Poultry Science最新文献

{"title":"Localization and expression of C1QTNF6 in chicken follicles and its regulatory effect on follicular granulosa cells.","authors":"Chong Li, Qi Li, Xing Wu, Zihao Zhang, Jing Li, Ruirui Jiang, Guoxi Li, Xiaojun Liu, Xiangtao Kang, Zhuanjian Li, Donghua Li, Yadong Tian","doi":"10.1016/j.psj.2024.104538","DOIUrl":"https://doi.org/10.1016/j.psj.2024.104538","url":null,"abstract":"<p><p>C1q/tumor necrosis factor-related protein 6 (C1QTNF6) is a newly discovered adiponectin analog that plays a significant role in female reproduction. However, its expression and function in chickens remain unclear. In this study, the full-length coding sequence (CDS) of chicken C1QTNF6 was cloned from adult chicken ovary. We demonstrated that the putative C1QTNF6 protein shares a highly conserved amino acid sequence with known bird homologs. Using quantitative real-time PCR (qRT-PCR) and fluorescence in situ hybridization (FISH), we observed that C1QTNF6 is widely expressed in adult chicken follicle tissues, predominantly in granulosa cells (GCs). In vitro, stimulation with follicle-stimulating hormone (FSH) and luteinizing hormone (LH) significantly increased the expression of C1QTNF6 in chicken preovulatory granulosa cells (PoGCs) and prehierarchical granulosa cells (PhGCs), respectively. Overexpression and knockdown experiments in granulosa cells revealed that C1QTNF6 affects the proliferation and apoptosis of granulosa cells, reducing the expression of steroid hormone synthesis-related genes (STAR, Cyp11a1, Cyp19a1, and 3B-HSD) and hormones (progesterone and estrogen). In granulosa cells (GCs), co-treatment with C1QTNF6 and AdipoRon (an activator of adiponectin receptors) showed that AdipoRon promotes progesterone secretion, while C1QTNF6 inhibits AdipoR1 (adiponectin receptor 1) expression. There was no synergistic effect between C1QTNF6 and AdipoRon in steroid hormone production. Collectively, these findings suggest that C1QTNF6 may be a candidate gene for regulating follicular development and reproductive performance in chickens.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 1","pages":"104538"},"PeriodicalIF":3.8,"publicationDate":"2024-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142681040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Protective effect of adiponectin on oxidative stress-induced ovarian granulosa cell senescence in geese","authors":"Yan Zheng ,&nbsp;Yunqiao Qiu ,&nbsp;Ming Gao,&nbsp;Qianhui Wang,&nbsp;Lei Yu,&nbsp;Zhongzan Cao,&nbsp;Xinhong Luan","doi":"10.1016/j.psj.2024.104529","DOIUrl":"10.1016/j.psj.2024.104529","url":null,"abstract":"<div><div>Geese are susceptible to oxidative stress during breeding, leading to senescence of granulosa cells (GCs) and reduced egg production. Adiponectin (ADPN) is a cytokine secreted by adipose tissue that functions to regulate metabolism and antioxidants. However, its role in the regulation of goose GCs is unclear. To investigate this, senescence in primary goose GCs was induced by D-gal and assessed via RT‒qPCR, senescence-associated β-galactosidase (SA-β-gal) staining, immunofluorescence, flow cytometry, and transcriptomics. The effect of ADPN on GC senescence was investigated by overexpressing and knocking down ADPN expression. The results showed that ADPN could alleviate oxidative stress and cell cycle arrest in GCs, reduce the expression of the senescence-associated secretory phenotype (SASP)-related genes <em>IL-6</em> and <em>IL-8</em>, regulate the metabolic capacity of GCs, reduce the accumulation of SA-β-gal, maintain telomere length, and alleviate the senescence of GCs induced by D-gal. The RNA-seq results provided further evidence for the regulatory effect of ADPN on GC senescence. ADPN was shown to attenuate oxidative stress-induced GC senescence through the AGE (Advanced glycation end products)-RAGE (Receptor of advanced glycation end products) and NOD-like receptor pathways. These findings may contribute to the development of improved theoretical references for improving egg-laying performance and prolonging the service life of geese.