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Table 1 Mean counts of Rhipicephalus microplus females (between 4.5 and 8 mm) in cattle submitted to different schemes and strategic control with fluralaner pour-on and control with an association of alphacypermethrin + ethion + chlorpyrifos spray

From: Two protocols using fluralaner for Rhipicephalus microplus strategic control on taurine cattle in a tropical region

Day of study

Date that chemical treatment was performed in the respective group

Experimental groups

Value Test2

Pr > KW3

T01: fluralaner (2.5 mg/kg) every 42 days

T02: Fluralaner (2.5 mg/kg) visual inspection for retreatment

T03: control (treatment when necessary)

Mean 1 count ± standard deviation/median/range

Mean 1 count ± standard deviation/median/range

Mean 1 count ± standard deviation/median/range

0*

T01 and T02

21.6 ± 3.4

21.0 (17–30) A

21.6 ± 3.3

20.7 (18–30) A

21.6 ± 3.1

21.7 (17–29.7) A

0.15

0.9287

7

T03

1.0 ± 1.1

1.0 (0–3) B

1.3 ± 1.5

0.0 (0–4) B

38.6 ± 9.0

36.0 (26–32) A

30.42

 < 0.0001

14

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

3.3 ± 3.4

2.0 (0–10) A

27.78

 < 0.0001

21

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

1.9 ± 1.9

3.0 (0–5) A

18.83

0.0001

28

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

2.9 ± 2.7

4.0 (0–7) A

21.68

 < 0.0001

35

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

15.0 ± 7.5

14.0 (6–34) A

41.71

 < 0.0001

42

T01 and T03

0.0 ± 0.0

0.0 (0–0) B

0.1 ± 0.5

0.0 (0–2) B

31.1 ± 10.6

31.0 (14–56) A

40.13

 < 0.0001

49

 

0.0 ± 0.0

0.0 (0–0) B

2.3 ± 3.5

0.0 (0–11) A

3.0 ± 3.0

3.0 (0–8) A

13.59

0.0011

56

T02

0.0 ± 0.0

0.0 (0–0) B

4.7 ± 4.1

4.0 (0–14) A

1.5 ± 1.8

1.0 (0–6) AB

19.23

0.0001

63

 

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

0.5 ± 1.2

0.0 (0–4) A

4.09

0.1293

70

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

5.6 ± 4.3

6.0 (0–13) A

31.03

 < 0.0001

77

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

9.3 ± 4.8

9.0 (3–18) A

41.78

 < 0.0001

84

T01 and T03

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

31.3 ± 15.5

33.0 (10–64) A

41.70

 < 0.0001

91

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

1.5 ± 1.8

1.0 (0–6) A

21.67

 < 0.0001

98

 

0.0 ± 0.0

0.0 (0–0) B

1.2 ± 2.6

0.0 (0–8) B

4.3 ± 3.4

4.0 (0–10) A

20.94

 < 0.0001

105

 

0.0 ± 0.0

0.0 (0—0) B

2.4 ± 4.0

0.0 (0–13) B

6.8 ± 4.4

6.0 (0–13) A

22.33

 < 0.0001

112

T02 and T03

0.0 ± 0.0

0.0 (0–0) B

4.9 ± 6.0

2.0 (0–18) B

61.9 ± 37.0

46.0 (9–125) A

35.66

 < 0.0001

119

 

0.0 ± 0.0

0.0 (0–0) B

0.2 ± 0.6

0.0 (0–2) B

3.8 ± 3.3

4.0 (0–9) A

20.40

 < 0.0001

126

T01

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

4.3 ± 3.1

4.0 (0–10) A

34.44

 < 0.0001

133

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

1.1 ± 1.2

1.0 (0–4) A

21.71

 < 0.0001

140

T03

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

41.1 ± 36.7

35.0 (4–156) A

41.70

 < 0.0001

147

 

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

0.9 ± 1.9

0.0 (0–6) A

6.28

0.0734

154

 

0.0 ± 0.0

0.0 (0–0) A

0.1 ± 0.3

0.0 (0–1) A

1.5 ± 2.1

0.0 (0–6) A

13.23

0.0613

161

 

