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Proteo-transcriptomic profiles reveal key regulatory pathways and functions of LDHA in the ovulation of domestic chickens(Gallus gallus)

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Journal of animal Science and Biotechnology 2024年第4期15卷 1449-1465页

作者： Ruixue Nie Wenhui Zhang Haoyu Tian Junying Li Yao Ling Bo Zhang Hao Zhang Changxin Wu State Key laboratory of animal Biotech Breeding Beijing Key Laboratory for Animal Genetic ImprovementCollege of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China

Background In poultry, the smooth transition of follicles from the preovulatory-to-postovulatory phase impacts egg production in hens and can benefit the poultry industry. However, the regulatory mechanism underlying follicular ovulation in avians is a complex biological process that remains *** Critical biochemical events involved in ovulation in domestic chickens(Gallus gallus) were evaluated by transcriptomics, proteomics, and in vitro assays. Comparative transcriptome analyses of the largest preovulatory follicle(F1) and postovulatory follicle(POF1) in continuous laying(CL) and intermittent laying(IL) chickens indicated the greatest difference between CL_F1 and IL_F1, with 950 differentially expressed genes(DEGs), and the smallest difference between CL_POF1 and IL_POF1, with 14 DEGs. Additionally, data-independent acquisition proteomics revealed 252 differentially abundant proteins between CL_F1 and IL_F1. Perivitelline membrane synthesis, steroid biosynthesis, lysosomes, and oxidative phosphorylation were identified as pivotal pathways contributing to ovulation regulation. In particular, the regulation of zona pellucida sperm-binding protein 3, plasminogen activator, cathepsin A, and lactate dehydrogenase A(LDHA) was shown to be essential for ovulation. Furthermore, the inhibition of LDHA decreased cell viability and promoted apoptosis of ovarian follicles in *** This study reveals several important biochemical events involved in the process of ovulation, as well as crucial role of LDHA. These findings improve our understanding of ovulation and its regulatory mechanisms in avian species.

关键词： Chicken Data-independent acquisition proteomics LDHA Ovulation Regulatory mechanism Transcriptome

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Molybdenum and cadmium co-induce necroptosis through Th1/Th2 imbalance-mediated endoplasmic reticulum stress in duck ovaries

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Journal of Environmental Sciences 2024年第8期142卷 92-102页

作者： Ting Cui Xueyan Dai Huiling Guo Dianyun Wang Bingyan Huang Wenjing Pu Xuesheng Chu Caiying Zhang Jiangxi Provincial Key laboratory for animal Health Institute of Animal Population HealthCollege of Animal Science and TechnologyJiangxi Agricultural UniversityNanchang 330045China

Cadmium(Cd)and excess molybdenum(Mo)pose serious threats to animal *** previous study has determined that Cd and/or Mo exposure can cause ovarian damage of ducks,while the specific mechanism is still *** further investigate the toxic mechanism of Cd and Mo co-exposure in the ovary,forty 8-day-old female ducks were randomly allocated into four groups for 16 weeks,and the doses of Cd and Mo in basic diet per kg were as follows:control group,Mo group(100 mg Mo),Cd group(4 mg Cd),and Mo+Cd group(100 mg Mo+4 mg Cd).Cadmium sulfate 8/3-hydrate(CdSO_(4)·8/3H_(2)O)and hexaammonium molybdate((NH_(4))_(6)Mo_(7)O_(24)·4H_(2)O)were the origins of Cd and Mo,*** the 16th week of the experiment,all ovary tissues were collected for the detection of related *** data indicated that Mo and/or Cd induced trace element disorders and Th1/Th2 balance to divert toward Th1 in the ovary,which activated endoplasmic reticulum(ER)stress and then provoked necroptosis through triggering RIPK1/RIPK3/MLKL signaling pathway,and eventually caused ovarian pathological injuries and necroptosis *** alterations of above indicators were most apparent in the joint *** all,this research illustrates that Mo and/or Cd exposure can initiate necroptosis through Th1/Th2 imbalance-modulated ER stress in duck ovaries,and Mo and Cd combined exposure aggravates ovarian *** research explores the molecular mechanism of necroptosis caused by Mo and/or Cd,which reveals that ER stress attenuation may be a therapeutic target to alleviate necroptosis.

