Poultry Science最新文献

{"title":"Impacts of an energy sparing feed additive on turkeys fed titrating reduced energy diets","authors":"Brooke A. Wilson ,&nbsp;Brian J. Kerr ,&nbsp;Brett C. Ramirez ,&nbsp;Dawn A. Koltes","doi":"10.1016/j.psj.2025.105046","DOIUrl":"10.1016/j.psj.2025.105046","url":null,"abstract":"<div><div>Providing amino acids, energy, and minerals are costly dietary components in formulating diets for turkeys, with corn, soybean meal, and oils being of utmost interest due to their percent inclusion levels. In addition, the highest feed consumption occurs in the grower-finisher (GF) phase of production making diet formulation during this period of growth critically important. Reducing feed cost through reductions in expensive energy sources (e.g., fats) in a turkey diet while maintaining performance and carcass traits could greatly benefit turkey production profitability. The current study evaluated the effects of the addition of a commercial energy sparing feed additive (Enercore®, Biosen LLC) in a series of reducing energy diets. Dietary treatments included a commercial control diet (CON) and 3 experimental diets with different levels of reduced Kcal to equal a 50 Kcal/kg deficit (ESFA 1), 70 Kcal/kg deficit (ESFA 2), and 100 Kcal/kg deficit (ESFA 3) with the inclusion of 1 kg/tonne of Enercore. At placement, 1,800 male turkeys were evenly placed across dietary treatments (<em>n</em> = 8 per treatment) and provided their dietary treatment through 18 wk of age. Body weights and feed weights were taken every 5 wk and before loadout. At 17 wk of age, one tom per pen was weighed and euthanized to determine breast yield and deboned thigh yield. Body weights and mortality percent were similar across diets at the end of 18 wk of age (<em>P</em> &gt; 0.140). Whereas, mortality-adjusted FCR was altered with dietary treatment with toms fed ESFA 2 having the lowest mortality-adjusted FCR (<em>P</em> &lt; 0.001) compared to all other dietary treatments. For carcass measurements, live weights of birds sampled, breast yield, and deboned thigh yield were similar between treatments (<em>P</em> &gt; 0.220). In conclusion, removal of 50 and 70 Kcal/kg of energy in turkey diets supplemented with an energy sparing feed additive did not significantly alter body weight or carcass yield but only the removal of 70 Kcal/kg with the ESFA, Enercore®, improved feed conversion.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 5","pages":"Article 105046"},"PeriodicalIF":3.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143767482","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":"Nutrient migration and lipidomics changes in the liquid inner core of alkali-pickled duck egg yolk","authors":"Dingrui Jia ,&nbsp;Yunxiao Xie ,&nbsp;Zihui Hu ,&nbsp;Di Zhu ,&nbsp;Hongliang Ye ,&nbsp;Mohan Qiu ,&nbsp;Fang Geng","doi":"10.1016/j.psj.2025.105084","DOIUrl":"10.1016/j.psj.2025.105084","url":null,"abstract":"<div><div>Preserved duck egg yolk (PEY) can be divided into a solidified outer layer (S-PEY) and a liquid inner core (L-PEY) during the middle-later stages of alkaline pickling. The differences among PEY, S-PEY, and L-PEY were systematically investigated using property characterization, nutrient determination, and lipidomics analysis. The results demonstrated that L-PEY exhibited a more vivid red-yellow color, with higher total protein, total lipid, and phosphorus contents compared to S-PEY. Conversely, the pH, moisture, and sodium contents were higher in S-PEY than in L-PEY. Quantitative lipidomics analysis revealed that L-PEY possessed a significantly higher total lipid abundance than PEY, with 19 lipid subclasses (551 lipid molecules) being notably more abundant in L-PEY. Phospholipids exhibited the most significant differential abundance, with the abundance of phosphatidylethanolamines (PE) and phosphatidylcholines (PC) in L-PEY being 19.6 and 13.6 times greater than those in S-PEY, respectively. These findings indicated that the alkaline pickling procedure resulted in substantial nutrient migration duck egg yolk, particularly in the case of phospholipids. The results provide novel insights into the processing mechanism of preserved duck egg yolk.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 5","pages":"Article 105084"},"PeriodicalIF":3.