Table 2.
Ectoparasite counts on heifers from Holstein × Gir crossbreeds from November 2007 to September 2009 in the northeast of Minas Gerais State, Brazil.
| Month | R. microplus | D. hominis | H. irritans | |||
|---|---|---|---|---|---|---|
| Group A | Group B | Group A | Group B | Group A | Group B | |
| Nov./07 | 0.0 (0.0) 0-0 |
0.0 (0.3) 0-0 |
0.0 (0.4) 0–0.3 |
0.0 (0.0) 0-0 |
0.0 (4.2) 1–6 |
6.5 (8.5) 3–11.8 |
|
| ||||||
| Dec./07 | 0.0 (2.1) 0–2.5 |
3.0 (4.3) 0–6.5 |
0.0 (0.2) 0-0 |
0.0 (0.0) 0-0 |
10.5 (15.7) 5.5–19.5 |
13.5 (29.5) 3.8–31.8 |
|
| ||||||
| Jan./08 | 0.0 (0.0) 0-0 |
0.0 (0.0) 0-0 |
0.0 (1.0) 0-1 |
∗2.0 (5.5) 1.5–7 |
0.0 (2.1) 0–3 |
2.5 (3.1) 1–4 |
|
| ||||||
| Feb./08 | 1.0 (1.7) 0–3 |
0.0 (0.4) 0-1 |
0.0 (0.7) 0-1 |
1.0 (2.9) 0.8–4.3 |
1.0 (1.7) 1–2.3 |
2.0 (2.0) 1-2 |
|
| ||||||
| Mar./08 | 2.0 (3.4) 0–6 |
0.0 (0.8) 0–2 |
0.0 (0.1) 0-0 |
0.0 (0.1) 0-0 |
0.0 (0.9) 0–1.3 |
0.0 (0.9) 0-0 |
|
| ||||||
| April/08 | 2.0 (2.6) 0.8–4 |
1.0 (1.5) 0–2.5 |
0.0 (0.2) 0-0 |
0.0 (0.9) 0–1.3 |
1.0 (1.5) 1-2 |
2.0 (2.8) 0–2.3 |
|
| ||||||
| May/08 | 1.0 (1.8) 0–2 |
1.0 (2.3) 0–3 |
0.0 (0.2) 0-0 |
0.0 (1.4) 0–1.5 |
1.0 (1.7) 0–2 |
1.0 (5.0) 0–3 |
|
| ||||||
| June/08 | 3.0 (4.7) 1.8–5.5 |
3.5 (4.4) 1–5.8 |
0.0 (0.2) 0-0 |
0.0 (0.5) 0–0.3 |
2.5 (2.9) 1–4 |
4.5 (8.1) 2–9 |
|
| ||||||
| July/08 | 5.0 (7.6) 2–8.5 |
4.0 (6.5) 1.5–8.5 |
0.0 (0.3) 0-0 |
∗2.5 (3.0) 0–4.3 |
2.0 (3.6) 0.8–5.3 |
∗8.0 (10.5) 3.8–15 |
|
| ||||||
| Aug./08 | 15.0 (18.1) 4–21 |
∗0.0 (8.5) 0–7 |
0.0 (0.4) 0-0 |
∗3.5 (5.1) 0–8.5 |
3.5 (4.5) 1.8–6.3 |
6.0 (17.6) 2–8 |
|
| ||||||
| Sept./08 | 8.0 (9.4) 3–12 |
1.5 (5.3) 0–8 |
0.0 (0.5) 0-1 |
1.5 (2.9) 0–5.5 |
23.5 (25.2) 14.8–34.5 |
35.5 (43.1) 26.8–53.8 |
|
| ||||||
| Oct./08 | 0.0 (0.8) 0-0 |
0.0 (2.0) 0-0 |
0.0 (0.5) 0-0 |
0.0 (0.8) 0-0 |