关键词： Molybdenum Cadmium Th1/Th2 imbalance Endoplasmic reticulum stress Necroptosis Ovary

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Impact of dietary supplementation with β-alanine on the rumen microbial crude protein supply, nutrient digestibility and nitrogen retention in beef steers elucidated through sequencing the rumen bacterial community

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animal Nutrition 2024年第2期17卷 418-427页

作者： Jinming Hu Shuo Zhang Mengmeng Li Guangyong Zhao State Key laboratory of animal Nutrition College of Animal Science and Technology China Agricultural University

This study investigated the effects of β-alanine(β-Ala) on rumen fermentation, nutrient digestibility,nitrogen(N) metabolism, plasma biochemical parameters, and rumen bacterial communities in beef steers. Six steers with initial liveweight of 252.8 ± 5.2 kg and 3 treatments of supplementing with 0, 30,or 60 g β-Ala per day to basal diet were allocated in a replicated 3 × 3 Latin square design. Each experimental period was 20 d, of which the first 15 d were for adaptation and the subsequent 5 d were for sampling. The results showed that β-Ala linearly increased the ruminal concentration of microbial crude protein(MCP)(P = 0.005), but it did not affect the ruminal concentrations of ammonia N and total volatile fatty acids(P > 0.10). β-Ala also linearly increased the dry matter(DM)(P = 0.009), organic matter(OM)(P = 0.017) and crude protein(CP)(P = 0.043) digestibility, tended to decrease the acid detergent fiber digestibility(P = 0.077), but it did not affect the neutral detergent fiber digestibility(P = 0.641). β-Ala quadratically increased the relative abundance of ruminal Bacteroidota(P = 0.021) at the phylum level, and increased Prevotella(P = 0.028) and Prevotellaceae＿UCG-003(P = 0.014), and decreased the relative abundance of NK4A214＿group(P = 0.009) at the genus level. Feeding steers with β-Ala linearly increased the urinary N(P = 0.006), urea excretions(P = 0.002) and the N retention(P = 0.004), but it did not affect the N utilization efficiency(P = 0.120). β-Ala quadratically increased the plasma concentration of the total antioxidant capacity(P = 0.011) and linearly increased the plasma concentration of insulin-like growth factor-1(P < 0.001). In summary, dietary supplementation with β-Ala improved the rumen MCP supply and increased the digestibility of DM, OM, CP and the N *** research is necessary to verify the ruminal degradability of β-Ala and to investigate the mechanism of the impact of absorbed β-Ala on the anti-oxidative ability in stee

关键词： β-Alanine Cattle Nitrogen metabolism Rumen bacterial community Rumen fermentation

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Coated sodium butyrate ameliorates high‑energy and low‑protein diet induced hepatic dysfunction via modulating mitochondrial dynamics, autophagy and apoptosis in laying hens

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Journal of animal Science and Biotechnology 2024年第3期15卷 1190-1206页

作者： Sasa Miao Tianming Mu Ru Li Yan Li Wenyan Zhao Jiankui Li Xinyang Dong Xiaoting Zou Key laboratory of animal Feed and Nutrition of Zhejiang Province Key Laboratory of Animal Nutrition and Feed Science(Eastern of China)Ministry of Agriculture and Rural AffairsThe Key Laboratory of Molecular Animal NutritionMinistry of EducationCollege of Animal SciencesZhejiang UniversityHangzhou 310058China.