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715522","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":"Genomic analyses reveal a lack of widespread strong selection in indigenous chickens","authors":"Zilong Wen ,&nbsp;Xinyu Cai ,&nbsp;Zexuan Liu ,&nbsp;Lizhi Tan ,&nbsp;Yuan Kong ,&nbsp;Yuzhan Wang ,&nbsp;Yiqiang Zhao","doi":"10.1016/j.psj.2025.105081","DOIUrl":"10.1016/j.psj.2025.105081","url":null,"abstract":"<div><div>The study of domestication has been revolutionized with the advent of molecular genetics. Chickens, with their clear domestication history, emerge as an excellent model for study into the paths of evolution in domestication and improvement. Here we used genomic data from wild, indigenous, and commercial chickens to better understand how genetic drift and selection translate into their differentiations. Our investigation into the patterns of allelic change and divergence reveals a polygenic architecture governing genetic differentiation during domestication and improvement. We uncover distinctive population-specific differentiations in terms of genes and functions among wild, indigenous, and commercial chickens. Using Runs Of Homozygosity (ROH) based mixed model approach developed in this study, we identified only directional selection signatures occurring in wild and commercial chickens. Notably, our findings suggest that indigenous chickens serve as reservoirs of genetic diversity, necessary for rapid adaptation to new environments or subsequent modern breeding. This work provides unprecedented insights into the chicken domestication and improvement, and it illuminates our understanding of the domestication of other animal species.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 5","pages":"Article 105081"},"PeriodicalIF":3.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714951","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":"Effects and health risk assessments of different spray disinfectants on microbial aerosols in chicken houses","authors":"Huaxuan Zhao,&nbsp;Shangmin Li,&nbsp;Junhua Pu,&nbsp;Hongzhi Wang,&nbsp;Huiyong Zhang,&nbsp;Guohui Li,&nbsp;Liang Qu,&nbsp;Xinhong Dou","doi":"10.1016/j.psj.2025.105083","DOIUrl":"10.1016/j.psj.2025.105083","url":null,"abstract":"<div><div>This study aims to explore the effects of spray processes with four different disinfectants on airborne culturable and pathogenic microbial concentrations, microbial community compositions and health risk assessments in chicken houses. Results indicate that compared to the microbial concentrations before spraying, hypochlorous acid, glutaraldehyde-decamethonium bromide and sodium dichloroisocyanate increase culturable bacteria, culturable fungi, airborne <em>Staphylococcus</em> and <em>Candida albicans</em>, respectively. Beyond that, the spray processes with different disinfectants have no significant effects on the microbial concentrations. The total relative abundances (RAs) of the screened out 46 pathogenic bacterial genera decrease after spraying with povidone iodine, while increase after spraying with the other three disinfectants, which is opposite for the 35 pathogenic fungal genera. The core bacterial or fungal genera principally interrelate with each other through cooperation. Ammonia (NH₃) concentrations, relative humidity (RH) and temperature (T) influence bacterial communities in aerosols; while fungal communities are mainly affected by T, particulate matters and nitrous oxide (N₂O) concentrations. Long-term exposure to aerosols in chicken houses have potential adverse effects on human health and the spray processes with different disinfectants exacerbate the health risks of aerosols via inhalation. Hence, different spray disinfectants cannot significantly reduce the microbial aerosols in real chicken farm environments and the cleaning procedures should be comprehensively reviewed and optimized in livestock and poultry farms.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 5","pages":"Article 105083"},"PeriodicalIF":3.8,"publicationDate":"2025-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684542","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":"A life cycle assessment of broiler chicken meat and egg production in Iceland","authors":"Sara Björg Guðjónsdóttir ,&nbsp;Clara María Vásquez-Mejía ,&nbsp;Sankalp Shrivastava ,&nbsp;Ólafur Ögmundarson","doi":"10.1016/j.psj.2025.105072","DOIUrl":"10.1016/j.psj.2025.105072","url":null,"abstract":"<div><div>As the world population grows, so does the production and consumption of emission-intensive foods. To reduce environmental impacts of food systems, significant and immediate changes are needed, both by