Poultry Science最新文献

{"title":"A national study confirms a low occurrence of antimicrobial resistance amongst Escherichia coli isolates from the caecae of Australian meat chickens.","authors":"Rebecca Abraham, David Jordan, Marin Milotic, David J Hampson, Anthony Pavic, Sue Sharpe, Kylie Hewson, Shewli Mukerji, Kittitat Lugsomya, Sam Abraham","doi":"10.1016/j.psj.2026.106456","DOIUrl":"10.1016/j.psj.2026.106456","url":null,"abstract":"<p><p>In meat chickens, Escherichia coli has been widely used as an indicator of overall carriage of antimicrobial resistance (AMR), with low levels of AMR found in Australia's 2016 national survey. This follow-up survey applied a high-throughput robotic antimicrobial-susceptibility platform to increase the probability of detecting rare but clinically significant forms of resistance, obtain higher-resolution prevalence estimates and assess possible temporal changes in amounts and types of resistance. Pooled caecal samples were collected at slaughter from 20 processing plants covering > 90% of Australian national chicken meat production. E. coli colonies were tested by broth micro-dilution against 14 antimicrobials and whole-genome sequencing was performed on all isolates that were clinically resistant to ciprofloxacin. Among 2,950 E. coli isolates, 56.8% were wild-type to every drug and all were susceptible to colistin and amikacin. Non-wild-type (NWT) rates were highest for tetracycline (23.3%, 95% CI 21.7-24.8%) and ampicillin (11.7%, 95% CI 10.5-12.9%); NWT prevalence for ciprofloxacin was 3.3% (2.6-4.0%, 95% CI 2.6-4.0%) but only 1.1% were resistant at the clinical breakpoint. Multi-class resistance was rare (2.9%). The genomes of 32 ciprofloxacin-resistant isolates were sequenced: 25 (78%) carried canonical gyrA/parC mutations and mainly clustered in two lineages, ST354 (n = 16) and ST752 (n = 9). When compared to contemporary European Union surveillance data, E. coli colonizing Australian meat-chickens continue to exhibit relatively low levels of resistance to first line and critically important antimicrobials. The stable but detectable presence of fluoroquinolone-resistant ST354 and ST752 underscores the need for regular large-scale, genomics-enabled surveillance.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 5","pages":"106456"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12955623/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147317659","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":"Effect of dietary Bacillus subtilis on basic chemical composition, free amino acids, fatty acids and volatile organic compounds in broiler meat.","authors":"Hairong Wang, Jiqiang Li, Rongrong Liang, Yunge Liu, Zhigang Song, Johan Buyse, Lixian Zhu, Huixin Zuo","doi":"10.1016/j.psj.2026.106673","DOIUrl":"10.1016/j.psj.2026.106673","url":null,"abstract":"<p><p>The aim of this study was to investigate the effect of dietary supplementation with Bacillus subtilis (BS, DSM32324-32325) on the nutritional quality of broiler meat, with emphasis on the content and profile of various chemical components. A total of 144 Arbor Acres male broilers were divided into three dietary treatment groups (CON, control; LBS, 300 mg/kg BS; HBS, 500 mg/kg BS) and fed for 35 days. The results showed that the LBS treatment significantly increased the crude protein content of broiler meat. Dietary BS supplementation increased the content of flavor amino acids (such as serine and alanine) and decreased the content of bitter amino acids such as methionine and isoleucine. Moreover, BS addition reduced the content of saturated fatty acids and increased the content of polyunsaturated fatty acids in broiler meat. Meanwhile, the content of important volatile organic compounds, particularly hexanal, was significantly increased. Finally, tandem mass tags (TMT)-based quantitative proteomics revealed that dietary supplementation with LBS (300 mg/kg BS) favorably affected lipid and amino acid metabolism in broiler meat, and identified key metabolic pathways such as the peroxisome proliferator-activated receptor (PPAR) signaling pathway, amino acid metabolism, and fatty acid degradation. In conclusion, these findings demonstrated that BS supplementation enhanced broiler meat quality by modulating nutrient metabolism pathways.