Article
Veterinary Sciences
Marina Hosotani, Sohei Hamano, Tomohito Iwasaki, Yasuhiro Hasegawa, Hiromi Ueda, Takafumi Watanabe
Summary: Internal laying and egg-bound syndrome are avian reproductive disorders that reduce egg productivity. This study found that the oviductal ciliated epithelium of hens with these disorders had a larger region lacking cilia and infiltration of T-cells in the lamina propria. The morphological alteration of ciliated epithelial cells caused by inflammation may be the underlying cause of these disorders.
VETERINARY SCIENCES
(2023)
Article
Agriculture, Dairy & Animal Science
T. Nii, T. Shinkoda, N. Isobe, Y. Yoshimura
Summary: This study aimed to investigate the effects of vaginal administration of Lactobacillus johnsonii on the mucosal barrier function of the oviduct. The results showed that vaginal administration of L. johnsonii improved the oviductal mucosa microbiota, enhanced the mucosal barrier function, and increased the ratio of beneficial bacteria while decreasing the ratio of pathogenic bacteria.
Article
Agriculture, Dairy & Animal Science
L. L. Li, Z. P. Liu, C. A. Liu, S. S. Elnesr, S. S. Guo, B. Y. Ding, X. T. Zou
Summary: This study investigated the disturbance of calcium signal in the simulated salpingitis of laying hens. The results showed that the mRNA expression of calcium/calmodulin dependent protein kinase IV (CaMK IV), sarcoplasmic/endoplasmic reticulum calcium ATPase (SERCA), and plasma membrane calcium-transporting ATPase (PMCA) were decreased in magnum of laying hens from LPS and LPS+OCR groups. Moreover, the mRNA expression of calcium sensing receptor (CaSR) and Orail in uterus from LPS+OCR group were higher than that from Control. These findings provide new insight for alleviating salpingitis and uterine dysfunction of laying hens.
Article
Geriatrics & Gerontology
Inna Bendikov-Bar, Sergey Malitsky, Maxim Itkin, Mark Rusal, Dror Sagi
Summary: The study used laying hens as a model and identified biomarkers of aging through metabolomic profiling. Results showed that these markers can predict the age group of individuals and noise is a universal biomarker of aging. Additionally, animals under time-restricted feeding appeared younger based on the markers.
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
(2021)
Article
Veterinary Sciences
Qingxiu Liu, Wenxiang Li, Jiatu Zhang, Lihong Zhao, Cheng Ji, Jianyun Zhang, Shimeng Huang, Qiugang Ma
Summary: This study investigated the effects of lipoamide (LAM) in alleviating the harmful effects of oxidized fish oil (OFO) on reproductive performance and oxidative damage to the oviduct in laying hens. The results showed that LAM supplementation improved laying performance, immune function, and antioxidant parameters in serum and oviduct tissues, while reducing inflammation. LAM administration could alleviate host metabolic dysfunctions and inflammatory damage, and then ameliorate oxidative damage in the oviduct induced by OFO, ultimately improving reproductive function.
FRONTIERS IN VETERINARY SCIENCE
(2022)
Article
Fisheries
Michel B. Verwoolde, Robin H. G. A. van den Biggelaar, Ger de Vries Reilingh, Joop A. J. Arts, Jurgen van Baal, Aart Lammers, Christine A. Jansen
Summary: The study showed that monocytes from different genetic backgrounds can be trained, but there are differences in immune functionality associated with innate training between layers and broilers. These differences may have an impact on disease resistance, though further research is needed to elucidate this.
DEVELOPMENTAL AND COMPARATIVE IMMUNOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
Y. F. Gu, Y. P. Chen, R. Jin, C. Wang, C. Wen, Y. M. Zhou
Summary: This study found that supplementing laying hens with 15 mg/kg of chitooligosaccharide (COS) can alleviate the damage caused by lipopolysaccharide (LPS) to intestinal barrier, oxidative, and immune stresses.
