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Chicken IL-17 as a potent adjuvant enhances IBDV VP2 DNA vaccine immunogenicity and protective efficacy 鸡IL-17作为有效佐剂增强了IBDV VP2 DNA疫苗的免疫原性和保护效果
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-05-01 DOI: 10.1016/j.psj.2025.105247
Jianlou Zhang , Wenyan Li , Shanshan Huo , Xiaojing Xin , Liyue Wang
{"title":"Chicken IL-17 as a potent adjuvant enhances IBDV VP2 DNA vaccine immunogenicity and protective efficacy","authors":"Jianlou Zhang ,&nbsp;Wenyan Li ,&nbsp;Shanshan Huo ,&nbsp;Xiaojing Xin ,&nbsp;Liyue Wang","doi":"10.1016/j.psj.2025.105247","DOIUrl":"10.1016/j.psj.2025.105247","url":null,"abstract":"<div><div>Infectious bursal disease virus (IBDV) is an important immunosuppressive virus in chickens, which caused an acute and highly contagious infectious disease and resulted in considerable economic losses in the world poultry industry. Although IBDV VP2 DNA vaccine has been extensively proved only partial protection, the efficacy of DNA vaccines against IBDV can be augmented by choosing potential molecular adjuvants. To investigate whether chicken IL-17 (chIL-17) is qualified for the molecular adjuvant, we constructed chIL-17 gene vector, co-immunized chickens with chIL-17 gene vector and IBDV VP2 DNA vector, and analyzed the effect of IL-17 gene on the immunogenicity of VP2 DNA vaccine. Results showed that co-administrated chIL-17 gene and VP2 DNA vaccine significantly increased IBDV-specific serum antibody titer, and promoted lymphocyte proliferation and interference-γ (IFN-γ) production. Mechanically, chIL-17 reduced virus titer in bursa of fabricius tissue and mortality of IBDV-infected chicken. More importantly, chIL-17 gene significantly enhanced the protection induced by the VP2 gene against virulent IBDV infection.These data show that chIL-17 is a promising immunoadjuvant to facilitate humoral as well as cellular immunity in a vaccine setting against IBDV, and suggest that it should be evaluated as a new DNA vaccine adjuvant in strategies for other poultry diseases.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 8","pages":"Article 105247"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922386","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}
引用次数: 0
Feed supplementation with a mixture of C1 to C12 monoacylglycerides increases chicken resistance to Salmonella Enteritidis infection 在饲料中添加C1 - C12单酰基甘油酯混合物可提高鸡对肠炎沙门氏菌感染的抵抗力
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-05-01 DOI: 10.1016/j.psj.2025.105244
Marcela Faldynova , Jiri Volf , Daniela Karasova , Hana Prikrylova , Alena Sebkova , Adela Mullerova , Renata Kucerova , Sylvie Skalickova , Ivan Rychlik
{"title":"Feed supplementation with a mixture of C1 to C12 monoacylglycerides increases chicken resistance to Salmonella Enteritidis infection","authors":"Marcela Faldynova ,&nbsp;Jiri Volf ,&nbsp;Daniela Karasova ,&nbsp;Hana Prikrylova ,&nbsp;Alena Sebkova ,&nbsp;Adela Mullerova ,&nbsp;Renata Kucerova ,&nbsp;Sylvie Skalickova ,&nbsp;Ivan Rychlik","doi":"10.1016/j.psj.2025.105244","DOIUrl":"10.1016/j.psj.2025.105244","url":null,"abstract":"<div><div>Chickens represent one of the most important sources of animal protein for the human population. However, chickens also represent one of the most important reservoirs of <em>Salmonella</em> for humans. Measures to decrease the <em>Salmonella</em> incidence in chickens are therefore continuously sought. In this study, we tested feed supplementation with a mixture of C1 to C12 monoacylglycerides. At 0.7 and 1.5 kg per ton of feed, such supplementation significantly decreased <em>Salmonella</em> counts in the caecum but not in the liver. The chickens were infected on day 4 and the protective effect in the caecum was recorded on day 22 and 23 of life. Supplementation also decreased the inflammatory response of chickens to <em>Salmonella</em> infection determined by avidin, SAA, ExFABP, MMP7, IL1β, IL4I and MRP126 gene expression but did not affect immunoglobulin expression in the caecum. C1 to C12 monoacylglycerides can be used as a feed supplement which, if continuously provided in feed, decrease <em>Salmonella</em> counts in chickens just prior slaughter.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 7","pages":"Article 105244"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143898583","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}
