Cow portholes, or fistulas, are surgically created openings that provide researchers direct access to a cow’s stomach, specifically its rumen. These openings, often fitted with a plastic or rubber ring, allow for continuous monitoring of digestion without invasive procedures, improving research efficiency and reducing stress on the animals.
These portholes aid in developing better nutritional strategies, reducing methane emissions from cattle, and enabling proactive health management. While unusual, cow portholes have revolutionized agricultural studies, promoting animal welfare, sustainability, and more effective farming practices.
