Accelerated Growth Rate Induced by Neonatal High-Protein Milk Formula Is Not Supported by Increased Tissue Protein Synthesis in Low-Birth-Weight Piglets

Table 4

Relative weight (g/kg body weight) and dry matter (g/100 g tissue) measured in the liver, semitendinosus muscle and eviscerated carcass of fed NP, HP, and HPA diets at d7 and d28.

			d7					d28			Age effect
	NP	HP	HPA	SEM	P	NP	HP	HPA	SEM	P
Liver
Relative weight, g/kg  body weight	36.3	33.2	31.2	1.89	Ns	28.3	29.4	27.6	1.04	ns	<0.001
Dry matter content,  g/100 g of tissue	26.5^a	30.3^b	26.2^a	1.11	<0.05	27.0^a	29.2^b	26.3^a	0.59	<0.05	ns
Semitendinosus muscle
Relative weight, g/kg  body weight	2.5	2.9	2.7	2.69	Ns	2.5	3.1	2.1	0.31	ns	ns
Dry matter content,  g/100 g of tissue	19.5	19.5	19.8	0.61	Ns	23.5	21.3	24.2	1.39	ns	<0.001
Eviscerated carcass
Relative weight, g/kg  body weight	845.1^b	860.4^ab	888.5^b	11.4	<0.05	831.2	834.4	840.1	4.02	ns	<0.001
Dry matter content,  g/100 g of tissue	nd	nd	nd	—	—	nd	nd	nd	—	—	—

Values are least square means and pooled SEM calculated in pigs slaughtered at d7 and d28, 𝑛=6/group. P (effect of formula) and age effects are presented. Differences were considered significant when 𝑃<0.05 but trends are presented when 0.1 < 𝑃<0.05. Means with a different superscript letter differ at 𝑃<0.05. nd: not determined.