引用次数: 0
Indigenous broilers in crossbreeding: impacts on meat quality and candidate gene screening 地方肉鸡杂交:对肉质的影响及候选基因筛选
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-05-01 DOI: 10.1016/j.psj.2025.105245
Jiahao Li , Zhen Zhou , Zhaofeng Zhang , Xinyi Zheng , Yu Sun , Siyu Guo , Yaohua Li , Xin Yang , Shaofen Kong , Danfeng Cai , Duo Lin , Yu Mo , Bolin Cai , Qinghua Nie
{"title":"Indigenous broilers in crossbreeding: impacts on meat quality and candidate gene screening","authors":"Jiahao Li ,&nbsp;Zhen Zhou ,&nbsp;Zhaofeng Zhang ,&nbsp;Xinyi Zheng ,&nbsp;Yu Sun ,&nbsp;Siyu Guo ,&nbsp;Yaohua Li ,&nbsp;Xin Yang ,&nbsp;Shaofen Kong ,&nbsp;Danfeng Cai ,&nbsp;Duo Lin ,&nbsp;Yu Mo ,&nbsp;Bolin Cai ,&nbsp;Qinghua Nie","doi":"10.1016/j.psj.2025.105245","DOIUrl":"10.1016/j.psj.2025.105245","url":null,"abstract":"<div><div>In the fierce market competition, high-quality chicken products often stand out. There are significant differences in meat quality between yellow and white feathered chickens. However, the underlying mechanisms that lead to the differences in their meat quality remain unclear. Single nucleotide polymorphisms (<strong>SNP</strong>) are effective molecular markers that can be utilized in marker-assisted breeding programs targeting chicken meat quality traits. Our research findings indicated that the bloodline of yellow-feathered chickens can significantly alter the meat quality traits of chickens, especially in terms of the shear force and meat color of the breast muscle. Additionally, through metabolomic, lipidomic, and RNA-seq, we identified differentially expressed metabolites, lipids, and genes that influence meat quality. Furthermore, we discovered a key gene, the purinergic receptor P2 × 5 (<strong><em>P2RX5</em></strong>), which significantly contributes to meat quality traits. We identified five SNP sites within the <em>P2RX5</em> gene and conducted genotyping. Three of these SNP sites were found to be significantly associated with meat quality traits in chickens, such as the a*value and cooking loss. These results indicated that our findings provide potential molecular markers for changing meat quality traits in chickens. However, due to our small sample size and the absence of testing on males, the generalizability of the results may be insufficient.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 7","pages":"Article 105245"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143922367","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}
引用次数: 0
Estimation of heterosis, combining ability and reciprocal effects for body weight in four genetic groups of chicken from a full diallel cross 全双列杂交鸡4个遗传群体重的杂种优势、配合力及互反效应评价
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-05-01 DOI: 10.1016/j.psj.2025.105232
Philimon Teshome , Gebeyehu Goshu , Wondmeneh Esatu , Tadelle Dessie
{"title":"Estimation of heterosis, combining ability and reciprocal effects for body weight in four genetic groups of chicken from a full diallel cross","authors":"Philimon Teshome ,&nbsp;Gebeyehu Goshu ,&nbsp;Wondmeneh Esatu ,&nbsp;Tadelle Dessie","doi":"10.1016/j.psj.2025.105232","DOIUrl":"10.1016/j.psj.2025.105232","url":null,"abstract":"<div><div>This study aims to estimate the heterotic effects (<strong>H<sup>e</sup></strong>), general combining abilities (<strong>GCA</strong>), specific combining abilities (<strong>SCA</strong>), and reciprocal effects (<strong>RE</strong>) for body weight (<strong>BW</strong>) in a 4 × 4 full diallel cross involving Improved Horro (<strong>H</strong>), commercial Sasso (<strong>S</strong>), Potchefstroom Koekoek (<strong>K</strong>), and Dz-white feathered (<strong>D</strong>) chickens. A total of 960 purebred and F1 hybrid chickens were used in this study, comprising sixteen genetic groups. The birds were reared from hatch to 14 weeks (<strong>wk</strong>) of age in a deep litter floor house partitioned with wire mesh. Chickens of different genotypes were randomly assigned to three pens per genetic group in a completely randomized design. BW measurements were recorded at hatch, 2, 4, 6, 8, 10, 12, and 14 wk of age. Heterosis estimates indicated that crosses