adopting more environmentally sustainable practices and changing people's diets. To evaluate these strategies in connection with their potential environmental impacts, additional research is required on staple food systems. This study aims to assess the potential environmental impacts of broiler chicken meat and egg production in Iceland, which have become important protein sources among its inhabitants. Life Cycle Assessment (LCA) was used to evaluate and analyze possible environmental impacts. Although both products are derived from the same species, the common practice amongst farmers is to produce broiler chicken meat and eggs in separate housing systems, and thus, each system was modeled independently from each other. The system boundary for broiler chicken meat production was cradle-to-slaughterhouse gate with the functional unit (FU1) of 1 kg of broiler chicken (carcass weight). The life cycle stages included feed production, rearing of birds, manure management, and slaughterhouse for broiler chicken. In addition, a scenario analysis with the functional unit based on 100g of edible protein was also conducted to assess the impact for meat only. For egg production, the system boundary used was cradle-to-farm gate, with the functional unit (FU2) of 1 kg of eggs.</div><div>Results showed that feed production has the greatest environmental impact within the life cycle of both broiler chicken meat and eggs for the analyzed impact categories. Most of the impact was caused by wheat, soybean, and maize, all of which are commonly used in poultry feed at a global level. The results showed that Icelandic poultry production has lower environmental impact compared to other international studies. Furthermore, the outcome could be used when assessing the impacts of Icelandic dietary guidelines in the future.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 6","pages":"Article 105072"},"PeriodicalIF":3.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143792741","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":"Exploring effects of dietary coffee pericarp addition on growth, meat quality, gut flora in white-feather broilers","authors":"Linxian Shan ,&nbsp;Jun He ,&nbsp;Ruijuan Yang ,&nbsp;Jinya Dong ,&nbsp;Zezhu Du ,&nbsp;Shengjie Duan ,&nbsp;Yanmei Li ,&nbsp;Xiuli Lu ,&nbsp;Yan Shen ,&nbsp;Jianyang Fu ,&nbsp;Shengmei Gao ,&nbsp;Xiaocui Du ,&nbsp;Chongye Fang","doi":"10.1016/j.psj.2025.105077","DOIUrl":"10.1016/j.psj.2025.105077","url":null,"abstract":"<div><div>The incorporation of coffee pericarp into poultry diets enhances chicken meat quality by modulating intestinal flora. This study investigates the effects of coffee pericarp on chicken meat quality through an analysis of growth performance, physical parameters, chemical composition, volatile compounds, and gut microbiome. The results demonstrate that adding coffee pericarp to the diet reduces drip loss and pH while improving meat color and increasing the levels of crude protein, amino acids, unsaturated fatty acids, and volatile compounds. Furthermore, coffee pericarp influences the metabolism of these compounds by increasing the relative abundance of beneficial bacteria, such as Firmicutes and Bacteroidetes, thereby enhancing meat quality. In conclusion, incorporating 2.5 % fermented coffee pericarp effectively regulates beneficial bacteria and significantly boosts the volatile compound content in white feather broilers, which is crucial for improving meat flavor and the economic viability of poultry production.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 5","pages":"Article 105077"},"PeriodicalIF":3.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143685422","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":"Green tea polyphenol epigallocatechin-3-gallate mediates an antioxidant response via Nrf2 pathway in heat-stressed poultry: A review","authors":"Ibrar Muhammad Khan ,&nbsp;Haji Gul ,&nbsp;Samiullah Khan ,&nbsp;Nourhan Nassar ,&nbsp;Anam Khalid ,&nbsp;Ayman A. Swelum ,&nbsp;Zaigui Wang","doi":"10.1016/j.psj.2025.105071","DOIUrl":"10.1016/j.psj.2025.105071","url":null,"abstract":"<div><div>Heat stress is a critical challenge in the poultry industry. It arises when birds are exposed to elevated ambient temperatures beyond their thermoneutral zone, often exacerbated by high humidity and inadequate ventilation. This condition disrupts the birds' ability to maintain thermal homeostasis, leading to physiological and behavioral changes such