Table 6.

Uterine diameter in sows day 3, 5, 7 and once between day 23 and 25 after farrowing of the two study groups C = negative control group, received no feed additive and 1,25-vitD = 1,25-vitD group, received a defined amount of 1,25-dihydroxyvitamin D3-glycosides: 1th to 84th gestation day: 26 g 1,25-vitD per day; 85th gestation day until farrowing: 30 g 1,25-vitD per day; during the lactation period: 70 g 1,25-vitD per day) No significant differences between the two groups were observed

Time of sampling	C (mm) Mean ± SD	1,25-vitD (mm) Mean ± SD	p-value
Sono d3	25.49 ± 4.2	26.73 ± 4.5	0.17
Sono d5	21.79 ± 3.6	22.26 ± 3.3	0.50
Sono d7	18.63 ± 2.6	19.48 ± 2.7	0.12
Sono d24	13.75 ± 1.8	13.80 ± 2.2	0.98