Table 3.

Results (ρ) of the Spearman’s rank correlation analysis comparing posture (Standing), position in the pen (Front) and behaviors recorded with continuous sampling and instantaneous sampling at different intervals [30 s, 1, 2, 3, 4, 5, and 10 min] on total time (not correcting for out of sight).

Continuous sampling		Standing	Front	Grooming	Nudging	Nursing	Moving away or displacing	Eating	Placenta ingestion	Self-grooming	Resting	Vocalization	Exploration and interaction with pen fixtures	Sniffing thelitter	Looking out of the pen	Not visible
Instantaneous sampling	30 s	0.97***	0.99***	0.99***	0.74***	1.00***	0.72***	0.96***	0.84***	0.86***	0.99***	0.70***	0.79***	0.92***	0.77 **	0.97***
	1 min	0.97***	0.99***	0.99***	0.54***	–	0.72***	0.89***	0.84***	0.72***	0.99***	0.39*	0.61***	0.86***	0.66***	0.93***
	2 min	0.94***	0.99***	0.98***	0.54***	–	–	0.83***	0.71***	0.57***	0.84***	0.39*	0.44**	0.80***	0.66***	0.88***
	3 min	0.91***	0.99***	0.92***	–	–	–	0.76***	0.77***	0.43**	0.69***	0.18	0.53**	0.64***	0.66***	0.90***
	4 min	0.91***	0.98***	0.92***	0.37*	–	–	0.68***	0.71***	0.50***	0.69***	0.18	0.44**	0.70***	0.66***	0.84***
	5 min	0.90***	0.98***	0.94***	0.54***	–	–	0.62***	0.51***	0.47**	0.77***	–	–	0.68***	–	0.81***
	10 min	0.80***	0.95***	0.84***	0.39*	–	–	0.62***	0.40**	0.27	0.41**	–	–	0.55***	–	0.72***

*p < 0.05; **p < 0.01; ***p < 0.001; − not applicable.