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 1","pages":"Article 104529"},"PeriodicalIF":3.8,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142639626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Utilization of edible poultry slaughter residues: A chicken-liver hydrolysate with glucose-lowering ability and upregulating glycogenesis in type II diabetes.","authors":"Yi-Ling Lin, Yu-Pei Chen, Sheng-Yao Wang, Yi-Feng Kao, Chompunut Lumsangkul, Yi-Chen Chen","doi":"10.1016/j.psj.2024.104517","DOIUrl":"https://doi.org/10.1016/j.psj.2024.104517","url":null,"abstract":"<p><p>Approximately 10,000 metric tons of broiler livers are yielded every year in Taiwan. However, due to unpleasant odor and health concern, these livers are typically discarded as waste in the slaughtering stream in most developed or developed countries. In alignment with global agrocycle policies, a biofunctional chicken-liver hydrolysate (CLH) has been developed. This study was to investigate the effects of CLHs on glucose homeostasis and complications in type II diabetes. Insulin resistance was induced in liver (FL83B) and muscle (C2C12) cells using 30 and 20 ng TNF-α/mL, respectively, resulting in decreased glucose uptake and lower expressions of IRβ, p-Akt/Akt, and p-GSK3/GSK. CLH supplementation significantly upregulated (p<0.05) glucose uptakes and these proteins. In db/db mice, CLH supplementation improved insulin resistance, as shown by OGTT assay, HOMA-IR value and serum glucose levels, while also reducing serum lipids and liver damage indices (p<0.05). Additionally, CLH ameliorated (p<0.05) decreased hindlimb-gastrocnemius weight, and liver lipid contents, oxidative stress (sera and liver) and inflammatory cytokines. Increased glycogen accumulation was visualized in PAS-stained liver and hindlimb tissues of db/db mice supplemented with CLHs, consistent with upregulated glycogenesis in TNF-α-induced liver and muscle cells through the IRβ-Akt-GSK3 pathway. These findings suggest CLH may offer a mitigation against hyperglycemia and associated complications in type II diabetes, while also highlighting a sustainable solution for utilizing poultry slaughter residues.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 1","pages":"104517"},"PeriodicalIF":3.8,"publicationDate":"2024-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142688629","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Benzoic Acid potentiates intestinal IgA response in broiler chickens against Salmonella enterica Serovar Typhimurium infection","authors":"Junpeng Jia,&nbsp;Ruiling Liu,&nbsp;Rongfeng Tang,&nbsp;Jian Lin,&nbsp;Qian Yang","doi":"10.1016/j.psj.2024.104505","DOIUrl":"10.1016/j.psj.2024.104505","url":null,"abstract":"<div><div>As a feed additive, Benzoic Acid (BA) has been demonstrated to significantly enhance feed conversion efficiency, regulate gastrointestinal pH, and improve overall animal health. Young animals, highly susceptible to <em>S.</em> Typhimurium infection, suffer from high mortality rates and substantial economic losses due to this pathogen. Despite promising indications of BA's immunomodulatory potential in boosting intestinal immunity, its underlying mechanisms remain insufficiently understood. This study investigates how BA strengthens intestinal anti-infection defenses in young animals via immunomodulatory pathways, focusing on its impact on macrophage polarization and IgA-mediated immune responses. Employing in vitro cell experiments and animal models, we examined the macrophage phenotypic alterations following BA treatment. We assessed the expression of immune-related genes in the intestine through immunofluorescence staining, Western blotting, and quantitative real-time PCR. The results demonstrate that BA promotes M2 macrophage polarization by activating the mTOR/PPAR-γ/STAT3 signaling pathways. Furthermore, BA enhances the intestinal expression of the polymeric immunoglobulin receptor (<em>PIgR</em>), B-cell activating factor (<em>BAFF</em>) from the TNF family, and activation-induced cytidine deaminase (<em>AID</em>), thereby enhancing IgA production by B-cells. These results underscore the potential of BA to bolster innate immune functions in young chickens, mitigate intestinal damage caused by <em>S.</em> Typhimurium infection, and ultimately promote both animal health and food safety.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"103 12","pages":"Article 104505"},"PeriodicalIF":3.