. 2020 Jul 31;99(10):4824–4831. doi: 10.1016/j.psj.2020.06.071

Table 3.

Effects of chitosan oligosaccharides on relative weight (g/kg BW) of yellow-feather broilers under heat stress.

Item	Control	HS	HSC	SEM
Thymus	2.95^a	1.84^b	2.52^a	0.26
Spleen	1.88	1.62	1.72	0.13
Bursa of Fabricius	1.13^a	0.72^b	1.12^a	0.11
Pancreas	1.92^a	1.37^b	1.41^b	0.12
Proventriculus	3.38^a	2.44^b	2.70^b	0.18
Gizzard	20.91^a	14.58^b	15.58^b	1.35
Liver	20.62^a	15.93^b	18.14^c	0.76
Heart	4.42	3.97	4.39	0.14
Abdominal fat	12.30	13.41	11.64	1.92

^a,bWithin the same row with different superscripts differ (P < 0.05).

Abbreviations: COS, chitosan oligosaccharides; Control group, basal diet and raised under normal temperature (24°C); HS group, basal diet and raised under cycle heat stress (34°C from 10:00 to 18:00 and 24°C for the rest time); HSC group, basal diet with 200 mg/kg COS supplementation and raised under cycle heat stress.