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Ru M, Liang H, Ruan J, Haji RA, Cui Y, Yin C, Wei Q, Huang J. Chicken ovarian follicular atresia: interaction network at organic, cellular, and molecular levels. Poult Sci 2024; 103:103893. [PMID: 38870615 PMCID: PMC11225904 DOI: 10.1016/j.psj.2024.103893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2024] [Revised: 05/13/2024] [Accepted: 05/20/2024] [Indexed: 06/15/2024] Open
Abstract
Most of follicles undergo a degenerative process called follicular atresia. This process directly affects the egg production of laying hens and is regulated by external and internal factors. External factors primarily include nutrition and environmental factors. In follicular atresia, internal factors are predominantly regulated at 3 levels; organic, cellular and molecular levels. At the organic level, the hypothalamic-pituitary-ovary (HPO) axis plays an essential role in controlling follicular development. At the cellular level, gonadotropins and cytokines, as well as estrogens, bind to their receptors and activate different signaling pathways, thereby suppressing follicular atresia. By contrast, oxidative stress induces follicular atresia by increasing ROS levels. At the molecular level, granulosa cell (GC) apoptosis is not the only factor triggering follicular atresia. Autophagy is also known to give rise to atresia. Epigenetics also plays a pivotal role in regulating gene expression in processes that seem to be related to follicular atresia, such as apoptosis, autophagy, proliferation, and steroidogenesis. Among these processes, the miRNA regulation mechanism is well-studied. The current review focuses on factors that regulate follicular atresia at organic, cellular and molecular levels and evaluates the interaction network among these levels. Additionally, this review summarizes atretic follicle characteristics, in vitro modeling methods, and factors preventing follicular atresia in laying hens.
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Affiliation(s)
- Meng Ru
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, China
| | - Haiping Liang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, China
| | - Jiming Ruan
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, China
| | - Ramlat Ali Haji
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, China
| | - Yong Cui
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, China
| | - Chao Yin
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, China
| | - Qing Wei
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, China
| | - Jianzhen Huang
- Jiangxi Provincial Key Laboratory for Animal Health, Institute of Animal Population Health, College of Animal Science and Technology, Jiangxi Agricultural University, Economic and Technological Development District, Nanchang 330045, China.
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Ahmadi S, Nemoto Y, Ohkubo T. Impact of In Ovo Leptin Injection and Dietary Protein Levels on Ovarian Growth Markers and Early Folliculogenesis in Post-Hatch Chicks ( Gallus gallus domesticus). BIOLOGY 2024; 13:69. [PMID: 38392288 PMCID: PMC10886161 DOI: 10.3390/biology13020069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 01/19/2024] [Accepted: 01/21/2024] [Indexed: 02/24/2024]
Abstract
Genetically bred for rapid growth, broiler breeder hens develop obesity and ovarian dysfunction when fed ad libitum, resembling a condition that resembles human polycystic ovary syndrome (PCOS). Nutritional control applies to post-hatched chicks from one week onward to prevent the development of a PCOS-like phenotype in adult broilers. This study investigated the impact of a growth marker, leptin, and post-hatch nutritional intake on early-life ovarian function. Fertile broiler eggs were injected in ovo with physiological saline solution or 5 µg of leptin and then incubated. After hatching, female chicks were fed ad libitum a diet containing low protein (17% low crude protein (LP)) or standard protein (22% standard crude protein (SP)). Tissues were collected from 7- and 28-day-old chicks for RT-qPCR and histological analysis. In contrast to the LP diet, the SP diet suppressed the mRNA expression of ovarian growth markers essential for folliculogenesis in post-hatched chicks. Leptin injection did not influence ovarian growth markers but increased pituitary gonadotropin transcripts in 7-day-old chicks fed with LP diet. No treatment effects on follicle activation were noted on day 7, but by day 28, in ovo leptin-treated LP-fed chicks exhibited a higher percentage of primary follicles. These changes may have resulted from the early upregulation of genes by leptin during the first week, including pituitary gonadotropins and ovarian leptin receptors. The decline in ovarian growth markers with the SP diet highlights the importance of precise post-hatch protein calculation, which may influence future ovarian function in animals. These findings may contribute to future dietary strategies to enhance broiler reproduction.
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Affiliation(s)
- Sadequllah Ahmadi
- College of Agriculture, Ibaraki University, Ami 300-0393, Japan
- Faculty of Animal Science, Afghanistan National Agricultural Sciences and Technology University, Kandahar 3801, Afghanistan
| | - Yuta Nemoto
- College of Agriculture, Ibaraki University, Ami 300-0393, Japan
| | - Takeshi Ohkubo
- College of Agriculture, Ibaraki University, Ami 300-0393, Japan
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Sun C, Wu H, Xiao H, Nguepi Tsopmejio IS, Jin Z, Song H. Effect of dietary Flammulina velutipes (Curt.: Fr.) stem waste on ovarian follicles development in laying hens. ITALIAN JOURNAL OF ANIMAL SCIENCE 2023. [DOI: 10.1080/1828051x.2023.2178341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Affiliation(s)
- Chang Sun
- School of Life Science, Jilin Agricultural University, Jilin, P. R. China
| | - Haoyuan Wu
- School of Life Science, Jilin Agricultural University, Jilin, P. R. China
| | - Huanwei Xiao
- School of Life Science, Jilin Agricultural University, Jilin, P. R. China
| | | | - Zhouyu Jin
- School of Life Science, Jilin Agricultural University, Jilin, P. R. China
| | - Hui Song
- School of Life Science, Jilin Agricultural University, Jilin, P. R. China
- Engineering Research Center of the Chinese Ministry of Education for Bioreactor and Pharmaceutical Development, Changchun, P. R. China
- Engineering Research Center of Chinese Ministry of Education for Edible and Medicinal Fungi, Changchun, P. R. China
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Song X, Wang D, Zhou Y, Sun Y, Ao X, Hao R, Gao M, Xu Y, Li P, Jia C, Wei Z. Yolk precursor synthesis and deposition in hierarchical follicles and effect on egg production performance of hens. Poult Sci 2023; 102:102756. [PMID: 37236035 DOI: 10.1016/j.psj.2023.102756] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Egg production of hens is related to ovarian follicles development. The hierarchical follicle development accompanies the deposition of a large amount of yolk precursor. The aim of this study was to illustrate the effects of strain and age on yolk deposition and egg production. The experiment compared yolk synthesis, transport, and deposition in 3 groups of hens: one of a high-yield commercial hybrid laying breed (Jinghong No.1) in 2 stages (35 wk and 75 wk; JH35, JH75) and one of Chinese native breed (Lueyang Black-Boned chicken) at 35 wk (LY35). The results showed that the number of hierarchical follicles in JH35 and JH75 was significantly more than in LY35. At the same time, the yolk weight of the LY35 and JH75 was significantly higher than that of JH35. The expression of apolipoprotein A1 and apolipoprotein B genes in the liver of JH35 was higher than that of JH75. The expression of the very low-density lipoprotein receptor gene in the JH75 ovary was higher than that of the other 2 groups. The plasma concentrations of very low-density lipoprotein and vitellogenin were no significant difference among groups. The yolk deposition in hierarchical follicles based on the fat-soluble dyes measurement meant that the rate of yolk deposition of LY35 was lower than the other 2 groups. In most cases, the yolk deposition of JH75 was higher than that of the other groups, but the process showed greater fluctuation over time. These results meant that the rate and stability of yolk deposition played an essential role in affecting egg performance. In summary, both strain and age were related to egg production, but the 2 factors might impact yolk deposition and egg-laying performance differently. The egg performance may be affected by both yolk precursor synthesis and deposition for different strains, but it may be affected by yolk precursor deposition for the old laying hens.
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Affiliation(s)
- Xinru Song
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Dan Wang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yang Zhou
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yifang Sun
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Xianpei Ao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Ruidong Hao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Mengyu Gao
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Yijing Xu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Pengcheng Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Cunling Jia
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China
| | - Zehui Wei
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi 712100, China.
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Navara KJ, Graden K, Mendonça MT. Dietary yolk supplementation decreases rates of yolk deposition in Japanese quail. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2023; 339:63-73. [PMID: 36068670 PMCID: PMC10087823 DOI: 10.1002/jez.2653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Revised: 08/11/2022] [Accepted: 08/15/2022] [Indexed: 12/15/2022]
Abstract
Generation of egg yolk by birds requires the synthesis and deposition of large amounts of protein and lipid, and is often accompanied by the incorporation of additional physiological mediators. While there has been much work examining the relative quantities of yolk components, as well as potential adaptive patterns of their allocation, we still do not have a full understanding of what controls yolk formation and composition. Once ovarian follicles are recruited into the preovulatory hierarchy, the yolk is deposited in concentric rings, with one ring deposited per day. Previous studies have shown that there is substantial interspecific and intraspecific variation in the number of rings in yolks, and thus the number of days it took those yolks to grow. We hypothesized that the ability to grow follicles to maturity quickly is limited by the availability of materials to make yolk precursors in the female, either in body reserves or in dietary access. To test this, we supplemented the diets of Japanese quail with hard-boiled chicken yolk and examined the influences of treatment and female body condition on follicle growth rates. Contrary to predictions, females with higher body condition indices produced yolks that grew more slowly, and yolks from supplemented birds grew more slowly than controls. These results indicate that females can modulate the rate of yolk incorporation into developing follicles, and that an energy balance that is too high may not be optimal for the fast growth of developing ovarian follicles.
