Related Experiment Video

Updated: Jul 16, 2026

Determining the Contribution of the Energy Systems During Exercise
11:15

Determining the Contribution of the Energy Systems During Exercise

Published on: March 20, 2012

Contributions of animal nutrition research to nutritional principles: energetics

Donald E Johnson

    The Journal of Nutrition
    |February 22, 2007
    PubMed

    Keywords:
    Metabolic ratesEnergy regulationAnimal physiologyNutritional principles

    More Related Videos

    Measuring Liver Mitochondrial Oxygen Consumption and Proton Leak Kinetics to Estimate Mitochondrial Respiration in Holstein Dairy Cattle08:29

    Measuring Liver Mitochondrial Oxygen Consumption and Proton Leak Kinetics to Estimate Mitochondrial Respiration in Holstein Dairy Cattle

    Published on: November 30, 2018

    Body Composition and Metabolic Caging Analysis in High Fat Fed Mice10:28

    Body Composition and Metabolic Caging Analysis in High Fat Fed Mice

    Published on: May 24, 2018

    Related Concept Videos

    Production Efficiency01:01

    Production Efficiency

    Net production efficiency (NPE) is the efficiency at which organisms assimilate energy into biomass for the next trophic level. Due to low metabolic rates and less energy spent on thermoregulatory processes, the NPE of ectotherms (cold-blooded animals) is 10 times higher than endotherms (warm-blooded animals).
    Optimal Foraging00:48

    Optimal Foraging

    How animals obtain and eat their food is called foraging behavior. Foraging can include searching for plants and hunting for prey and depends on the species and environment.
    Parentral Nutrition: Centeral and Peripheral Parental Nutrition01:27

    Parentral Nutrition: Centeral and Peripheral Parental Nutrition

    Parenteral Nutrition (PN) delivers essential nutrients directly into the bloodstream, bypassing the digestive system. It is commonly used for individuals with severe digestive disorders or conditions that prevent normal nutrient absorption.
    PN can be administered through two primary routes:
    1. Central Parenteral Nutrition (CPN):
    CPN involves delivering a high concentration of nutrients through a large vein. This is typically achieved using a Peripherally Inserted Central Catheter (PICC) or,...
    Key Elements for Plant Nutrition02:35

    Key Elements for Plant Nutrition

    Like all living organisms, plants require organic and inorganic nutrients to survive, reproduce, grow and maintain homeostasis. To identify nutrients that are essential for plant functioning, researchers have leveraged a technique called hydroponics. In hydroponic culture systems, plants are grown—without soil—in water-based solutions containing nutrients. At least 17 nutrients have been identified as essential elements required by plants. Plants acquire these elements from the atmosphere, the...
    Energy Budgets and Reproductive Strategies00:51

    Energy Budgets and Reproductive Strategies

    Organisms must balance energy intake with the energy required for growth, maintenance, and reproduction. These trade-offs result in a variety of survivorship and reproductive strategies, including semelparity and iteroparity. Semelparous species reproduce only once in their lifetime, often investing most available resources into that single reproductive event. Iteroparous species, by contrast, reproduce multiple times over their lifetimes, typically allocating fewer resources to any single...
    Energy Balance01:19

    Energy Balance

    The human body gets energy from the three macronutrients: carbohydrates, proteins, and fats. Energy is released when the chemical bonds in the organic compounds present in the food are broken down. The energy content of food is measured in kilocalories (kcal), defined as the amount of heat required to raise the temperature of one kilogram of water by one degree Celsius. This value is determined by measuring the temperature change of the water surrounding a calorimeter after the complete...