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 5","pages":"106673"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12945636/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147271733","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":"Strategic role of poultry production sciences in shaping the future of global food security and strengthen sustainability.","authors":"Farid S Nassar","doi":"10.1016/j.psj.2026.106617","DOIUrl":"10.1016/j.psj.2026.106617","url":null,"abstract":"<p><p>Poultry production sciences play a strategic role in enhancing food security and meeting the growing global demand for animal protein, while also contributing to sustainability. Understanding and leveraging consumer behaviors enables the development of flexible and sustainable production systems capable of effectively adapting to social changes and future market needs. This study aims to explore the strategic role of poultry production sciences in shaping the future of global food security and achieving sustainable development. A descriptive methodology was adopted, based on a systematic review of peer-reviewed literature, international reports from relevant organizations, and an analysis of global case studies. Studies were included if they examined the role of poultry production in meeting consumer demands and promoting sustainability. Studies not related to higher education or production contexts, or lacking methodological rigor or empirical evidence, were excluded. The findings indicate that integrating scientific research, applied education, and insights into consumer behavior enables poultry science programs to align graduates' skills with market demands, optimize production strategies, and enhance innovation, resilience, and sustainability across the sector. Additionally, Poultry science programs are a fundamental driver of scientific and technological advancement, linking research outcomes with market trends and consumer behavior, developing specialized human capital, and supporting evidence-based policymaking to enhance the resilience of global food systems. The study also emphasizes the importance of understanding consumer behavior as a strategic tool that enables producers, decision-makers, and agricultural policymakers to translate these insights into innovative and sustainable production practices, thereby boosting competitiveness, meeting future demand, and maintaining a balance between profitability, quality, and social and environmental responsibility. Moreover, the study recommends fostering collaboration among policymakers, producers, and academic institutions through joint initiatives and measurable monitoring systems to develop forward-looking strategies and awareness programs, thereby embedding resilience and sustainability as core pillars for the long-term advancement of the global poultry industry.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 5","pages":"106617"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12925534/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146213891","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: Effect of sample type, sperm concentration, and storage conditions on malondialdehyde levels in rooster semen.","authors":"Melada Chaithongsri, Kitiya Pachamon, Thirawat Koedkanmark, Wuttigrai Boonkum, Monchai Duangjinda, Vibuntita Chankitisakul","doi":"10.1016/j.psj.2025.106054","DOIUrl":"10.1016/j.psj.2025.106054","url":null,"abstract":"<p><p>Malondialdehyde (MDA) is a widely used biomarker of lipid peroxidation and oxidative stress in avian semen. However, inconsistencies in sample fraction, sperm concentration, and storage conditions complicate comparisons across studies. This study systematically evaluated how these factors influence MDA in rooster semen. In Experiment 1, pooled semen was diluted to 100, 150, 200, and 250 × 10⁶ spz/mL and fractionated into whole semen, seminal plasma, and sperm pellet before MDA quantification. In Experiment 2, the three fractions were stored at 4°C or -20°C and analyzed on Days 1, 3, and 7 (Day 0 baseline). In Experiment 1, both sperm concentration and sample fraction affected MDA (P < 0.05), with the highest values in sperm pellets, moderate in whole semen, and the lowest in seminal plasma. In Experiment 2, whole semen exhibited time-dependent increases at both temperatures, whereas seminal plasma and sperm pellets were comparatively stable. These findings indicate that sample origin and sperm density materially influence MDA readouts, and that storage particularly impacts whole semen. We recommend standardizing semen fraction and sperm concentration, and reporting storage conditions, to improve reproducibility of oxidative stress assessments in poultry reproduction.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 5","pages":"106054"},"PeriodicalIF":4.2,"publicationDate":"2026-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12925491/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146202493","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":"Corrigendum to \"Determination and prediction of standardized ileal amino acid digestibility of wheat for pullets during the brooding and growing phases\" [Poult. Sci. 2026 Mar 2;105(6):106726].","authors":"Lin Zhang","doi":"10.1016/j.psj.2026.106921","DOIUrl":"10.1016/j.psj.2026.106921","url":null,"abstract":"","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 7","pages":"106921"},"PeriodicalIF":4.2,"publicationDate":"2026-04-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13136716/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147819831","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":"Corrigendum