0.0 ± 0.0

0.0 (0–0) B

0.3 ± 0.7

0.0 (0–1) B

1.3 ± 1.0

1.0 (0–3) A

19.09

0.0001

168

T01, T02 and T03

0.0 ± 0.0

0.0 (0–0) B

3.6 ± 7.4

0.0 (0–21) B

89.7 ± 61.7

68.0 (19–241) A

36.18

 < 0.0001

175

 

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

0.7 ± 1.0

0.0 (0–3) A

13.46

0.0012

182

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

0.9 ± 0.8

1.0 (0–2) A

21.73

 < 0.0001

189

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

2.3 ± 2.5

2.0 (0–10) A

10.31

 < 0.0001

196

T03

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

92.8 ± 65.0

85.0 (24–265) A

41.69

 < 0.0001

203

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

1.6 ± 2.1

1.0 (0–8) A

21.71

 < 0.0001

210

T01

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

0.7 ± 1.0

0.0 (0–3) A

13.46

0.0654

217

 

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

1.3 ± 3.1

0.0 (0–12) A

13.46

0.0743

224

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

5.1 ± 3.7

5.0 (0–12) A

04.38

 < 0.0001

231

T03

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

34.6 ± 24.4

29.0 (5–74) A

41.71

 < 0.0001

238

 

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

0.9 ± 1.1

0.0 (0–3) A

16.09

0.0571

245

 

0.0 ± 0.0

0.0 (0–0) B

0.0 ± 0.0

0.0 (0–0) B

1.7 ± 1.5

2.0 (0–5) A

27.79

 < 0.0001

252

 

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

0.4 ± 0.8

0.0 (0–3) A

8.57

0.0838

259

 

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

1.1 ± 3.1

0.0 (0–12) A

10.98

0.1041

266

 

0.0 ± 0.0

0.0 (0—0) A

0.0 ± 0.0

0.0 (0–0) A

1.2 ± 3.6

0.0 (0–14) A

8.56

0.1138

273

 

0.0 ± 0.0

0.0 (0—0) A

0.0 ± 0.0

0.0 (0–0) A

0.9 ± 3.1

0.0 (0–12) A

6.28

0.1433

280

 

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

0.4 ± 0.7

0.0 (0–2) A

8.57

0.0738

287

 

0.0 ± 0.0

0.0 (0–0) A

0.0 ± 0.0

0.0 (0–0) A

0.2 ± 0.4

0.0 (0–1) A

6.29

0.0632

294

 

0.1 ± 0.3

0.0 (0–1) A

0.0 ± 0.0

0.0 (0–0) A

0.5 ± 0.7

0.0 (0–2) A

10.42

0.1555

301

 

0.5 ± 0.7

0.0 (0–2) A

0.5 ± 1.1

0.0 (0–4) A

0.7 ± 0.8

1.0 (0–2) A

1.65

0.4386

308

 

0.9 ± 0.8

1.0 (0–2) A

0.7 ± 0.9

0.0 (0–2) A

1.8 ± 1.5

2.0 (0–5) A

6.24

0.0144

315

 

1.0 ± 0.8

1.0 (0–2) A

1.2 ± 0.9

1.0 (0–3) A

2.5 ± 1.9

2.0 (0–5) A

5.54

0.0626

322

 

2.5 ± 2.1

2.0 (0–4) A

1.4 ± 1.5

1.0 (0–5) A

2.5 ± 3.0

2.0 (0–12) A

2.39

0.3031

329

 

3.7 ± 1.7

4.0 (0–6) A

2.3 ± 2.9

2.0 (0–12) A

2.4 ± 1.9

2.0 (0–6) AB

7.64

0.0719

336

 

10.1 ± 8.0

9.0 (1–24) A

7.8 ± 5.9

5.0 (0–20) A

8.1 ± 6.9

9.0 (0–19) A

0.69

0.7084

343

 

15.4 ± 8.0

17.0 (0–26) A

14.6 ± 5.7

15.0 (4–24) A

15.5 ± 8.0

14.0 (5–32) A

0.38

0.8261

  1. *Means of tick counts between days − 3, − 2 and − 1
  2. 1: Means followed by the same capital letter in the line do not differ from each other (P ≤ 0.05)
  3. 2: value of the Kruskal-Wallis test
  4. 3: Probability of significance of the Kruskal-Wallis Test
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