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626970","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unveiling the role of long non-coding RNAs in chicken immune response to highly pathogenic avian influenza H5N1 infection.","authors":"Thi Hao Vu, Chaeeun Kim, Anh Duc Truong, Jun-Mo Kim, Hyun S Lillehoj, Yeong Ho Hong","doi":"10.1016/j.psj.2024.104524","DOIUrl":"https://doi.org/10.1016/j.psj.2024.104524","url":null,"abstract":"<p><p>Avian influenza viruses (AIVs) pose a significant threat to global poultry production, necessitating effective control strategies to mitigate economic losses and ensure animal welfare. Long non-coding RNAs (lncRNAs) have emerged as crucial regulators of immune responses, yet their roles in AIV-infected chickens remain poorly understood. This study aimed to investigate the expression profiles of lncRNAs and their targets in Vietnamese Ri chickens infected with the highly pathogenic AIV (HPAIV) H5N1. Through RNA sequencing, we identified novel lncRNAs and analyzed differentially expressed (DE) transcripts at 1 and 3 days post-infection (dpi) in chicken lung tissue. Our results revealed a higher number of DE lncRNAs and mRNAs at 1 dpi and 3 dpi, respectively, compared to control, with resistant chickens exhibiting a notably stronger immune response than susceptible chickens at 3 dpi. Functional analysis implicated these lncRNAs in immune-related pathways crucial for host responses to H5N1 viral infection. Furthermore, we identified lncRNA-mRNA interactions associated with antiviral responses and immune function. Notably, several genes involved in antiviral resistance and immune responses showed higher expression in resistant chickens, confirming their stronger antiviral response. Overall, our study provides insights into the role of lncRNAs in the host's response to HPAIV H5N1 infection in chickens and highlights potential candidates for further investigation into host-pathogen interactions. These findings could drive the development of novel control strategies for AIVs, significantly enhancing poultry health and biosecurity.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 1","pages":"104524"},"PeriodicalIF":3.8,"publicationDate":"2024-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142676696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Low protein diet influences mineral absorption and utilization in medium-growing yellow-feathered broilers from 1 to 30 days of age.","authors":"Xiaoran Li, Chong Wang, Shunying Li, Liyang Zhang, Xiudong Liao, Lin Lu","doi":"10.1016/j.psj.2024.104512","DOIUrl":"https://doi.org/10.1016/j.psj.2024.104512","url":null,"abstract":"<p><p>Reduced-protein diet can save protein ingredients and reduce nitrogen (N) losses. However, the effect of low protein diet on the mineral uptake and utilization in broilers needs to be explored. The aim of this study was to investigate the effect of low-protein diet on the growth performance, N deposition, mineral contents in serum, tissues and excreta, and the activities and gene expression of related enzymes in tissues of medium-growing yellow-feathered broilers, so as to elucidate the relationship between dietary protein level and the absorption and utilization of minerals in broilers. A total of 72 1-d-old Spotted-Brown male broilers were randomly allotted to 1 of 2 treatments with 6 replicate cages of 6 birds per cage for each treatment. The dietary crude protein (CP) levels for the two treatments were 21 % (the control treatment) and 19 % (low protein treatment), respectively. The experimental period was 30 d. The results showed that no differences (P > 0.05) were detected in average daily gain, average daily feed intake and feed: gain ratio of broilers during 1 to 30 d between the two treatments. However, low protein intake increased (P < 0.05) N retention rate, serum P, Cu and Mn, and excreta Cu, Mn and Zn, and decreased (P < 0.05) liver P and excreta P. In addition, birds fed low protein diet had higher (P < 0.05) manganese superoxide dismutase, and total superoxide dismutase activities in liver, and total antioxidant capacity and malondialdehyde content in heart, and lower (P < 0.05) copper-zinc superoxide dismutase (CuZnSOD) and succinate dehydrogenase activities in liver and CuZnSOD mRNA level in heart. In conclusion, the reduction of dietary CP content from 21 % to 19 % improved N retention, the absorption of P, Cu and Mn, as well as the antioxidant ability of liver and heart, and influenced metabolic utilization of P, Cu, Zn, Fe and Mn in medium-growing yellow-feathered broilers from 1 to 30 d of age.