Article
Agriculture, Dairy & Animal Science
Madri Brink, Geert P. J. Janssens, Evelyne Delezie
Summary: The addition of water to broiler litter can increase ammonia emissions and decrease litter quality, leading to a higher incidence of foot lesions in broilers.
Article
Chemistry, Multidisciplinary
Dengfei Jie, Zhanxiang Zhang, Jincheng He, Yafang Zhou, Guangyou Zhu
Summary: Pollution generated by livestock and poultry rearing is a significant environmental issue, and gas emissions during animal production are increasing. This study utilized waste tea litter as bedding material for broiler rearing and found that it reduced ammonia and carbon dioxide emissions without impacting broiler growth significantly.
APPLIED SCIENCES-BASEL
(2022)
Article
Water Resources
Xiaodong Liu, Yingjie Feng, Peiling Liu, Qianmei Zhang, Brian Njoroge, Qing Zhou, Xianhua Gan, Weiqiang Zhang, Yuelin Li
Summary: This study focuses on the dynamics of litter moisture content in lower subtropical China and reveals that the litter moisture content increased after vegetation restoration and was higher during the wet season compared to the dry season. Soil water content is the main factor controlling the dynamics of litter moisture content, and the litter layer is more sensitive to changes in external environmental factors.
JOURNAL OF HYDROLOGY-REGIONAL STUDIES
(2022)
Article
Multidisciplinary Sciences
Yunlin Zhang, Lingling Tian
Summary: This study establishes prediction models for litter moisture content through monitoring dynamic changes and analyzing the relationships between litter moisture content and meteorological elements. The direct estimation method shows the lowest error and strongest extrapolation ability, making it the optimal choice for daily fire forecasting.
Article
Plant Sciences
Zsolt Kotroczo, Marianna Makadi, Tamas Kocsis, Aron Beni, Gabor Varbiro, Istvan Fekete
Summary: Carbon in soil is an important indicator of soil fertility and can be affected by climate change and land use. Our study examines the changes in soil CO2 emissions over ten years due to litter manipulation treatments. We found that wetter soils had higher root respiration and leaf litter significantly increased soil respiration, but these effects were only observed in certain conditions. Additionally, removing surface litter in drier summer periods resulted in increased CO2 emissions and soil organic carbon loss.
Article
Ecology
Nevo Sagi, Dror Hawlena
Summary: Climate greatly influences litter decomposition by microorganisms and animals, with higher decomposition rates in warm and wet environments. A global analysis of macrofauna exclusion studies reveals that larger animals, such as in subtropical deserts, significantly enhance litter mass loss by 40% on average, highlighting the importance of considering animal size in understanding the climate dependence of faunal decomposition and its crucial role in element cycling under global warming and aridification.
Article
Forestry
Yukiko Abe, Hiroyuki Kurokochi, Kazutoshi Yoshitake, Ryo Yonezawa, Shuichi Asakawa, Takeshi Tange
Summary: This study investigated the composition of soil bacterial communities in a Cryptomeria japonica plantation at different times after clear-cutting, revealing variations in the frequencies of Proteobacteria and Acidobacteria, which are affected by soil temperature and the presence of organic layers post-clear-cutting.
Article
Environmental Sciences
Yuanfan Ma, Song Yang, Zhongpan Zhu, Guangyu Wang, Mulualem Tigabu, Yuxuan Guo, Wenxia Zheng, Futao Guo
Summary: This study investigated the impact of fuel moisture content on the emissions of pollutants during forest fires. The results showed that low moisture content led to higher peak concentrations of CO, CO2, NOx, and SO2. However, as the fuel moisture content increased, the emission factors of CO2, NOx, and SO2 decreased while the emission factor of CO increased. The emissions from coniferous fuels were significantly higher compared to broad-leaved fuels. Additionally, the study found that the total emissions of non-methane hydrocarbons were positively affected by the fuel moisture content.