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Affiliation(s)
- Kristen J Navara
- Department of Poultry Science, The University of Georgia, Athens, Georgia, USA
| | - Kylie Graden
- Department of Poultry Science, The University of Georgia, Athens, Georgia, USA
| | - Mary T Mendonça
- Department of Biological Sciences, Auburn University, Auburn, Alabama, USA
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Liu J, Zhao X, Dai Z, Yang P, Chen R, Guo B, Lei M, Shi Z. A Possible Mechanism for Double-Yolked Eggs in the Early Stage of Egg-Laying in Zhedong White Goose-Function of IGF1 and LHR Signaling. Animals (Basel) 2022; 12:2964. [PMID: 36359088 PMCID: PMC9654830 DOI: 10.3390/ani12212964] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/14/2022] [Accepted: 10/26/2022] [Indexed: 05/06/2024] Open
Abstract
The cause of double-yolk (DY) egg production in birds is unclear, but it is related to body weight and adiposity. We explored the causes of the high proportion (up to 26%) of DY eggs in the first clutch of Zhedong white geese. We recorded the egg production of Zhedong white geese during the first egg-laying cycle and counted the proportion of DY eggs. We found that 30% of geese had 3 sets of double or triple follicles of the same diameter in the abdomen, which was close to the DY egg rate. In addition, the mRNA expression levels of the steroidogenic acute regulatory protein (StAR) and luteinizing hormone receptor (LHR) genes in granulosa cells were similar within the same set of follicles. Furthermore, the IGF1 concentration in geese that had at least 3 sets of follicles of the same diameter was significantly higher than that in birds with 0-1 set of follicles of the same diameter. Thus, we proposed that, in the first egg-laying stage of geese, high plasma concentrations of IGF1 stimulate the development of pre-hierarchal follicles and cause more than one follicle to be selected at the same time, mature at the same rate under the same gonadotrophin milieu, and ovulate at the same time to produce DY eggs.
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Affiliation(s)
- Jie Liu
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Xingfei Zhao
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Zichun Dai
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Pengxia Yang
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Rong Chen
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Binbin Guo
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Mingming Lei
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
| | - Zhendan Shi
- Institute of Animal Science, Jiangsu Academy of Agricultural Sciences, Nanjing 210014, China
- Key Laboratory of Crop and Livestock Integration, Ministry of Agriculture, Nanjing 210014, China
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Effects of Dietary Inclusion of β-Hydroxy-β-Methylbutyrate on Growth Performance, Fat Deposition, Bile Acid Metabolism, and Gut Microbiota Function in High-Fat and High-Cholesterol Diet-Challenged Layer Chickens. Curr Issues Mol Biol 2022; 44:3413-3427. [PMID: 36005131 PMCID: PMC9406763 DOI: 10.3390/cimb44080235] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/24/2022] [Accepted: 07/27/2022] [Indexed: 11/29/2022] Open
Abstract
Excessive lipid deposition in layer chickens due to inappropriate feeding adversely affects egg production; however, nutritional manipulation methods to deal with this issue are still limited. β-hydroxy-β-methylbutyrate (HMB), a metabolite of L-leucine, was recently reported as a lipid-lowering nutrient in mice and pigs, although its role in layers had not been investigated. Here, we employed high-fat and high-cholesterol diet (HFHCD)−challenged growing layers as an obese model to explore HMB function in the regulation of lipid metabolism and the potential mechanisms involved. We found that dietary supplementation with (0.05% or 0.10%) HMB significantly reduced HFHCD−induced bodyweight growth in layers, mainly due to reduction in abdominal fat deposition. Mechanistically, HMB supplementation enhanced hepatic bile acid synthesis from cholesterol through elevating expression of Cyp7a1, a gene coding a key enzyme in bile acid synthesis. Furthermore, 16S rRNA gene sequencing revealed that HMB supplementation remodeled the diversity and composition of the layers’ cecal microbiota, and the abundance of Bacteroidetes at the phylum level were especially affected. Correlation analysis further indicated a strong negative association between Bacteroidetes abundance and lipid metabolism−related parameters. Taken together, these data suggest that dietary HMB supplementation could improve abdominal fat deposition in layers, probably through modulating hepatic bile acid synthesis and gut microbiota function.
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8
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Arrazola A, Widowski TM, Torrey S. In Pursuit of a Better Broiler: Welfare and Productivity of Slower-growing Broiler Breeders during Lay. Poult Sci 2022; 101:101917. [PMID: 35679635 PMCID: PMC9178483 DOI: 10.1016/j.psj.2022.101917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 03/21/2022] [Accepted: 03/26/2022] [Indexed: 12/03/2022] Open
Abstract
Current commercial strains of broiler breeders display reproductive dysregulation when fed to satiety, but they can achieve optimal hatching egg production under feed restriction. However, chronic feed restriction in broiler breeders is a welfare concern due to physiological and behavioral signs of hunger, lack of satiety, and frustrated feeding motivation. The purpose of this study was to assess the welfare and productivity of slower-growing broiler breeders during lay. A total of 336 broiler breeders from 5 strains of slower-growing broiler breeders (3 female strains: 100 hens per strain, and 2 male strains: 12 and 24 roosters per strain) were kept in 12 identical pens throughout lay, 4 pens per combination of roosters and hens: A hens with Y roosters, B hens with Y roosters, and C hens with X roosters. According to guidelines, strain B and C hens and X roosters were slower growing strains and strain A hens and Y roosters were intermediate growing strains. Egg production was recorded daily, and settable eggs laid at 30, 40, and 50 wk of age were incubated to hatch. Growth rate, feed and water intake, and welfare indicators (feeding motivation, behavior, and physical assessment: feather coverage, foot and leg health, and keel bone status) were recorded during lay. Additionally, a subsample of 5 hens per pen was dissected for anatomical analyses. Laying rate started and peaked earlier in B hens than in A hens and remained above 70% in both strains, yielding high cumulative egg production (>165 eggs/hen) until 53 wk of age. Until 50 wk of age, fertility and hatched of fertile was high in slower growing broiler breeders, on average, above 95 and 80%, respectively. Compared to A hens, B and C hens had better feather coverage, lower feeding motivation, and lower daily water and feed intake. Results of this study suggest that slower growing broiler breeders show reduced signs of poor welfare and improved productivity during lay although susceptibility to obesity-related problems on laying rate may be strain-specific.
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Affiliation(s)
- Aitor Arrazola
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
| | - Tina M Widowski
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada
| | - Stephanie Torrey
- Department of Animal Biosciences, University of Guelph, Guelph, Ontario, Canada.
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Peng MJ, Huang T, Yang QL, Peng S, Jin YX, Wang XS. Dietary supplementation Eucommia ulmoides extract at high content served as a feed additive in the hens industry. Poult Sci 2022; 101:101650. [PMID: 35121531 PMCID: PMC8814652 DOI: 10.1016/j.psj.2021.101650] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/29/2021] [Accepted: 12/01/2021] [Indexed: 02/07/2023] Open
Abstract
Since numerous natural components in Eucommia ulmoides belong to phytoestrogen, its effect on hens production deserve more attention. To investigate the potential of E. ulmoides extract used as a feed additive, laying performance, egg quality, yolk cholesterol, yolk fatty acids, yolk fatty, yolk volatile components, albumen amino acids, plasma biochemical parameters, intestinal histology, and gut microbiota of hens (n = 120) were determined between basal diet (A) and dietary supplementation low (B), middle (C), and high (D) level E. ulmoides extract for 11 wk. When compared to A group, 2 percentage points elevation in laying rate was observed of D group. Significant up-regulation of immunoglobulin indexes and down-regulation of lipid related indexes in D group were also found if comparison with A group, suggesting that supplementation E. ulmoides extract at a relative high content benefited in immunity enhancing and blood-fat depressing. Meanwhile, obvious variation in albumen amino acids and yolk volatile compounds were inspected as dietary supplementation E. ulmoides extract, especially in D group, implied that the flavor of egg would change under high-level E. ulmoides extract treatment. Besides, villus height and villus height to crypt depth ratio of duodenum, jejunum, and ileum in D group were also significantly higher than that of in A group, indicating high-level E. ulmoides extract contributed to nutrient adsorption via intestinal histology changing. Moreover, the richness, diversity, and composition of gut microbiota in D group also significantly altered with a comparison of A group. These variation caused gut microbiota in D group major enriched in the KEGG pathway of insulin signing pathway, systemic lupus erythematosus, and bacterial invasion of epithelial cells, which were conducive to egg production elevation via facilitating nutrient adsorption, inflammation relieving, blood lipid amelioration, and insulin resistance alleviation. These results indicated that dietary supplementation E. ulmoides extract at high content could serve as a feed additive in the hens industry.
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Affiliation(s)
- Mi-Jun Peng
- Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Tao Huang
- Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Qiu-Ling Yang
- Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China
| | - Sheng Peng
- National & Local United Engineering Laboratory of Integrative Utilization Technology of Eucommia Ulmoides Jishou University, Jishou 427000, China
| | - Yu-Xin Jin
- Guangdong Zhongkangyuan Biotechnology Co., Ltd, Huizhou 516001, China
| | - Xue-Song Wang
- Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals, Institute of Analysis, Guangdong Academy of Sciences (China National Analytical Center, Guangzhou), Guangzhou 510070, China.