to \"Ryegrass improves carcass trait of meat geese effects of dietary ryegrass supplementation on growth performance, carcass traits, and gut microbiota in meat geese\" [Poultry Science, Volume 105, 2026, Article 106035].","authors":"Zhengkun Chen, Tong Liu, Linghong Sun, Yanping Li","doi":"10.1016/j.psj.2026.106739","DOIUrl":"https://doi.org/10.1016/j.psj.2026.106739","url":null,"abstract":"","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":" ","pages":"106739"},"PeriodicalIF":4.2,"publicationDate":"2026-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147779268","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":"Modulation of cecal microbiota and metabolite profiles by Zanthoxylum bungeanum seeds enhances antioxidant capacity and meat quality in Pekin ducks.","authors":"Tao Li, Peng Wang, Zhuo Zhi, Qinli Li, Tong Guo, Jie Zhou, Huiya Zhang, Jiqiao Zhang, Jianqin Zhang","doi":"10.1016/j.psj.2026.107010","DOIUrl":"10.1016/j.psj.2026.107010","url":null,"abstract":"<p><p>Zanthoxylum bungeanum seeds (ZBS) are a bioactive-rich byproduct with potential as antibiotic alternatives, yet their systemic effects on waterfowl remain unclear. This study investigated the effects of dietary ZBS supplementation on growth performance, physiological status, meat quality, and the microbiome-metabolome profile in Pekin ducks. A total of 240 ducks (14-day-old) were assigned to four treatments containing 0% (CG), 1.5% (LG), 3.0% (MG), or 4.5% (HG) ZBS for 21 days. Trend analysis revealed a significant quadratic dose-response for growth performance (P< 0.05), identifying 1.5% as the optimal inclusion level for maximizing body weight. Physiologically, ZBS supplementation enhanced antioxidant capacity and liver function by linearly upregulating serum SOD, CAT, and GSH-Px activities while significantly reducing MDA, ALT, AST, and triglyceride levels (P< 0.05). Regarding meat quality, ZBS linearly increased breast meat redness (a*) and facilitated the linear deposition of glutamic acid and alpha-linolenic acid, mirroring the ZBS nutrient profile (P < 0.05). Consequently, this deposition optimized key nutritional indices, characterized by a linear reduction in the n-6/n-3 polyunsaturated fatty acid ratio (P< 0.01) and an improved BCAA/AAA ratio. Mechanistically, 16S rRNA sequencing indicated a beneficial filtering effect where ZBS reduced alpha diversity by suppressing inflammation-associated genera (Desulfovibrio, Fusobacterium) while enriching beneficial fermenters (Faecalibacterium, Barnesiella). Metabolomics further identified upregulated antioxidant and immunomodulatory metabolites, such as orsellinic acid and purine analogs, which correlated with improved host health. Collectively, ZBS functions as an ecological modulator that promotes liver health and meat nutritional value in a linear manner, while optimizing growth performance quadratically, with 1.5% identified as the optimal dosage.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 7","pages":"107010"},"PeriodicalIF":4.2,"publicationDate":"2026-04-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13141759/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147819884","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":"Comparative renal physiology and excretory adaptations in ruminants and poultry: Implications for nutrition, health, and environmental management.","authors":"Dawudie Gobezie","doi":"10.1016/j.psj.2026.107007","DOIUrl":"10.1016/j.psj.2026.107007","url":null,"abstract":"<p><p>The urinary systems of ruminants and poultry represent an evolutionary adaptation to distinct ecological niches, digestive strategies, and water conservation needs. This critical review employs a systematic approach to compare these systems, analyzing their anatomical, physiological, and functional divergences with emphasis on contemporary agricultural challenges. Ruminants, as ureotelic mammals, possess a urinary system where nitrogen excretion is dominated by urea, heavily influenced by rumen microbial metabolism and the urea nitrogen recycling loop. This physiology underpins both the use of urinary purine derivatives as markers for microbial protein synthesis and the significant environmental burden of nitrous oxide (N₂O) emissions from urine patches. In contrast, the avian uricotelic system, characterized by a mixed population of loopless (reptilian type) and looped (mammalian type) nephrons and a cloacal terminus, prioritizes water conservation and eggshell calcification but presents unique pathologies like gout. By synthesizing scattered literature, this review provides a novel, integrated framework linking core physiology to applied outcomes in nutrition, disease management, and environmental sustainability. This review identified critical knowledge gaps, particularly in avian renal microanatomy and the precise modeling of dietary interventions on nitrogen loss and proposes specific, actionable research directions to advance sustainable animal production.