ATMOSPHERIC ENVIRONMENT
(2022)
Article
Construction & Building Technology
Shenghan Zhuang, Jian Wang, Min Li, Changqing Yang, Jingchun Chen, Xiangquan Zhang, Zedong Zhao, Di Li, Jiaolong Ren
Summary: High-modulus asphalt mixtures (HMAM) have been widely used in high-temperature areas of China due to their advantages in rutting and fatigue resistance. However, the degradation of HMAM pavement performance is influenced by the combined action of moisture contents and temperatures. This study analyzed the moisture absorption characteristics of HMAM at different temperatures and investigated its rutting and fatigue performance under various moisture contents, temperatures, and stress levels.
Article
Agriculture, Dairy & Animal Science
Bruno S. Mendonca, Willian R. de Oliveira, Rhaquel S. Pereira, Luciana R. Santos, Laura B. Rodrigues, Elci L. Dickel, Luciane Daroit, Fernando Pilotto
Summary: A new poultry litter disinfection method using gaseous ammonia was proposed in this study, which successfully eliminated pathogenic Salmonella spp. Through experiments and field observations, it was found that this method effectively reduced the survival and transmission of Salmonella in poultry litter.
Article
Veterinary Sciences
Robert Valeris-Chacin, Maria Pieters, Haejin Hwang, Timothy J. Johnson, Randall S. Singer
Summary: Campylobacter species, a common pathogen causing bacterial diarrhea, can persist in broiler houses through various sources, and its isolation is associated with the composition of the broiler litter microbiome. Certain bacterial genera, like Clostridium and Anaerostipes, were positively correlated with Campylobacter isolation, while others, like Bifidobacterium, Anaerosporobacter, and Stenotrophomonas, were negatively associated, suggesting potential for pre-harvest control strategies.
FRONTIERS IN VETERINARY SCIENCE
(2021)
Article
Agriculture, Dairy & Animal Science
Amrit Pal, Matthew A. Bailey, Aidan A. Talorico, James T. Krehling, Kenneth S. Macklin, Stuart B. Price, Richard Jeff Buhr, Dianna Bourassa
Summary: This study found through in vitro experiments that Salmonella can potentially be transmitted through dust from poultry litter, with litter moisture levels impacting this process. Results suggest that higher levels of Salmonella in litter increase the likelihood of detecting Salmonella in dust, while higher litter moisture levels decrease the prevalence of Salmonella in generated dust.
Review
Environmental Sciences
Karoline Carvalho Dornelas, Nagela Maria Henrique Mascarenhas, Priscila Almeida dos Santos da Rocha, Ana Paula Silva Ton, Adriana Garcia do Amaral, Roselene Maria Schneider, Alicia Nayana dos Santos Lima de Brito, Dermeval Araujo Furtado, Jose Wallace Barbosa do Nascimento
Summary: Aviculture is an important industry worldwide, but it produces solid waste like bedding. To reduce environmental impact and costs, beds are reused, leading to unsanitary conditions. It is essential to treat the litter between flocks to ensure its quality and avoid passing problems to subsequent flocks. This literature review aims to explore the factors affecting thermal comfort and litter quality, as well as alternative biological treatments to guarantee reuse quality.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Agriculture, Dairy & Animal Science
Angel Antonio Gonzalez Martinez, Irenilza de Alencar Naas, Thayla Morandi Ridolfi de Carvalho-Curi, Jair Minoro Abe, Nilsa Duarte da Silva Lima
Summary: The study proposed decision-tree models based on temperature, humidity, ammonia concentration and other data to improve broiler house environmental control. The proper combination of environmental and flock-based variables plays a critical role in broiler production.
Article
Geosciences, Multidisciplinary
Haohao Wu, Xingkai Xu, Pingqing Fu, Weiguo Cheng, Congsheng Fu
Summary: Future climatic changes may lead to increased soil freeze-thaw events in high latitude and/or high altitude areas, impacting the dynamics of dissolved organic matter in soils, particularly in northern temperate forest regions. This study investigated the responses of soil dissolved organic matter quantity and quality under different soil moisture and litter manipulation conditions, showing that litter amendment and freeze-thaw disturbance influenced water-extractable organic carbon concentrations in the early incubation period, but these effects diminished over time due to changes in microbial properties.