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Guo L, Kuang J, Zhuang Y, Jiang J, Shi Y, Huang C, Zhou C, Xu P, Liu P, Wu C, Hu G, Guo X. Serum Metabolomic Profiling to Reveal Potential Biomarkers for the Diagnosis of Fatty Liver Hemorrhagic Syndrome in Laying Hens. Front Physiol 2021; 12:590638. [PMID: 33633583 PMCID: PMC7900428 DOI: 10.3389/fphys.2021.590638] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Accepted: 01/04/2021] [Indexed: 01/12/2023] Open
Abstract
Fatty liver hemorrhage syndrome (FLHS), a nutritional and metabolic disease that frequently occurs in laying hens, causes serious losses to the poultry industry. Nowadays, the traditional clinical diagnosis of FLHS still has its limitations. Therefore, searching for some metabolic biomarkers and elucidating the metabolic pathway in vivo are useful for the diagnosis and prevention of FLHS. In the present study, a model of FLHS in laying hens induced by feeding a high-energy, low-protein diet was established. Gas chromatography time-of-flight mass spectrometry (GC-TOF-MS) was used to analyze the metabolites in serum at days 40 and 80. The result showed that, in total, 40 differential metabolites closely related to the occurrence and development of FLHS were screened and identified, which were mainly associated with lipid metabolism, amino acid metabolism, and energy metabolism pathway disorders. Further investigation of differential metabolites showed 10 potential biomarkers such as 3-hydroxybutyric acid, oleic acid, palmitoleic acid, and glutamate were possessed of high diagnostic values by analyzing receiver operating characteristic (ROC) curves. In conclusion, this study showed that the metabolomic method based on GC-TOF-MS can be used in the clinical diagnosis of FLHS in laying hens and provide potential biomarkers for early risk evaluation of FLHS and further insights into FLHS development.
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Affiliation(s)
- Lianying Guo
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Jun Kuang
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Yu Zhuang
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Jialin Jiang
- Jiangxi Biological Vocational College, Nanchang University, Nanchang, China
| | - Yan Shi
- School of Computer and Information Engineering, Jiangxi Agricultural University, Nanchang, China
| | - Cheng Huang
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Changming Zhou
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Puzhi Xu
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Ping Liu
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Cong Wu
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Guoliang Hu
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
| | - Xiaoquan Guo
- Jiangxi Provincial Key Laboratory for Animal Health, College of Animal Science and Technology, Jiangxi Agricultural University, Nanchang, China
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Assersohn K, Marshall AF, Morland F, Brekke P, Hemmings N. Why do eggs fail? Causes of hatching failure in threatened populations and consequences for conservation. Anim Conserv 2021. [DOI: 10.1111/acv.12674] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- K. Assersohn
- Department of Animal & Plant Sciences University of Sheffield Sheffield UK
| | - A. F. Marshall
- Institute of Zoology Zoological Society of London London UK
- Department of Genetics, Evolution and Environment University College London London UK
| | - F. Morland
- Department of Animal & Plant Sciences University of Sheffield Sheffield UK
- Institute of Zoology Zoological Society of London London UK
| | - P. Brekke
- Institute of Zoology Zoological Society of London London UK
| | - N. Hemmings
- Department of Animal & Plant Sciences University of Sheffield Sheffield UK
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Bédécarrats GY, Hanlon C, Tsutsui K. Gonadotropin Inhibitory Hormone and Its Receptor: Potential Key to the Integration and Coordination of Metabolic Status and Reproduction. Front Endocrinol (Lausanne) 2021; 12:781543. [PMID: 35095760 PMCID: PMC8792613 DOI: 10.3389/fendo.2021.781543] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Accepted: 12/02/2021] [Indexed: 12/18/2022] Open
Abstract
Since its discovery as a novel gonadotropin inhibitory peptide in 2000, the central and peripheral roles played by gonadotropin-inhibiting hormone (GnIH) have been significantly expanded. This is highlighted by the wide distribution of its receptor (GnIH-R) within the brain and throughout multiple peripheral organs and tissues. Furthermore, as GnIH is part of the wider RF-amide peptides family, many orthologues have been characterized across vertebrate species, and due to the promiscuity between ligands and receptors within this family, confusion over the nomenclature and function has arisen. In this review, we intend to first clarify the nomenclature, prevalence, and distribution of the GnIH-Rs, and by reviewing specific localization and ligand availability, we propose an integrative role for GnIH in the coordination of reproductive and metabolic processes. Specifically, we propose that GnIH participates in the central regulation of feed intake while modulating the impact of thyroid hormones and the stress axis to allow active reproduction to proceed depending on the availability of resources. Furthermore, beyond the central nervous system, we also propose a peripheral role for GnIH in the control of glucose and lipid metabolism at the level of the liver, pancreas, and adipose tissue. Taken together, evidence from the literature strongly suggests that, in fact, the inhibitory effect of GnIH on the reproductive axis is based on the integration of environmental cues and internal metabolic status.
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Affiliation(s)
- Grégoy Y. Bédécarrats
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
- *Correspondence: Grégoy Y. Bédécarrats,
| | - Charlene Hanlon
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Kazuyoshi Tsutsui
- Graduate School of Integrated Sciences for Life, Hiroshima University, Higashihiroshima, Japan
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13
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Groves PJ. Non-infectious diseases and laying hen welfare. ANIMAL PRODUCTION SCIENCE 2021. [DOI: 10.1071/an19680] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Numerous non-infectious conditions can affect commercial layer flocks. Some of these, such as conditions related to bodyweight, fatty liver haemorrhagic syndrome and effects of age are common to all production systems, while some are more common in cage systems (cage layer fatigue, feather pecking) or in cage-free systems (grass impaction, smothering, sunlight exposure, cannibalism, predation and injuries). Many of these conditions are covered in other papers and will not be dealt with in here. In the present paper, emphasis will be placed on grass impaction, smothering, effects of age, exposure to high light intensities, predation and conditions related to overweight/obesity issues. All of these are of considerable welfare concern for the industry. Grass impaction is a particular issue when hens are first released to the range areas and are exposed to vegetation or other fibrous materials. Mortality can be high with this problem. Smothering episodes can be generated by sudden flock disturbances, or from overcrowding in nests or related to nest-box design. Other less well understood triggers for smothering are poorly understood but have been linked to temperature variability, retreating shade in range areas on sunny days, dust-bathing opportunities and things that attract birds to certain points in the shed. The incidence of tumours increases with hen age. Most frequently encountered tumours are leiomyomas and adenocarcinomas, both of which are associated with the reproductive tract and are presumably linked to selection for higher and more sustained egg production. The incidence of these neoplastic conditions will need better understanding if increases in flock persistency of lay are desired. Light intensity is understood to be a possible trigger of increased aggressive behaviour and can lead to increased feather pecking and cannibalism. Predation, while frequently reported, is not regarded as a major cause of loss in most farming circumstances, although individual cases can be serious and it is a major cause of concern. Obesity is becoming more recognised as a problem in layer flocks as research begins to focus on its effects. Reduction in average flock weights will be an objective for further improvement in persistency of lay in the future.
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The relationship between the mTOR signaling pathway and ovarian aging in peak-phase and late-phase laying hens. Poult Sci 2020; 100:334-347. [PMID: 33357698 PMCID: PMC7772700 DOI: 10.1016/j.psj.2020.10.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Revised: 08/21/2020] [Accepted: 10/06/2020] [Indexed: 11/23/2022] Open
Abstract
The molecular mechanisms underlying reproductive aging in avian species are poorly understood. Previous studies have shown the importance of mechanistic target of rapamycin (mTOR) signaling pathway in aging. In this study, we investigated the relationship between the mTOR signaling pathway and ovarian aging in the peak phase and late phase of egg production in laying hens. The egg production rate and egg quality were tracked for 5 consecutive weeks in 30-week-old and 70-week-old Dawu Jinfeng hens (N = 30/group). During the peak phase (week 35) and late phase (week 75), antioxidant and immune indicators were detected by enzyme-linked immunosorbent assay, and mTOR signaling-related genes (CLIP-170, GRB10, LIPIN-1, ATG1, 4E-BP1, S6K, PKC, RHO, and SGK1) were detected in the follicles by quantitative reverse transcription-PCR technology. The protein expression of key genes (mTOR, PKC, 4EBP1) was evaluated by Western blot analysis. The egg production rate and the antioxidant indexes superoxide dismutase and glutathione peroxidase and the levels of total antioxidant capacity and immunoglobulins (IgM and IgG) were significantly higher at week 35 than those at week 75 (P < 0.01), while malondialdehyde levels were significantly lower (P < 0.01). At week 75, there were fewer follicles in the different stages of development than were detected at week 35. The number of white follicles (large and small) and primary follicles were significantly higher at week 75 than those detected at week 35 (P < 0.01). The mRNA expression of avTOR, CLIP-170, GRB10, LIPIN-1, 4E-BP1, S6K, RHO, and SGK genes in small white follicles (SWF), large white follicles (LWF), F3, F1, and ovary at week 75 was lower than that in the hens at week 35 (P < 0.05). The mRNA expression in small yellow follicle (SYF) was significantly higher than that at week 35 (P < 0.05), while the mRNA expression of ULK1 in SWF, LWF, F3, F1, and ovary at week 75 was higher than that of hens at week 35 (P<0.01), and SYF was lower (P < 0.05). Treatment of chicken granulosa cells with the mTOR agonist MHY1485 significantly enhanced granulocyte proliferation (P < 0.01) and inhibited apoptosis (P < 0.01) and significantly increased avTOR, S6K, 4E-BP1, and PKC gene expression (P < 0.01). The protein expression levels of mTOR, S6K, p-mTOR, and p-S6K were consistent with mRNA expression levels. The mTOR activity is age-specific, and a compensatory enhancement of the mTOR signaling cascade can regulate ovarian follicular development in aged laying hens.
