University of Illinois Extension
4-H School Enrichment Programs
Rock Island County

Animals in Agriculture: Their Growth and Development

Students compare common food products with a complete livestock feed, checking for protein, sugar, starch, fat, and vitamin C. They dissect a chicken wing, comparing it with the parts and functions of the human arm. Scale animal models are used to help learn about livestock weight estimates and weight gain. Within these lessons, students will:

  • Determine the presence of fat, protein, vitamin C, and carbohydrates
  • Recognize that different foods and feed have different components
  • Follow directions necessary for successfully conducting an experiment
  • Observe and record data resulting from an experiment
  • View the chicken as a specimen of biological interest
  • Dissect a chicken wing in a systematic manner
  • Estimate weights of mature market animals
  • Determine total feed consumed and days to market weight for various livestock species
University of Illinois at Urbana Champaign College of Agricultural Consumer & Environmental Sciences University of Illinois Extension