Effects of dietary menthol-rich bioactive lipid compounds on zootechnical traits, blood variables and gastrointestinal function in growing sheep

Table 6 The effect of menthol-rich PBLC on concentrations (μmol/L) of free amino acids in serum of sheep

Item	Treatment^a			SEM	Contrast^b
Item	Control	PBLC-L	PBLC-H		1	2	3
Ala	60	61	61	0.6	0.30	0.45	0.20
Val	118	120	118	2.4	0.96	0.50	0.70
Leu	133	137	137	1.8	0.14	0.49	0.11
Ile	133	136	136	1.3	0.19	0.46	0.14
Phe	223	227	228	2.5	0.17	0.63	0.15
Met	154	154	154	0.6	0.75	0.92	0.82
Pro^c	103	105^#	105	1.0	0.12	0.32	0.072
Gly^c	60	66^#	59	2.5	0.85	0.058	0.41
Ser	82	82	84	1.7	0.42	0.72	0.60
Cys	200	200	201	0.7	0.13	0.39	0.37
Thr	113	115	115	1.2	0.30	0.50	0.22
Tyr	289	298	290	4.3	0.84	0.11	0.32
Asp+Asn^c	121	125^#	128*	1.4	0.005	0.79	0.009
Glu + Gln^c	160	174*	174*	4.5	0.041	0.22	0.020
Lys^c	147	148	152*	1.5	0.054	0.50	0.17
His	171	171	168	1.9	0.31	0.62	0.52
Arg	345	353	341	11.9	0.81	0.41	0.83
Total	2611	2672	2651	32.0	0.42	0.52	0.68

SEM standard error of mean
^aControl: without PBLC; PBLC-L: lower dose (80 mg/d) of PBLC; and PBLC-H: higher dose (160 mg/d) of PBLC
^bContrast: 1 = linear effect; 2 = quadratic effect; and 3 = Control versus both PBLC groups
^cSince CP intake could be a factor affecting serum amino acid concentrations, CP intake was used as covariate for amino acids those resulted in P < 0.10, and the statistical results are provided in the text
^#/*Mean values differ compared with the control at P < 0.10/0.05

ISSN: 2049-1891