<p>The
automatic detection, counting and tracking of individual and flocked chickens
in the poultry industry is of paramount to enhance farming productivity and animal
welfare. Due to methodological difficulties, such as the complex background of
images, varying lighting conditions, and occlusions from e.g., feeding
stations, water nipple stations and barriers in the chicken rearing production floor,
it is a challenging task to automatically recognize and track birds using
computer software. Here, a deep learning model based on You Only Look Once
(Yolov5) is proposed for detecting domesticated chickens from videos with
varying complex backgrounds. A multiscale feature is being adapted to the Yolov5
network for mapping modules in the counting and tracking of the trajectories of
the chickens. The Yolov5 network was trained and tested on our dataset which resulted
in an enhanced tracking precision accuracy. Using Kalman Filter, the proposed
model was able to track multiple chickens simultaneously with the focus to
associate individual chickens across the frames of the video for real time and
online applications. By being able to
detect the chickens amid diverse background interference and counting them
precisely along with tracking the movement and measuring their travelled path
and direction, the proposed model provides excellent performance for on-farm
applications. Artificial intelligence enabled automatic measurements of chicken
behavior on-farm using cameras offers continuous monitoring of the chicken's
ability to perch, walk, interact with other birds and the farm environment, as
well as the assessment of dustbathing, thigmotaxis, and foraging frequency,
which are important indicators for their ability to express natural behaviors. This study highlights the potential of
automated monitoring of poultry through the usage of ChickTrack model as a
digital tool in enabling science-based animal husbandry practices and thereby
promote positive welfare for chickens in animal farming. </p>