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"103 12","pages":"104512"},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142625424","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research note: Simultaneous detection of GPV, H5 AIV, and GoAstV via TaqMan probe-based multiplex qPCR","authors":"Xiaoquan Wang ,&nbsp;Miao Cai ,&nbsp;Xiaolong Lu ,&nbsp;Qianqian Xu ,&nbsp;Yanhong Wang ,&nbsp;Wenhao Yang ,&nbsp;Kaituo Liu ,&nbsp;Ruyi Gao ,&nbsp;Yu Chen ,&nbsp;Jiao Hu ,&nbsp;Min Gu ,&nbsp;Shunlin Hu ,&nbsp;Xiufan Liu ,&nbsp;Xiaowen Liu","doi":"10.1016/j.psj.2024.104511","DOIUrl":"10.1016/j.psj.2024.104511","url":null,"abstract":"<div><div>The endemic status of goose parvovirus (GPV), H5 subtype avian influenza virus (AIV), and goose astrovirus (GoAstV) infections continues to devastate the poultry industry in China. Despite this, there exists a notable gap in the application of molecular diagnostic techniques. This investigation described the development of a multiplex qualitative polymerase chain reaction (qPCR) assay capable of concurrently detecting GPV, H5 AIV, and GoAstV, with no cross-reactivity observed with other avian viral pathogens. The assay exhibited a detection threshold of 10 copies/μL for both GPV and GoAstV, and 1 copy/μL for H5 AIV. The intra- and inter-assay coefficients of variation were &lt; 3.0%, signifying high repeatability within and across assay batches. Utilizing this multiplex qPCR assay, a batch of 60 clinical samples was analyzed to assess its practical utility. The detected prevalence rates for GoAstV, GPV, and H5 AIV were 35.0% (21/60), 21.7% (13/60), and 15.0% (9/60), respectively. Concurrent infections were also identified, with rates for GPV + GoAstV, GPV + H5 AIV, GoAstV + H5 AIV, and GPV + GoAstV + H5 AIV being 6.7% (4/60), 3.3% (2/60), 3.3% (2/60), and 3.3% (2/60), respectively. The developed multiplex qPCR assay exhibited a diagnostic concordance rate equivalent to that of traditional PCR techniques. This novel assay serves as a rapid, efficient, specific, and sensitive tool for the detection of prevalent goose viruses, thereby enhancing disease management strategies and epidemiological monitoring efforts.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"103 12","pages":"Article 104511"},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142625960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research note: Whole-genome sequencing revealed genomic diversity dynamics in duck conserved populations.","authors":"Yu-Ze Yang, Zhong-Tao Yin, Xiao-Ran Lin, Chun-Ying Zhao, Fang-Xi Yang, Fei-Fan Chen, Zhuo-Cheng Hou","doi":"10.1016/j.psj.2024.104509","DOIUrl":"https://doi.org/10.1016/j.psj.2024.104509","url":null,"abstract":"<p><p>The purpose of this study was to comprehensively analyze the genetic diversity of the Pekin duck conserved population with five generations and to evaluate the effectiveness of the current conservation strategy. In total, 277 Pekin duck conserved individuals and 40 Mallards as ancestral controls were collected. Each duck was sequenced at about 10X whole-genome coverage, while over 7.4 million single nucleotide polymorphisms (SNPs) in total were detected for genetic diversity analysis. Both the expected heterozygosity and observed heterozygosity values exceeded 0.3. The genetic differentiation (F_ST) values ranged from 0.007 to 0.039, and the Polymorphism information content (PIC) values ranged from 0.29 to 0.34. These results indicate no significant differentiation between generations, and the genetic diversity remains high. In particular, the inbreeding coefficient has been strictly controlled and has not increased rapidly during the conservation. Overall, the inbreeding coefficient of the conserved Pekin duck population was higher than that of its wild ancestors, indicating that domestication has resulted in reduced genetic diversity. This is the first report using whole genome resequencing data to systematically evaluate the genomic dynamics across several generations in ducks. The results show that the strategy of free mating and random seed retention within sire families is effective for maintaining the genetic diversity of the conserved Pekin duck population.