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15
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Liu G, Zeng M, Li X, Rong Y, Hu Z, Zhang H, Liu X. Expression and analysis of ESR1, IGF-1, FSH, VLDLR, LRP, LH, PRLR genes in Pekin duck and Black Muscovy duck. Gene 2020; 769:145183. [PMID: 33007371 DOI: 10.1016/j.gene.2020.145183] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 09/12/2020] [Accepted: 09/23/2020] [Indexed: 12/27/2022]
Abstract
In order to explore the influence of egg-laying regulatory genes on egg production in ducks at different laying stages, Pekin duck and Black Muscovy duck were used in this study, including early laying stage (20-30 weeks old), peak laying period (31-48 weeks old) and late laying stage (49-66 weeks old). Relative quantitative RT-PCR was used to detect the mRNA transcription level of selected egg-laying regulatory genes in the ovary tissues of ducks at different laying stages. Study shows: during the laying period of Pekin duck, ESR1, LRP1, IGF-1 and LHR were involved in the regulation of egg-laying, and the high expression of LRP1 in the late stage could inhibit egg production. Still, the expression products of the other three genes showed promoting effect. During the laying period of Black Muscovy duck, FSH, VLDLR, IGF-1, PRLR, LHR and LRP1 participated in the regulation of egg-laying, in which the expression products of the first five genes could promote egg production, while LRP1 showed inhibitory effect. Through our experiments, these data will provide strong theoretical support for the breeding of Pekin duck and Black Muscovy duck.
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Affiliation(s)
- Guangyu Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Mingfei Zeng
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Xingxing Li
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Yu Rong
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Zhigang Hu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Huilin Zhang
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China
| | - Xiaolin Liu
- College of Animal Science and Technology, Northwest A&F University, Yangling, Shaanxi, PR China.
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16
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Clark KL, Talton OO, Ganesan S, Schulz LC, Keating AF. Developmental origins of ovarian disorder: impact of maternal lean gestational diabetes on the offspring ovarian proteome in mice†. Biol Reprod 2020; 101:771-781. [PMID: 31290541 DOI: 10.1093/biolre/ioz116] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Revised: 01/06/2019] [Accepted: 07/04/2019] [Indexed: 12/13/2022] Open
Abstract
Gestational diabetes mellitus (GDM) is an obstetric disorder affecting approximately 10% of pregnancies. The four high-fat, high-sucrose (HFHS) mouse model emulates GDM in lean women. Dams are fed a HFHS diet 1 week prior to mating and throughout gestation resulting in inadequate insulin response to glucose in mid-late pregnancy. The offspring of HFHS dams have increased adiposity, thus, we hypothesized that maternal metabolic alterations during lean GDM would compromise ovarian function in offspring both basally and in response to a control or HFHS diet in adulthood. Briefly, DLPL were lean dams and control diet pups; DLPH were lean dams and HFHS pups; DHPL were HFHS dams and control diet pups; and DHPH were HFHS dams and HFHS pups. A HFHS challenge in the absence of maternal GDM (DLPL vs. DLPH) increased 3 and decreased 30 ovarian proteins. Maternal GDM in the absence of a dietary stress (DLPL vs. DHPL) increased abundance of 4 proteins and decreased abundance of 85 proteins in the offspring ovary. Finally, 87 proteins increased, and 4 proteins decreased in offspring ovaries due to dietary challenge and exposure to maternal GDM in utero (DLPL vs. DHPH). Canopy FGF signaling regulator 2, deleted in azoospermia-associated protein 1, septin 7, and serine/arginine-rich splicing factor 2 were altered across multiple offspring groups. Together, these findings suggest a possible impact on fertility and oocyte quality in relation to GDM exposure in utero as well as in response to a western diet in later life.
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Affiliation(s)
- Kendra L Clark
- Department of Animal Science, Iowa State University, Ames, Iowa, USA
| | - Omonseigho O Talton
- Department of Obstetrics, Gynecology, and Women's Health, University of Missouri, Columbia, Missouri, USA
| | - Shanthi Ganesan
- Department of Animal Science, Iowa State University, Ames, Iowa, USA
| | - Laura C Schulz
- Department of Obstetrics, Gynecology, and Women's Health, University of Missouri, Columbia, Missouri, USA
| | - Aileen F Keating
- Department of Animal Science, Iowa State University, Ames, Iowa, USA
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Kim E, Wickramasuriya SS, Shin TK, Cho HM, Kim HB, Heo JM. Estimating total lysine requirement for optimised egg production of broiler breeder hens during the early-laying period. JOURNAL OF ANIMAL SCIENCE AND TECHNOLOGY 2020; 62:521-532. [PMID: 32803184 PMCID: PMC7416165 DOI: 10.5187/jast.2020.62.4.521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 05/26/2020] [Accepted: 06/02/2020] [Indexed: 11/20/2022]
Abstract
The production performance of broiler breeder hens in response to different
levels of total lysine during the early laying period was investigated. A total
of 126 Ross 308 parent stock hens were offered one of seven dietary treatments
formulating elevated contents of total lysine ranging from 0.55% to 0.79% (0.04
scale; 133 g of feed) from 23 to 29 weeks of age. Each treatment had six
replicates with three birds per pen. Body weight was recorded triweekly and eggs
were collected and weighted at 9:00 am daily. One hen from each pen was
euthanized to collect blood samples and visceral organs were harvested and
weighed. Egg production, egg weight and egg mass were lower (p
< 0.05) in hens offered a diet containing 0.55% total lysine compared to
those fed the diet containing higher total lysine. Hens offered a diet
containing 0.71%, 0.75%, and 0.79% total lysine had greater (p
= 0.008) egg production rate compared to those offered a diet containing lysine
less than 0.71%. The number of total eggs produced tended to be greater
(p = 0.083) in hens offered a diet containing 0.71 and
0.75% total lysine compared to the other treatments. The number of settable egg
production was higher (p < 0.001) in hens offered a diet
contacting 0.79% total lysine compared to those fed the diet containing lower
levels of total lysine. The relative weights of oviduct and ovary were lower
(p < 0.05) in hens offered a diet containing 0.59%
total lysine compared to the other treatments. No difference found in body
weight, the number of total eggs, double-yolk eggs and abnormal shell eggs among
the treatments. The urea nitrogen, estradiol-17 beta and progesterone in plasma
were not affected by treatments. Based on linear- and quadratic-plateau models,
total lysine requirements for egg production, settable egg production and egg
mass at the early laying period were to be 0.73%, 0.77%, and 0.71%,
respectively. Modern broiler breeder hens likely require higher total lysine
than NRC recommendation in a diet for enhancing productivity during the
early-laying period.
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Affiliation(s)
- Eunjoo Kim
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea.,School of Environmental and Rural Science, University of New England, Armidale, NSW 2351, Australia
| | | | - Taeg Kyun Shin
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea
| | - Hyun Min Cho
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea
| | - Hyeun Bum Kim
- Department of Animal Resources Science, Dankook University, Cheonan 31116, Korea
| | - Jung Min Heo
- Department of Animal Science and Biotechnology, Chungnam National University, Daejeon 34134, Korea
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18
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Hanlon C, Ramachandran R, Zuidhof MJ, Bédécarrats GY. Should I Lay or Should I Grow: Photoperiodic Versus Metabolic Cues in Chickens. Front Physiol 2020; 11:707. [PMID: 32670092 PMCID: PMC7332832 DOI: 10.3389/fphys.2020.00707] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Accepted: 05/29/2020] [Indexed: 12/11/2022] Open
Abstract
While photoperiod has been generally accepted as the primary if not the exclusive cue to stimulate reproduction in photoperiodic breeders such as the laying hen, current knowledge suggests that metabolism, and/or body composition can also play an influential role to control the hypothalamic-pituitary gonadal (HPG)-axis. This review thus intends to first describe how photoperiodic and metabolic cues can impact the HPG axis, then explore and propose potential common pathways and mechanisms through which both cues could be integrated. Photostimulation refers to a perceived increase in day-length resulting in the stimulation of the HPG. While photoreceptors are present in the retina of the eye and the pineal gland, it is the deep brain photoreceptors (DBPs) located in the hypothalamus that have been identified as the potential mediators of photostimulation, including melanopsin (OPN4), neuropsin (OPN5), and vertebrate-ancient opsin (VA-Opsin). Here, we present the current state of knowledge surrounding these DBPs, along with their individual and relative importance and, their possible downstream mechanisms of action to initiate the activation of the HPG axis. On the metabolic side, specific attention is placed on the hypothalamic integration of appetite control with the stimulatory (Gonadotropin Releasing Hormone; GnRH) and inhibitory (Gonadotropin Inhibitory Hormone; GnIH) neuropeptides involved in the control of the HPG axis. Specifically, the impact of orexigenic peptides agouti-related peptide (AgRP), and neuropeptide Y (NPY), as well as the anorexigenic peptides pro-opiomelanocortin (POMC), and cocaine-and amphetamine regulated transcript (CART) is reviewed. Furthermore, beyond hypothalamic control, several metabolic factors involved in the control of body weight and composition are also presented as possible modulators of reproduction at all three levels of the HPG axis. These include peroxisome proliferator-activated receptor gamma (PPAR-γ) for its impact in liver metabolism during the switch from growth to reproduction, adiponectin as a potential modulator of ovarian development and follicular maturation, as well as growth hormone (GH), and leptin (LEP).
