Advanced Livestock Nutrition Practice Exam

Energy deficiencies in livestock primarily lead to reduced productivity and growth rates. When animals do not receive adequate energy from their diets, several physiological processes are affected. Energy is essential for maintenance, growth, reproduction, and overall health.

When energy intake is insufficient, livestock will prioritize maintaining their basic metabolic functions over growth and reproduction. This results in stunted growth, lower weight gain, and poorer feed conversion efficiency. Additionally, energy deficits can hinder the animal’s ability to perform in various productive capacities, such as milk production in dairy cows or muscle development in meat animals. Consequently, both overall productivity and growth rates decline, which can have long-term implications for economic efficiency and animal welfare.

On the contrary, the options regarding improved productivity, increased reproductive success, and enhanced immune responses reflect outcomes that are typically observed with adequate energy levels rather than deficiencies. A well-balanced energy supply is crucial for healthy reproduction and efficient immune function; without this, animals may struggle to conceive and may be more susceptible to diseases.