between S males with K and D females (including their reciprocal crosses) exhibited the strongest H<sup>e</sup> for BW from early to late ages. In contrast, crosses between H males and K females (and their reciprocals) showed positive but low H<sup>e</sup>, which increased slightly at later ages. Meanwhile, the cross between K males and D females displayed negative H<sup>e</sup> across all ages, whereas its reciprocal cross had low but positive H<sup>e</sup>. GCA effects were high (<em>p</em> &lt; 0.0001) among purebreds, which shows the importance of additive gene effects on BW. SCA highly (<em>p</em> &lt; 0.0001) influenced BW at hatch, wk 2, 4, and 10, highlighting the role of non-additive genetic variance at the early age of BW inheritance. RE was generally non-significant except at hatch (<em>p</em> = 0.002), wk 2 (<em>p</em> &lt; 0.0001), and wk 10 (<em>p</em> = 0.036), indicating potential maternal or paternal contributions during these early developmental stages. In conclusion, the results indicated that breeding strategies should prioritize selecting parents with superior GCA to ensure consistent and predictable gains in BW. Furthermore, developing a broiler line from S sires crossed with the K and D dams and H sires with S dam lines should also be considered.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 8","pages":"Article 105232"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143935562","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}
引用次数: 0
The influence of genetic strain on fear and anxiety responses of laying hens housed in a cage-free environment 遗传品系对无笼环境下蛋鸡恐惧和焦虑反应的影响
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-05-01 DOI: 10.1016/j.psj.2025.105201
Bhavisha P. Gulabrai, Aaron S. Kiess, Kenneth E. Anderson, Allison N. Pullin
{"title":"The influence of genetic strain on fear and anxiety responses of laying hens housed in a cage-free environment","authors":"Bhavisha P. Gulabrai,&nbsp;Aaron S. Kiess,&nbsp;Kenneth E. Anderson,&nbsp;Allison N. Pullin","doi":"10.1016/j.psj.2025.105201","DOIUrl":"10.1016/j.psj.2025.105201","url":null,"abstract":"<div><div>Cage-free environments provide more behavioral opportunities for hens than cages, but fear responses in such open housing can lead to injuries and challenging human-animal interactions. This study evaluated the impact of genetic strain on fear and anxiety responses in two brown and one white genetic strain of laying hens: Hy-Line Brown (HB), Bovan Brown (BB), and H&amp;N White (HN). Hens were assessed at the start of lay and peak lay through the inversion and attention bias tests, along with thermal imaging and core body temperature measurements to assess stress-induced hyperthermia. During the inversion test, HB hens performed significantly more wing flaps than other strains (p=0.012), while BB hens exhibited more vocalizations than HN hens (p=0.0041). Thermal imaging revealed that at the start of lay, HB and HN hens had higher maximum comb temperatures than BB hens (p&lt;0.0001), but HB hens had lower temperatures at peak lay (p=0.027). BB and HN hens had higher core body temperatures at 4- and 5-minutes post-inversion (p&lt;0.0001). In the attention bias test, HB and BB hens were more likely to resume eating and showed increased head bobbing as they aged, whereas HN hens were less likely to resume eating but maintained high head bobbing (p=0.017; p=0.00056). BB hens had the lowest average eye and maximum comb temperatures 3.5 to 4.5 min post-startle at the start of lay (p&lt;0.05), white HN hens had the highest average eye and comb temperatures (p&lt;0.0001) and higher average eye temperatures than BB at peak lay (p=0.026). Finally, HN hens had higher core body temperatures than HB hens at both the start of lay and peak lay (p=0.041; p=0.046). These results indicate that brown and white strains differ in their responses to fear and anxiety, with brown strains being more behaviorally responsive and white strains showing greater physiological stress. These strain-specific coping mechanisms provide insight into how hens may react to stressors in cage-free environments, aiding in strain selection for producers.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 7","pages":"Article 105201"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143895072","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}