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Affiliation(s)
- Charlene Hanlon
- Department of Animal Biosciences, University of Guelph, Guelph, ON, Canada
| | - Ramesh Ramachandran
- Center for Reproductive Biology and Health, Department of Animal Science, Pennsylvania State University, University Park, PA, United States
| | - Martin J. Zuidhof
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, AB, Canada
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19
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Sirotkin AV, Makarevich AV, Kubovicova E, Medvedova M, Kolesarova A, Harrath AH. Relationship between body conditions and environmental contaminants in bovine ovarian cells. Theriogenology 2020; 147:77-84. [PMID: 32120185 DOI: 10.1016/j.theriogenology.2020.02.022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2019] [Revised: 01/20/2020] [Accepted: 02/16/2020] [Indexed: 11/25/2022]
Abstract
The effect of body condition and environmental contaminants on reproductive processes is known; however, it is not known whether basic ovarian cell functions and their response to these contaminants depend on body condition. This study aimed to understand the interrelationships between body conditions and environmental contaminants on ovarian cells. For this purpose, we compared ovarian granulosa cells isolated from cows with an emaciation tendency (body condition score, BCS2 on a scale from 1 to 5) and cows with average body condition (BCS3); proliferation, apoptosis, secretory activity and the response to environmental contaminants were all assessed in the cells. In the 1st series of experiments, ovarian granulosa cells isolated from BCS2 and BCS3 cows were cultured with and without benzene, xylene, and toluene (0.1%). The accumulation of nuclear and cytoplasmic markers of apoptosis (p53 and bax, respectively), a proliferation marker (PCNA), progesterone (P4), and insulin-like growth factor I (IGF-I) was evaluated by Western blot and radioimmunoassay (RIA) experiments. In the 2nd series of experiments, the groups of granulosa cells were cultured with and without mycotoxine deoxynivalenol (DON, 0, 10, 100, or 1000 ng/ml). The secretion of P4 and testosterone (T) was measured by RIA. In comparison to cells from BCS2 animals, ovarian cells isolated from BCS3 cows accumulated higher levels of bax and PCNA but not p53, and they secreted higher amounts of IGF-I but not P4 or T. In cells from BCS2 animals, benzene and xylene promoted p53 accumulation, and toluene reduced the accumulation. In the BCS2 group, all treatments promoted bax and PCNA expression. However, in cells from BCS3 animals, all environmental pollutants inhibited p53, toluene inhibited PCNA but not bax, and xylene did not affect the expression of proliferation or apoptosis markers. In the BCS2 group, P4 was inhibited by xylene, and IGF-I was stimulated by xylene but not by benzene or toluene. Low-dose exposure to DON (10 ng/ml) promoted P4 release from cells from both BCS2 and BCS3 animals, but high-dose exposure to DON (1000 ng/ml) reduced P4 secretion from the cells from BCS2 animals but not from the cells from BCS3 animals. The release of T was inhibited by high-dose exposure to DON (1000 ng/ml), irrespective of the BCS. An emaciation tendency reduces proliferation, apoptosis, and IGF-I release, and it induces or reverses the action of environmental contaminants on ovarian functions. Taken together, these observations demonstrate the effect of body condition and the direct influence of environmental contaminants on basic bovine ovarian functions. Furthermore, they demonstrate for the first time that the response of ovarian cells to environmental contaminants can be regulated by cow body condition.
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Affiliation(s)
- Alexander V Sirotkin
- Dept. Zoology and Anthropology, Constantine the Philosopher University, 949 74, Nitra, Slovakia; National Agricultural and Food Centre (NPPC), Research Institute for Animal Production Nitra, 949 59, Lužianky-near-Nitra, Slovakia.
| | - Alexander V Makarevich
- National Agricultural and Food Centre (NPPC), Research Institute for Animal Production Nitra, 949 59, Lužianky-near-Nitra, Slovakia.
| | - Elena Kubovicova
- National Agricultural and Food Centre (NPPC), Research Institute for Animal Production Nitra, 949 59, Lužianky-near-Nitra, Slovakia.
| | - Marina Medvedova
- Department of Animal Physiology, Slovak University of Agriculture, Nitra, Slovakia.
| | - Adriana Kolesarova
- Department of Animal Physiology, Slovak University of Agriculture, Nitra, Slovakia.
| | - Abdel Halim Harrath
- Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia.
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20
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Sharideh H, Zhandi M, Zeinoaldini S, Zaghari M, Sadeghi M. The effect of dietary coenzyme Q10 on plasma metabolites and hepatic gene expression in broiler breeder hens. Br Poult Sci 2020; 61:281-286. [PMID: 31973572 DOI: 10.1080/00071668.2020.1720908] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
1. This study was performed to evaluate the effects of dietary supplementation of coenzyme Q10 (CoQ10) on laying rate, body weight, plasma metabolites and some liver gene expression in broiler breeder hens. 2. A total of 128 broiler breeder hens (Arbor Acres Plus, 47 weeks of age) were randomly distributed to four dietary groups supplemented with different levels of CoQ10 (0, 300, 600 or 900 mg/kg diet) with four replicates of eight hens each. During 47-54 weeks of age, laying rate, egg mass and body weight were recorded weekly. To assay plasma biochemical indicators, blood samples were collected at 54 weeks of age. At the end of the experiment, for evaluating the abdominal fat weight, liver weight and expression of the adiponectin and proliferator-activated receptor-α (PPAR-α) genes in the liver, eight hens per treatment were selected, weighed and humanely killed by decapitation. 3. Dietary supplementation of CoQ10 linearly decreased abdominal fat weight, alanine aminotransferase (ALT) and aspartate aminotransferase (AST) activities by increased levels of CoQ10. The plasma levels of glucose, cholesterol and alkaline phosphatase (ALP) activity were quadratically decreased by increased levels of CoQ10. The best plasma levels of glucose, cholesterol and ALP activity were estimated at 562.5, 633.3 and 517.8 mg CoQ10/kg diet, respectively. Adiponectin and PPARα gene expression exhibited a linear increased by increased levels of CoQ10. 4. In conclusion, addition of CoQ10 to the diet influenced lipid metabolism and expression of the adiponectin and PPAR-α genes, which might be partially due to the improvement in mitochondrial metabolism and energy production. However, further studies are necessary to determine the effects of CoQ10 on these indicators in broiler breeder hens during ageing.
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Affiliation(s)
- H Sharideh
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
| | - M Zhandi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
| | - S Zeinoaldini
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
| | - M Zaghari
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
| | - M Sadeghi
- Department of Animal Science, College of Agriculture and Natural Resources, University of Tehran , Karaj, Iran
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21
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van der Klein SA, Zuidhof MJ, Bédécarrats GY. Diurnal and seasonal dynamics affecting egg production in meat chickens: A review of mechanisms associated with reproductive dysregulation. Anim Reprod Sci 2020; 213:106257. [DOI: 10.1016/j.anireprosci.2019.106257] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/30/2019] [Accepted: 12/13/2019] [Indexed: 01/16/2023]
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22
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Arrazola A, Widowski TM, Guerin MT, Kiarie EG, Torrey S. The effect of alternative feeding strategies for broiler breeder pullets: 2. Welfare and performance during lay. Poult Sci 2019; 98:6205-6216. [PMID: 31392331 PMCID: PMC6870554 DOI: 10.3382/ps/pez447] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2019] [Accepted: 07/31/2019] [Indexed: 11/30/2022] Open
Abstract
Feeding broiler breeders to satiety has negative consequences on their health and reproduction. Alternative feeding strategies during rearing can improve welfare, although their implications during lay are not well understood. The objective was to examine the effect of rearing feeding treatments on the reproductive performance and feeding behavior of broiler breeders under simulated commercial conditions. At 3 wk of age, 1,680 Ross 308 pullets were allocated to 24 pens under 1 of 4 isocaloric treatments: 1) daily control diet; 2) daily alternative diet (40% soybean hulls and 1 to 5% calcium propionate); 3) 4/3 control diet (4 on-feed days, 3 non-consecutive off-feed days per week); and 4) graduated control diet. Feeding frequency of the graduated treatment varied with age and finished on a daily basis. At 23 wk of age, group sizes were adjusted to 40 hens, and 5 mature Yield Plus Males roosters were introduced to each pen. Pens were under the same daily feeding management and same diet during lay. The performance of broiler breeders (growth rate, body weight uniformity, and reproductive performance) was determined until 64 wk of age. At the end of lay, feeding motivation was examined with a feed intake test and a compensatory feeding test. Data were analyzed using linear mixed regression models, with pen nested in the models and age as a repeated measure. The laying rate of hens reared on the graduated treatment decreased slower compared to control hens, resulting in a higher cumulative egg production (178.2 ± 3.8 eggs/hen) than control hens (165.2 ± 3.8 eggs/hen, P < 0.01) by 64 wk of age. Hens reared on non-daily feeding treatments laid lighter eggs with relatively heavier yolks and had higher feed intake at the end of lay than hens fed daily during rearing (P = 0.02). In conclusion, rearing feeding treatments impacted the growth rate and body weight uniformity during lay, feeding motivation at the end of lay, and the laying rate and hatchability depending on hens' age.
