Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Production Efficiency01:01

Production Efficiency

18.7K
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).
18.7K
Overview of Nitrogen Metabolism01:20

Overview of Nitrogen Metabolism

11.7K
Nitrogen is a very important element for life because it is a major constituent of proteins and nucleic acids. It is a macronutrient, and in nature, it is recycled from organic compounds and stored in the form of  ammonia, ammonium ions, nitrate, nitrite, or  nitrogen gas by many metabolic processes. Many of these metabolic processes are carried out only by prokaryotes.
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...
11.7K
Inorganic Nitrogen Assimilation01:22

Inorganic Nitrogen Assimilation

603
Nitrogen is an essential element in biological systems, forming a crucial component of proteins, nucleic acids, and other cellular constituents. Many bacteria and archaea acquire nitrogen in the form of nitrate (NO₃⁻) or ammonia (NH₃), which are then assimilated into biomolecules through specific enzymatic pathways.Assimilatory Nitrate ReductionWhen nitrate enters the cell, it undergoes a two-step reduction process known as assimilatory nitrate reduction. Initially, the enzyme...
603

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Re-evaluating critical thermoregulatory thresholds in fattening pigs: identifying the impact of sex, weight, sire line, space allowance and floor type.

Animal : an international journal of animal bioscience·2026
Same author

Review: Optimising health, welfare and performance in weaned piglets ─ Striking the ideal balance between amino acids, energy, and protein.

Animal : an international journal of animal bioscience·2026
Same author

Opinion paper: Improving experimental design in animal research - seven key principles.

Animal : an international journal of animal bioscience·2025
Same author

Evaluation of digestibility and digestible indispensable amino acid score (DIAAS) of barley and corn protein concentrates using a minipig model.

European journal of nutrition·2025
Same author

Uniformity of body weight in growing pigs is persistent during growth but affected by sow- and litter-related factors.

Animal : an international journal of animal bioscience·2025
Same author

Effect of terminal sire line on heat stress responses in growing-fattening pigs selected for optimal growth rate vs optimal carcass quality.

Animal : an international journal of animal bioscience·2025
Same journal

Adipose tissue transcriptome profiles of local Krškopolje pig and modern hybrids receiving reduced protein diets.

Animal : an international journal of animal bioscience·2026
Same journal

Sheep biometric identification based on multiple body parts.

Animal : an international journal of animal bioscience·2026
Same journal

Temporal dynamics of bromoform metabolite formation and microbial responses during in vitro rumen fermentation with Asparagopsis taxiformis.

Animal : an international journal of animal bioscience·2026
Same journal

Genome-wide association study of methane emissions, feed intake, residual feed intake, and body weight in Merino sheep.

Animal : an international journal of animal bioscience·2026
Same journal

Effect of dietary betaine on apparent digestibility of nutrients, production performance, and serum parameters of dairy goats during the periparturient period.

Animal : an international journal of animal bioscience·2026
Same journal

The supplementation with 1-3 beta-glucan to sows improves piglet's performance and ensures a good immune status of the sow.

Animal : an international journal of animal bioscience·2026
See all related articles

Related Experiment Video

Updated: Feb 20, 2026

Lab-Scale Model to Evaluate Odor and Gas Concentrations Emitted by Deep Bedded Pack Manure
06:52

Lab-Scale Model to Evaluate Odor and Gas Concentrations Emitted by Deep Bedded Pack Manure

Published on: July 19, 2018

6.9K

Review: Pork production with maximal nitrogen efficiency.

S Millet1, M Aluwé1, A Van den Broeke1

  • 1ILVO (Flanders Research Institute for Agriculture, Fisheries and Food),Scheldeweg 68,9090 Melle,Belgium.

Animal : an International Journal of Animal Bioscience
|October 26, 2017
PubMed
Summary
This summary is machine-generated.

Maximizing nitrogen (N) efficiency in pigs involves optimizing both diet and management strategies. Combining ideal protein concepts with genetic selection, castration, and slaughter weight management can significantly reduce N excretion and enhance pork production sustainability.

Keywords:
amino aciddietgrowing-finishing pigmanagement strategiesnitrogen efficiency

More Related Videos

Porcine Normothermic Isolated Liver Perfusion
07:32

Porcine Normothermic Isolated Liver Perfusion

Published on: June 9, 2023

1.5K
Porcine Model of Infrarenal Abdominal Aortic Aneurysm
11:13

Porcine Model of Infrarenal Abdominal Aortic Aneurysm

Published on: November 21, 2019

9.9K

Related Experiment Videos

Last Updated: Feb 20, 2026

Lab-Scale Model to Evaluate Odor and Gas Concentrations Emitted by Deep Bedded Pack Manure
06:52

Lab-Scale Model to Evaluate Odor and Gas Concentrations Emitted by Deep Bedded Pack Manure

Published on: July 19, 2018

6.9K
Porcine Normothermic Isolated Liver Perfusion
07:32

Porcine Normothermic Isolated Liver Perfusion

Published on: June 9, 2023

1.5K
Porcine Model of Infrarenal Abdominal Aortic Aneurysm
11:13

Porcine Model of Infrarenal Abdominal Aortic Aneurysm

Published on: November 21, 2019

9.9K

Area of Science:

  • Animal Science
  • Nutritional Biochemistry
  • Environmental Sustainability

Background:

  • Pigs convert plant protein to animal protein, but significant nitrogen (N) is excreted in manure, posing environmental risks.
  • Improving N efficiency is crucial for sustainable pork production.

Purpose of the Study:

  • To critically evaluate diet and management strategies for enhancing N efficiency in growing pigs.
  • To assess the interplay between nutritional approaches and management practices on N losses.

Main Methods:

  • Review of scientific literature and practical observations on N efficiency in swine.
  • Analysis of factors influencing N excretion, including ingested N, absorption, amino acid (AA) balance, and animal requirements.
  • Evaluation of dietary strategies like multiphase feeding, temporary AA restriction, and the ideal protein concept.

Main Results:

  • Dietary strategies, particularly daily multiphase feeding tailored to individual AA needs and temporary AA restriction, significantly improve N efficiency.
  • Management strategies like genetic selection, castration, and slaughter weight also influence N efficiency.
  • A reductionist approach to diet evaluation can lead to inaccurate conclusions about management strategy effectiveness.

Conclusions:

  • Optimizing nutrition and management concurrently is key to maximizing N efficiency in pigs.
  • Achieving whole-body N efficiency approaching 60% is feasible with integrated strategies.
  • Further research on minimal crude protein (CP) levels and the ratio of standardized ileal digestible (SID) lysine to apparent total tract digestible CP is needed.