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Marine red yeast supplementation improves laying performance by regulating small intestinal homeostasis in aging chickens

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ANIMAL NUTRITION 2024年第3期18卷 177-190页

作者： Zhao, Yudian Si, Sujin Ren, Yangguang Wu, Xing Zhang, Zihao Tian, Yixiang Li, Jing Li, Yijie Hou, Meng Yao, Xueyang Xu, Zhaoheng Jiang, Ruirui Kang, Xiangtao Gong, Yujie Li, Qiang Tian, Yadong Henan Agr Univ Coll Anim Sci & Technol Zhengzhou 450046 Peoples R China Henan Key Lab Innovat & Utilizat Chicken Germplasm Zhengzhou 450046 Peoples R China Henan Coll Anim Husb & Econ Zhengzhou 450046 Peoples R China Henan Inst Sci & Technol Coll Anim Sci & Vet Med Xinxiang 453003 Peoples R China AB Vista Marlborough SN8 4AN England

Recent studies have shown that age-related aging evolution is accompanied by imbalances in intestinal homeostasis. Marine red yeast (MRY) is a functional probiotic that has been shown to have antioxidant, immune and other properties. Therefore, we chose 900 healthy Hy-Line Brown hens at 433 d old as the research subjects and evaluated the correlation between intestinal health, laying performance, and egg quality in aged hens through the supplementation of MRY. These laying hens were assigned into 5 groups and received diet supplementation with 0%, 0.5%, 1.0%, 1.5%, and 2% MRY for 12 weeks. The results showed that MRY supplementation increased egg production rate, average egg weight, and egg quality, and decreased feed conversion ratio and daily feed intake (P < 0.05). The MRY supplement improved antioxidant indicators such as superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GSH-Px), stimulated villus height, and increased the villus height to crypt depth ratio (V/C ratio) in the intestine (P < 0.05). It also regulated the expression of intestinal inflammatory factors (transforming growth factor-beta [TGF-beta], interleukin [IL]-1 beta, IL-8, tumor necrosis factor-alpha [TNF-alpha]) while increasing serum immunoglobulin G (IgG) levels (P < 0.05). Furthermore, MRY supplementation upregulated the mRNA expression of tight junction proteins (occludin and zonula occludens-1 [ZO-1]), anti-apoptotic gene (Bcl-2), and autophagy-related proteins (beclin-1 and light chain 3I [LC3I]) in the intestine (P < 0.05). The MRY supplement also led to an increase in the concentration of short-chain fatty acids in the cecum, and the relative abundance of the phylum Bacteroidetes, and genera Bacteroides and Rikenellaceae_RC9_gut_group. The LEfSe analysis revealed an enrichment of Sutterella and Akkermansia muciniphila. In conclusion, the results of this experiment indicated that the additional supplementation of MRY can improve the production performance of laying hens

关键词： Marine red yeast Laying hen Senescence Intestinal homeostasis EGG-PRODUCTION BACILLUS-LICHENIFORMIS ANTIOXIDANT ACTIVITY IN-VITRO MORPHOLOGY MICROBIOTA QUALITY HENS INFLAMMATION FERMENTATION

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Hepatic steatosis is associated with dysregulated cholesterol metabolism and altered protein acetylation dynamics in chickens

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Journal of Animal Science and Biotechnology 2024年第1期15卷 53-67页

作者： Xiaoli Guo Qianqian Zhou Jiaming Jin Fangren Lan Chaoliang Wen Junying Li Ning Yang Congjiao Sun National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics Breeding and ReproductionMinistry of Agriculture and Rural AffairsChina Agricultural UniversityBeijing 100193China

Background Hepatic steatosis is a prevalent manifestation of fatty liver, that has detrimental effect on the health and productivity of laying hens, resulting in economic losses to the poultry industry. Here, we aimed to systematically investigate the genetic regulatory mechanisms of hepatic steatosis in laying *** Ninety individuals with the most prominent characteristics were selected from 686 laying hens according to the accumulation of lipid droplets in the liver, and were graded into three groups, including the control, mild hepatic steatosis and severe hepatic steatosis groups. A combination of transcriptome, proteome, acetylome and lipidome analyses, along with bioinformatics analysis were used to screen the key biological processes, modifications and lipids associated with hepatic *** The rationality of the hepatic steatosis grouping was verified through liver biochemical assays and RNA-seq. Hepatic steatosis was characterized by increased lipid deposition and multiple metabolic abnormalities. Integration of proteome and acetylome revealed that differentially expressed proteins(DEPs) interacted with differentially acetylated proteins(DAPs) and were involved in maintaining the metabolic balance in the liver. Acetylation alterations mainly occurred in the progression from mild to severe hepatic steatosis, i.e., the enzymes in the fatty acid oxidation and bile acid synthesis pathways were significantly less acetylated in severe hepatic steatosis group than that in mild group(P < 0.05). Lipidomics detected a variety of sphingolipids(SPs) and glycerophospholipids(GPs) were negatively correlated with hepatic steatosis(r ≤-0.5, P < 0.05). Furthermore, the severity of hepatic steatosis was associated with a decrease in cholesterol and bile acid synthesis and an increase in exogenous cholesterol *** In addition to acquiring a global and thorough picture of hepatic steatosis in laying hens, we were able to reveal the role of ac