as increased panting, reduced feed intake, and elevated water consumption. These responses aim to dissipate heat but often result in energy imbalances, oxidative stress, and impaired immune function. Green tea polyphenols (<strong>GTPs</strong>) mitigate heat stress in poultry birds by modulating oxidative stress pathways, primarily by scavenging reactive oxygen species (<strong>ROS</strong>) and enhancing antioxidant defense mechanisms. These pathways play a pivotal role in neutralizing <strong>ROS</strong> generated during oxidative stress, inflammation, and exposure to electrophilic compounds. This action helps restore cellular balance and enhances overall antioxidant defense mechanisms by converting harmful free radicals into less reactive molecules, such as water and oxygen. Nuclear factor (erythroid-derived 2)-like 2 (<strong>Nrf2)</strong> plays a significant character in the activation of the enzymatic antioxidants network. It translocates to the nucleus upon activation, binds to antioxidant response elements (<strong>AREs</strong>) in the promoter regions of target genes, and upregulates the expression of key antioxidant enzymes. Therefore, the regulation of <strong>Nrf2</strong> is considered a critical molecular marker in mitigating the effects of heat stress, as its activation enhances the expression of antioxidant and detoxification enzymes, protecting against oxidative damage and inflammation induced by elevated temperatures. This exploratory review summarizes the antioxidant mechanisms and anti-oxidative stress effects of <strong>GTPs</strong> in mitigating heat stress in poultry. It highlights the cytoprotective molecular basis of epigallocatechin-3-gallate (<strong>EGCG</strong>), particularly its role in modulating Nrf2-mediated cellular pathways, which enhance antioxidant defense systems and protect against oxidative damage.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 5","pages":"Article 105071"},"PeriodicalIF":3.8,"publicationDate":"2025-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143715520","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":"Effects of β-glucan on the performance and gut integrity of broilers under acute heat stress conditions","authors":"Mohannad Abuajamieh,&nbsp;Mohmmad Al-Qaisi,&nbsp;Zeinab M.H. Mahasneh,&nbsp;Rahaf Istatieh,&nbsp;Mohamed A. Abedal-Majed,&nbsp;Anas Abdelqader,&nbsp;Abdur-Rahman Al-Fataftah","doi":"10.1016/j.psj.2025.105065","DOIUrl":"10.1016/j.psj.2025.105065","url":null,"abstract":"<div><div>Heat stress (HS) has negative impacts on farm animals. Many studies have been conducted to ameliorate the effects of HS in farm animals. The current project investigated the effects of β-glucan (BG) supplementation under thermo-neutral and HS conditions on the production, physiological, and histological parameters in broiler chickens. Three-hundred and twenty chicks were randomly assigned into four treatments (10 replicates/treatment; 8 chicks/replicate). The treatments were: 1) a basal diet (Ctrl); 2) a diet containing 1 g/kg of β-glucan (BG1); 3) a diet containing 2 g/kg of β-glucan (BG2); 4) a diet containing 3 g/kg of β-glucan (BG3). All treatments were reared under thermo-neutral (TN) conditions from day 0-30 days of age then exposed to cyclical HS at the age of 31 days for 3 consecutive days (4 hours/day). During HS conditions, BG3 has increased feed intake (FI; 23 %; <em>P</em> &lt; 0.01), and decreased rectal temperature (Tr) relative to the control treatment (0.5 °C; <em>P</em> &lt;0.01). Besides, supplementing BG has improved average daily gain under HS conditions. In addition, BG supplementation had a positive effect on intestinal morphometric parameters (villous height, width, depth, and surface area) under HS conditions. In conclusion, feeding BG improved FI, average daily gain (ADG), and intestinal health in heat-stressed broiler chickens.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 6","pages":"Article 105065"},"PeriodicalIF":3.