Results 91 to 100 of about 6,197,707 (338)

Predicting the environmental impacts of chicken systems in the United Kingdom through a life cycle assessment: egg production systems.

Poultry Science, 2012
The aim of this study was to apply a life cycle assessment (LCA) method, from cradle to gate, to quantify the environmental burdens per 1,000 kg of eggs produced in the 4 major hen-egg production systems in the United Kingdom: 1) cage, 2) barn, 3) free ...
I. Leinonen, A. Williams, J. Wiseman, J. Guy, I. Kyriazakis   +4 more
semanticscholar   +1 more source

Liquid Crystalline Elastomers in Soft Robotics: Assessing Promise and Limitations

Advanced Robotics Research, EarlyView.
Liquid crystalline elastomers (LCEs) are programmable soft materials that undergo large, anisotropic deformation in response to external stimuli. Their molecular alignment encodes directional actuation in a monolithic structure, making them long‐standing candidates for soft robotic systems.
Justin M. Speregen, Timothy J. White
wiley   +1 more source

Production of Eggs and Sperm

, 2018
The production of gametes is a biological process occurring in organisms that sexually reproduce. Females make gametes called eggs, and males make gametes called sperm. Both egg and sperm cells begin as identical germ cells and are produced through a process of cell division called meiosis, which reduces the number of chromosomes in the germ cell from ...
TAY, Jia-min Amanda, YONG, Jin Chuan, LI, Norman P.   +2 more
openaire   +3 more sources

Observations Concerning the Time Factor in Egg Production

, 1929
When a bird lays for several days in succession the first egg is usually the heaviest and generally there is a gradual decrease in the weight of the eggs toward the end of the series, the last egg being the lightest.
H. Atwood
semanticscholar   +1 more source

Microfilament‐Myosin II Regulates the Differentiation of Multinucleated Cysts into Oocytes and Influences Oocyte Developmental Potential in Mice

Advanced Science, EarlyView.
In this study, we provided new evidence identifying multinucleated cysts as precursors for oocyte differentiation. Within these cysts, organelles migrate and aggregate to form Balbiani body (B‐body) and establish early cellular polarity. Concurrently, excess nuclei are expelled, enabling cyst‐to‐oocyte differentiation. The microfilament‐myosin II plays
Rui Xu, Menghao Pan, Zhi Zheng, Yaju Tang, Yutong Yan, Sihai Lu, Sha Peng, Baohua Ma   +7 more
wiley   +1 more source

Evaluation of Production Performance Parameters of Two Laying Hen Strains Housed in Four Housing Environments [PDF]

Brazilian Journal of Poultry Science
This study investigated the impact of housing environment on performance parameters of the Lohmann LSL Classic (LW) and Lohmann Sandy (LS) strains. The deep litter (DL), free access to outdoor Mentha piperita (MP), Petroselinum crispum (PC), and Medicago
B Tainika, A Şekeroğlu, SH Abacı, A Akyol, M Duman, YE Şentürk, M Avcı   +6 more
doaj   +1 more source

Integrative Omics Reveals Glutamine Catabolism‐Driven Apoptotic Suppression in Monocytes upon Mechanical Unloading

Advanced Science, EarlyView.
This research integrated multi‐omics analysis of bone tissue from HLU and control mice revealed that mechanical unloading suppresses intrinsic apoptosis and augments glutamine (Gln) catabolism in osteoclast lineage cells. The findings highlight pivotal roles for SLC1A5‐mediated Gln metabolism and XIAP/Diablo axis‐mediated apoptosis suppression.
Yi Ding, Fan Tong, Mingqiu Liu, Pin Yang, Jing Zeng, Yinghua Wei, Chunlin Li, Dong Li, Cheng Chang, Yangjun Zhang, Shaoqiong Yi, Fan Hu, Wenjie Shu, Lingqiang Zhang, Chun‐Ping Cui   +14 more
wiley   +1 more source

Egg production curve fitting using nonlinear models for selected and nonselected lines of White Leghorn hens.

Poultry Science, 2012
Egg production curves describe the laying patterns of hen populations over time. The objectives of this study were to fit the weekly egg production rate of selected and nonselected lines of a White Leghorn hen population, using nonlinear and segmented ...
R. Savegnago, V. Cruz, S. B. Ramos, S. L. Caetano, G. S. Schmidt, M. Ledur, L. Faro, D. Munari   +7 more
semanticscholar   +1 more source

Cinobufagin Directly Targets PDE4D to Disrupt Fibroblast–Dendritic Cell Crosstalk in Atopic Dermatitis

Advanced Science, EarlyView.
Single‐cell RNA sequencing revealed that MIF signaling drives inflammatory fibroblastmyeloid cell crosstalk in atopic dermatitis. Cinobufagin, a potent PDE4D inhibitor, suppresses MIF and reduces inflammation by restoring the cAMP/PKA/CREB pathway. Genetic knockout validates PDE4D as a key driver and promising therapeutic target for atopic dermatitis ...
Shicong Li, Dihui Xu, Chenyang Zhang, Chunxiu Xiao, Meng Yu, Jiaojiao Wang, Wenyuan Wu, Xiang Lv, Dongping Yuan, Liang Zhang, Min Hong, Jing Zhou, Yang Sun, Hongyue Ma, Yuyu Zhu   +14 more
wiley   +1 more source

Calhm6 Governs Macrophage Polarization Through Chp1‐Camk4‐Creb1 Axis and Ectosomal Delivery in Inflammatory Responses

Advanced Science, EarlyView.
Calhm6 drives M2 macrophage polarization via the Chp1‐Camk4‐Creb1 axis, suppressing inflammation through calcium‐dependent ectosomal delivery. Calhm6 deficiency enhances M1 responses, boosting bactericidal activity but exacerbating tissue damage. LPS/IFNγ upregulate Calhm6 via Irf1, while IL‐4/Stat6 inhibits it, balancing immune outcomes.
Yanlong Xin, Xiaofan Xiong, Yan Zhang, Siyu Zhang, Shuting Zhang, Yu Yang, Yingxue Liang, Lulu Zang, Xi Chen, Wenjuan Li, Issam Halalmeh, Rui Zhou, Zongfang Li, Haowen Liu, Jing Geng   +14 more
wiley   +1 more source