关键词： Acetylation Cholesterol metabolism Hepatic steatosis Laying hens Multiomics

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Dietary supplementation with calcitriol or quercetin improved eggshell and bone quality by modulating calcium metabolism

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ANIMAL NUTRITION 2024年第3期18卷 340-355页

作者： Fu, Yu Zhou, Jianmin Schroyen, Martine Lin, Jing Zhang, Haijun Wu, Shugeng Qi, Guanghai Wang, Jing Chinese Acad Agr Sci Inst Feed Res Minist Agr & Rural Affairs Key Lab Feed BiotechnolLab Qual & Safety Risk Ass Beijing 100081 Peoples R China Univ Liege TERRA Teaching & Res Ctr Precis Livestock & Nutr Lab Gembloux Agrobio Tech B-5030 Gembloux Belgium

This study was aimed to investigate the effects of dietary calcitriol or quercetin supplementation on eggshell and bone quality of laying hens. In trial 1, 72 Hy-Line Brown layers (80-week-old) with weak-shelled strength (25 to 30 N) were assigned into 4 dietary treatments with 6 replicates of 3 birds and fed a basal diet (4% calcium level) or basal diets supplemented with 0.5% calcium, 5 mu g/kg calcitriol or 500 mg/kg quercetin for 4 weeks. In trial 2, 360 Hy-Line Brown layers (60-week-old) were divided into 3 groups with 8 replicates of 15 birds: control group (basal diet), calcitriol group (basal diet + 5 mu g/kg calcitriol), and quercetin group (basal diet + 500 mg/kg quercetin). This trial lasted for 12 weeks. The results showed that dietary calcitriol or quercetin improved eggshell quality in both trials (P < 0.05). In trial 2, compared with the control group, both calcitriol and quercetin supplementations improved femoral bone quality, calcium retention of hens and calcium content in uterine fluid at 18.5 h post-oviposition (PO) (P < 0.05), along with enhancing uterine morphology. Compared to the control group, supplemental calcitriol or quercetin up-regulated the relative mRNA expression levels of uterine transient receptor potential cation channel, subfamily V, member 6 (TRPV6) at 8.5 h PO and plasma membrane calcium-ATPase (PMCA), vitamin D receptor (VDR), estrogen receptor alpha (ER alpha) at 18.5 h PO (P < 0.05), but down-regulated the uterine caspase 3 (CASP3) relative mRNA expression level at 8.5 h PO (P < 0.05). Meanwhile, the femoral relative mRNA expression levels of tartrate-resistant acid phosphatase (TRAP) (up-regulated at 8.5 and 18.5 h PO) and alkaline phosphatase (ALP) (up-regulated at 8.5 h PO but down-regulated at 18.5 h PO) were also affected by calcitriol or quercetin supplementation (P < 0.05). Compared to the calcitriol, quercetin increased hen-day egg production and femoral medullary bone volume/bone tissue volume but reduced femoral s

关键词： Uterine calcium transport Bone remodeling Eggshell quality Bone quality Calcitriol Quercetin VITAMIN-D GENE-EXPRESSION EGG QUALITY RECEPTOR MINERALIZATION PERFORMANCE STRENGTH 1-ALPHA,25-DIHYDROXYCHOLECALCIFEROL BIOSYNTHESIS OSTEOPOROSIS

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Genetic basis of negative heterosis for growth traits in chickens revealed by genome-wide gene expression pattern analysis

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Journal of Animal Science and Biotechnology 2021年第4期12卷 1267-1280页