Article
Agriculture, Dairy & Animal Science
Jesper Tessin, Judith Rohde, Arne Jung, Nicole Kemper, Jochen Schulz
Summary: In this study, samples from poultry house environment and culled birds were collected, and E. cecorum was successfully isolated. The principle of isolating the pathogen by streaking on a chromogenic agar may motivate researchers to investigate transmission routes and optimize biosecurity measures.
Article
Agriculture, Dairy & Animal Science
Junqin Zhang, Zimin Xie, Yanlin Pan, Zuoxin Chen, Yunzhen Huang, Linlin Li, Jiawen Dong, Yong Xiang, Qi Zhai, Minhua Sun, Xingying Li, Shujian Huang, Ming Liao
Summary: In recent years, there has been an increase in the occurrence of fowl adenovirus 2 (FAdV-2) in China, posing a significant threat to the poultry industry. This study investigated the epidemiology, phylogenetic relationship, genomic characteristics, and pathogenicity of FAdV-2. The results showed that FAdV-2 was the most commonly detected serotype among various FAdV serotypes. Genetic analysis revealed that these FAdV-2 strains formed a distinct branch within the FAdV-D group and had a high nucleotide similarity with reference strains. Recombination analysis identified recombination events between FAdV-2 and FAdV-11 in some strains. Pathogenicity experiments demonstrated that a recombinant FAdV-2 strain caused a high mortality rate and more severe disease in chickens. These findings contribute to our understanding of FAdV-2 and provide a basis for vaccine development.
Article
Agriculture, Dairy & Animal Science
Ebtsam Iraqi, Ali Abdel Hady, Nadia Elsayed, Hanaa Khalil, Amina El-Saadany, Karim El-Sabrout
Summary: Thermal manipulation during egg incubation, particularly at 12 to 18 days, has positive effects on embryonic development, hatching characteristics, chick quality, as well as posthatch thermotolerance and performance.
Article
Agriculture, Dairy & Animal Science
Yong Liu, Mingxin Song, He Bai, Chunhua Wang, Fei Wang, Qi Yuan
Summary: Dietary curcumin supplementation can significantly improve egg quality of quails in the late laying period, primarily by improving lipid metabolism and selectively regulating the intestinal microbial community.
Article
Agriculture, Dairy & Animal Science
Lei Zhang, Zhixuan Song, Peiyao Li, Xingju Song, Xinming Tang, Dandan Hu
Summary: This study evaluated the vaccine potential of recombinant proteins for avian coccidiosis caused by Eimeria. The results showed that the rEten5-B protein can trigger immune protection against E. tenella and may be a potential and effective subunit vaccine for the control of coccidiosis in poultry.
Article
Agriculture, Dairy & Animal Science
Milan Kumar Sharma, Amit Kumar Singh, Doyun Goo, Venkata Sesha Reddy Choppa, Hanseo Ko, Hanyi Shi, Woo Kyun Kim
Summary: The study investigates the effect of Eimeria infection on gastrointestinal physiology, growth performance, and egg production of Hy-Line W-36 laying hens during peak production. Results show that Eimeria infection negatively affects body weight, feed intake, immune response, and nutrient transporter gene expression. Egg production temporarily ceases in hens infected with high and medium-high dosages of Eimeria.
Article
Agriculture, Dairy & Animal Science
Elwy A. Ashour, Mahmoud Kamal, Hayman A. A. Altaie, Ayman A. Swelum, Gamaleldin M. Suliman, Guillermo Tellez-Isaias, Mohamed E. Abd El-Hack
Summary: This study evaluated the effects of CP and ME on the performance and nutritional value of Japanese quail lay chicken. The results showed that protein and energy levels significantly influenced all productive outcomes except feed conversion ratio. The combination of dietary energy and protein levels had a substantial effect on all egg quality trials evaluated. It is recommended to feed layer Japanese quail between the ages of 8 and 20 weeks during the summer with a dietary energy content of 2,900 kcal ME/kg and 20% CP.
