ArticlePoultry science2023
Growth performance, liver and kidney functions, blood hormonal profile, and economic efficiency of broilers fed different levels of threonine supplementation during feed restriction.
Article in Poultry science, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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14 citing papers in PubMed, 21 citations in OpenAlex.
- Effects of L-threonine supplementation on growth performance, intestinal histology, gut microbiota and gene expression related to gut barrier function in broiler chickens.Poultry science · 2026Article
- Hepatoprotective efficacy of silymarin-loaded metal-organic frameworks against CClPoultry science · 2026Article
- Impact of microencapsulated DL-methionine on intestinal health, immune gene expression, and economic returns in broilers chickens.Poultry science · 2026Article
- Effects of Amino Acid Supplementation in Low-Protein Diets on Productive Performance, Digestive Function, and Intestinal Health of Laying Hens.Animals : an open access journal from MDPI · 2026Article
- LateiScience · 2026Article
- Rosemary powder as a natural supplement to mitigate mortality in broilers under heat stress.Open veterinary journal · 2025Article
- Toxicological Evaluation and Antimicrobial Activity of a Natural Thymol-Eucalyptol-Based Mixture.Toxics · 2025Article
- Plasma Hormone and Metabolomics Identifies Metabolic Pathways Associated with Growth Rate of Dezhou Donkeys.Animals : an open access journal from MDPI · 2025Article
- Effects of high dietary threonine supplementation on growth performance, health biomarkers, and intestinal histology in cyclic heat-stressed broilers.Veterinary world · 2025Article
- Mitigating heat stress in commercial broilers through feeding management approaches: Insights into growth, serum biochemical indices, meat quality, and gut histomorphology.Open veterinary journal · 2025Article
- Growth performance, carcass quality, immune response, and production economics of broiler chickens fed avocado seed meal under feed restriction.Translational animal science · 2025Article
- Insights of early feeding regime supplemented with glutamine and various levels of omega-3 in broiler chickens: growth performance, muscle building, antioxidant capacity, intestinal barriers health and defense against mixedThe veterinary quarterly · 2024Article
- Effects of Micellar Quercetin Supplementation on Growth Performance, Nutrient Digestibility, Fecal Microbiota, Meat Quality, and Physiological Status in Broiler Chickens.Animals : an open access journal from MDPI · 2024Article
- Complexed amino acid minerals vs. bis-glycinate chelated minerals: Impact on the performance of old laying hens.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2024Article
Corrections and comments
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Authors and funding
8 authors at 7 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The objective of the existing investigation was to determine the effect of dietary inclusion of threonine amino acid at different levels during feed restriction on growth indices, liver and kidney function parameters, and some hormonal profiles along with economic indicators in broiler chickens. A total of 1,600 from 2 different breeds (800 Ross 308 and 800 Indian River) at 21-day-old age were incorporated. Chicks were randomly assigned into 2 main groups, control and feed-restricted (8 h/d), during the fourth week of age. Each main group was subdivided into 4 groups. The first group was fed a basal diet without adding extra threonine (100%), the second, third, and fourth groups were fed a basal diet with extra threonine levels of 110, 120, and 130%, respectively. Each subgroup consisted of 10 replicates of 10 birds. We noticed that the dietary inclusion of threonine at extra levels in the basal diets significantly enhanced final body weight, body weight gain, and better feed conversion ratio. This was mainly due to the enhanced levels of growth hormone (GH), insulin-like growth factor (IGF1), triiodothyronine (T3), and thyroxine (T4). Moreover, the lowest feed cost per kilogram body weight gain and improved return parameters were reported in control and feed-restricted birds fed higher levels of threonine than other groups. Also, a significant increase in alanine aminotransferase (ALT), aspartate aminotransferase (AST), and urea levels was observed in feed-restricted birds supplemented with 120 and 130% levels of threonine. Hence, we recommend supplementing threonine at levels of 120 and 130% in the diet of broilers to promote growth and profitability.
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