作者： Chunning Mai Chaoliang Wen Zhiyuan Xu Guiyun Xu Sirui Chen Jiangxia Zheng Congjiao Sun Ning Yang National Engineering Laboratory for Animal Breeding and Key Laboratory of Animal Genetics Breeding and ReproductionMinistry of Agriculture and Rural AffairsChina Agricultural UniversityBeijing 100193China

Background:Heterosis is an important biological phenomenon that has been extensively utilized in agricultural ***,negative heterosis is also pervasively observed in nature,which can cause unfavorable impacts on production *** with systematic studies of positive heterosis,the phenomenon of negative heterosis has been largely ignored in genetic studies and breeding programs,and the genetic mechanism of this phenomenon has not been thoroughly elucidated to ***,we used chickens,the most common agricultural animals worldwide,to determine the genetic and molecular mechanisms of negative ***:We performed reciprocal crossing experiments with two distinct chicken lines and found that the body weight presented widely negative heterosis in the early growth of *** heterosis of carcass traits was more common than positive heterosis,especially breast muscle mass,which was over−40%in reciprocal ***-wide gene expression pattern analyses of breast muscle tissues revealed that nonadditivity,including dominance and overdominace,was the major gene inheritance *** genes,including a substantial number of genes encoding ATPase and NADH dehydrogenase,accounted for more than 68%of differentially expressed genes in reciprocal crosses(4257 of 5587 and 3617 of 5243,respectively).Moreover,nonadditive genes were significantly associated with the biological process of oxidative phosphorylation,which is the major metabolic pathway for energy release and animal growth and *** detection of ATP content and ATPase activity for purebred and crossbred progenies further confirmed that chickens with lower muscle yield had lower ATP concentrations but higher hydrolysis activity,which supported the important role of oxidative phosphorylation in negative heterosis for growth traits in ***:These findings revealed that nonadditive genes and their related oxidative phosphorylation were the m

关键词： Chicken Growth Gene expression patterns Heterosis Oxidative phosphorylation

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Carotenoid enrichment in eggs:From biochemistry perspective

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Animal Nutrition 2023年第3期14卷 315-333页

作者： Dieudonne M.Dansou Huiyan Zhang Yanan Yu Hao Wang Chaohua Tang Qingyu Zhao Yuchang Qin Junmin Zhang State Key Laboratory of Animal Nutrition and Feeding Institute of Animal SciencesChinese Academy of Agricultural SciencesBeijing 100193China

The emergence of safe and functional eggs for consumer acceptance has gained *** production of carotenoid-enriched eggs has received attention due to its multifunctional biological *** modification of laying hens’diet can be a strategy to produce such *** review presents the chemistry of carotenoids in nature and eggs,the accumulation process of carotenoids into eggs,and the functions of carotenoids in *** findings showed that carotenoids can be deposited into the egg and contribute to improving its nutritive *** biosynthesis,chemical structure,and metabolism pathways of carotenoids lead to the deposition of carotenoids into eggs in their original or metabolized ***,some factors modulate the efficiency of carotenoids in fowls before accumulation into ***-enriched eggs may be promising,ensuring the availability of highly nutritive ***,further studies are still needed to comprehend the full metabolism process and the extensive functions of carotenoids in eggs.

关键词： Egg enrichment Egg fortification Carotenoid chemistry Bioavailability Metabolism Function

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Design and test of an inside-filling pneumatic precision centralized seed-metering device for rapeseed

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International Journal of Agricultural and Biological Engineering 2017年第2期10卷 56-62页

作者： Liao Yitao Wang Lei Liao Qingxi Engineering College Huazhong Agricultural UniversityWuhan 430070China

The pneumatic precision seed-metering devices used in combination with negative air pressure to suck seed and positive air flow to drop seed could overcome the problem of rapeseed precision ***,these devices can only plant a single row at a time or need high airflow pressure,which complicates the seed-metering system and the seeder structure,deteriorate the working reliability and have high power *** overcome above shortcomings,a novel prototype of pneumatic precision centralized seed-metering device with seed inside-filling,sowing six rows at a time,was *** main structure and working principle of the prototype were described and the technical parameters were *** were conducted to investigate the influences of positive pressure,negative pressure,and rotating speed on the seeding *** stability of each row and the consistency between all rows associated with the seeding precision were analyzed to evaluate the performance of the *** results indicated that the prototype can meet the requirements of precision seeding and the seed keep intact without any obvious *** performance of the prototype was no significant difference when the positive pressure was fluctuated from 200 Pa to 1200 *** best seeding precision parameters in one row of the prototype was 92.48%of the qualified seeding index(Iqs)and 2.55%of the miss-seeding index(Imiss),when the rotating speed was 16 r/min,the positive pressure was 200 Pa and the negative pressure was–1600 *** the rotating speed was 16 r/min,the positive pressure was 200 Pa,and the negative pressure was–1400 Pa or–1600 Pa,the Iqs of six rows were above 86.5%,the stability coefficient of variation(CV)of each row were below 4.6%,and the consistency CV were below 0.9%.Further field experiment showed that the rapeseed sowed by the prototype had acceptable seeding *** CV of the numbers of rapeseed seedlings in the field of the total and each row were 6.

