Fig. 1.

Fig. 2.

Fig. 3.

Fig. 4.

Fig. 5.

Mean body weight of singleton and twin Polish Uhruska ewes and differences in that weight at age points up to the 10th month
| Age (months) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 0 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | ||
| Mean body weight ± SD (kg) | Singletons | 5.60 ± 0.6 | 32.16 ± 4.6 | 34.69 ± 4.1 | 35.26 ± 4.2 | 37.57 ± 4.2 | 37.96 ± 3.9 | 39.27 ± 3.8 | 40.96 ± 3.9 |
| Twins | 4.70 ± 0.5 | 29.51 ± 5.1 | 31.86 ± 3.2 | 33.11 ± 2.9 | 35.97 ± 2.9 | 36.68 ± 3.1 | 38.23 ± 2.7 | 39.15 ± 2.6 | |
| Difference in mean body weight (%) | 16.07 | 8.24 | 8.16 | 6.10 | 4.26 | 3.37 | 2.65 | 4.42 | |
Pearson correlation coefficients (r) (P ≤ 0_05) between plasma concentrations of KiSS-10, NKB and Dyn A in singleton and twin Polish Uhruska ewes between their 4th and 10th months of life
| KiSS-10 | NKB | Dyn A | ||
|---|---|---|---|---|
| KiSS-10 | – | 0.86 | –0.55 | |
| Singletons | NKB | 0.86 | – | –0.89 |
| DynA | –0.55 | –0.89 | – | |
| KiSS-10 | – | 0.89 | –0.98 | |
| Twins | NKB | 0.89 | – | –0.94 |
| DynA | –0.98 | –0.94 | – |