Background Fatty liver hemorrhagic syndrome(FLHS),a fatty liver disease in laying hens,poses a grave threat to the layer industry,stemming from its ability to trigger an alarming plummet in egg production and usher in acute mortality among laying *** evidence suggests that the onset and progression of fatty liver was closely related to mitochondria *** butyrate was demonstrated to modulate hepatic lipid metabolism,alle-viate oxidative stress and improve mitochondrial dysfunction in vitro and mice ***,there is limited existing research on coated sodium butyrate(CSB)to prevent FLHS in laying hens,and whether and how CSB exerts the anti-FLHS effect still needs to be *** this experiment,the FLHS model was induced by administering a high-energy low-protein(HELP)diet in laying *** objective was to investigate the effects of CSB on alleviating FLHS with a focus on the role of CSB in modulating mitochondrial *** A total of 288 healthy 28-week-old Huafeng laying hens were arbitrarily allocated into 4 groups with 6 replicates each,namely,the CON group(normal diet),HELP group(HELP diet),CH500 group(500 mg/kg CSB added to HELP diet)and CH750 group(750 mg/kg CSB added to HELP diet).The duration of the trial encompassed a period of 10 *** The result revealed that CSB ameliorated the HELP-induced FLHS by improving hepatic steatosis and patho-logical damage,reducing the gene levels of fatty acid synthesis,and promoting the mRNA levels of key enzymes of fatty acid *** reduced oxidative stress induced by the HELP diet,upregulated the activity of GSH-Px and SOD,and decreased the content of MDA and *** also mitigated the HELP diet-induced inflammatory response by blocking TNF-α,IL-1β,and F4/*** addition,dietary CSB supplementation attenuated HELP-induced activation of the mitochondrial unfolded protein response(UPRmt),mitochondrial damage,and decline of ATPase *** diet decreased th

关键词： Autophagy Coated sodium butyrate Laying hens Lipid metabolism Mitochondria

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Effect of red clover isoflavones on hormone, immune, inflammatory,and plasma biochemistry in lactating dairy cows

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animal Nutrition 2024年第1期16卷 306-312页

作者： Shiqi Zhang Xiaoyin Zhang Zhanbo Xiong Kexin Li Yuan Gao Ying Bu Nan Zheng Shengguo Zhao Jiaqi Wang State Key laboratory of animal Nutrition Institute of Animal Sciences Chinese Academy of Agricultural Sciences

This study was to conducted to investigate the effect of red clover isoflavones on the health indicated by immune status and blood biochemistry in dairy cows. Sixty-eight healthy Holstein lactating cows were randomly divided into four treatments(n = 17 per treatment) from 5 blocks according to milk yield using a randomized complete block design. No initial differences in parity(2.13 ± 1.21), days in milk(165 ± 21 d), and milk yield(33.93 ± 3.81 kg/d) between groups. Cows were fed the basal diet supplemented with 0, 2, 4, or 8 g/kg red clover extract(RCE) in diet(dry matter based). Feeding, refusal feed weights, and milk yield were recorded three consecutive days in weeks 0, 4, 8, and 12. Blood was collected from the tail vein of the cows on the last day of weeks 4, 8 and 12, 1 h after the morning feeding,and analyzed for hormones, immunoglobulins, inflammatory markers, and markers of liver and kidney activities. The dry matter intake was significantly decreased by 3.7% in the 8 g/kg group(P 0.05). These results recommend the supplementation of RCE at a level from 2 to4 g/kg DM.

