Table 3.

Heart rate, estimated carbon dioxide production and energy expenditure in dogs^* fed the experimental protein–fat–carbohydrate (PFC) and protein–fat (PF) diets during days with rest at the kennel

(Least square means (LS-means) and 95 % confidence intervals)

	Diet				Period
	PFC		PF		1		2		P
	LS-mean	95 % CI	LS-mean	95 % CI	LS-mean	95 % CI	LS-mean	95 % CI	Diet	Period
Heart rate (bpm)	123	115, 130	119	111, 128	113	104, 121	129	121, 138	NS	<0·01
CO2 production(litres/kg BW0·75 per h)	2·0	1·4, 2·6	2·4	1·8, 3·0	1·8	1·2, 2·4	2·6	2·0, 3·2	NS	<0·01
Energy expenditure (kJ/kg BW0·75 per h)	53	37, 69	63	47, 79	48	32, 64	68	52, 84	NS	<0·01

bpm, Beats per min; BW^0·75, metabolic body weight.

^*Number of observations per treatment: n 8.