**Preface to "Precision Poultry Farming"**

The increase in the global population comes along with growing demands on protein resources. To meet such demands, the global production of poultry meat and eggs has skyrocketed in the past few decades and is projected to continue growing in decades to come. While poultry production makes crucial contributions to food and nutrition security, it uses substantial natural and human resources and has significant impacts on society, the economy, public health, and the environment. Although the extent of these impacts may vary among continents and countries due to differences in production practices and social structures and preferences, the global poultry industry, as a whole, should strive to keep improving sustainability and efficiency in its resource usage. Precision Poultry Farming (PPF) features applications of continuous, objective, and automated sensing technologies and computer tools for sustainable and efficient poultry production; it offers the poultry industry solutions to address challenges in terms of poultry management, the environment, nutrition, automation and robotics, health, welfare assessment, behavior monitoring, waste management, etc.

This Special Issue on "Precision Poultry Farming" was initiated in early 2020 by the Guest Editors with assistance from the Managing Editor of /Animals/. A total 12 high quality manuscripts were eventually published, covering a wide spectrum of the most recent research on PPF. The contributing authors come from Asia, Europe, North America, and South America. We appreciate all authors, as well as reviewers, for their contributions to this successful collection.

### **Yang Zhao, Mar´ıa Cambra-L ´opez, Daniella Jorge De Moura, and Weichao Zheng** *Editors*