Article
Agriculture, Dairy & Animal Science
Jia Feng, Mingyuan Lu, Lingling Ma, Haijun Zhang, Shugeng Wu, Kai Qiu, Yuna Min, Guanghai Qi, Jing Wang
Summary: This study investigated the effects of uterine inflammation on eggshell mineralization, ultrastructure, and mechanical properties in laying hens. The results showed that uterine inflammation significantly reduced eggshell thickness and mechanical properties, while the addition of essential oil alleviated inflammation and improved eggshell quality. These findings are important for understanding the impact of uterine inflammation on eggshell quality.
Article
Agriculture, Dairy & Animal Science
Y. F. Gu, Y. P. Chen, R. Jin, C. Wang, C. Wen, Y. M. Zhou
Summary: The study revealed that with increasing age, the hepatic metabolism and antioxidant capacity of laying hens undergo changes, leading to reduced liver function in older hens compared to younger ones.
Article
Agriculture, Dairy & Animal Science
L. L. Li, P. T. Xu, Z. P. Liu, C. A. Liu, X. Y. Dong, Z. F. Zhang, S. S. Guo, B. Y. Ding
Summary: This study simulated salpingitis in laying hens by observing the morphology and expression of inflammatory genes in the oviduct. The results showed that treatment with LPS + OCR caused morphological damage to the fallopian tube tissue and increased expression of inflammatory factors.
Article
Agriculture, Dairy & Animal Science
Zhenchuan Cui, Ruiqiang Zhang, Bing Dai, Chunsheng Fu, Guiling Zhao, Yinglei Xu, Caimei Yang
Summary: The research concluded that glyceryl monolaurate can be a safe and green additive in food and feed. It significantly improves laying performance and egg quality in laying hens, reduces inflammation, promotes immune function and intestinal barrier function, and regulates the intestinal flora.
Article
Veterinary Sciences
A. Muhammad, A. M. Dalia, T. C. Loh, H. Akit, A. A. Samsudin
Summary: The study found that organic selenium supplementation can increase the expression of genes responsible for eggshell biomineralization in laying hens, thereby improving eggshell protection and the hen's antioxidant capacity.
BMC VETERINARY RESEARCH
(2021)
Article
Automation & Control Systems
Xiao Yang, Ramesh Bist, Sachin Subedi, Zihao Wu, Tianming Liu, Lilong Chai
Summary: Poultry behavior is crucial for assessing their welfare, health, and production performance. This study developed a six-behavior classifier based on multiple CNN models, including feeding, drinking, walking, perching, dust bathing, and nesting behaviors. The classifier, trained and validated on a dataset of 12,000 images, achieved an average accuracy of 95.3% with the best model YOLOv5-cls-m.
ENGINEERING APPLICATIONS OF ARTIFICIAL INTELLIGENCE
(2023)
Article
Biology
Pol Fernandez-Lopez, Joan Garriga, Isabel Casas, Marc Yeste, Frederic Bartumeus
Summary: Understanding the relationship between sperm motility and fertility is important for both evolutionary and practical purposes. This study characterizes pig sperm motility using t-SNE, a method that reveals a hierarchical organization of sperm motility across individuals and enables accurate fertility predictions. The findings suggest that high-speed and straight-lined motion are positively correlated with fertility and are more important than other sources of variability. The study proposes the use of embedding methods and Bayesian inference frameworks to better understand the relationship between fertility and sperm motility in animals, including humans.
COMMUNICATIONS BIOLOGY
(2022)
Article
Nutrition & Dietetics
Xinyu Chang, Kai Qiu, Jing Wang, Haijun Zhang, Shizhou You, Shuichao Mi, Guanghai Qi, Shugeng Wu
Summary: This study found that the addition of UPro can improve intestinal health, increase nutrient absorption, and enhance egg quality in laying hens. The possible mechanism may involve up-regulating the expression of Sec23A and POMT1 in the magnum, leading to improved albumen quality and processing characteristics.
