There are several case studies that require knowledge of biosecurity measures and animal welfare regulations in animal husbandry and veterinary science. These case studies focus on various aspects of animal health, disease prevention, and ethical treatment of animals. Here are a few examples:

1. Outbreak control in a poultry farm:
In this case study, a poultry farm experiences an outbreak of a highly contagious avian disease. The case requires knowledge of biosecurity measures to prevent the spread of the disease within and outside the farm. It also involves understanding animal welfare regulations to ensure the humane treatment of infected birds during control measures such as culling and quarantine.

2. Disease surveillance in a livestock population:
This case study involves monitoring and surveillance of a livestock population for a specific disease. It requires knowledge of biosecurity measures to prevent disease introduction and spread. Understanding animal welfare regulations is important to ensure the ethical handling of animals during sample collection and testing processes.

3. Assessing animal welfare in a dairy farm:
In this case study, the focus is on assessing the welfare of dairy cows in a farm. It requires knowledge of animal welfare regulations to evaluate various aspects such as housing conditions, feeding practices, and health management. The case study may involve identifying areas for improvement in order to enhance the overall welfare of the animals.

4. Biosecurity planning for a veterinary clinic:
This case study involves developing a comprehensive biosecurity plan for a veterinary clinic to prevent the introduction and transmission of infectious diseases. It requires understanding biosecurity measures such as proper hygiene practices, isolation protocols, and vaccination programs. Knowledge of animal welfare regulations is also important to ensure the well-being of animals during their stay at the clinic.

In all these case studies, it is essential to have a thorough understanding of biosecurity measures and animal welfare regulations in order to make informed decisions and ensure the health and welfare of animals. The knowledge of these measures and regulations helps in preventing disease outbreaks, implementing effective control measures, and providing ethical treatment to animals in various husbandry and veterinary settings.