ArticleAnimals : an open access journal from MDPI2021
Effects of Dietary Valine Levels on Production Performance, Egg Quality, Antioxidant Capacity, Immunity, and Intestinal Amino Acid Absorption of Laying Hens during the Peak Lay Period.
Article in Animals : an open access journal from MDPI, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.
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Who cites it
15 citing papers in PubMed, 31 citations in OpenAlex.
- Dietary L-Tyrosine Sustains Egg Production and Quality by Modulating Promoter CpG Methylation, Gene Expression, and Hormone Profiles in Reproductive Signalling Pathways of Aged Laying Hens.Journal of animal physiology and animal nutrition · 2026Article
- Graded Levels of Dietary Valine in Protein-Restricted Diets: Effects on Reproductive Performance and Tissue Morphology in Laying Japanese Quail.Veterinary medicine and science · 2026Article
- Spleen Metabolome Reveals Immune-Mediated Responses Modulated by Onion Peel Extract inMicroorganisms · 2026Article
- Dietary biological silage from tambaqui by products affect performance, physiology, and egg quality of young and old laying hens.Tropical animal health and production · 2026Article
- Dried black soldier fly (Hermetia illucens) larvae in sustainable diet for laying hens: effects on performance, physiology, and nutrient metabolism.Tropical animal health and production · 2026Article
- Amino Acid Nutrition in Poultry: A Review.Animals : an open access journal from MDPI · 2025Review
- Branched-chain amino acids induce hyperammonemia via gut-liver axis-mediated ammonia overproduction in laying hens.Animal nutrition (Zhongguo xu mu shou yi xue hui) · 2025Article
- Effect of Agaricus bisporus Stalk Replacement of Soybean on Productive Performance, Egg Quality and Intestinal Microbiota of Laying Hens.Veterinary medicine and science · 2025Article
- Branched-chain amino acids alleviate NAFLD via inhibiting de novo lipogenesis and activating fatty acid β-oxidation in laying hens.Redox biology · 2024Article
- High Dietary Folic Acid Supplementation Reduced the Composition of Fatty Acids and Amino Acids in Fortified Eggs.Foods (Basel, Switzerland) · 2024Article
- The histopathological changes of liver and testis of Japanese quail chicks fed different levels of dietary L-valine.Veterinary and animal science · 2023Article
- Bacillus amyloliquefaciens BLCC1-0238 Alone or in Combination with Mannan-Oligosaccharides Alleviates Subclinical Necrotic Enteritis in Broilers.Probiotics and antimicrobial proteins · 2022Article
- Article
- Amino Acid and Fatty Acid Metabolism Disorders Trigger Oxidative Stress and Inflammatory Response in Excessive Dietary Valine-Induced NAFLD of Laying Hens.Frontiers in nutrition · 2022Article
- Dietary Valine Ameliorated Gut Health and Accelerated the Development of Nonalcoholic Fatty Liver Disease of Laying Hens.Oxidative medicine and cellular longevity · 2021Article
Corrections and comments
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
The present study aimed to assess the impact of dietary valine levels on layer production performance, egg quality, immunity, and intestinal amino acid absorption of laying hens during the peak lay period. For this purpose, a total of 960 33-week-old Fengda No.1 laying hens were randomly divided into five experimental groups and fed with valine at the following different levels in a feeding trial that lasted 8 weeks: 0.59, 0.64, 0.69, 0.74, and 0.79%, respectively. Productive performances were recorded throughout the whole rearing cycle and the egg quality, serum indexes, and small intestine transporters expression were assessed at the end of the experiment after slaughter (41 weeks) on 12 hens per group. Statistical analysis was conducted by one-way ANOVA followed by LSD multiple comparison tests with SPSS 20.0 (SPSS, Chicago, IL, USA). The linear and quadratic effects were tested by SPSS 20.0. Egg mass, laying rate, broken egg rate, and feed conversion ratio were significantly improved with increasing dietary valine levels. However, the egg weight, eggshell thickness, albumen height, Haugh unit, and egg yolk color were significantly decreased with increasing dietary valine levels. Serum catalase (CAT), immunoglobulin A (IgA) and IgM levels, and malondialdehyde (MDA) levels were negative responses to valine-treated laying hens. Dietary supplemented valine enhanced the trypsin activity of duodenum chime and promoted the mRNA expression levels of ATB
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