Net absorption and liver metabolism of amino acids and heat production of portal-drained viscera and liver in multiparous sows during transition and lactation

Hu, Liang; Kristensen, Niels Bastian; Che, Lianqiang; Wu, De; Theil, Peter Kappel

doi:10.1186/s40104-019-0417-7

Journal of Animal Science and Biotechnology

Table 7 Hepatic extraction of amino acids in sows during late gestation and in early and peak lactation¹

From: Net absorption and liver metabolism of amino acids and heat production of portal-drained viscera and liver in multiparous sows during transition and lactation

Item	DIM²				SEM	ST²								SEM	P-value
	−10	− 3	3	17		−0.5	0.5	1.5	2.5	3.5	4.5	5.5	6.5		DIM	ST	ST×DIM
Essential AA, %
Lys	2.8^bc	5.3^a	4.5^ab	1.4^c	0.7	1.2^d	4.5^ab	6.1^a	3.9^abc	2.0^cd	4.1^abc	3.6^abcd	2.6^bcd	1.0	< 0.001	0.008	0.09
Met	−4.1	−4.1	(−0.7)	−1.8	2.4	−7.0	−3.1	(− 0.8)	1.8	1.1	−4.0	−6.9	−2.5	3.0	0.64	0.11	0.13
Thr	1.6	2.9	2.7	2.1	0.6	2.1	3.6	3.2	1.8	(0.6)	2.6	2.5	2.5	0.8	0.32	0.09	0.22
Trp	3.5	4.4	3.6	4.4	0.5	3.1	4.3	3.6	3.9	4.6	4.6	4.3	3.5	0.7	0.39	0.42	0.59
Ile	(0.7^bc)	2.6^a	2.3^ab	(0.2^c)	0.7	−1.1^c	2.4^a	2.5^a	2.0^ab	(0.0^b)	2.8^a	1.6^ab	1.4^ab	0.9	0.03	0.006	0.54
Leu	1.0	2.8	2.0	1.3	1.1	−1.6	3.1	3.4	2.4	(0.9)	2.2	2.9	(0.8)	1.5	0.42	0.05	0.55
Val	−0.7^b	1.4^a	(0.3^ab)	(−0.6^b)	0.6	−2.2^b	(0.2^a)	1.2^a	(0.3^a)	1.2^a	(0.8^a)	(−0.5^ab)	(0.0^ab)	0.9	0.03	0.02	0.41
His	7.1	7.2	7.0	6.7	1.2	7.6	7.4	5.6	6.0	8.5	6.4	5.2	9.2	1.7	0.98	0.53	0.79
Phe	12.5	13.9	10.4	12.3	1.2	10.4	12.3	12.9	13.3	12.4	13.5	12.3	11.3	1.3	0.07	0.40	0.37
Non-essential AA, %
Ala	16.6	16.3	19.7	19.4	1.8	19.4	17.2	17.8	18.1	16.8	18.1	17.5	19.2	1.8	0.05	0.19	< 0.001
Asn	16.4	20.5	23.4	21.2	1.9	20.4	21.8	23.2	18.8	17.7	19.4	20.2	21.3	2.2	0.12	0.50	0.004
Asp	8.1	8.8	7.3	8.7	1.5	4.8	10.9	10.0	6.9	6.2	9.1	8.5	9.3	1.8	0.86	0.07	0.28
Cys	4.3^a	5.0^a	2.4^b	3.5^ab	0.6	2.4^c	5.3^a	4.4^ab	3.3^bc	3.3^bc	4.2^ab	3.6^abc	3.9^abc	0.7	0.02	0.01	0.91
Glu	−72.2^b	−71.8^b	−85.8^a	−63.8^b	5.2	−73.7^ab	−65.8^c	−73.8^ab	−72.0^ab	−71.8^b	−77.5^ab	−71.0^b	−81.7^a	4.6	0.02	0.005	0.13
Gly	8.9	9.2	9.6	10.3	0.9	10.7^ab	9.0^bc	8.9^bc	8.2^c	8.2^c	9.5^bc	9.8^abc	11.6^a	1.1	0.38	0.03	0.005
Pro	3.1	4.2	2.5	2.6	0.7	3.0	3.2	3.6	3.4	1.9	3.6	3.1	3.2	1.0	0.23	0.76	0.16
Ser	13.4^a	12.6^a	6.7^b	9.0^ab	1.7	6.0^d	13.1^ab	14.5^a	12.3^ab	9.4^cd	10.7^bc	8.2^cd	9.1^cd	1.5	0.02	< 0.001	0.02
Tyr	10.0	10.8	10.3	10.1	0.9	9.4	10.9	11.0	9.9	9.5	10.7	9.5	11.5	1.1	0.85	0.46	0.49
Gln	4.6^b	5.9^b	10.9^a	6.3^b	1.6	7.8	8.1	5.3	5.9	8.0	6.2	8.4	5.7	1.8	0.03	0.56	0.61

^a–dWithin a row and within a main effect (DIM, ST), means with different letters differ
¹Values presented in parenthesis are not significantly different from zero. ²DIM days in milk, ST sampling time

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