ArticleAnimals : an open access journal from MDPI2024
Effect of Dietary Crude Protein Reduction Levels on Performance, Nutrient Digestibility, Nitrogen Utilization, Blood Parameters, Meat Quality, and Welfare Index of Broilers in Welfare-Friendly Environments.
Article in Animals : an open access journal from MDPI, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 2 of them syntheses that pooled it.
What it found
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Who cites it
16 citing papers in PubMed, 2 syntheses or guidelines pooled it.
- 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
- Meta-Analysis of the Efficacy of Spirulina Intervention in Mitigating the Negative Impact of Heat Stress on Production Physiology and Health Indices of Broilers.Journal of animal physiology and animal nutrition · 2026Pooled it
- Metabolic markers linked to growth performance in Ross 708 broilers fed varying dietary crude protein levels.Poultry science · 2026Article
- Effects of microbial-phytase co-fermentation of sorghum on growth performance, nutrient utilization, digestive enzyme activities and cecal microbiota in meat ducks.Poultry science · 2026Article
- Effects of reduced crude protein diets on footpad dermatitis, necrotic enteritis, and coccidiosis in broiler chickens.Poultry science · 2026Review
- Dietary metabolizable energy and crude protein affect growth, serum indices, and fecal metabolomics in early-weaned gray-feathered King pigeon squabs.Poultry science · 2026Article
- Effects of dietary starch-to-lipid ratios and amino acid levels on broilers exposed to cyclic heat stress during the finisher period.Poultry science · 2026Article
- Effects of Dietary Protein Levels on Growth, Serum Physiology, Protein and Lipid Metabolism, and Antioxidant Responses in Black Carp (Metabolites · 2026Article
- The Effects of Arginine, Guanidinoacetic Acid and Citrulline Supplementation to Reduced Protein Diets for Aged Laying Hens.Animals : an open access journal from MDPI · 2026Article
- Greenhouse gas sequestration in poultry farming: Strategies for sustainable production and environmental impact mitigation.Poultry science · 2026Review
- Effect of the high dietary inclusion of wheat dried distillers' grains with solubles with and without exogenous enzyme supplementation in broiler diet on performance, litter quality and certain animal welfare issues.Veterinary and animal science · 2026Article
- Partial and Total Substitution of Soybean Meal with Black Soldier Fly Larvae Meal in Japanese Quail Diets: Effects on Performance Criteria and Feed Cost Scenarios.Animals : an open access journal from MDPI · 2026Article
- Laying hen responses to balanced protein reduction on performance, egg quality, nitrogen balance, and fat and mineral utilization.Journal of animal science · 2026Article
- Comparative Evaluation of the Effectiveness of Using Quinoa Grain (Animals : an open access journal from MDPI · 2025Article
- Low protein diet with amino acid supplementation maintains laying performance and egg quality while reducing ammonia emissions in Hy-line brown hens.Tropical animal health and production · 2025Article
- The Use of Coffee Cherry Pulp Extract as an Alternative to an Antibiotic Growth Promoter in Broiler Diets.Animals : an open access journal from MDPI · 2025Article
Corrections and comments
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Authors and funding
6 authors.
Funding
Abstract
We investigated the effects of feeding different levels of crude protein (CP) on broiler performance, blood characteristics, meat quality, nutrient and nitrogen (N) availability, stress levels, and welfare indicators in a welfare environment. A total of 625 eight-day-old male broilers were assigned to five dietary CP levels (control (CON) and 1-4% CP reductions) during the grower (8-21 days) and finisher (22-35 days) periods. The CON diet contained 20% CP in the grower phase and 19% in the finisher phase, while all birds received a 22% CP diet during the starter period (1-7 days). Intriguingly, reducing CP levels in the diet did not significantly affect growth performance. These results may be due to the adequate supplementation of essential amino acids in the diets of all treatments and the compensatory growth observed in the finisher phase. Low-CP diets reduced CP digestibility, N intake, and N excretion, while N retention efficiency improved (
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.