ArticlePoultry science2020
Broilers fed a low protein diet supplemented with synthetic amino acids maintained growth performance and retained intestinal integrity while reducing nitrogen excretion when raised under poor sanitary conditions.
Article in Poultry science, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers, 1 of them a synthesis that pooled it.
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Who cites it
19 citing papers in PubMed, 1 synthesis or guideline pooled it, 43 citations in OpenAlex.
- Interactive effects of dietary total sulfur amino acids and crude protein on growth performance in broiler chickens: Meta-analysis and experimental validation.Poultry science · 2026Pooled it
- Synergies and Trade-Offs in Modern Poultry Nutrition: An Integrated Framework Linking Animal Health, Productivity and Greenhouse Gas Mitigation.Veterinary sciences · 2026Review
- Research Note: Black soldier fly larvae oil restores intestinal barrier integrity and attenuates inflammation in broiler chickens fed low crude protein diets.Poultry science · 2026Article
- N-carbamylglutamate (NCG) supplementation in low-protein diets improving egg quality by regulating protein metabolism pathway of oviduct in laying hens.Frontiers in cell and developmental biology · 2026Article
- Assessment of the dietary amino acid profiles and the relative biomarkers for amino acid balance in the low-protein diets for broiler chickens.Journal of animal science and biotechnology · 2024Article
- Inclusion of slowly digestible starch source is a promising strategy than reducing starch to protein ratio in low protein broiler diets.Poultry science · 2024Article
- Effects of lipopolysaccharide infusion on feed intake, apparent digestibility, rumen fermentation and microorganisms of young Holstein bulls fed diets with different ratios of lysine and methionine.Frontiers in veterinary science · 2024Article
- Growth performance and nitrogen excretion of broiler chickens fed low protein diets supplemented with crystalline amino acids.Journal of animal science and technology · 2024Article
- Article
- Different amino acid supplementation patterns in low-protein diets on growth performance and nitrogen metabolism of goslings from 1 to 28 days of age.Poultry science · 2023Article
- Influence of heat stress on intestinal integrity and the caecal microbiota during Enterococcus cecorum infection in broilers.Veterinary research · 2022Article
- Protease or Clostridium butyricum addition to a low-protein diet improves broiler growth performance.Applied microbiology and biotechnology · 2022Article
- Interactive effect of amino acids balanced at ideal lysine ratio and exogenous protease supplemented to low CP diet on growth performance, carcass traits, gut morphology, and serum metabolites in broiler chicken.Tropical animal health and production · 2022Article
- Broiler responses to dietary 3,4,5-trihydroxybenzoic acid and oregano extracts underJournal of animal science and technology · 2021Article
- Multi-carbohydrase application into energy and amino acid deficient broiler diets: A strategy to enhance performance of broiler chickens.Journal of animal science and technology · 2021Article
- The Impact of Hydrated Aluminosilicates Supplemented in Litter and Feed on Chicken Growth, Muscle Traits and Gene Expression in the Intestinal Mucosa.Animals : an open access journal from MDPI · 2021Article
- Oral Delivery ofFrontiers in veterinary science · 2021Article
- Altering Dietary Soluble Protein Levels With Decreasing Crude Protein May Be a Potential Strategy to Improve Nitrogen Efficiency inFrontiers in nutrition · 2021Article
- Protease supplementation attenuates the intestinal health damage caused by low-protein diets in Pekin ducks.Poultry science · 2020Article
Corrections and comments
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Authors and funding
11 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
The present study investigated the effects of supplementing a low protein (LP) diet supplemented with key essential amino acids (AA) to broilers on growth performance, intestinal tract function, blood metabolites, and nitrogen excretion when the animals were maintained under various sanitary conditions for 35 D after hatching. Three hundred eighty-four one-day-old male broilers (Ross 308) were randomly allotted to groups that received one of 6 dietary treatments in a 2 × 3 factorial arrangement (i.e., 2 environmental conditions and 3 dietary treatments) to give 8 replicates per treatment. Broilers were challenged with 2 environmental conditions (sanitary vs. poor sanitary). The dietary treatments were (1) high protein (HP) diet, (2) LP diet, and (3) LP diet with synthetic key essential AA (LPA): the LP diet was supplemented with synthetic AA up to the required levels for broilers. On day 14, birds consumed the LP diet impaired growth performance compared with those fed the HP diet, while the average daily weight gain-to-feed conversion ratio of birds fed the LPA diet improved to the level of birds fed the HP diet under poor sanitary conditions (P < 0.05). Broilers raised under poor sanitary conditions and fed the LP diet displayed higher (P < 0.05) zonula occludens (ZO-1) expression on day 14 than broilers fed either the HP or LPA diet. Under sanitary conditions, birds fed HP and LPA diets showed higher villus height and crypt depth compared with those of broilers fed the LP diet on day 35. Moreover, broilers raised in the poor sanitary environment had higher (P < 0.05) serum endotoxins than those raised in the sanitary environment. Broilers fed the LPA diet showed reduced (P < 0.05) nitrogen excretion on days 14 and 35 compared with those fed the LP and HP diets independent of the environment. In conclusion, the LPA diet did not impair growth performance under poor sanitary conditions for 14 D after hatch while resulting in lower nitrogen excretion in any environment conditions throughout the experiment.
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