Table 4.
Variable | No animals tested | SICCT-BT reactors % (95% CI) | SICCT-AT reactors*; %(SE) | SIT-BT reactors; %(95% CI) | SIT-AT reactors*; %(SE) | ||
---|---|---|---|---|---|---|---|
≥4 mm | ≥3 mm | ≥2 mm | ≥4 mm | ≥4 mm | ≥4 mm | ||
All animals | 1,381 | 7.41 (6.02–8.79) | 13.25 (11.47–15.04) | 17.26 (15.36–19.25) | 0.65 ± 0.42 | 18.35 (14.35–22.35) | 7.46 ± 1.39 |
Agroecological location | |||||||
ADP | 363 | 0.43a (0–1.11) | 0.40a (0–1.04) | 0.79a (0–1.70) | 0.55 ± 0.76 | 0.59a (0–2.13) | 0.83 ± 0.93 |
WHC | 1,018 | 9.89b (8.06–11.72) | 17.84b (15.49–20.19) | 23.13b (20.54–25.72) | 0.69 ± 0.51 | 24.68b (19.49–29.88) | 9.82 ± 1.83 |
Breed | |||||||
Upgraded/Exotic | 764 | 10.87a (8.66–13.08) | 16.12a (13.52–18.73) | 21.07a (18.18–23.96) | 0.79 ± 0.63 | 24.03a (18.09–29.96) | 11.39 ± 2.25 |
Guadal | 492 | 0.31 (0–0.79) | 0.28 (0–0.75) | 0.57 (0–1.24) | 0.41 ± 0.56 | 0.40 (0–1.50) | 0.61 ± 0.69 |
Namchi | 31 | 0 | 0 | 0 | 0 | 0 | 0 |
Red Bororo | 94 | 18.84a (10.94–26.75) | 62.22b (52.42–72.02) | 79.29b (71.10–87.49) | 1.06 ± 2.07 | 72.28b (54.54–90.01) | 13.83 ± 6.98 |
White Fulani | |||||||
Sex and Age | |||||||
Female | 1,107 | 8.29a (6.66–9.91) | 13.90a (11.87–15.94) | 17.69 (15.44–19.94) | 0.63 ± 0.47 | 19.73a (15.14–24.33) | 8.49 ± 1.64 |
Male | 274 | 3.83b (1.56–6.11) | 10.62a (6.98–14.28) | 15.51 (11.22–19.79) | 0.73 ± 1.01 | 12.77a (5.02–20.51) | 3.28 ± 2.11 |
Age ≤ 4 years | 716 | 4.41c (2.91–5.91) | 9.71b (7.55–11.88) | 12.50a (10.07–14.92) | 0.28 ± 0.39 | 11.93b (7.28–16.59) | 4.05 ± 1.44 |
Age > 4 years | 665 | 10.63d (8.29–12.97) | 17.07c (14.21–19.92) | 22.38b (19.22–25.55) | 1.05 ± 0.78 | 25.26c (18.79–31.73) | 11.13 ± 2.39 |
Management system | |||||||
Extensive | 488 | 0.31 (0–0.80) | 0.28 (0–0.75) | 0.58 (0–1.25) | 0 | 0.41 (0–1.51) | 0.20 ± 0.40 |
Intensive/Zero grazing | 552 | 8.95a (6.57–11.34) | 12.03a (9.31–14.74) | 16.50a (13.40–19.59) | 1.09 ± 0.87 | 20.74a (14.11–27.36) | 10.87 ± 2.60 |
Semi-intensive | 341 | 15.05b (11.26–18.85) | 33.89b (28.78–38.83) | 42.36b (37.11–47.60) | 0.88 ± 0.99 | 40.17b (29.97–50.37) | 12.32 ± 3.49 |
Beef herds | 692 | 7.39c (5.44–9.34) | 16.40c (13.64–19.16) | 20.63c (17.61–23.64) | 0.43 ± 0.49 | 18.97c (13.25–24.70) | 5.49 ± 1.70 |
Dairy herds | 689 | 15.15d (12.48–17.83) | 10.10d (7.85–12.35) | 13.87d (11.29–16.45) | 0.87 ± 0.69 | 17.73c (12.14–23.32) | 9.43 ± 2.18 |
Herd size (No animals per herd) | |||||||
≤40 animals | 713 | 9.41a (7.27–11.55) | 12.72a (10.27–15.17) | 16.38a (13.67–19.11) | 1.12 ± 0.77 | 19.14a (13.48–24.81) | 9.96 ± 2.20 |
>40 animals | 668 | 5.26b (3.57–6.96) | 13.82a (11.21–16.44) | 18.18a (15.26–21.11) | 0.15 ± 0.29 | 17.50a (11.86–23.15) | 4.79 ± 1.62 |
a, b, c, dLabel in a category with the different letters in a column are significantly different (P < 0.05).
*Observed prevalence.
ADP: Adamawa plateaux of Cameroon.
WHC: Western highlands of Cameroon.
SICCT-BT: Single Intradermal Comparative Cervical Tuberculin skin test for the diagnosis of bovine TB.
SIT-BT: Single Intradermal Tuberculin skin test for the diagnosis of bovine TB.