How do you calculate metabolizable energy?

Universal values for metabolizable energies

  1. For proteins: MEp = HCp (Ap) − Up = 5.65 (0.92) − 1.25 = 4.0 kcal per gram of protein.
  2. For fats: MEf = HCf (Af) = 9.4 (0.95) = 8.9 kcal per gram of fat.
  3. For carbohydrates: MEc = HCc (Ac) = 4.1 (0.97) = 4.0 kcal per gram of carbohydrate.

How do you calculate digestible energy?

For example, Digestible Energy (DE), the value utilized in equine nutrition, is calculated by subtracting the gross energy in the feces from the gross energy consumed by the animal. In other words, the Digestible Energy is the amount of energy an animal consumes minus what is lost in the manure.

What is the metabolizable energy?

Metabolizable Energy (ME) is the net energy remaining after fecal and urinary energy loss, and represents the energy available for growth or reproduction and for supporting metabolic processes such as work (locomotion) and respiration (thermoregulation, maintenance metabolism, HIF).

How do you calculate gross energy?

The NRC equations for dogs first calculate gross energy (GE) using the equation GE = 5.7× g protein +9.4× g fat +4.1× (g NFE + g fiber). Energy digestibility coefficients are then calculated for dogs as (91.2–1.43× percentage crude fiber in DM).

What is the difference between metabolizable energy and gross energy?

The gross energy (GE) in a food is defined as the total chemical energy measured from complete combustion of the food in a bomb calorimeter [2]. Metabolizable energy refers to DE minus energy lost in urine plus energy lost as gaseous products of digestion.

What is the energy of corn?

Corn (3,891 kcal/kg) and DDGS (3,694 kcal/kg) contained the next greatest concentrations of metabolizable energy. Hominy feed (3,675 kcal/kg) and bakery meal (3,655 kcal/kg) did not differ from DDGS, but contained less (P < 0.01) metabolizable energy than corn.

How much digestible energy is hay?

Energy. The energy or calories that a forage supplies are typically reported as digestible energy in megajoules per kilogram (DE MJ/Kg). In the UK, hay values can range from 4-10MJ/Kg and haylage from 6-12MJ/Kg.

What is gain energy?

Gain Energy Ltd. is a privately owned company. The assets consist of producing oil and gas properties in Alberta, Saskatchewan and British Columbia of approximately 14,000 boe per day, with a land base in excess of 380,000 net acres.

Is metabolizable energy the same as KCAL?

The fully fermentable fraction of fiber (or any unabsorbed carbohydrate, e.g., from polyol) has in general a net metabolizable energy value of 2 kcal g−1, while for the indigestible and nonfermentable fraction it is 0 kcal g−1 (1 kcal = 4.184 kJ).

What is the difference between digestible energy and metabolizable energy?

Digestible energy refers to GE minus energy lost in feces. Metabolizable energy refers to DE minus energy lost in urine plus energy lost as gaseous products of digestion.

What is metabolizable protein?

Metabolizable protein (MP) is the true protein which is absorbed by the intestine and supplied by both microbial protein and protein which escapes degradation in the rumen; the protein which is available to the animal for maintenance, growth, fetal growth during gestation, and milk production.

Is the weight gain per unit of protein consumed?

Net protein utilization (NPU) measures percent of dietary protein retained in the body. Since NPU considers digestibility, it is a better estimate for protein quality. Another bioassay used is the protein efficiency ratio (PER), which measures body weight gain per unit of protein consumed.

How to calculate the energy from the wavelength?

Nano- is 10 -9, so all you need to do is move the decimal place over 9 spots or divide by 10 9 . The last value is the wavelength expressed using scientific notation and the correct number of significant figures . Remember how Planck’s equation and the wave equation were combined to give:

What do you mean by metabolizable energy ( NE )?

Metabolizable Energy (ME) is the net energy remaining after fecal and urinary energy loss, and represents the energy available for growth or reproduction and for supporting metabolic processes such as work (locomotion) and respiration (thermoregulation, maintenance metabolism, HIF). As with ME, NE should only be applied to diets, not feeds.

How to calculate the metabolizable energy of macronutrients?

L.J. González-Ortiz, Chemistry Department, University Center of Exact Sciences and Engineering (CUCEI), University of Guadalajara, Blvd Marcelino García Barragán 1451, Col Olímpica, 44430 Guadalajara, Jalisco, Mexico. Email: [email protected]. Phone: +52-33-1378-5900.

How to calculate the metabolizable energy of forage?

Metabolizable energy in the forage is determined with the formula: MEFO = (GEFO)(DECO)(MECO) where GEFO = gross energy in the forage (= 4500 kcal per kg), DECO = digestible energy coefficent, and MECO = metabolizable energy coefficient (0.82).