Effects of magnesium on the performance of sows and their piglets

Table 2 Effects of supplemental magnesium on performance of gilts and their progeny (Exp. 1)

Item	Supplemental magnesium, %				SEM¹	P value
Item	0	0.015	0.03	0.045	SEM¹	Linear	Quadratic
Number born per litter²	11.2	11.7	12.0	11.6	0.48	0.46	0.51
Number of pigs born alive per litter	10.3	10.8	10.9	10.4	0.38	0.76	0.44
Average pig weight at birth, kg	1.40	1.42	1.43	1.32	0.06	0.42	0.36
Pigs weaned per litter	9.4	9.6	9.7	9.3	0.26	0.88	0.44
Average pig weight at weaning, kg	7.02	6.91	7.01	6.89	0.34	0.24	0.96
Wean to estrus interval, d	7.4	6.6	6.9	6.3	0.25	0.01	0.04
Constipation rate³, %	57.1	50.0	32.1	21.4	0.36	0.03	0.35
Average daily lactation feed intake of gilts, kg	4.82	4.86	4.81	4.79	0.70	0.72	0.51

¹SEM = Standard error of mean.
²Number of litters represented per dietary treatment.
³Constipation rate (%) was defined as numbers of pigs on a treatment with constipation/(total number of pigs × 28d) × 100%.

ISSN: 2049-1891