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Table 2 Number of animals infested with ticks < 4 mm in length between the legs of the animal or in the dewlap region and average counts of female Rhipicephalus microplus (≥ 4.5 mm in length) present on the left side of the body of animals subjected to different control schemes against R. microplus

From: Enzootic stability of tick fever in Holstein calves grazing in a tropical region, subjected to strategic cattle tick control with fluralaner

  

Number of animals with ticks < 4 mm in lenght (%)

Tick counts (females (≥4.5 mm in lenght)

 

Value of P

Day

Animal age in months

  Treatment (FLU)

Control (FIFLUA)

Treatment (FLU)

Control (FIFLUA)

Mean*

Range

Mean*

Range

0

4

6/30 (20)

6/30 (20)

0.03

A

0

–

1

0.23

A

0

–

2

0.0761

7

7/30 (23.3)

6/30 (20)

0.19

A

0

–

2

0.20

A

0

–

4

0.7248

14αβ

13/30 (43.3)

14/30 (46.6)

0.00

A

0

–

0

0.03

A

0

–

1

0.3094

21

0/30 (0)

1/30 (3.3)

0.00

A

0

–

0

0.03

A

0

–

1

0.3094

28

5/30 (16.6)

6/30 (20)

0.00

A

0

–

0

0.00

A

0

–

0

1.0000

35

5

0/30 (0)

2/30 (6.6)

0.00

A

0

–

0

0.10

A

0

–

1

0.0733

42 β

0/30 (0)

28/30 (93.3)

0.00

A

0

–

0

0.07

A

0

–

2

0.3094

49

2/30 (6.6)

21/30 (70)

0.00

B

0

–

0

0.83

A

0

–

7

0.0011

56

7/30 (23.3)

20/30 (66.6)

0.00

B

0

–

0

0.87

A

0

–

5

 < 0.0001

63 α

6

20/30 (66.6)

21/30 (70)

0.65

A

0

–

8

0.73

A

0

–

5

0.3237

70

0/30 (0)

18/30 (60)

0.03

B

0

–

1

1.00

A

0

–

6

0.0009

77

1/30 (3.3)

12/30 (40)

0.00

A

0

–

0

0.00

A

0

–

0

1.0000

84 β

0/30 (0)

26/30 (86.6)

0.00

B

0

–

0

0.20

A

0

–

2

0.0187

91

7

0/30 (0)

19/30 (63.3)

0.00

B

0

–

0

0.97

A

0

–

8

0.0023

98

0/30 (0)

24/30 (80)

0.00

B

0

–

0

0.67

A

0

–

5

0.0002

105

0/30 (0)

30/30 (100)

0.00

B

0

–

0

1.93

A

0

–

8

 < 0.0001

112

0/30 (0)

22/30 (73.3)

0.00

B

0

–

0

0.43

A

0

–

6

0.0188

119

8

0/30 (0)

23/30 (76.6)

0.03

B

0

–

1

0.60

A

0

–

3

0.0010

126 β

8/30 (26.6)

29/30 (96.6)

0.03

B

0

–

1

0.70

A

0

–

5

0.0010

133 α

29/30 (96.6)

22/30 (73.3)

0.39

A

0

–

4

1.00

A

0

–

9

0.4115

140

0/30 (0)

30/30 (100)

1.29

A

0

–

5

0.90

A

0

–

4

0.3342

154

9

0/30 (0)

24/30 (80)

0.00

B

0

–

0

0.70

A

0

–

6

 < 0.0001

175

10

5/30 (16.6)

27/30 (90)

0.00

B

0

–

0

0.90

A

0

–

11

 < 0.0001

  1. *Mean count values followed by the same letter in the same row do not differ significantly at a 95% reliability level of significance (Kruskal–Wallis test)
  2. FIFLUA Fipronil + fluazuron formulation, FLU fluralaner formulation
  3. αAll 30 animals in FLU group received fluralaner
  4. βAll 30 animals in FIFLUA group received fipronil + fluazuron