Microclimate, Body Weight Uniformity, Body Temperature, and Footpad Dermatitis in Broiler Chickens Reared in Commercial Poultry Houses in Hot and Humid Tropical Climates

Sohsuebngarm, Damnern; Kongpechr, Saijai; Sukon, Peerapol

doi:10.36380/scil.2019.wvj30

Cited by 5 publications

(6 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…External events such as changes in diet, temperature and stress 4,5 may result in the colonization of new resident species or AMR transfer between species 6 . Temperature, humidity and both bacterial species abundance and the presence of antibiotic resistance genes (ARGs) [7][8][9] can influence bacterial infection in broilers 10 . Links between environmental conditions and AMR are particularly relevant for China and low-and middle-income countries (LMICs), where maintaining stable environmental conditions in industrialscale farming may be challenging compared with in high-income countries 11 .…”

mentioning

confidence: 99%

Machine learning and metagenomics reveal shared antimicrobial resistance profiles across multiple chicken farms and abattoirs in China

et al. 2023

View full text Add to dashboard Cite

China is the largest global consumer of antimicrobials and improving surveillance methods could help to reduce antimicrobial resistance (AMR) spread. Here we report the surveillance of ten large-scale chicken farms and four connected abattoirs in three Chinese provinces over 2.5 years. Using a data mining approach based on machine learning, we analysed 461 microbiomes from birds, carcasses and environments, identifying 145 potentially mobile antibiotic resistance genes (ARGs) shared between chickens and environments across all farms. A core set of 233 ARGs and 186 microbial species extracted from the chicken gut microbiome correlated with the AMR profiles of Escherichia coli colonizing the same gut, including Arcobacter, Acinetobacter and Sphingobacterium, clinically relevant for humans, and 38 clinically relevant ARGs. Temperature and humidity in the barns were also correlated with ARG presence. We reveal an intricate network of correlations between environments, microbial communities and AMR, suggesting multiple routes to improving AMR surveillance in livestock production.

show abstract

mentioning

confidence: 99%

Machine learning and metagenomics reveal shared antimicrobial resistance profiles across multiple chicken farms and abattoirs in China

et al. 2023

View full text Add to dashboard Cite

show abstract

“…In the present study, a new generation light source applied to the feeder was considered an interesting system to improve the feed administration and the growing performance of chickens in a productive cycle. According to research performed on the environmental parameters [24], no significant relation was shown between microclimate parameters and body weight uniformity, although indirect consequences can be found.…”

Section: Discussionmentioning

confidence: 95%

LED Light Applied to the Feeder: Impact on Growth Performances of Chickens under Productive Conditions

Galosi

Falconi

Biagini

et al. 2023

Veterinary Sciences

View full text Add to dashboard Cite

This study assessed the use of feeders equipped with light-emitting diodes and their effects on the productivity of broiler chickens under productive conditions. A total of 87,200 ROSS 308 chickens, 1-day old, were housed in two poultry houses (CONTROL, F-LED). In CONTROL, 20,000 females (mean body weight 41.12 ± 3 g) and 25,000 males (mean body weight 41.56 ± 3 g) were housed, while 19,200 females and 23,000 males of the same genetic make-up and mean body weight were housed in F-LED under the same environmental conditions. In F-LED, to encourage chickens to feed and to redistribute more feed down the feeding line, a feeder equipped with a LED light has been installed at the end of each line. In CONTROL, no light was located on the feeders. At the end of the cycle, the average body weight never showed significant differences both for females (1345 g in CONTROL; 1359 g in F-LED) and for males (2771 g in CONTROL; 2793 g in F-LED). Uniformity improved in F-LED, at 75.2% in females and 54.1% in males, compared to CONTROL, at 65.7% and 48.5%, respectively, for females and males. The feed conversion ratio followed the same trend, being more favorable in chickens reared in F-LED (1.567) compared to those raised in CONTROL (1.608). The application of a single F-LED at the end of each feeding line demonstrated its utility in improving size uniformity and feed conversion.

show abstract

“…Microclimate parameters were measured once daily (during 1–2 pm) (5 measurements: 4 corners and the center of each room by one sensor for each microclimate parameter/room) when the chicks were aged from 14 to 42 days. All measurements were taken at the bird’s height (approximately 30 cm from the floor) according to Sohsuebngarm et al [ 18 ]. Using Arduino microcontrol board ((Elecrow Company, Shenzhen, China), which has an embedded DHT11 sensor to measure ambient temperature (°C), relative humidity (%), and an MQ135 gas detector sensor for monitoring harmful gases and to detect the level of NOx, alcohol, Benzene, smoke, and CO 2 in the poultry house (according to Orakwue et al [ 19 ]).…”

Section: Methodsmentioning

confidence: 99%

Influence of Improved Microclimate Conditions on Growth and Physiological Performance of Two Japanese Quail Lines

Emam

Elnesr

El-Full

et al. 2023

Animals

View full text Add to dashboard Cite

Microclimate parameters (ammonia, ambient temperature, heat index, and relative humidity) surrounding birds affect the production and health status of poultry. Therefore, this study aimed to evaluate the impact of adding natural zeolite to the litter of Japanese quail on improving microclimate parameters and its reflection in growth performance, blood gases, and blood biochemical parameters. A total of 1152 chicks were obtained from the same hatch at the 20th selection generation. Chicks were allocated into two groups based on the litter composition: Group 1: wheat straw as litter (untreated group); Group 2: 80% wheat straw + 20% zeolite (treated group). Each group consisted of 576 chicks: 410 selected line chicks and 166 control line chicks. Significant and favorable effects of the treatment on microclimate parameters during tested periods were found to favor the treated group. Either the treated group or the selected line had significantly better growth performance than the untreated group and control line. Zeolite-treated quails had significantly desirable blood gases and lower blood acidity and serum total iron binding capacity compared to the untreated group. Thus, adding natural zeolite to the litter enhanced the microclimate parameters that improved growth performance, blood gases, and blood biochemical parameters and reduced ammonia emission.

show abstract

Microclimate, Body Weight Uniformity, Body Temperature, and Footpad Dermatitis in Broiler Chickens Reared in Commercial Poultry Houses in Hot and Humid Tropical Climates

Cited by 5 publications

References 2 publications

Machine learning and metagenomics reveal shared antimicrobial resistance profiles across multiple chicken farms and abattoirs in China

Machine learning and metagenomics reveal shared antimicrobial resistance profiles across multiple chicken farms and abattoirs in China

LED Light Applied to the Feeder: Impact on Growth Performances of Chickens under Productive Conditions

Influence of Improved Microclimate Conditions on Growth and Physiological Performance of Two Japanese Quail Lines

Contact Info

Product

Resources

About