关键词： centralized seed-metering device seed inside-filling pneumatic precision sowing rapeseed

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Curent Situation of “Candidatus Liberibacter asiaticus” in Guangdong,china,Where Citrus Huanglongbing Was First Described

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Journal of Integrative agriculture 2012年第3期11卷 424-429页

作者： DENG Xiao-ling GAO Yi-di CHEN Jian-chi PU Xue-lian KONG Wei-wen LI Hua-ping Laboratory of Citrus Huanglongbing research South China Agricultural University Guangzhou 510642 P.R. China San Joaquin Valley Agricultural Sciences Center USDA-ARS Parlier California 93648 USA School of Horticulture and Plant Protection Yangzhou University Yangzhou 225009 P.R. China

Citrus Huanglongbing （HLB,yellow shoot disease） was first observed in the coastal Chaoshan Plain of Guangdong Province,china,in the late 19th century based on descriptions of yellow shoot symptoms. “Candidatus Liberibacter asiaticus”has been considered as a putative pathogen associated with HLB since *** about the curent prevalence of this bacterium is important for HLB control in Guangdong and also provides useful reference for HLB study *** 2007,we collected HLB symptomatic citrus samples from 16 cultivars in 12 prefecture cities,mostly in the north and west regions of Guangdong,where major citrus fruits are currently *** the 359 samples collected,241 （67.1%） were positive for “***”,distributed in 15 out of the 16 cultivars from all 12 cities,indicating the widespread prevalence of “***” in Guangdong *** detection rates varied from 16.7 to 100% depending on location and *** detection rates were found in newer citrus cultivation cities among the previously less popular but now promoted *** reviewing the citrus management and pest control practice,we believe that infected nursery stocks play a key role in the current spread of “***”.

关键词： citrus Huanglongbing Candidatus Liberibacter asiaticus

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Poultry genetic heritage cryopreservation and reconstruction:advancement and future challenges

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Journal of Animal Science and Biotechnology 2023年第1期14卷 15-32页

作者： Yanyan Sun Yunlei Li Yunhe Zong Gamal M.K.Mehaisen Jilan Chen Key Laboratory of Animal(Poultry)Genetics Breeding and Reproduction Ministry of Agriculture and Rural AffairsInstitute of Animal ScienceChinese Academy of Agricultural SciencesBeijing 100193China. Department of Animal Production Faculty of AgricultureCairo UniversityGiza 12613Egypt.

Poultry genetics resources,including commercial selected lines,indigenous breeds,and experimental lines,are now being irreversibly lost at an alarming rate due to multiple reasons,which further threats the future livelihood and academic *** of germplasm may reduce the risk of catastrophic loss of genetic diversity by guaranteeing that a pool of genetic variability is available to ensure the reintroduction and replenishment of the genetic *** setting up of biobanks for poultry is challenging because the high sensitiveness of spermatozoa to freezing–thawing process,inability to cryopreserve the egg or embryo,coupled with the females being heterogametic *** progress in cryobiology and biotechnologies have made possible the extension of the range of germplasm for poultry species available in cryobanks,including semen,primordial germ cells,somatic cells and *** this review,we introduce the state-of-the-art technologies for avian genetic resource conservation and breed reconstruction,and discuss the potential challenges for future study and further extending of these technologies to ongoing and future conservation efforts.