引用次数: 0
Corrigendum to “Effects of chronic exposure of specific water quality parameters in poultry drinking water on dietary amino acid digestibility and early broiler performance”[Poultry Science, Volume 104/Issue 2/February 2025, 104835] “长期暴露于家禽饮用水中特定水质参数对日粮氨基酸消化率和早期肉鸡生产性能的影响”的更正[家禽科学,第104卷/第2期/ 2025年2月,104835]
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-05-01 DOI: 10.1016/j.psj.2025.105154
Rabin Raut , Biswajit Kumar Biswas , Thyneice Taylor-Bowden , Agnes Kilonzo-Nthenge , Bharat Pokharel , Tom Tabler , Samuel N. Nahashon , Pramir Maharjan
{"title":"Corrigendum to “Effects of chronic exposure of specific water quality parameters in poultry drinking water on dietary amino acid digestibility and early broiler performance”[Poultry Science, Volume 104/Issue 2/February 2025, 104835]","authors":"Rabin Raut ,&nbsp;Biswajit Kumar Biswas ,&nbsp;Thyneice Taylor-Bowden ,&nbsp;Agnes Kilonzo-Nthenge ,&nbsp;Bharat Pokharel ,&nbsp;Tom Tabler ,&nbsp;Samuel N. Nahashon ,&nbsp;Pramir Maharjan","doi":"10.1016/j.psj.2025.105154","DOIUrl":"10.1016/j.psj.2025.105154","url":null,"abstract":"","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 7","pages":"Article 105154"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143892079","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}
引用次数: 0
Fecal microbiota transplantation improves growth performance of chickens by increasing the intestinal Lactobacillus and glutamine 粪便菌群移植通过增加肠道乳酸菌和谷氨酰胺来改善鸡的生长性能
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-05-01 DOI: 10.1016/j.psj.2025.105243
Yibin Xu, Kuan Chen, Yulin Huang, Yifeng Yan, Weiqin Zhang, Jinghong Tian, Dexiang Zhang, Manqing Liu, Qinghua Nie
{"title":"Fecal microbiota transplantation improves growth performance of chickens by increasing the intestinal Lactobacillus and glutamine","authors":"Yibin Xu,&nbsp;Kuan Chen,&nbsp;Yulin Huang,&nbsp;Yifeng Yan,&nbsp;Weiqin Zhang,&nbsp;Jinghong Tian,&nbsp;Dexiang Zhang,&nbsp;Manqing Liu,&nbsp;Qinghua Nie","doi":"10.1016/j.psj.2025.105243","DOIUrl":"10.1016/j.psj.2025.105243","url":null,"abstract":"<div><div>Chicken meat is an essential source of high-quality animal protein, mainly derived from slow-growth chicken (SC) and fast-growth chicken (FC) breeds. Skeletal muscle is a highly adaptable tissue that is influenced by breed differences and the gut microbiome. Investigation whether remodeling the gut microbiota by fecal microbiota transplantation (FMT) improves chicken growth is an interesting question. We compared the gut microbial composition of eight breeds of SC (Xinghua chicken, Yangshan chicken, Zhongshan Salan chicken, Qingyuan Partridge chicken, Huiyang Bearded chicken and Huaixiang chicken) and FC (Xiaobai chicken and White rock chicken). Fecal microbiota from donor FC (Xiaobai chickens) with superior growth performance were transferred to SC (Xinghua chickens). The effects of FMT on growth performance, metabolic profile and gut microbiome of recipient chickens were evaluated. We found significant differences in gut microbial composition, with a higher abundance of Bacteroidetes in SC and a higher abundance of Firmicutes in FC. Xiaobai chickens with better growth performance and abundant <em>Lactobacillus</em>, and FMT significantly enhanced growth performance, the expression of mRNA (<em>MYOG, MYF5, MYF6</em> and <em>IGF1</em>) related to breast and leg muscle development and improved the villus/crypt ratio in the jejunum. FMT altered the microbiota in the duodenum, jejunum, and ileum, increased <em>Lactobacillus</em> abundance, decreased the relative mRNA expression of the intestinal inflammatory factors (<em>IL-1β, IL-6</em> and <em>TNF-α</em>), increased glutamine levels in the host, including in muscle tissues and intestinal contents, and Spearman correlation analysis indicated that the relative abundance of <em>Lactobacillus</em> was positively correlated with glutamine levels. Additionally, antibiotic treatment reduces glutamine levels in the intestines, blood, and muscle tissues of chickens. Glutamine can increase the expression of <em>cyclinD1, cyclinD2, cyclinB2, MYOG, MYF5, MYF6</em> and <em>IGF1</em> mRNA to promote chicken myoblasts proliferation and differentiation. This study found that the SC and FC gut microbes were significantly different, and the FC chicken gut microbes were able to reshape the FC gut microbiota through FMT, i.e., higher <em>Lactobacillus</em>, promoted chicken myoblasts proliferation and differentiation and growth performance by increasing glutamine levels.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 8","pages":"Article 105243"},"PeriodicalIF":3.8,"publicationDate":"2025-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144089002","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}