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 7","pages":"107007"},"PeriodicalIF":4.2,"publicationDate":"2026-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13136738/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147819752","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":"Bacillus-based probiotics and fermented products as alternatives to antibiotic growth promoters in poultry: Current perspectives.","authors":"Yu-Hsiang Yu","doi":"10.1016/j.psj.2026.106989","DOIUrl":"10.1016/j.psj.2026.106989","url":null,"abstract":"<p><p>Over the years, antibiotic growth promoters (AGPs) have been prophylactically added to the diet of poultry to enhance growth performance and production traits. Mechanisms of AGP action are still poorly understood. Several hypotheses have been proposed to explain the action of AGPs, including reduction in the subclinical intestinal infections, inhibition of toxin releases by intestinal bacteria, and improvement in the absorption of nutrients. However, overuse of AGPs in poultry production may contribute to the emergence of antibiotic resistance. Therefore, many countries have banned the use of AGPs in animal production, driving scientists to explore suitable and effective alternatives to AGPs for commercial use. Probiotics are a sustainable alternative to AGPs, and Bacillus species have been broadly examined for their ability to prevent pathogenic infections and enhance the growth performance of poultry. Currently, liquid-state fermentation is the main strategy used for the production of Bacillus species. However, because of the cost, sustainability, and feasibility concerns associated with this strategy, solid-state fermentation has been attracting increasing attention. In addition to probiotics, Bacillus-based solid-state-fermented products contain Bacillus-derived secondary metabolites with antibacterial activity. Because the main components of Bacillus-based products produced by liquid-state and solid-state fermentation are different, the performance-promoting mechanism of these products will also be different. This review discusses the latest advancements in the application of Bacillus as an alternative to AGPs for promoting gut health and growth performance in poultry. Feasibility assessment of Bacillus-based solid-state-fermented products as AGP alternative and their mechanism of action is also discussed.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 7","pages":"106989"},"PeriodicalIF":4.2,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13136734/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147819714","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 comprehensive study on enrofloxacin residue depletion in five chicken breeds.","authors":"Dawei Chen, Cuiyue Wang, Yinyin Liu, Lina Ma, Jing Zhang, Yushi Gao, Xiujun Tang","doi":"10.1016/j.psj.2026.107002","DOIUrl":"10.1016/j.psj.2026.107002","url":null,"abstract":"<p><p>The widespread use of enrofloxacin (ENR) in poultry farming raises public-health concerns due to residue persistence, particularly in indigenous chickens where standard withdrawal times (WTs) may be inadequate. This study characterized depletion kinetics of ENR and its metabolite ciprofloxacin (CIP) across five commercially relevant breeds in China. We developed and validated a sensitive LC-MS/MS method for simultaneous quantification of ENR and CIP in four edible tissues. After oral administration at 10 mg/kg body weight (bw) once daily for 5 days, tissues from AA broilers, WOD168, Jinling Partridge, Xueshan, and Jinling black-bone chickens were sampled at six time points through day 14. Results showed pronounced breed-dependent differences in elimination. White-feathered lines (AA and WOD168) cleared residues rapidly, with concentrations at or below maximum residue limits (MRLs) within 3 days. In contrast, yellow-feathered breeds showed markedly prolonged persistence, especially in skin with fat. Jinling black-bone chickens exhibited the most extreme retention, with residues detectable in all tissues at day 14 and skin with fat reaching 898.96 μg/kg, a value nearly nine-fold the MRL. WTs were estimated with WT 1.4 using the EMA 95/95 approach under Chinese MRLs, with residues expressed as ENR plus CIP. Overall WTs were 2.30 to 2.64 days for white-feathered lines and 8.16 to 39.74 days for yellow-feathered breeds, with skin with fat consistently the limiting tissue. These findings provide a scientific basis for breed-specific withdrawal guidance and identify skin with fat as a critical monitoring target to ensure poultry food safety.</p>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"105 7","pages":"107002"},"PeriodicalIF":4.2,"publicationDate":"2026-04-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC13141706/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147779319","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}