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Affiliation(s)
- A Arrazola
- Department of Animal Biosciences, Ontario Agricultural College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - T M Widowski
- Department of Animal Biosciences, Ontario Agricultural College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - M T Guerin
- Department of Population Medicine, Ontario Veterinary College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - E G Kiarie
- Department of Animal Biosciences, Ontario Agricultural College, University of Guelph, Guelph, ON N1G 2W1, Canada
| | - S Torrey
- Department of Animal Biosciences, Ontario Agricultural College, University of Guelph, Guelph, ON N1G 2W1, Canada
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23
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Dietary Supplementation of 25-Hydroxycholecalciferol Improves Livability in Broiler Breeder Hens-Amelioration of Cardiac Pathogenesis and Hepatopathology. Animals (Basel) 2019; 9:ani9100770. [PMID: 31597394 PMCID: PMC6826734 DOI: 10.3390/ani9100770] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/29/2019] [Accepted: 10/02/2019] [Indexed: 12/14/2022] Open
Abstract
Simple Summary Broiler breeder hens with higher bodyweights (BW) and fat accumulation suffered sudden death earlier in conjunction with compromised heart rhythms and over-ventilation. Pathological cardiac hypertrophy and functional failure are causative factors of sudden death with exacerbation by hepatopathology. Dietary 25-OH-D3 supplementation improved hen’s livability and heart health by ameliorating systemic hypoxia, acidosis, and cardiac pathological hypertrophy through calcineurin-NFAT4c signaling and MHC-β expression in association with reduced hepatic steatosis and fibrosis. Abstract A supplement of 69 μg 25-hydroxycholecalciferol (25-OH-D3)/kg feed increased livability in feed restricted (R-hens) broiler breeder hens by 9.9% and by 65.6% in hens allowed ad libitum feed intake (Ad-hens) in a feeding trial from age 26–60 weeks. Hens with higher bodyweight and/or adiposity suffered sudden death (SD) earlier in conjunction with compromised heart rhythms and over-ventilation. In the study with the same flock of hens, we demonstrate that 25-OH-D3 improved hen’s livability and heart health by ameliorating systemic hypoxia, acidosis, and cardiac pathological hypertrophy through calcineurin-NFAT4c signaling and MHC-β expression in association with reduced plasma triacylglycerol and hepatic steatosis and fibrosis (p < 0.05). In contrast to live hens sampled at 29, 35, and 47 weeks, SD hens exhibited severe cardiac hypertrophy that was either progressive (Ad-groups) or stable (R-groups). Actual and relative liver weights in SD hens from any group declined as the study progressed. Heart weight correlated significantly to total and relative liver weights in SD-hens of both R- and Ad-groups. In contrast to normal counterparts sampled at 35 and 47 weeks, R-hens exhibiting cardiac hypertrophy experienced severe hypoxia and acidosis, with increased bodyweight, absolute and relative weights of liver and heart, hepatic and plasma triacylglycerol content, and cardiac arrhythmia (p < 0.05). The present results demonstrate that pathological cardiac hypertrophy and functional failure are causative factors of SD and this pathogenic progression is accelerated by hepatopathology, particularly during the early age. Increased feed efficiency with rapid gains in BW and fat increase hens’ risk for hypoxia, irreversible cardiac hypertrophy, and arrhythmias that cause functional compromise and SD. Additional supplementation of 69 mg/kg feed of 25-OH-D3 to the basal diet is effective to ameliorate cardiac pathogenesis and prevent SD in broiler breeder hens.
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Denatonium Benzoate-Induces Oxidative Stress in the Heart and Kidney of Chinese Fast Yellow Chickens by Regulating Apoptosis, Autophagy, Antioxidative Activities and Bitter Taste Receptor Gene Expressions. Animals (Basel) 2019; 9:ani9090701. [PMID: 31546822 PMCID: PMC6770773 DOI: 10.3390/ani9090701] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2019] [Revised: 09/09/2019] [Accepted: 09/09/2019] [Indexed: 12/16/2022] Open
Abstract
Simple Summary Denatonium benzoate is a strong bitter taste receptor agonist, extensively used for its activation of different cell pathways. Taste signals have been associated to food recognition and avoidance, and bitter taste provokes an aversive reaction and is assumed to protect chickens from consuming poisons and harmful toxic substances. The results of the study revealed that dietary supplementation with medium and high doses of denatonium benzoate damaged the epithelial cells of the heart and kidneys by inducing apoptosis and autophagy and reduced the growth of chickens, respectively. However, mRNA expressions of bitter taste receptors, downstream signaling effector genes, apoptosis-, autophagy- and antioxidant-related genes were higher on day 7, while these expressions were subsequently decreased on day-28 in the heart and kidney of Chinese Fast Yellow chickens in a dose-response manner. Abstract The sense of taste which tells us which prospective foods are nutritious, poisonous and harmful is essential for the life of the organisms. Denatonium benzoate (DB) is a bitter taste agonist known for its activation of bitter taste receptors in different cells. The aim of the current study was to investigate the mRNA expressions of bitter taste, downstream signaling effectors, apoptosis-, autophagy- and antioxidant-related genes and effector signaling pathways in the heart/kidney of chickens after DB dietary exposure. We randomly assigned 240, 1-day-old Chinese Fast Yellow chicks into four groups with five replicates of 12 chicks and studied them for 28 consecutive days. The dietary treatments consisted of basal diet and feed containing DB (5, 20 and 100 mg/kg). The results revealed that dietary DB impaired (p < 0.05) the growth performance of the chickens. Haemotoxylin and eosin staining and TUNEL assays confirmed that medium and high doses of DB damaged the epithelial cells of heart/kidney and induced apoptosis and autophagy. Remarkably, the results of RT-PCR and qRT-PCR indicated that different doses of DB gradually increased (p < 0.05) mRNA expressions of bitter taste, signaling effectors, apoptosis-, autophagy- and antioxidant- related genes on day 7 in a dose-response manner, while, these expressions were decreased (p < 0.05) subsequently by day-28 but exceptional higher (P < 0.05) expressions were observed in the high-dose DB groups of chickens. In conclusion, DB exerts adverse effects on the heart/kidney of chickens in a dose-response manner via damaging the epithelium of the heart/kidney by inducing apoptosis, autophagy associated with bitter taste and effector gene expressions. Correlation analyses for apoptosis/autophagy showed agonistic relationships. Our data provide a novel perspective for understanding the interaction of bitter taste, apoptosis, autophagy and antioxidative genes with bitter taste strong activators in the heart/kidney of chicken. These insights might help the feed industries and pave the way toward innovative directions in chicken husbandry.
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Wei Z, Li P, Huang S, Lkhagvagarav P, Zhu M, Liang C, Jia C. Identification of key genes and molecular mechanisms associated with low egg production of broiler breeder hens in ad libitum. BMC Genomics 2019; 20:408. [PMID: 31117935 PMCID: PMC6532148 DOI: 10.1186/s12864-019-5801-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Accepted: 05/14/2019] [Indexed: 01/06/2023] Open
Abstract
Background Overfeeding reduces laying performance in broiler breeder hens, which is associated with obesity, hepatic steatosis and systemic inflammation. To unravel the underlying mechanisms governing the effect of feeding regimes on energy metabolism and egg production, a transcriptomics approach was carried out for screening differentially expressed genes (DEGs) in ovary, liver and adipose tissues of broiler chickens under ad libitum and restricted feeding. Results It showed that 289, 388 and 204 DEGs were identified in the adipose, liver and ovary, respectively. These DEGs were significantly enriched in phagosome pathway, lipid transport, activity and nutrient reservoir activity in ovary; steroid hormone biosynthesis and metabolism of xenobiotics by cytochrome P450 pathways in adipose tissue; and the metabolic pathways, peroxisome proliferator-activated receptor (PPAR) and Jak-STAT signaling pathway in liver. Estrogen receptor 1, identified as one of important hubs by constructing PPI network, was up-regulated in ad libitum group, which would make more apolipoproteins be transferred to ovary. Conclusions High expression of VTGs, APOB, CYBB and CTSS in ovary would induce excess lipid deposit, oxidative stress and potential damage to ovulation. Our results contribute to understanding effects of feeding regimes on metabolic regulation during egg production of broiler breeder hens and also provide new evidence of metabolic regulation from integrated multi-tissue processes. Electronic supplementary material The online version of this article (10.1186/s12864-019-5801-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zehui Wei
- College of Animal Science and Technology, Northwest A&F University, 22# Xinong Road, Yangling, Shaanxi, China
| | - Pengcheng Li
- College of Animal Science and Technology, Northwest A&F University, 22# Xinong Road, Yangling, Shaanxi, China
| | - Sijia Huang
- College of Animal Science and Technology, Northwest A&F University, 22# Xinong Road, Yangling, Shaanxi, China
| | - Purevsuren Lkhagvagarav
- College of Animal Science and Technology, Northwest A&F University, 22# Xinong Road, Yangling, Shaanxi, China
| | - Mengqi Zhu
- College of Animal Science and Technology, Northwest A&F University, 22# Xinong Road, Yangling, Shaanxi, China
| | - Chuanyu Liang
- College of Animal Science and Technology, Northwest A&F University, 22# Xinong Road, Yangling, Shaanxi, China
| | - Cunling Jia
- College of Animal Science and Technology, Northwest A&F University, 22# Xinong Road, Yangling, Shaanxi, China.
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Naundrup Thøfner IC, Poulsen LL, Bisgaard M, Christensen H, Olsen RH, Christensen JP. Longitudinal Study on Causes of Mortality in Danish Broiler Breeders. Avian Dis 2019; 63:400-410. [DOI: 10.1637/12006-113018-reg.1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Accepted: 03/20/2019] [Indexed: 11/05/2022]
Affiliation(s)
- Ida Cecilie Naundrup Thøfner
- University of Copenhagen, Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, Stigbøjlen 4, DK-1870 Frederiksberg, Denmark
| | - Louise Ladefoged Poulsen
- University of Copenhagen, Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, Stigbøjlen 4, DK-1870 Frederiksberg, Denmark
| | - Magne Bisgaard
- Bisgaard Consulting, Horsevænget 40, DK-4130, Viby Sjælland, Denmark
| | - Henrik Christensen
- University of Copenhagen, Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, Stigbøjlen 4, DK-1870 Frederiksberg, Denmark
| | - Rikke Heidemann Olsen
- University of Copenhagen, Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, Stigbøjlen 4, DK-1870 Frederiksberg, Denmark
| | - Jens Peter Christensen
- University of Copenhagen, Department of Veterinary and Animal Science, Faculty of Health and Medical Sciences, Stigbøjlen 4, DK-1870 Frederiksberg, Denmark
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Zhang X, Cheng B, Liu C, Du Z, Zhang H, Wang N, Wu M, Li Y, Cao Z, Li H. A Novel Regulator of Preadipocyte Differentiation, Transcription Factor TCF21, Functions Partially Through Promoting LPL Expression. Front Physiol 2019; 10:458. [PMID: 31065241 PMCID: PMC6489524 DOI: 10.3389/fphys.2019.00458] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2019] [Accepted: 04/02/2019] [Indexed: 11/13/2022] Open
Abstract
The transcription factor TCF21 has been previously shown to be specifically expressed in white preadipocytes in mice. However, the exact biological function of TCF21 in the context of adipogenesis remains unknown. In the current study, we used chicken lines selected based on their abdominal fat content, and observed a significant decrease in TCF21 mRNA and protein levels in the abdominal fat of lean broilers relative to fat broilers. Moreover, TCF21 expression increased throughout preadipocyte differentiation in vitro. We also found that TCF21 knockdown and over-expression attenuated and promoted preadipocyte differentiation, respectively, as evidenced by appropriate changes in lipid droplet accumulation and altered expressions of C/EBPa, LPL, and A-FABP. Additional chromatin immunoprecipitation analyses and luciferase assays demonstrated that TCF21 promotes the transcription of LPL by directly binding to the E-box motif in the LPL promoter. Together, these results show that TCF21 is a novel regulator of preadipocyte differentiation, in part by directly promoting LPL expression.