关键词： Breed reconstruction Cryopreservation Germplasm Gonad PGC Poultry Semen Somatic cell

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Monochromatic green light stimulation during incubation shortened the hatching time via pineal function in White Leghorn eggs

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Journal of Animal Science and Biotechnology 2021年第3期12卷 1226-1235页

作者： Panlin Wang Yanyan Sun Yunlei Li Jing Fan Yunhe Zong Adamu Mani Isa Lei Shi Yuanmei Wang Aixin Ni Pingzhuang Ge Linlin Jiang Shixiong Bian Hui Ma Zhengdong Yuan Xiaolin Liu Jilan Chen Institute of Animal Sciences Chinese Academy of Agricultural SciencesKey Laboratory of Animal(Poultry)Genetics Breeding and ReproductionMinistry of Agriculture and Rural AffairsBeijing 100193China College of Animal Science and Technology Northwest A&F UniversityYangling 712100China Beijing DQY Agricultural Science and Technology Co. Ltd.Beijing 100094China

Background:Effect of monochromatic green light illumination on embryo development has been reported in *** avian pineal gland is an important photo-endocrine organ formed by a mediodorsal protrusion during embryonic ***,the involvement of pineal gland in the light transduction process remains to be *** the present study,we investigated the influence of monochromatic green light on hatching time and explored the possible mechanism via pineal ***:A total of 600 eggs of White Leghorn(Shaver strain)were incubated under photoperiods of either 12 h of light and 12 h of darkness using monochromatic green light(12L:12D group)or 24 h of darkness(0L:24D group)for 18 *** to 0L:24D group,the green light stimulation shortened the hatching time without extending the hatch window or impairing *** liver of embryos incubated in the 12L:12D light condition was heavier than those of the 0L:24D group on d 21 post incubation which may be linked to the observed increase in the serum concentration of insulin-like growth factor 1(IGF-1);primary secretion of the *** structure analysis of pineal gland demonstrated that the light stimulation increased follicle area,wall thickness and lumen area on d 10 and d 12 post *** function analysis demonstrated that three clock related genes(brain and muscle ARNT-like-1,BMAL1;circadian locomotor output cycles kaput,CLOCK;and cryptochrome-1,CRY1)and a melatonin rate-limiting enzyme related gene(arylalkylamine N-acetyltransferase,AANAT)were rhythmically expressed in the pineal gland of the 12L:12D group,but not in the 0L:24D ***,the light stimulation also increased the concentration of melatonin(MT),which was linked to hepatocyte proliferation and IGF-1 secretion in previous ***:The 12L:12D monochromatic green light stimulation during incubation shortened hatching time without impairing hatching *** gland’s ear

关键词： Circadian rhythm Hatching time Insulin-like growth factor 1 Melatonin Monochromatic green light Pineal gland

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Development of transplanting manipulator for hydroponic leafy vegetables

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International Journal of Agricultural and Biological Engineering 2019年第6期12卷 38-44页

作者： Bo Li Song Gu Qi Chu Yanli Yang Zhongjian Xie Kaijun Fan Xiaogeng Liu College of Engineering South China Agricultural UniversityGuangzhou 510642China Key Laboratory of Key Technology on Agricultural Machine and Equipment Ministry of EducationSouth China Agricultural UniversityGuangzhou 510642China Guangzhou Sky Mechanical&Electrical Technology Co. LtdGuangzhou 510642China

The production of hydroponic leafy vegetable plug-seedlings uses coco-peat as culture substrate in South ***-peat has lowered density than peat-moss,and the friction between substrate block and pickup tool is ***,it is hard to pick up in mechanism *** order to increase the friction,the existing transplanting manipulator had relatively complex *** simplify the structure of transplanting manipulator and improve the stability of picking up substrate block,four stainless steel fingers with rectangular cross-section were used in this research.A vertical driving was used to realize the coupling effect that could insert and shrink at the same time,by applying different combination of constraints to the steel *** could increase friction between the steel fingers and the substrate block,and then enhance the stability of the substrate *** combinations of constraints were applied to the rectangular stainless steel fingers(3 mm×0.8 mm).The working videos of steel fingers were taken by high-speed ***-speed motioned analysis software was used to acquire and analyze traces of steel fingers *** the length which top end of the steel fingers moved outward(M)is equal to 1.5 mm,the length which guiding part widened(N)is equal to 1 mm,the shrinking distance of steel fingers is 4.2 *** this research,16-day hydroponic leafy vegetable plug-seedlings were used for performance,which cultivated with coco-peat substrate with the moisture in the substrate at 81%.The transplanting manipulator was attached to a Denso robotic arm to conduct transplanting performance *** the shrinking distance of steel fingers increased from 0 mm to 3.2 mm and the inserting angle decreased from 80°to 77°,the lifting force of substrate block increased by 118%from 1.45 N to 3.16 ***,excessive shrinkage stirred the substrate block,which would reduce the friction between the substrate block and pickup parts and lowered the l

关键词： transplanting robot transplant manipulator steel fingers hydroponic leafy vegetable plug-seedlings high-speed photography guidance constraints shrinkage

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