High nutrient intake during the early postnatal period accelerates skeletal muscle fiber growth and maturity in intrauterine growth-restricted pigs

Table 3 Effects of the level of nutrient intake on the muscle weights and lengths, muscle to body weight ratios, and brain to muscle ratios of intrauterine growth-restricted (IUGR) and normal birth weight (NBW) pigs

Items	ANI		HNI		SEM	P value
Items	IUGR	NBW	IUGR	NBW	SEM	BW	NI	BW × NI
ST weight, g	16.5^a	27.3^b	19.9^a	30.8^b	4.52	< 0.001	0.167	0.972
ST length, cm	5.8^a	6.9^b	6.7^a,b	7.3^b	0.68	0.028	0.095	0.471
ST: BW, %	0.30	0.37	0.29	0.35	0.06	0.048	0.662	0.752
Brain: ST	3.66^b	2.21^a	3.31^b	1.92^a	0.60	0.001	0.320	0.921
PM weight, g	15.3^a	23.9^b	21.5^b	30.0^c	2.46	< 0.001	< 0.001	0.995
PM length, cm	7.5^a	9.5^b	9.4^b	10.6^b	0.93	0.005	0.006	0.416
PM: BW, %	0.28^a	0.32^a,b	0.32^a,b	0.34^b	0.03	0.048	0.085	0.429
Brain: PM	3.81^c	2.57^b	2.97^b	1.90^a	0.38	< 0.001	0.002	0.666

Data are presented as mean values with their standard errors, n = 6 in each group. Mean values within a row with different superscript letters (a, b, c) were significantly different between four groups (P < 0.05)
ANI adequate nutrient intake, HNI high nutrient intake, BW body weight, NI nutrient intake, ST semitendinosus, PM psoas major

ISSN: 1865-3499