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Affiliation(s)
- Xinyang Zhang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Bohan Cheng
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Chang Liu
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Zhiqiang Du
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Hui Zhang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Ning Wang
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Mengqi Wu
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Yumao Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Zhiping Cao
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
| | - Hui Li
- Key Laboratory of Chicken Genetics and Breeding, Ministry of Agriculture and Rural Affairs, Harbin, China.,Key Laboratory of Animal Genetics, Breeding and Reproduction, Education Department of Heilongjiang Province, Harbin, China.,College of Animal Science and Technology, Northeast Agricultural University, Harbin, China
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HAO E, Chen H, Ge S, Huang R. Effect of Feed Restriction and Photoperiod on Reproduction and LEPR, MELR mRNA Expression of Layers. BRAZILIAN JOURNAL OF POULTRY SCIENCE 2019. [DOI: 10.1590/1806-9061-2019-1042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- E HAO
- Agricultural University of Hebei, China
| | - H Chen
- Agricultural University of Hebei, China
| | - S Ge
- Luannan County Vocational Education Center of Hebei province, China
| | - R Huang
- Agricultural University of Hebei, China
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Polycystic Ovarian Condition May Be a Risk Factor for Ovarian Tumor Development in the Laying Hen Model of Spontaneous Ovarian Cancer. J Immunol Res 2018; 2018:2590910. [PMID: 30596106 PMCID: PMC6286744 DOI: 10.1155/2018/2590910] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 08/26/2018] [Accepted: 09/17/2018] [Indexed: 12/28/2022] Open
Abstract
Chronic inflammation and long-standing oxidative stress are potential predisposing factors for developing malignancies, including ovarian cancer (OVCA). Information on the association of ovarian chronic abnormal conditions, including polycystic ovarian syndrome (PCOS), with the development of OVCA is unknown. The goal of this study was to examine if polycystic ovarian conditions are associated with OVCA development. In the exploratory study, 3-4-year-old laying hens were randomly selected and examined for the presence of polycystic ovaries with cancer (PCOC). In the prospective study, hens were monitored by ultrasound scanning to detect the incidence of a polycystic ovaries and subsequent development of OVCA. Tissues from normal ovaries and PCOC were examined for macrophage infiltration, expression of interleukin-16, and superoxide dismutase 2. The exploratory study detected spontaneous PCOC at early and late stages in hens. PCOC in hens were accompanied with influx of macrophages (17.33 ± 2.26 in PCOC at the early stage and 24.24 ± 2.5 in PCOC at the late stage in 20 mm2 areas of tissue as compared with 6.77 ± 1.58 in normal hens). Expression of interleukin-16 was more than 2.5-fold higher and superoxide dismutase 2 was approximately 3-fold higher in PCOC hens than normal hens. The prospective study showed the development of OVCA in some hens with polycystic ovarian condition (PCO). PCOC development in hens was associated with chronic inflammation in the ovary. Laying hens may represent a potential model for the study of spontaneous PCOS and its long-term risk of PCOC development.
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Chen CY, Huang YF, Ko YJ, Liu YJ, Chen YH, Walzem RL, Chen SE. Obesity-associated cardiac pathogenesis in broiler breeder hens: Development of metabolic cardiomyopathy. Poult Sci 2018; 96:2438-2446. [PMID: 28339731 DOI: 10.3382/ps/pex016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 01/08/2017] [Indexed: 01/15/2023] Open
Abstract
Feed intake is typically restricted (R) in broiler hens to avoid obesity and improve egg production and livability. To determine whether improved heart health contributes to improved livability, fully adult 45-week-old R hens were allowed to consume feed to appetite (ad libitum; AL) up to 10 wk (70 d). Mortality, contractile functions, and morphology at 70 d, and measurements of cardiac hypertrophic remodeling at 7 d and 21 d were made and compared between R and AL hens. Outcomes for cardiac electrophysiology and mortality, reported separately, found increased mortality in AL hens in association with cardiac pathological hypertrophy and contractile dysfunction. The present study aimed to delineate metabolic cardiomyopathies underlying the etiology of obesity-associated cardiac pathology. Metabolic measurements were made in hens continued on R rations or assigned to AL feeding after 7 d and 21 days. AL feeding increased plasma insulin, glucose, and non-esterified fatty acid (NEFA) concentrations by 21 d (P < 0.05). Metabolic cardiomyopathy in AL-hens was confirmed by cardiac triacylglycerol (TG) and ceramide accumulation consistent with up-regulation of related enzyme gene expressions, and by increased indices of oxidation stress (P < 0.05). In contrast to R hens, cardiac pyruvate dehydrogenase (PDH) activity and glucose transporter (GLUT) gene expressions increased progressively while carnitine palmitoyltransferase-1 (CPT-1) transcript levels in AL hens declined from 7 d to 21 d (P < 0.05), reflecting a shift from an oxidative to a more glycolytic metabolism, a typical metabolic derangement associated with cardiac hypertrophic remodeling. Cardiac pathogenesis in AL hens was further indicated by increased leukocyte infiltrates, interleukin-1β (IL-1β) and IL-6 production, cellular apoptosis, interstitial fibrosis, and expression of the heart failure marker myosin heavy chain (MHC-β; cardiac muscle beta) (P < 0.05). Results support the conclusion that diabetic conditions, cardiac inflammation and lipotoxic metabolic derangements act as pathological cues to trigger pathogenic changes along cardiac hypertrophy in AL hens.
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Affiliation(s)
- C Y Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y F Huang
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y J Ko
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y J Liu
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y H Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - R L Walzem
- Department of Poultry Science, Texas A&M University, College Station
| | - S E Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan.,Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan.,Center for the Integrative and Evolutionary Galliformes Genomics, iEGG Center, National Chung Hsing University, Taiwan
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Chen CY, Lin HY, Chen YW, Ko YJ, Liu YJ, Chen YH, Walzem RL, Chen SE. Obesity-associated cardiac pathogenesis in broiler breeder hens: Pathological adaption of cardiac hypertrophy. Poult Sci 2018; 96:2428-2437. [PMID: 28339908 DOI: 10.3382/ps/pex015] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Accepted: 01/08/2017] [Indexed: 12/25/2022] Open
Abstract
Broiler hens consuming feed to appetite (ad libitum; AL) show increased mortality. Feed restriction (R) typically improves reproductive performance and livability of hens. Rapidly growing broilers can exhibit increased mortality due to cardiac insufficiency but it is unknown whether the increased mortality of non-R broiler hens is also due to cardiac compromise. To assess cardiac growth and physiology in fully mature birds, 45-week-old hens were either continued on R rations or assigned to AL feeding for 7 or 21 days. AL hens exhibited increased bodyweight, adiposity, absolute and relative heart weight, ventricular hypertrophy, and cardiac protein/DNA ratio by d 21 (P < 0.05). Increased heart weights due to hypertrophic growth was attributed to enhanced IGF-1-Akt-FoxO1 signaling and its downstream target, translation initiation factor 4E-BP1 in conjunction with down-regulation of ubiquitin ligase atrogin-1/MAFbx (P < 0.05). Reduced activation of cardiac AMPK and downstream activation of ACC-1 in parallel with increased cardiac nitric oxide levels, calcineurin activity, and MAPK activation in AL hens (P < 0.05) suggested that metabolic derangement develops along the cardiovascular remodeling. These indictors of cardiac maladaptive hypertrophic growth were further supported by uregulation of heart failure markers, BNP and MHC-β (P < 0.05). Hens allowed AL feeding for 70 d exhibited a higher incidence of mortality (40% vs. 10%) in association with ascites, pericardial effusion, and ventricle dilation. A higher incidence of irregular ECG patterns and rhythmicity consistent with persistently elevated systolic blood pressure and ventricle fibrosis were observed in AL hens (P < 0.05). These observations support the conclusion that AL feeding in broiler hens results in maladaptive cardiac hypertrophy that progresses to overt pathogenesis in contractility and thereby increases mortality. Feed restriction provides clear physiological benefit to heart function of adult broiler hens.