关键词： Dairy cow Red clover isoflavone Immunity Anti-inflammatory

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Low-protein diet supplemented with 1% L-glutamine improves growth performance, serum biochemistry, redox status, plasma amino acids, and alters fecal microbiota in weaned piglets

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animal Nutrition 2024年第2期17卷 144-154页

作者： Jun Li Jun Bai Ying Yang Zhenlong Wu State Key laboratory of animal Nutrition and Feeding Department of Companion Animal Science China Agricultural University

Glutamine, one of the most abundant amino acids in the body, has been shown to exert various beneficial effects in pigs. However, knowledge regarding the role of dietary glutamine in low-protein diet-fed piglets remains scarce. The present study aimed to investigate the effects of different levels of L-glutamine on growth performance, serum biochemistry parameters, redox status, amino acids, and fecal microbiota in low-protein diet-fed piglets. A total of 128 healthy crossbred piglets(Landrace × Yorkshire)were randomly allocated into 4 groups of 4 replicate pens, with 8 piglets per pen. Piglets in the 4 groups were fed with corn and soybean meal-based low-protein diets(crude protein level, 17%) that contained0%, 1%, 2%, and 3% L-glutamine, respectively, for 28 d. Pigs administered 1% L-glutamine had greater body weight on d 28 and average daily gain(ADG, P < 0.01), whereas a lower feed to gain ratio(F:G) from d 1to 28(P < 0.01), compared to the other three groups. Besides, lower body weight on d 14 and 28, ADG,average daily feed intake, and higher F:G from d 15 to 28 and d 1 to 28 were observed in response to 2%and 3% L-glutamine treatments than 0% and 1% L-glutamine treatments(P < 0.01). Moreover, 1% Lglutamine reduced serum glucose, malondialdehyde, hydrogen peroxide concentrations and inhibited aspartate aminotransferase, alanine aminotransferase, myeloperoxidase activities in low-protein diet-fed piglets on d 14, with concomitantly upregulated catalase, total superoxide dismutase activities and glutathione level(P < 0.05). However, dietary 3% L-glutamine enhanced blood urea nitrogen content in pigs on d 14(P < 0.05). Further investigation revealed that 1% L-glutamine upregulated the serum glutamine, lysine, methionine, tyrosine, and reduced plasma valine content(P < 0.05). Additionally, 1% Lglutamine upregulated the abundance of p＿75＿a5, Clostridium, Lactobacillus, Prevotellaceae＿Prevotella,and Gemmiger in the stool of piglets on d 14, with the Streptococcus lev

关键词： Glutamine Low protein diet Pig Redox status Amino acid Microbiota

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Cellular and Transcriptional Dynamics during Brown Adipose Tissue Regeneration under Acute Injury

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Research 2024年第3期2023卷 345-357页

作者： Wenjing You Ziye Xu Wentao Chen Xin Yang Shiqi Liu Liyi Wang Yuang Tu Yanbing Zhou Teresa G.Valencak Yizhen Wang Shihuan Kuang Tizhong Shan College of animal Sciences Zhejiang UniversityHangzhouChina The Key laboratory of Molecular animal Nutrition Ministry of EducationHangzhouChina Zhejiang Provincial laboratory of Feed and animal Nutrition HangzhouChina Department of laboratory Medicine the First Affiliated HospitalCollege of MedicineZhejiang UniversityHangzhouChina Department of animal Sciences Purdue UniversityWest LafayetteINUSA.

Brown adipose tissue(BAT)is the major site of non-shivering thermogenesis and crucial for systemic *** chronic cold exposures and high-fat diet challenges,BAT undergoes robust remodeling to adapt to physiological ***,whether and how BAT regenerates after acute injuries are poorly ***,we established a novel BAT injury and regeneration model(BAT-IR)in mice and performed single-cell RNA sequencing(scRNA-seq)and bulk RNA-seq to determine cellular and transcriptomic dynamics during *** further defined distinct fibro-adipogenic and myeloid progenitor populations contributing to BAT *** trajectory and gene expression analyses uncovered the involvement of MAPK,Wnt,and Hedgehog(Hh)signaling pathways in BAT *** confirmed the role of Hh signaling in BAT development through Myf5Cre-mediated conditional knockout(cKO)of the Sufu gene to activate Hh signaling in BAT and muscle *** BAT-IR model therefore provides a paradigm to identify conserved cellular and molecular mechanisms underlying BAT development and remodeling.

