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. 2019 Sep 3;98(12):6826–6836. doi: 10.3382/ps/pez420

Table 9.

Effects of dietary threonine levels on gene expression levels in chick embryos from breeder hens of yellow-feathered chickens.

Thr supplementation (bold) and (total dietary content, %) P-value2
Variable 0.00 0.24 0.48 Thr L Q
(0.38) (0.62) (0.86) SEM1
In liver
 pTOR 1.46b 1.82a 1.70 a 0.05 0.001 0.003 0.001
 GOT 0.69 0.94 0.75 0.05 0.08
 GPT 0.30 0.36 0.39 0.03 0.63
 TDH 1.74 1.70 1.63 0.04 0.85
In thigh muscle
 pTOR 1.25 1.21 1.30 0.02 0.21
 TDH 0.59 b 0.68a 0.70a 0.02 0.03 0.02
In breast muscle
 pTOR 0.18b 0.20b 0.30a 0.02 0.04 0.02
 TDH 0.60 0.65 0.61 0.01 0.44
In ileum
 ANPEP 0.63b 0.69a,b 0.75a 0.02 0.05 0.02
 B0AT1 0.18 0.14 0.21 0.02 0.27
 MUC2 0.67 0.67 0.65 0.03 0.94
 PepT1 0.59 0.57 0.59 0.03 0.96
In duodenum
 ANPEP 0.90b 0.95b 1.10a 0.03 0.002 0.001
 B0AT1 0.76 0.73 0.68 0.02 0.35
 MUC2 0.93 0.94 0.96 0.02 0.82
 PepT1 0.47 0.48 0.42 0.03 0.71

1Means within each row with different superscripts are significantly different (P < 0.05). Standard error of the mean from ANOVA (n = 6).

2

Thr = treatment effect; when significant, linear (L) and quadratic (Q) effects were tested.

pTOR, poultry target of rapamycin; GOT, glutamic oxaloacetic transaminase; GPT, glutamic-pyruvic transaminase; TDH, threonine dehydrogenase; ANPEP, aminopeptidase; B0AT1, neutral amino acid transporter; MUC2, mucin 2; PepT1, peptide transporter 1.