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Affiliation(s)
- C Y Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - H Y Lin
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y W Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y J Ko
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y J Liu
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Y H Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - R L Walzem
- Center for the Integrative and Evolutionary Galliformes Genomics, iEGG Center, National Chung Hsing University, Taiwan
| | - S E Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan.,Department of Poultry Science, Texas A&M University, College Station.,Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan
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Body fat affects mouse reproduction, ovarian hormone release, and response to follicular stimulating hormone. Reprod Biol 2018; 18:5-11. [DOI: 10.1016/j.repbio.2017.12.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 12/04/2017] [Accepted: 12/05/2017] [Indexed: 02/07/2023]
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Genetic selection on abdominal fat content alters the reproductive performance of broilers. Animal 2018; 12:1232-1241. [DOI: 10.1017/s1751731117002658] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Sirotkin AV, Fabian D, Babel'ová Kubandová J, Vlčková R, Alwasel S, Harrath AH. Metabolic state can define the ovarian response to environmental contaminants and medicinal plants. Appl Physiol Nutr Metab 2017; 42:1264-1269. [PMID: 28772093 DOI: 10.1139/apnm-2017-0262] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2023]
Abstract
Environmental contaminants and medicinal plants can affect reproductive processes. The aim of this study was to investigate the effect of maternal metabolic status on the response of mouse ovaries to the environmental contaminants benzene and xylene, as well as to extracts of the medicinal plant yucca. Ovaries isolated from normal-lean and slightly obese mice were cultured with or without 0.1% benzene or xylene for 24 h. Similarly, ovaries isolated from normal-lean, slightly obese, and significantly obese mice were cultured for 24 h with or without an extract of Yucca shidigera (YS, 10 μ g/mL). We found that the metabolic status did not influence the release of basal progesterone (P4), testosterone (T), or insulin-like growth factor I (IGF-I), but obesity influenced the effects of the environmental contaminants and YS. Benzene reduced P4 output in ovaries from obese but not normal-lean mice; it also reduced IGF-I (but not T) release from ovaries irrespective of the metabolic status. Xylene dramatically increased P4 and T (but not IGF-I) release by ovaries from normal-lean mice, but there were no changes in P4 and only small increases in T output in obese mice. YS increased P4 (but not T or IGF-I) release in normal-lean and slightly obese animal ovaries, whilst significant obesity was associated with a lack of P4 response to YS. Obesity might affect the basal ovarian release of T or IGF-I and increases the sensitivity of ovaries to the action of benzene but decreases their responsiveness to xylene and YS.
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Affiliation(s)
- Alexander V Sirotkin
- a Department of Zoology and Anthropology, Constantine the Philosopher University, 949 74 Nitra, Slovakia
- b Department of Genetics and Reproduction, Research Institute of Animal Production, 949 59 Lužianky, Slovakia
| | - Dušan Fabian
- c Institute of Animal Physiology, Slovak Academy of Sciences, 040 01 Košice, Slovakia
| | | | - Radoslava Vlčková
- d Department of Anatomy, Histology, and Physiology, Institute of Physiology, University of Veterinary Medicine and Pharmacy, 041 81 Košice, Slovakia
| | - Saleh Alwasel
- e Department of Zoology, College of Science, King Saud University, 11451 Riyadh, Saudi Arabia
| | - Abdel Halim Harrath
- e Department of Zoology, College of Science, King Saud University, 11451 Riyadh, Saudi Arabia
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Ahmed AA, Fedail JS, Musa HH, Musa TH, Sifaldin AZ. Gum Arabic supplementation improved antioxidant status and alters expression of oxidative stress gene in ovary of mice fed high fat diet. MIDDLE EAST FERTILITY SOCIETY JOURNAL 2016. [DOI: 10.1016/j.mefs.2015.10.001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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Faure M, Guibert E, Alves S, Pain B, Ramé C, Dupont J, Brillard JP, Froment P. The insulin sensitiser metformin regulates chicken Sertoli and germ cell populations. Reproduction 2016; 151:527-38. [DOI: 10.1530/rep-15-0565] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2015] [Accepted: 02/25/2016] [Indexed: 11/08/2022]
Abstract
Abstract
Metformin, an insulin sensitiser from the biguanide family of molecules, is used for the treatment of insulin resistance in type 2 diabetes individuals. It increases peripheral glucose uptake and may reduce food intake. Based on the tight link between metabolism and fertility, we investigated the role of metformin on testicular function using in vitro culture of Sertoli cells and seminiferous tubules, complemented by in vivo data obtained following metformin administration to prepubertal chickens. In vitro, metformin treatment reduced Sertoli cell proliferation without inducing apoptosis and morphological changes. The metabolism of Sertoli cells was affected because lactate secretion by Sertoli cells increased approximately twofold and intracellular free ATP was negatively impacted. Two important pathways regulating proliferation and metabolism in Sertoli cells were assayed. Metformin exposure was not associated with an increased phosphorylation of AKT or ERK. There was a 90% reduction in the proportion of proliferating germ cells after a 96-h exposure of seminiferous tubule cultures to metformin. In vivo, 6-week-old chickens treated with metformin for 3 weeks exhibited reduced testicular weight and a 50% decrease in testosterone levels. The expression of a marker of undifferentiated germ cells was unchanged in contrast to the decrease in expression of ‘protamine’, a marker of differentiated germ cells. In conclusion, these results suggest that metformin affects the testicular energy content and the proliferative ability of Sertoli and germ cells.
Reproduction (2016) 151 527–538
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Intracellular lipid dysregulation interferes with leukocyte function in the ovaries of meat-type hens under unrestricted feed intake. Anim Reprod Sci 2016; 167:40-50. [PMID: 26874430 DOI: 10.1016/j.anireprosci.2016.02.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Revised: 01/26/2016] [Accepted: 02/01/2016] [Indexed: 01/29/2023]
Abstract
Meat-type Red-feather country hens fed ad libitum (AD-hens) exhibit obesity-associated morbidities and a number of ovarian irregularities. Leukocyte participations in ovarian activities are unstudied in AD-hens. In contrast to feed-restricted hens (R-hens), ovulatory process of the F1 follicle appeared delayed in AD-hens in association with reduced F1 follicle progesterone content, gelatinase A (MMP-2) and collagenase-3 (MMP-13) activities coincident with elevated IL-1β and no production (P<0.05), and increased leukocyte infiltration of inflamed necrotic follicle walls. Extracts of AD-hen F1 follicle walls induced greater leukocyte migration than extracts from F1 follicle wall extracts of R-hens (P<0.05). Co-cultures of granulosa cells with increasing numbers of leukocytes from either AD-hens or R-hens exhibited dose dependent reductions in progesterone production and increases in cell death. AD-hen leukocytes were less proapoptotic than their R counterparts (P<0.05). Granulosa MMP-13 and MMP-2 activities were also suppressed in the co-cultures with heterophils or monocytes in a dose-dependent manner (P<0.05). AD heterophils and R monocytes had a greater inhibitory effect on MMP activities in the co-cultures than their respective counterparts (P<0.05). Both basal and LPS-induced IL-1β secretion and MMP-22 or MMP-2 activities in freshly isolated AD-hen leukocytes were reduced (P<0.05). Exposure of AD or R leukocytes to 0.5mM palmitate impaired IL-1β secretion and MMP-22 or MMP-2 activity. Inhibition of ceramide synthesis with FB1 and ROS production with n-MPG scavenging rescued MMP activity and IL-1β production in palmitate treated heterophils, but exacerbated monocyte suppression. These latter findings suggest that intracellular lipid dysregulation in leukocytes contributes to ovarian dysfunction in AD-hens.
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Pan YE, Liu ZC, Chang CJ, Huang YF, Lai CY, Walzem RL, Chen SE. Feed restriction ameliorates metabolic dysregulation and improves reproductive performance of meat-type country chickens. Anim Reprod Sci 2014; 151:229-36. [PMID: 25458320 DOI: 10.1016/j.anireprosci.2014.10.003] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Revised: 10/02/2014] [Accepted: 10/05/2014] [Indexed: 11/17/2022]
Abstract
Restricted feed intake improves egg production in Cornish×Plymouth Rock (broiler) hens. Red-feather (RF) and Black-feather (BF) chickens are 2 local strains of non-broiler meat-type chickens whose egg production has declined with continued selection for meat yield, and which are unstudied regarding restricted feeding and egg-laying improvement. Sixteen week old RF and BF pullets were either fed ad libitum (AL) or restricted to 85% AL intake (R). At 35wk and 50wk R-hens showed improved egg production and less abnormal ovarian morphology than AL-hens. Obesity, hepatic steatosis, lipotoxic change to plasma lipids, and systemic inflammation induced by AL feeding in RF and BF hens were similar to those observed previously in AL-broiler hens. Egg production was negatively correlated to body weight, fractional abdominal fat weight and plasma NEFA concentrations in AL hens (P<0.05). AL-hen hierarchical follicles accumulated ceramide and increased interleukin-1β production (P<0.05) in conjunction with increased granulosa cell apoptosis, follicle atresia, ovarian regression, and reduced plasma 17β-estradiol concentrations (P<0.05). The present outcomes from non-broiler but nevertheless meat-type country chicken strains indicate that selection for rapid growth and increased meat yield fundamentally changes energy metabolism in a way that renders hens highly susceptible to reproductive impairment from lipid dysregulation and pro-inflammatory signaling rather than impaired resource allocation per se.
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Affiliation(s)
- Yu-En Pan
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Zu-Chen Liu
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Chai-Ju Chang
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Yu-Feng Huang
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Chien-Yang Lai
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan
| | - Rosemary L Walzem
- Department of Poultry Science, Texas A&M University, College Station, TX, USA
| | - Shuen-Ei Chen
- Department of Animal Science, National Chung Hsing University, Taichung, Taiwan; Agricultural Biotechnology Center, National Chung Hsing University, Taichung, Taiwan; Center for the Integrative and Evolutionary Galliformes Genomics, iEGG center, National Chung Hsing University, Taiwan.
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