A Smarter Home for Calves

At a Glance

Researchers at Colorado State University have developed an improved hutch design for pre-weaned calves that enhances ventilation, heat regulation, and overall comfort. The system incorporates passive airflow features such as louvered vents, a roof vent, and a garage-style door to reduce heat stress and improve air quality. Early laboratory testing shows these prototypes outperform conventional plastic hutches in maintaining cooler internal temperatures. The designs are also engineered to be durable, stackable, and easy to sanitize for large-scale farm use. Field trials are planned to validate performance in real-world conditions.

Background

Many dairy calves in the United States spend the first 60–70 days of their lives in plastic hutches, where poor ventilation and heat stress are common challenges. When average daily temperatures exceed 71.6°F and the Temperature Humidity Index (THI) surpasses 70, calves face increased risks of heat stress, illness, and mortality. Inadequate housing conditions can reduce calf performance and increase raising costs for producers. Existing hutches are often difficult to clean, poorly ventilated, and not designed for extreme weather, leading farmers to create inconsistent modifications. This project introduces a data-driven, standardized solution to improve calf welfare and productivity.

Overview

The Colorado State University team redesigned traditional calf hutches using engineering principles and animal science insights to address airflow, durability, and usability limitations. The new prototypes feature louvered side vents, a roof vent for passive heat release, a garage-style front door for adjustable airflow, and rounded interior walls to improve circulation and sanitation. Additional design elements include a lifted front lip to prevent water intrusion, anchoring points for wind stability, and non-porous polyethylene materials for easy cleaning. The structures are stackable, durable, and designed to cost under $1,000 while maintaining manufacturability at scale. Laboratory testing of alpha and beta prototypes demonstrated improved heat dissipation, lower internal temperatures, and better air circulation. New prototypes produced via injection molding will undergo full-scale field testing with calves.