. 2022 Jan 5;13:1. doi: 10.1186/s40104-021-00651-6

Table 4.

Effects of constant chronic heat stress on pH value of small intestine segments in growing-finishing pigs

Items	Treatments			P-value
Items	TN	HS	PF	P-value
Duodenum	5.33 ± 0.48	4.96 ± 0.19	4.34 ± 0.62	0.337
Jejunum	6.37 ± 0.14^ab	6.02 ± 0.20^b	6.58 ± 0.08^a	0.042
Ileum	6.58 ± 0.10^ab	6.21 ± 0.19^b	6.67 ± 0.10^a	0.060

TN, thermal neutral conditions (25 ± 1 °C); HS, heat stress conditions (35 ± 1 °C); PF, pair-fed with HS under TN conditions (25 ± 1 °C). Data were expressed as mean ± SEM (n = 8 for TN and PF, n = 7 for HS). Treatments with different superscript letters were significantly different at P < 0.05