Article
Agriculture, Dairy & Animal Science
J. E. Doornweerd, R. F. Veerkamp, B. de Klerk, M. van der Sluis, A. C. Bouwman, E. D. Ellen, G. Kootstra
Summary: Tracking group-housed individual broilers using video can provide valuable information on their health, welfare, and performance. This study conducted a comprehensive analysis on broiler tracking on video and potential tracking errors, highlighting the potential and challenges of phenotyping broiler locomotion. The results emphasized the importance of addressing tracking errors, potential algorithm improvements, and the need for an external animal identification system for efficient locomotion phenotyping.
Article
Agriculture, Dairy & Animal Science
Jiayu Wu, Yanan Wang, Yu An, Changyu Tian, Lingfeng Wang, Zuhong Liu, Desheng Qi
Summary: This study compared the gene expression differences in liver tissues of laying hens at different ages using RNA sequencing, and found that the transport and metabolism of amino acids changed during the growing period, which influenced the growth and development of the hens.
Article
Agriculture, Dairy & Animal Science
J. Raabe, G. Raveendran, W. Otten, K. Homeyer, T. Bartels
Summary: This study investigated the effects of different flicker frequencies on the behavior, performance, and stress response in male turkeys. The results showed that flicker frequencies of 165 Hz or higher had no detrimental effect on growth performance, injurious pecking, or endocrine stress response in the turkeys.
Article
Agriculture, Dairy & Animal Science
Adamu Mani Isa, Yanyan Sun, Yuanmei Wang, Yunlei Li, Jingwei Yuan, Aixin Ni, Hui Ma, Lei Shi, Hailai Hagos Tesfay, Yunhe Zong, Panlin Wang, Pingzhuang Ge, Jilan Chen
Summary: This study sequenced mRNAs and lncRNAs in the ovary stroma of specific chicken breeds and their reciprocal crossbreds to understand the molecular mechanism of heterosis for egg production. Results showed that genes with nonadditive expression were related to follicle growth and atresia as well as oxidative stress in the crossbred hens.
Article
Agriculture, Dairy & Animal Science
Zhepeng Wang, Qiu Chen, Yiwei Wang, Yulu Wang, Ruifang Liu
Summary: The study investigates the functional variants associated with chicken eggshell color in the SLCO1B3 gene by measuring the eggshell color of Lueyang black-boned chickens and analyzing the genetic data. It identifies 15 variants in SLCO1B3 that are significantly associated with eggshell color. However, the functional analysis shows that one specific variant, 1B3_SNP108, does not have a significant effect on promoter activity. This study highlights the importance of SLCO1B3 and its variants in breeding eggshell color.
Article
Agriculture, Dairy & Animal Science
P. Yin, Q. Tong, B. M. Li, W. C. Zheng, Y. Wang, H. Q. Peng, X. L. Xue, S. Q. Wei
Summary: This study investigated the welfare and health of laying hens in a multitier system. The results showed that the spatial distribution of hens changed with increasing age, and lower-ranking hens preferred to stay in lower tiers to avoid competition but still had access to resources. This improved the welfare and health of the hens near the end of the laying cycle.
Article
Agriculture, Dairy & Animal Science
Wenwen Liang, Siqiong Jie, Yiqin Wang, Xiaowei Wen, Yanling Xiong, Xiaoxi Lin, Zhengrong Lv
Summary: This study examined the effect of risk perceptions on preventive behavior among vendors in the live poultry wholesale market and the live poultry retail market in Guangdong Province using the health belief model and structural equation modeling. The results showed that perceived severity and perceived benefits positively influenced vendors' self-efficacy in the wholesale market, while perceived barriers negatively affected self-efficacy in both the wholesale and retail markets. Moreover, cues to action mediated the relationship between perceived severity, perceived benefits, and self-efficacy, and also mediated the effect of perceived susceptibility among wholesale market vendors.
Article
Agriculture, Dairy & Animal Science
Shreeya Sharma, Raveendra R. Kulkarni, Shayan Sharif, Hosni Hassan, Mohammadali Alizadeh, Scott Pratt, Khaled Abdelaziz
Summary: The study investigates the impact of exposing chick embryos to antigens via in ovo delivery of poultry-specific lactobacilli on the expression of genes associated with early bursal development and maturation. Results indicate that the supplementation of poultry-specific lactobacilli to chick embryos can accelerate the development and immunological maturation of the bursa of Fabricius.
