Table 2. Reproductive performance of piglets during winter and summer.

Parameter	Winter	SEM	Summer	SEM	p-value
At birth
Litter size1)	11.97	0.84	12.37	0.91	0.75
Live born piglets/litter1)	11.18	0.75	11.28	0.81	0.92
Stillborn piglets/litter2)	0.21		0.33		0.57
Mummified piglets/litter2)	0.57		0.75		0.63
Weight (kg)1)	1.42	0.03	1.38	0.03	0.32
Weaning (day 21)
Litter size1)	10.34	0.34	10.27	0.37	0.89
Dead piglets/litter1)	0.84	0.74	1.013	0.80	0.87
Weight (kg)1)	6.33	0.10	6.25	0.11	0.58
Milk yield (kg/d)1)	11.17	0.69	10.36	0.79	0.45

¹⁾ANOVA GLM (p < 0.05).

²⁾Reproductive parameters were analyzed using proportions during two seasons.

SEM, standard error of the mean.