40.0 (45.3) 23.5–61.8 |
67.0 (67.9) 47–92.5 |
|
| ||||||
| Nov./08 | 0.0 (2.1) 0-0 |
0.0 (0.3) 0-0 |
0.0 (0.3) 0-0 |
0.0 (0.0) 0-0 |
9.0 (13.0) 5–23 |
∗32.5 (35.6) 10.5–53.3 |
|
| ||||||
| Dec./08 | 0.0 (3.4) 0-0 |
1.0 (9.5) 0–12 |
0.0 (0.1) 0-0 |
0.0 (0.1) 0-0 |
9.0 (12.3) 5–18.5 |
17.5 (21.9) 6.8–26.3 |
|
| ||||||
| Jan./09 | 0.0 (0.2) 0-0 |
0.0 (0.0) 0-0 |
0.0 (1.0) 0-1 |
2.0 (2.5) 0–3.3 |
9.0 (12.5) 5–14.3 |
14.0 (17.1) 7–26.5 |
|
| ||||||
| Feb./09 | 0.0 (0.3) 0-0 |
0.0 (0.8) 0-0 |
0.5 (1.8) 0–3 |
∗5.0 (8.0) 3.8–7.3 |
0.0 (0.7) 0-0 |
0.0 (0.6) 0–0.5 |
|
| ||||||
| Mar./09 | 0.0 (2.1) 0-0 |
0.0 (4.0) 0-1 |
0.0 (0.2) 0-0 |
0.0 (0.0) 0-0 |
1.0 (1.5) 0–2 |
∗6.0 (5.8) 5.5–6.3 |
|
| ||||||
| April/09 | 0.0 (0.4) 0-0 |
0.0 (0.0) 0-0 |
0.0 (0.0) 0-0 |
0.0 (0.0) 0-0 |
59.5 (68.2) 42.3–75.3 |
90.0 (93.8) 41–143.3 |
|
| ||||||
| May/09 | 0.0 (0.8) 0-0 |
0.0 (0.0) 0-0 |
0.0 (0.5) 0-1 |
0.5 (0.8) 0–1.3 |
32.0 (45.1) 18.3–57 |
∗82.5 (79.5) 42.3–103.8 |
|
| ||||||
| June/09 | 0.0 (0.8) 0-0 |
0.0 (0.0) 0-0 |
0.0 (0.1) 0-0 |
0.0 (0.4) 0-1 |
0.0 (2.7) 0–3.3 |
6.0 (6.4) 0.8–10 |
|
| ||||||
| July/09 | 5.0 (7.7) 0–10.5 |
0.0 (3.1) 0–5 |
0.0 (0.9) 0-0 |
∗5.0 (8.4) 0.5–7.5 |
1.0 (2.2) 0–3 |
0.0 (6.4) 0–2.5 |
|
| ||||||
| Aug./09 | 0.0 (1.0) 0-0 |
0.0 (0.9) 0-0 |
0.0 (2.5) 0–1.5 |
∗20.0 (32.7) 6.5–55.5 |
2.0 (2.6) 0.5–3 |
0.0 (0.4) 0-1 |
|
| ||||||
| Sept./09 | 0.0 (0.1) 0-0 |
0.0 (0.0) 0-0 |
3.0 (7.4) 1–7.5 |
∗12.0 (32.1) 7–37 |
7.0 (8.5) 3–12 |
5.0 (21.3) 3–24 |
|
| ||||||
| Total |
0.0 (3.1)
0–3 |
0.0 (2.4)
0–2 |
0.0 (0.8)
0-0 |
0.0 (4.4)
0–3 |
3.0 (12.1)
0.9–24.2 |
6.0 (21.4)
2.6–35.6 |
Group A: 1/4 Holstein × 3/4 Gir; Group B: 1/2 Holstein × 1/2 Gir.
Data are presented as median (mean) quartile 1–quartile 3.
∗Significant difference between groups A and B (P < 0.05; Mann-Whitney U test).