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 1","pages":"104509"},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142682314","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A PLIN1 polymorphism is associated with fat production in male emus","authors":"Yuichi Koshiishi ,&nbsp;Ryo Takahashi ,&nbsp;Michiko Murata-Okubo ,&nbsp;Yuichi Kameyama ,&nbsp;Kousaku Souma ,&nbsp;Hiroki Hirayama ,&nbsp;Kenta Wada","doi":"10.1016/j.psj.2024.104513","DOIUrl":"10.1016/j.psj.2024.104513","url":null,"abstract":"<div><div>The emu (<em>Dromaius novaehollandiae</em>) is a novel poultry species that produces meat, eggs, and fat. Although emus have recently been domesticated, genetic improvements to establish strains have scarcely progressed. In this study, we investigated the relationship between production traits and perilipin 1-encoding gene (<strong><em>PLIN1</em></strong>) polymorphisms in the emus. We determined the partial complementary DNA (<strong>cDNA</strong>) sequence of the <em>PLIN1</em>, which is involved in lipid droplet formation. We identified four nucleotide substitution sites (c.270C&gt;T, c.321T&gt;C, c.587A&gt;T, and c.639C&gt;T) in the <em>PLIN1</em> gene of emus. Of these, c.587A&gt;T is a non-synonymous substitution that converts lysine to methionine at the 196th codon (p.K196M). Although p.K196M was predicted to affect the production traits of emus, a large deflection in genotype frequency was observed in this study; thus, we could not investigate the relationship between genotypes and phenotypes. In males, the fat yields of the CC, CT, and TT genotypes in c.270C&gt;T were 0.25 ± 0.06, 0.22 ± 0.06, and 0.21 ± 0.07 kg, respectively, while the meat yields of the CC, CT, and TT genotypes in c.270C&gt;T were 0.15 ± 0.01, 0.16 ± 0.02, and 0.16 ± 0.03 kg, respectively. These results indicate that male emus with the CC genotype had a significantly higher fat content and lower meat productivity than male emus with the other genotypes (<em>P</em> &lt; 0.05). Therefore, c.270C&gt;T in <em>PLIN1</em> affects fat and meat production in males. Our findings may contribute to the effective genetic improvement of the emus.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"103 12","pages":"Article 104513"},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142626938","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Monitoring poultry social dynamics using colored tags: Avian visual perception, behavioral effects, and artificial intelligence precision.","authors":"Florencia B Rossi, Nicola Rossi, Gabriel Orso, Lucas Barberis, Raul H Marin, Jackelyn M Kembro","doi":"10.1016/j.psj.2024.104464","DOIUrl":"https://doi.org/10.1016/j.psj.2024.104464","url":null,"abstract":"<p><p>Artificial intelligence (AI) in animal behavior and welfare research is on the rise. AI can detect behaviors and localize animals in video recordings, thus it is a valuable tool for studying social dynamics. However, maintaining the identity of individuals over time, especially in homogeneous poultry flocks, remains challenging for algorithms. We propose using differentially colored \"backpack\" tags (black, gray, white, orange, red, purple, and green) detectable with computer vision (eg. YOLO) from top-view video recordings of pens. These tags can also accommodate sensors, such as accelerometers. In separate experiments, we aim to: (i) evaluate avian visual perception of the different colored tags; (ii) assess the potential impact of tag colors on social behavior; and (iii) test the ability of the YOLO model to accurately distinguish between different colored tags on Japanese quail in social group settings. First, the reflectance spectra of tags and feathers were measured. An avian visual model was applied to calculate the quantum catches for each spectrum. Green and purple tags showed significant chromatic contrast to the feather. Mostly tags presented greater luminance receptor stimulation than feathers. Birds wearing white, gray, purple, and green tags pecked significantly more at their own tags than those with black (control) tags. Additionally, fewer aggressive interactions were observed in groups with orange tags compared to groups with other colors, except for red. Next, heterogeneous groups of 5 birds with different color tags were videorecorded for 1 h. The precision and accuracy of YOLO to detect each color tag were assessed, yielding values of 95.9% and 97.3%, respectively, with most errors stemming from misclassifications between black and gray tags. Lastly using the YOLO output, we estimated each bird's average social distance, locomotion speed, and the percentage of time spent moving. No behavioral differences associated with tag color were detected. In conclusion, carefully selected colored backpack tags can be identified using AI models and can also hold other sensors, making them powerful tools for behavioral and welfare studies.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 1","pages":"104464"},"PeriodicalIF":3.8,"publicationDate":"2024-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142693386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}