. 2023 Aug 24;16(8):1721–1726. doi: 10.14202/vetworld.2023.1721-1726

Table-4.

Feeding strategy effects on heart rate and heart rate variability.

HRV parameter	Unit	B_H (Mean ± SD)	T_H (Mean ± SD)
HR	BPM	96.50^a ± 13.48	106.00^b ± 15.64
RRI	ms	675.50^a ± 92.97	585.50^b ± 80.66
SDNN	ms	165.50^a ± 47.19	121.00^b ± 42.17
RMSSD	ms	144.50^a ± 44.13	100.75^b ± 35.17
PNN50	%	43.25^a ± 11.64	26.50^b ± 12.40

^a,bDifferent letters represent significant differences (p < 0.05), HR=Heart rate, HRV=Heart rate variability, BPM=Beat per minute, RRI=RR interval, SDNN=The standard deviation of normal sinus beats, RMSSD=The root mean square of successive differences between normal heartbeats, PNN50=The percentage of adjacent NN intervals that differ from each other by more than 50 ms, B_H=Feeding bowl treatment in the HRV experiment, T_H=Feeding toy treatment in the HRV experiment