groups listed up to parboiled millet had significantly (p < 0.0001) higher survival rate compared to the naïve group. The lower and upper 95 % confidence interval (CI) of mortality of chickens per each treatment group was shown in the table