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143734771","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":"Interactive effects of dietary grain and supplemental fat sources on growth performance and carcass characteristics of broiler chickens","authors":"Mengzhu Wang ,&nbsp;Shemil MacElline ,&nbsp;Peter H. Selle ,&nbsp;Sonia Y. Liu ,&nbsp;Mehdi Toghyani","doi":"10.1016/j.psj.2025.105076","DOIUrl":"10.1016/j.psj.2025.105076","url":null,"abstract":"<div><div>The current study investigated if grain type or supplemental fat sources affect or interact for growth performance and nutrients digestibility in broiler chickens offered starter and grower diets with lower metabolizable energy (ME) than breeder recommendations. The experiment was conducted using a completely randomized design with a 3 × 3 factorial arrangement of treatments with three grains (wheat, sorghum, barley) and three fat sources (canola oil, poultry fat, and beef tallow), resulting in nine treatments, each replicated eight times with 25 birds per replicate. Diets were fed in starter (0-10 days), grower (10-22 days), finisher (22-35 days), and withdrawal (35-42 days) phases. Starter and grower diets were formulated to 2875 and 2975 kcal/kg ME, 100 and 75 kcal/kg lower than breeder recommendations. Nutrient digestibility was assessed on day 33, and carcass characteristics were evaluated on day 42 of the trial. There was no significant effect of grain or fat source on body weight gain and feed conversion ratio (FCR) over the starter and grower phases (<em>P</em> &gt; 0.05). There were no interactions of feed grain and fat sources on overall growth performance and age to 2.5 kg body weight (<em>P</em> &gt; 0.05). As the main effect, sorghum-based diets significantly increased overall FCR (0-42 days) compared to wheat- and barley-based diets (<em>P</em> &lt; 0.05). Regardless of fat source, barley-based diets decreased breast meat yield and increased fat pad deposition (<em>P</em> &lt; 0.05). Sorghum-based diets resulted in the lowest ileal starch digestibility (<em>P</em> &lt; 0.05). An interaction between grain and fat source (<em>P</em> &lt; 0.01) showed that poultry fat and beef tallow in wheat-based diets improved crude protein digestibility compared to sorghum- and barley-based diets. In summary, these results indicate that all three grain and fat sources tested in this study can be incorporated into broiler chicken diets without significantly impacting growth rate. However, sorghum-based diets, irrespective of the supplemental fat source, result in lower starch digestibility and approximately a 2-point increase in feed conversion.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 5","pages":"Article 105076"},"PeriodicalIF":3.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684980","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":"LC/MS-based lipidomics and transcriptomics reveal lipid diversity and regulatory networks underlying intramuscular fat differences in Xingguo grey geese","authors":"Mengyun Zou ,&nbsp;Weihong Zhang ,&nbsp;Xiaolan Xiong ,&nbsp;Linjie Rao ,&nbsp;Qipeng Wei ,&nbsp;Haiqin Li ,&nbsp;Fanfan Zhang ,&nbsp;Jinfang Xie ,&nbsp;Zhangzhang Wang ,&nbsp;Jiangnan Huang","doi":"10.1016/j.psj.2025.105066","DOIUrl":"10.1016/j.psj.2025.105066","url":null,"abstract":"<div><div>Intramuscular fat (IMF) serves as a crucial economic indicator of meat quality. To investigate the heterogeneity of IMF composition and its regulatory mechanisms in Xingguo (XG) geese with varying IMF levels, lipidomics and transcriptomics were utilized. The analysis of lipid profiles revealed that the predominant lipids in the IMF of XG geese were glycerophospholipids (GPs), followed by glycerides (GLs). Interestingly, the low-IMF group exhibited an increase in GPs, specifically phosphatidylethanolamines (PEs) and phosphatidylcholines (PCs), while the high-IMF group showed elevated levels of triacylglycerols (TAGs). Transcriptomic analysis indicated that genes related to extracellular matrices (ECM)-receptor interactions, focal adhesion, mitogen-activated protein kinase (MAPK), and forkhead transcription factors O (FoxO) signaling pathways were upregulated in the low-IMF group. In contrast, genes involved in metabolic processes were more pronounced in the high-IMF group. A comprehensive analysis combining lipidomics and transcriptomics identified <em>CD36, fatty acid-binding protein 5 (FABP5</em>), <em>troponin I2</em> (<em>TNNI2</em>), and <em>coronin-6 isoform X1</em> (<em>CORO6</em>) as essential regulators influencing IMF accumulation in XG geese. This research emphasizes the significant lipids, genes, and signaling pathways that play roles in IMF accumulation, providing a theoretical basis for enhancing the meat quality of XG geese.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 5","pages":"Article 105066"},"PeriodicalIF":3.8,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143684604","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}