Table 3 General characteristics and prevalence of alterations in rams of farms visited for the clinical examinations
Variable | Min. | Perc. 25 | Mean ± SEM | Perc. 75 | Max. |
|---|---|---|---|---|---|
Total number of ewes | 264 | 530 | 878 ± 126 | 990 | 4770 |
Ram:ewe ratio | 1:21 | 1:28 | 1:37 ± 1.8 | 1:45 | 1:61 |
Percentage of rams | 1.6 | 2.2 | 2.8 ± 0.1 | 3.5 | 4.6 |
Suitable rams for breeding (%) | 1.4 | 2.0 | 2.5 ± 0.1 | 2.9 | 3.7 |
Effective rams (%) | 0.3 | 1.6 | 2.1 ± 0.1 | 2.3 | 3.5 |
Age of rams (months) | 28.79 | 38.92 | 45.16 ± 1.45 | 50.31 | 67.64 |
Age of rams at first breeding (Months) | 7 | 8 | 10 ± 0 | 12 | 18 |
Ewes’ turnover (%) | 8.0 | 14.1 | 16.0 ± 0.6 | 18.0 | 23.0 |
Rams’ turnover (%) | 7.0 | 15.0 | 19.5 ± 1.1 | 23.0 | 35.3 |
BCS (1 – 5) | 2.63 | 2.97 | 3.26 ± 0.06 | 3.51 | 4.16 |
Prognathism | 0.00 | 0.00 | 0.05 ± 0.02 | 0.02 | 0.51 |
Testicular alterations | 0.00 | 0.00 | 0.06 ± 0.01 | 0.11 | 0.29 |
Genital alterations (severe) | 0.00 | 0.03 | 0.12 ± 0.03 | 0.15 | 0.69 |
Non-genital alterations (severe) | 0.00 | 0.00 | 0.08 ± 0.01 | 0.13 | 0.23 |
Risk of failure | 0.00 | 0.09 | 0.19 ± 0.03 | 0.22 | 0.85 |