Effect of Heat Exposure on Gene Expression of Feed Intake Regulatory Peptides in Laying Hens
Table 2
Laying hens’ productive performance.
Control
Heat stress
P value
BW change (g/hen)
a
b
<0.001
Feed intake (g/hen/day)
a
b
0.005
Laying rate (%)
a
b
0.032
Average egg mass (g)
a
b
0.001
Egg production (g/hen/day)
a
b
<0.001
Shell thickness (mm)
a
b
<0.001
Feed/egg (g/g)
a
b
0.016
a, bMeans in the same line with different superscript differ significantly, ; Values indicate mean ± SEM. For feed intake, BW change, laying rate, egg production, and feed/egg analyses, /treatment; for shell thickness, .