Effect of dietary stable isotopic ratios of carbon and nitrogen on the extent of their incorporation into tissues of rats

Table 4 Influence of diet δ¹³C values (‰) on δ¹³C incorporation into tissues in Trial 2

Tissues	Treatments		Time, d					P value
	δ¹³C = −21.76‰	δ¹³C = −19.34‰	0	3	7	14	21	SEM	Group	Time	Group × Time
	δ¹⁵N = 0.53‰	δ¹⁵N = 4.73‰
Liver	−19.78^b	−18.44^a	−18.95^ab	−19.43^b	−19.87^b	−20.12^b	−17.65^a	0.32	< 0.01	< 0.01	0.31
Muscle	−19.95^b	−19.46^a	−19.32^a	−19.66^ab	−19.85^ab	−19.97^a	−19.70^ab	0.14	< 0.01	0.20	0.15
Blood	−19.80^b	−18.92^a	−19.20^a	−19.14^a	−19.54^a	−19.54^a	−19.52^a	0.11	< 0.01	0.15	0.07
Lipid	−23.14^a	−22.60^a	−22.49^ab	−22.01^a	−22.64^ab	−23.45^bc	−23.91^c	0.28	0.07	< 0.01	0.63

^{a, b, c} Mean values within a row with unlike superscript letters were significantly different (P < 0.05).

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