Table 3.

Composition of the experimental groups. The details of both experimental groups are presented. The differences in sex (independent samples t-test, P = 0.768), age (ANOVA, P = 0.601), and body weight (ANOVA, P = 0.185) were not significant between groups

	Standard	Thin-needle
n	15	37
males/females (P = 0.768)	7/8	16/21
FIV+	7	6
Average age [years] (P = 0.601)	11.3	11.1
Average body weight [kg] (P = 0.185)	4.78	3.92
Stage I	26.7%	43.2%
Stage II	26.7%	40.5%
Stage III	20.0%	13.5%
Stage IV	26.7%	2.7%