Abstract
Broiler behavior is closely related to the breeding environment. Therefore, studying broiler behavior helps breeding farm workers to better carry out welfare breeding. In the breeding environment of yellow feather broilers, temperature, humidity, and ammonia concentration are the main factors that affect the behavior of the broilers. This study used a multichromatic aberration model to process the color images of yellow feather broilers to extract the activity feature of the broilers at different periods, utilized the Cb component of YCbCr color model and the b component of Lab color model to remove background litter in images, and employed the Q component of YIQ color model to remove the feeders and the drinkers from the image. The segmented images were constructed into an accumulator to generate a heat map of yellow feather broilers' activity. Then, the correlation between the activity and the temperature and humidity index (THI) and the correlation between the activity and ammonia concentration were explored. The experiment found that the activity of the broilers was significantly positively correlated with ammonia concentration (P < 0.05), indicating that the activity of yellow feather broilers increased with ammonia concentration ascending. Besides, the THI in the broiler chamber had a significant positive correlation with the ammonia data (P < 0.01), indicating that when the THI in the broiler chamber increases, the ammonia concentration rises. The research provides a direction for exploring the impact of THI and ammonia concentration on the performance of yellow feather broilers. At the same time, it provides a theoretical basis for the early warning and judgment of broiler breeding by farm workers in the future.
Highlights
Animal behavior information is an important evaluation indicator of animal welfare
Abudabos et al [3] found that high-density broiler breeding in a short time will significantly increase the stress response of broilers and damage the welfare of broilers. e improvement of environmental factors or the use of existing environmental resources can benefit the activity level of broilers, which will have an impact on the behavior of broilers [4]
Based on the multichromatic aberration model, the collected yellow feather broiler images are segmented, and the image structure accumulator obtained by the segmentation is used to generate the yellow feather broilers’ activity heat map. en, we studied the impact of environmental factors such as ammonia, temperature, and humidity on the activity distribution of the yellow feather broilers
Summary
Animal behavior information is an important evaluation indicator of animal welfare. It can reflect the adaptation of the animal body to the environment help producers better manage livestock and poultry. En, we studied the impact of environmental factors such as ammonia, temperature, and humidity on the activity distribution of the yellow feather broilers. Based on the above analysis of different color models of yellow feather broiler images, the experiment used the Cb component and b component thresholds to remove the litter background and used the Q component threshold to segment the feeders and the broilers’ bodies.
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