ArticleAnimals : an open access journal from MDPI2020
Effects of Cold Stress and Ammonia Concentration on Productive Performance and Egg Quality Traits of Laying Hens.
Article in Animals : an open access journal from MDPI, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.
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Who cites it
16 citing papers in PubMed, 41 citations in OpenAlex.
- Integrated Stress Physiology and Mitigation Strategies for Heat Stress in Layer Chickens-Review.Animals : an open access journal from MDPI · 2026Review
- Article
- Optimizing Productive Performance of Laying Hen and Egg Quality Under Cold Stress: A Dietary Approach With Crude Protein, Methionine and Zinc.Veterinary medicine and science · 2025Article
- Physiological Responses of Laying Hens to Chronic Cold Stress and Ammonia Exposure: Implications for Environmental Management and Poultry Welfare.Animals : an open access journal from MDPI · 2025Article
- Influence ofAnimals : an open access journal from MDPI · 2025Article
- The effect of photoperiod, environmental temperature and wind speed on external quality of free-range turkey eggs.PloS one · 2025Article
- Article
- Abiotic stressors in poultry production: A comprehensive review.Journal of animal physiology and animal nutrition · 2025Review
- Effects of Housing Systems on Production Performance, Egg Quality, Tonic Immobility and Feather Score in Laying Hens.Veterinary medicine and science · 2024Article
- The Effect of Low Temperature on Laying Performance and Physiological Stress Responses in Laying Hens.Animals : an open access journal from MDPI · 2023Article
- Chinese Herbal Extracts Mitigate Ammonia Generation in the Cecum of Laying Hens: An In Vitro Study.Animals : an open access journal from MDPI · 2023Article
- Feeding recycled food waste improved feed efficiency in laying hens from 24 to 43 weeks of age.Scientific reports · 2023Article
- Appropriate cold stimulation changes energy distribution to improve stress resistance in broilers.Journal of animal science · 2023Article
- New Insights into the Hourly Manure Coverage Proportion on the Manure Belt in a Typical Layer House for Accurate Ammonia Emission Modeling.Animals : an open access journal from MDPI · 2021Article
- Effects of Ammonia on Gut Microbiota and Growth Performance of Broiler Chickens.Animals : an open access journal from MDPI · 2021Article
- Research on the Correlation between Breeding Environment and Activity of Yellow Feather Broilers Based on the Multichromatic Aberration Model.Computational intelligence and neuroscience · 2021Article
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Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
In a cold climate, ensuring indoor air quality and heat preservation simultaneously has always been a difficult problem in the poultry house. The current study was carried out in order to determine the effects of chronic low temperature and ammonia concentration on productive performance and egg quality of commercial laying hens. 576 18-week-old Hy-line Brown hens were used in this study. Birds were housed in cages and received for 20-week exposure to low temperature and ammonia in six artificial environmental chambers. Birds were randomly assigned into six treatments: treatment 1 (T1, 20 °C, ≤5 ppm, control group), treatment 2 (T2, 20 °C, 20 ppm), treatment 3 (T3, 20 °C, 45 ppm), treatment 4 (T4, 8 °C, ≤5 ppm), treatment 5 (T5, 8 °C, 20 ppm) and treatment 6 (T6, 8 °C, 45 ppm). Daily feed intake (DFI), feed efficiency (FE), egg production (EP) and body weight (BW) were recorded and calculated from 19 weeks of age. Egg samples were collected at 22, 26, 30, 34 and 38 weeks of age and egg weight (EW), shell breaking strength (SBS), albumen height (AH), yolk weight (YW), shell weight (SW), shell thickness (ST) and Haugh unit (HU) were measured. The results of the present study indicated that low temperature and excessive ammonia decreased the EP of hens compared with those of the T1 birds. Low temperature increased DFI of hens thereby FE showed significant differences among treatments. During the early period of the experiment, low temperature treatment increased the BW of laying hens, but this trend of increase was suppressed by the treatment of ammonia with the prolongation of the experimental period. Egg quality was also affected by low temperature and excessive ammonia. At different experimental periods, egg quality traits of hens exposed to the cold and ammonia stress presented significant differences compared to those of control birds. The present study indicated that the effect of ammonia was more pronounced on hens than that of low temperature at the early and peak laying period in terms of several main traits of productive performance and egg quality under long term hens breeding.
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