Figure 1
From: Environmental complexity positively impacts affective states of broiler chickens

Least squares mean estimates (± SEM) for latency to approach (s) all five cues (positive [P], near positive [NP], middle [MID], near neutral [NN], and neutral [N]) in the judgement bias test for 4 test rounds (n = 9). Means with different superscripts (a–d) differ at p < 0.001.