Table 5: Percent of light reduced over incubator and oxyhood by open weave and closed weave covers under daytime and nighttime conditions.

Source MeanSD df

Incubator
Daytime20−6.060.00*
 Open1043.748.96
 Closed1268.6210.01
Nighttime20−6.370.00*
 Open1020.0717.78
 Closed1264.5114.95

Oxyhood
Daytime202.030.06
 Open1092.62.05
 Closed1268.6210.01
Nighttime20−2.290.03*
 Open1071.5613.38
 Closed1282.9710.01

.