引用次数: 0
Effects of dietary L-leucine supplementation on performance, egg quality, serum biochemical parameters, antibody titer, and egg cholesterol content of laying hens 饲粮添加l -亮氨酸对蛋鸡生产性能、蛋品质、血清生化指标、抗体效价和蛋胆固醇含量的影响
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-04-30 DOI: 10.1016/j.psj.2025.105237
Ali Asghar Motallebi , Mohammad Hossein Shahir , Mohammad Hossein Nemati
{"title":"Effects of dietary L-leucine supplementation on performance, egg quality, serum biochemical parameters, antibody titer, and egg cholesterol content of laying hens","authors":"Ali Asghar Motallebi ,&nbsp;Mohammad Hossein Shahir ,&nbsp;Mohammad Hossein Nemati","doi":"10.1016/j.psj.2025.105237","DOIUrl":"10.1016/j.psj.2025.105237","url":null,"abstract":"<div><div>This experiment was performed to investigate the effects of leucine (<strong>Leu</strong>) supplementation on performance, egg quality, egg cholesterol content, antibody titer, and serum biochemistry in laying hens. A total of three hundred commercial laying hens (33 to 41 wk, LSL strain) were used in a completely randomized design with six treatments and five replicates of 10 birds each. The six dietary treatments consisted of graded levels of L-Leu supplementation (0, 0.1, 0.2, 0.3, 0.4, and 0.5 %) added to a basal diet containing 1.08% digestible leucine. The performance of laying hens (egg production, egg weight, egg mass, feed intake, and feed conversion ratio) was not significantly affected by dietary L-Leu supplementation. Egg quality traits (shape index, relative weights of shell, albumen, yolk, and shell thickness) were significantly (<em>P</em> &lt; 0.05) affected by the Leu levels, with the highest quality observed at 0.1% L-Leu supplementation. Egg cholesterol content was significantly (<em>P</em> &lt; 0.05) lower in the L-Leu supplemented groups compared to the control group. Serum antibody titers against Newcastle disease (ND) and avian influenza (AI) viruses were significantly increased (<em>P</em> &lt; 0.05) by dietary L-Leu supplementation. At higher levels of L-Leu supplementation (0.3 to 0.5%), serum albumin, calcium, and total protein decreased (<em>P</em> &lt; 0.05), while uric acid and triglyceride concentrations increased (<em>P</em> &lt; 0.05). In conclusion, dietary supplementation of L-Leu at the level of 0.1% improves egg quality traits and immunity in laying hens without compromising their performance.</div></div>","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 7","pages":"Article 105237"},"PeriodicalIF":3.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143923588","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}
引用次数: 0
Commentary: enterococcal spondylitis, a complex threat 评论:肠球菌性脊柱炎,一个复杂的威胁
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-04-30 DOI: 10.1016/j.psj.2025.105226
Matthew K. Jones , M. Mitsu Suyemoto
{"title":"Commentary: enterococcal spondylitis, a complex threat","authors":"Matthew K. Jones ,&nbsp;M. Mitsu Suyemoto","doi":"10.1016/j.psj.2025.105226","DOIUrl":"10.1016/j.psj.2025.105226","url":null,"abstract":"","PeriodicalId":20459,"journal":{"name":"Poultry Science","volume":"104 8","pages":"Article 105226"},"PeriodicalIF":3.8,"publicationDate":"2025-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144088834","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}
引用次数: 0
Improvement of semen quality in Longyou Partridge Chicken by dietary N-acetyl-L-glutamic acid and its mechanism study n -乙酰- l-谷氨酸提高龙游鹧鸪鸡精液质量及其机理研究
IF 3.8 1区 农林科学
Poultry Science Pub Date : 2025-04-30 DOI: 10.1016/j.psj.2025.105234
Xue Du , Xiaopeng Tong , Xintong Qian , Yuanning Zhang , Duoxi Li , Xiaojun Liu , Xianzhong Zheng , Ayong Zhao
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