ReviewAnimal nutrition (Zhongguo xu mu shou yi xue hui)2024
The potential of glutamine supplementation in reduced-crude protein diets for chicken-meat production.
Review in Animal nutrition (Zhongguo xu mu shou yi xue hui), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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Who cites it
11 citing papers in PubMed.
- Balancing essential amino acids in low-protein diets: Impacts on growth performance, amino acid transport, and cecal microbiota in yellow-feathered chickens.Poultry science · 2026Article
- The impact of grain type and reduced crude protein formulation on postprandial glucose and amino acid responses.Poultry science · 2026Article
- Dietary glutamine modulates egg albumen and yolk composition in laying quails: effects of age.Poultry science · 2026Article
- Spleen Metabolome Reveals Immune-Mediated Responses Modulated by Onion Peel Extract inMicroorganisms · 2026Article
- Evaluating the effects of dietary glutamine on bone geometry, mechanical properties, and mineral composition in laying quail.Poultry science · 2026Article
- Integrating Free Amino Acid Profiles with Flavoromics to Characterize the Flavor Characteristics of DifferentFoods (Basel, Switzerland) · 2026Article
- Appropriate Rumen-Protected Glutamine Supplementation During Late Gestation in Ewes Promotes Lamb Growth and Improves Maternal and Neonatal Metabolic, Immune and Microbiota Functions.Animals : an open access journal from MDPI · 2025Article
- Supplementation of specific insoluble fibres partially attenuates compromised growth performance of broilers fed wheat-based reduced crude protein diets.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2025Article
- Recent advances in protein and amino acid nutritional dynamics in relation to performance, health, welfare, and cost of production.Poultry science · 2025Review
- Sorghum surpasses wheat as a feed grain for broiler chickens following dietary crude protein reductions.Journal of animal science and biotechnology · 2025Article
- Alanyl-Glutamine Attenuates Soybean Meal-Induced Intestinal Dysfunction and Growth Retardation in Largemouth Bass (Aquaculture nutrition · 2025Article
Corrections and comments
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Authors and funding
4 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This review explores the potential of including glutamine, a so-called non-essential amino acid, in the formulation of reduced-crude protein (CP) diets for broiler chickens. There is a precedent for benefits when including glycine and serine in reduced-CP diets. Fundamentally this is due to decreases in non-essential amino acid concentrations in reduced-CP diets - an unavoidable consequence of reducing CP without amino acid supplementation. The situation for glutamine is complicated because analysed dietary concentrations are very rarely provided as standard assays do not differentiate between glutamine and glutamate and are reported on a combined basis as glutamic acid. The dietary requirement for glutamic acid is approximately 36.3 g/kg but it is increasingly unlikely that this requirement will be met as dietary CP levels are progressively reduced. Glutamine is an abundant and versatile amino acid and constitutes 50.5 mg/g of whole-body chicken protein and is the dominant free amino acid in systemic plasma where it has been shown to provide 22.6% (139.9 of 620.3 μg/mL) of the total in birds offered 215 g/kg CP, wheat-based diets. In addition to dietary intakes, glutamine biosynthesis is derived mainly from the condensation of glutamate and ammonia (NH
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