Table 1 Significance analysis of the correlated characteristics between Qingyuan partridge roosters at different age stages

body weight (g)

656.3 ± 35.7

652.7 ± 83.6

1089.5 ± 79.3

1075.2 ± 67.7

1421.7 ± 96.8

1455 ± 81.2

comb height (mm)

32.04 ± 4.99^A

21.52 ± 2.74^B

43.79 ± 3.95^A

36.50 ± 4.66^B

59.84 ± 5.36

56.89 ± 5.92

weight of left testis (g)

0.81 ± 0.54 ^A

0.08 ± 0.023 ^B

4.85 ± 1.67 ^A

2.08 ± 1.89 ^B

9.35 ± 2.1

8.48 ± 3.0

area of left testis (mm²)

0.83 ± 0.54 ^A

0.15 ± 0.15 ^B

437.6 ± 100.3 ^A

237.95 ± 163.2 ^B

812.63 ± 109.29

751.7 ± 168.97

weight of right testis (g)

0.7 ± 0.45 ^A

0.07 ± 0.02 ^B

4.07 ± 1.45 ^A

1.76 ± 1.63 ^B

8.15 ± 2.73

7.28 ± 2.99

area of right testis (mm²)

0.41 ± 0.38 ^A

0.13 ± 0.15 ^B

331.99 ± 82.7 ^A

196.4 ± 133.5 ^B

754.03 ± 225.81

671.65 ± 195.21

weight of total testes (g)

1.51 ± 0.98 ^A

0.15 ± 0.04 ^B

8.92 ± 3.11 ^A

3.83 ± 3.52 ^B

17.5 ± 4.81

15.77 ± 5.9

testis index

0.23 ± 0.15 ^A

0.02 ± 0.009 ^B

0.83 ± 0.3 ^A

0.36 ± 0.33 ^B

1.23 ± 0.39

1.08 ± 0.37