Table 3 Average first mating information of 97,998 mating out of 112,157 gilts in 1540 gilts’ batches

Number of gilts' batches

235

948

357

Total number of mating

19,819

43,867

34,312

Mating rate at first estrus¹

54.9% ± 2.6%^a

74.6% ± 1.2%^b

63.9% ± 2.1%^c

Mating rate at second or more estrus²

18.4% ± 1.9%^a

2.6% ± 0.4%^b

1.9% ± 0.5%^b

Mating rate under 135 kg³

12.8% ± 1.7%^a

20.0% ± 1.2%^b

7.3% ± 1.2%^ac

Mating rate between 135 and 145 kg⁴

47.9% ± 2.5%

50.6% ± 1.5%

50.5% ± 2.2%

Mating rate above 145 kg⁵

12.6% ± 1.6%^a

6.6% ± 0.7%^b

7.9% ± 1.3%^b

Mating rate under 210 d⁶

7.2% ± 1.2%^a

8.9% ± 0.8%^a

13.6% ± 1.6%^b

Mating rate between 210 and 240 d⁷

24.6% ± 1.9%

23.5% ± 1.2%

23.3% ± 2.0%

Mating rate above 240 d⁸

41.5% ± 2.3%^a

44.8% ± 1.4%^a

28.9% ± 1.9%^b

Total average mating rate⁹

73.3% ± 2.2%^a

77.2% ± 1.2%^a

65.8% ± 2.1%^b

Average times of estrus at first mating ¹⁰

2.4 ± 0.96^a

0.9 ± 0.03^b

1.2 ± 0.26^b

Average age at first mating¹¹

216 ± 5.99^a

224 ± 3.21^b

213 ± 5.33^ab