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. 2020 Oct 3;98(11):skaa320. doi: 10.1093/jas/skaa320

Table 3.

Proportion of time piglets was engaged in specific behaviors (n = 10 piglets per treatment group) postcastration

	Postcastration
Behavior¹	Treatment P-value	CO₂ laser	Scalpel	Sham
Tail wagging	0.0257	0.02 ± 0.00^a	0.00 ± 0.00^ab	0.00 ± 0.00^b
Trembling	0.0493	0.07 ± 0.07^a	0.02 ± 0.02^b	0.04 ± 0.05^ab
Desynchronized	0.0446	0.18 ± 0.07^a	0.05 ± 0.03^b	0.16 ± 0.06^ab
Agonistic	0.0038	0.01 ± 0.00^a	0.00 ± 0.00^b	0.00 ± 0.00^b
Pain²	0.0257	0.06 ± 0.01^a	0.02 ± 0.00^b	0.03 ± 0.01^ab

¹Only significant behavior variables are presented.

²Pain behaviors include: scratching, stiffness, trembling, and tail wagging.

^a,bValues within a row with different superscripts are significantly different (P < 0.05).