关键词： injuries involvement acute

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Probiotic cocktails accelerate baicalin metabolism in the ileum to modulate intestinal health in broiler chickens

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Journal of animal Science and Biotechnology 2024年第2期15卷 779-794页

作者： Mingkun Gao Chaoyong Liao Jianyang Fu Zhonghua Ning Zengpeng Lv Yuming Guo State Key laboratory of animal Nutrition and Feeding College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China National Engineering laboratory for animal Breeding College of Animal Science and TechnologyChina Agricultural UniversityBeijing 100193China

Background Baicalin and probiotic cocktails are promising feed additives with broad application *** probiotic cocktails are known to enhance intestinal health,the potential synergistic impact of combining baicalin with probiotic cocktails on the gut health of broiler chickens remains largely ***,this study aims to investigate the influence of the combined administration of baicalin and probiotic cocktails on the composition of ileal and cecal microbiota in broiler chickens to elucidate the underlying mechanisms responsible for the healthpromoting *** A total of 3201-day-old male Arbor Acres broilers were divided into 4 groups,each with 8 replicates of 10 chicks per *** a period of 42 d,the birds were fed a basal diet or the same diet supplemented with 37.5 g/t baicalin(BC),1,000 g/t probiotic cocktails(PC),or a combination of both BC(37.5 g/t)and PC(1,000 g/t).The results demonstrated that BC+PC exhibited positive synergistic effects,enhancing intestinal morphology,immune function,and barrier *** was evidenced by increased VH/CD ratio,sIgA levels,and upregulated expression of occludin and claudin-1(P<0.05).16S rRNA analysis indicated that PC potentiated the effects of BC,particularly in the ileum,where BC+PC significantly increased theα-diversity of the ileal microbiota,altered itsβ-diversity,and increased the relative abundance of Flavonifractor(P<0.05),a flavonoid-metabolizing ***,Flavonifractor positively correlated with chicken ileum crypt depth(P<0.05).While BC+PC had a limited effect on cecal microbiota structure,the PC group had a very similar microbial composition to BC+PC,suggesting that the effect of PC at the distal end of the gut overshadowed those of *** We demonstrated the synergistic enhancement of gut health regulation in broiler chickens by combining baicalin and probiotic *** cocktails enhanced the effects of baicalin and accelerated its metab

关键词： Baicalin Gut health Ileal microbiota Probiotic cocktails Synergistic effects

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Dietary copper requirement of broilers fed a corn-soybean meal diet during 22—42 d of age

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animal Nutrition 2024年第1期16卷 96-104页

作者： Ling Zhu Wei Wu Bingxin Wu Yun Hu Liyang Zhang Weiyun Zhang Tingting Li Xiaoyan Cui Feiyu Gao Ding Li Xugang Luo Shengchen Wang Poultry Mineral Nutrition laboratory College of Animal Science and TechnologyYangzhou University Mineral Nutrition Research Division State Key Laboratory of Animal NutritionInstitute of Animal ScienceChinese Academy of Agricultural Sciences

This research was to assess the dietary copper(Cu) requirement of broiler chickens fed a practical cornsoybean meal diet during 22—42 d of age. A total of 288 numbered Arbor Acres male broilers at 22 d of age were randomly allotted 6 treatments with 8 replicate cages(6 broilers per cage) per *** were fed a Cu-unsupplemented corn-soybean meal basal diet(control, containing 7.36 mg Cu/kg) or the basal diet added with 3, 6, 9, 12, or 15 mg Cu/kg from CuSO4·5H2O for 21 d. Quadratic,asymptotic and broken-line models were fitted and the best fitted models were selected to determine dietary Cu requirements. The results revealed that the contents of Cu in serum and liver, m RNA expression levels of Cu-and zinc-containing superoxide dismutase(CuZnSOD) in liver and monoamine oxidase b(MAO B) in heart, as well as protein expression level of CuZnSOD in liver were affected(P < 0.05) by supplemental Cu levels, and the above indices varied linearly and quadratically(P < 0.05)with increasing Cu levels. Dietary Cu requirements assessed according to the best fitted broken-line models(P < 0.05) of the above indexes were 10.45—13.81 mg/kg. It was concluded that mRNA expression levels of CuZnSOD in liver and MAO B in heart, as well as liver CuZnSOD protein expression level were new specific sensitive biomarkers for estimating dietary Cu requirements, and the dietary Cu requirement was recommended to be 14 mg/kg to support Cu metabolic needs related to key Cucontaining enzymes in broilers fed the corn-soybean meal diet during 22—42 d of age, which was higher than the dietary Cu requirement(8 mg/kg) for broilers at the corresponding stage suggested by the Chinese Feeding Standard of Chicken.

