Table 3 LSB and unsuccessful matings in relation to age of the bitch at whelping or mating
From: Factors affecting reproductive performance in the Swedish Bernese mountain dog
Outcome | ||||||
|---|---|---|---|---|---|---|
LSB | Unsuccessful matings | |||||
Factor | Factor level | Mean ± SD (n) | P-value | Proportion (n) | OR (95% CI) SE* | P-value |
Bitch age | 1–2 | 6.4 ± 2.9 (242) | < 0.001a | 33.9 (366) | 0.037 | < 0.001a |
3 | 6.2 ± 3.0 (237) | – | 36.8( 375) | – | – | |
4 | 5.8 ± 2.9 (168) | – | 36.4 (264) | – | – | |
5 | 5.7 ± 3.1 (100) | – | 45.36 (183) | – | – | |
≥ 6 | 5.0 ± 2.3 (51) | – | 48.5 (99) | – | – | |
Male age | 1 | 6.1 ± 3.0 (106) | 0.021a | 30.1 (156) | 0.075 | < 0.001a |
2 | 6.2 ± 2.8 (176) | – | 33.8( 284) | – | – | |
3 | 6.4 ± 2.9 (163) | – | 37.8 (254) | – | – | |
4 | 6.0 ± 3.2 (139) | – | 36.4 (206) | – | – | |
5 | 5.7 ± 2.7 (89) | – | 42.5 (160) | – | – | |
6 | 5.8 ± 2.9 (73) | – | 42.0(119) | – | – | |
≥ 7 | 5.2 ± 2.8 (50) | 49.5 (97) | – | – | ||
Parity | 1 | 6.1 ± 3.0 (426) | 0.14b | 39.4 (704) | Reference | Reference |
2 | 6.1 ± 3.0 (236) | – | 33.0 (349) | 0.53 (0.37–0.75) | < 0.001 | |
3 | 5.8 ± 2.7 (98) | – | 43.4 (175) | 0.61 (0.37–1.02) | 0.058 | |
≥ 4 | 5.4 ± 2.7 (38) | – | 33.3 (57) | 0.35 (0.17–0.78) | 0.010 | |
Season | Winter | 6.0 ± 3.1 (174) | 0.23b | 34.1 (264) | Reference | 0.50a |
Spring | 6.3 ± 3.0 (291) | – | 37.6 (465) | 1.13 (0.80–1.60) | – | |
Summer | 5.9 ± 2.8 (178) | – | 38.7 (292) | 1.15 (0.79–1.69) | – | |
Autumn | 5.8 ± 2.8 (155) | – | 41.9 (265) | 1.35 (0.92–2.00) | – | |