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Table 4 Frequency of turkeys with severe intestinal lesions and OPG counts

From: Developing an experimental necrotic enteritis model in turkeys - the impact of Clostridium perfringens, Eimeria meleagrimitis and host age on frequency of severe intestinal lesions

Experiment (turkey age)EM dose1Hours after EM2No. of scored birds
(samples of intestinal contents)
Percent score33Median log10 OPG4
15–20127–12922 (6)40.9c6.3a
(3-wk-old) 14522 (−)< 4.5d
  16922 (6)4.5d5.3b
20.2512324 (5)< 4.2a5.0a
(3-wk-old) 14524 (5)< 4.2a5.6a
31.612120 (4)< 5.0c0c
(3-wk-old) 14520 (4)5.0c6.4d
  16813 (3)46.2d6.2cd
45–1512325 (6)100.0c6.5a
(3-wk-old) 14724 (6)< 4.2d5.2b
  17127 (6)7.4d4.7b
5511923 (4)< 4.3a4.8a
(3-wk-old) 14118 (4)< 5.6a6.0b
610–2011917 (2)< 5.9c3.7c
(3-wk-old) 14213 (2)< 7.7c6.0c
  1685 (2)< 20.0c6.0c
71512114 (3)7.1c6.2c
(3-wk-old) 14414 (3)< 7.1c5.8c
  16814 (3)< 7.1c5.9c
810124–13264 (16)< 1.6a5.8a
(3-wk-old) 142–14957 (16)< 1.8a5.9a
910–201258 (4)12.5a4.6a
(3-wk-old) 14515 (4)6.7a6.2b
(5-wk-old) 1258 (4)75.0a4.6a
  14517 (4)76.0a6.1b
  1. 1Numbers of Eimeria meleagrimitis oocysts (in thousands) inoculated per bird, 2 Number of hours elapsed between Eimeria meleagrimitis inoculation and examination of turkeys, 3Eimeria meleagrimitis- and Clostridium perfringens-inoculated birds, 4Eimeria meleagrimitis-inoculated birds
  2. a-bKruskal-Wallis rank test. Different letters indicate significant (p < 0.05) difference, c-d Dunn’s test. Different letters indicate significant (p < 0.05) difference