关键词： Copper Copper content Gene expression of copper-containing enzyme Requirement Broiler

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Artificial parasin I protein(API)supplementation improves growth performance and intestinal health in weaned piglets challenged with enterotoxigenic Escherichiacoli

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animal Nutrition 2024年第3期18卷 154-165页

作者： Congzhi Zou Wanxin Zhao Shenggang Yin Xiaoyu Xiang Jiayong Tang Gang Jia Lianqiang Che Guangmang Liu Xiaoling Chen Gang Tian Jingyi Cai Bo Kang Hua Zhao Key laboratory for animal Disease-Resistance Nutrition of Ministry of Education Key Laboratory for Animal Disease-Resistance Nutrition of Ministry of Agriculture and Rural AffairsKey Laboratory for Animal Disease-Resistance Nutrition of Sichuan ProvinceAnimal Nutrition InstituteSichuan Agricultural UniversityChengdu 611130China College of animal Science and Technology Sichuan Agricultural UniversityChengdu 611130China

Diarrheas are common risks faced by piglets during the weaning *** study investigated the alleviating effects of artificial parasin I protein(API)on growth performance and intestinal health of weaned pigs upon enterotoxigenic Escherichia coli(ETEC)*** piglets were randomly divided into five groups and fed a basal diet(CON)or basal diet supplemented with API at 0,750,and 1500 mg/kg or antibiotics for 5 *** d 15 and 25,piglets were challenged with ETEC K88 except for the CON *** the ETEC challenge(d 1–14),dietary API supplementation improved growth performance,and 750 mg API increased(P<0.05)the average daily gain(ADG),decreased(P<0.05)feed to gain ratio(F/G)and diarrhea index of weaned *** challenge(during d 15–35)reduced growth performance and increased(P<0.01)the F/G,diarrhea rate,and diarrhea *** event was accompanied by the numerically increased malondialdehyde(MDA)levels in serum and ileum,the decreased(P<0.05)zonula-occludens-1(ZO-1)and interleukin-6(IL-6)in the ileum,and the increased(P=0.04)secretory immunoglobulin A(sIgA)protein in the *** parasin I protein supplementation alleviated the negative impact of *** 750 mg/kg API inclusion elevated(P<0.05)ADG and decreased(P<0.05)F/*** levels of API decreased(P<0.01)the diarrhea rate and diarrhea ***,API inclusion decreased(P<0.01)the crypt depth in the jejunum,elevated(P<0.05)villus height in the duodenum and villus height to crypt depth ratio in the duodenum and ileum,up-regulated(P<0.05)ZO-1 gene,and down-regulated(P<0.05)mucin-2 gene in the jejunum,and 1500 mg/kg API decreased(P<0.01)sIgA level and down-regulated(P<0.05)IL-1βgene in the ***,750 mg/kg API elevated(P<0.01)Bifidobacteria population and acetic acid concentrations in the cecal *** conclusion,API supplementation alleviates the negative impact of ETEC on growth performance and intestinal health,thus can be applied as an antibiotic alternative in weane

关键词： Artificial parasin I protein Growth performance Intestinal barrier Diarrhea Weaned piglet

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