FRONTIERS IN NUTRITION
(2021)
Article
Agriculture, Dairy & Animal Science
T. Nii, T. Bungo, N. Isobe, Y. Yoshimura
Article
Immunology
Fika Yuliza Purba, Jo Ueda, Takahiro Nii, Yukinori Yoshimura, Naoki Isobe
VETERINARY IMMUNOLOGY AND IMMUNOPATHOLOGY
(2020)
Article
Agriculture, Dairy & Animal Science
T. Terada, T. Nii, N. Isobe, Y. Yoshimura
Article
Agriculture, Dairy & Animal Science
Masahiro Shimizu, Takahiro Nii, Naoki Isobe, Yukinori Yoshimura
Article
Agriculture, Dairy & Animal Science
Fika Yuliza Purba, Takahiro Nii, Yukinori Yoshimura, Naoki Isobe
REPRODUCTION IN DOMESTIC ANIMALS
(2020)
Article
Physiology
Takahiro Nii, Takashi Bungo, Naoki Isobe, Yukinori Yoshimura
Summary: The oral administration of a lower dose of DSS caused slight disruptions in the intestinal environment, resulting in poor intestinal morphology and decreased cecal microbiome diversity. This led to a decrease in egg yolk size but did not reduce the supply of VLDLy from the liver. The reduction in egg yolk size was likely due to dysfunction in the uptake of egg-yolk precursors in ovarian follicles.
FRONTIERS IN PHYSIOLOGY
(2021)
Article
Agriculture, Dairy & Animal Science
Yukinori Yoshimura, Hiroya Kondo, Kyota Takamatsu, Yusaku Tsugami, Takahiro Nii, Naoki Isobe
Summary: This study aimed to investigate the response of the innate immune system in the proventriculus of broiler chicks to lipopolysaccharide (LPS) and how this response is influenced by Newcastle disease and infectious bronchitis (ND/IB) vaccination. The results showed that LPS derived from gram-negative bacteria can upregulate the innate immune system in the proventriculus, including the synthesis of antimicrobial peptides. ND/IB vaccination may not significantly affect antimicrobial peptide synthesis in response to LPS, but it can upregulate Toll-like receptor 21 expression.
Article
Agriculture, Dairy & Animal Science
T. Nii, T. Shinkoda, N. Isobe, Y. Yoshimura
Summary: This study aimed to investigate the effects of vaginal administration of Lactobacillus johnsonii on the mucosal barrier function of the oviduct. The results showed that vaginal administration of L. johnsonii improved the oviductal mucosa microbiota, enhanced the mucosal barrier function, and increased the ratio of beneficial bacteria while decreasing the ratio of pathogenic bacteria.
Article
Reproductive Biology
M. Elhamouly, T. Nii, N. Isobe, Y. Yoshimura
Summary: This study aimed to identify the cause for inferior quality egg production of aged hens by investigating the aging-associated molecular changes related to eggshell formation and determining the role of nitric oxide in decreasing egg quality. The results showed that molecular changes in the uterine mucosa affect eggshell membrane formation and eggshell biomineralization, while nitric oxide overproduction may play a role in this dysfunction.
Article
Agriculture, Dairy & Animal Science
Naoki Suzuki, Fika Yuliza Purba, Yoshiaki Hayashi, Takahiro Nii, Yukinori Yoshimura, Naoki Isobe
ANIMAL SCIENCE JOURNAL
(2020)
Article
Agriculture, Dairy & Animal Science
Naoki Isobe, Shoko Matsukawa, Kota Kubo, Kazutoshi Ueno, Toshihisa Sugino, Takahiro Nii, Yukinori Yoshimura
ANIMAL SCIENCE JOURNAL
(2020)
Article
Agriculture, Dairy & Animal Science
Takumi Terada, Takahiro Nii, Naoki Isobe, Yukinori Yoshimura
JOURNAL OF POULTRY SCIENCE
(2020)
Article
Agriculture, Dairy & Animal Science
Takahiro Nii, Haruna Kakuya, Naoki Isobe, Yukinori Yoshimura
JOURNAL OF POULTRY SCIENCE
(2020)
Article
Agriculture, Dairy & Animal Science
Takahiro Nii, Jirapat Jirapat, Naoki Isobe, Yukinori Yoshimura
JOURNAL OF POULTRY SCIENCE
(2020)
Article
Agriculture, Dairy & Animal Science
Takumi Terada, Takahiro Nii, Naoki Isobe, Yukinori Yoshimura
JOURNAL OF POULTRY SCIENCE
(2020)