1
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Roy I, Rahman M, Karunakaran M, Gayari I, Baneh H, Mandal A. Genetic relationships between reproductive and production traits in Jersey crossbred cattle. Gene 2024; 894:147982. [PMID: 37956965 DOI: 10.1016/j.gene.2023.147982] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Revised: 09/14/2023] [Accepted: 11/09/2023] [Indexed: 11/21/2023]
Abstract
The study aimed to estimate the genetic parameters of different reproductive traits namely age at first calving (AFC), calving interval (CI), days open (DO) and number of service per conception (NSPC) and their associations with productive traits including 305-day milk yield (305DMY), total lactation milk yield (TLMY) and lactation length (LL) of Jersey crossbred cattle maintained at Kalyani, Nadia, West Bengal, India. Genetic parameters of reproductive traits and their correlations with productive traits were estimated by Restricted Maximum Likelihood method and Bayesian approach. Using both analytical approaches, the estimates of heritability for AFC, CI, DO and NSPC ranged from 0.12 -0.15, 0.05-0.08, 0.08-0.09 and 0.04-0.06, respectively. Low proportion of variances associated with permanent environmental effect of animals (c2 effect) were detected for CI (0.08-0.10), DO (0.09-0.11) and NSPC (0.05-0.06) in both the methods. Repeatability measures for all the reproductive traits considered in this study were low to moderate in nature, which ranged from 0.09 to 0.17. Genetic correlations between different reproductive traits were positive and low (0.05) to high (0.98) in magnitude except AFC-NSPC. Low and negative genetic correlations of AFC with 305DMY and TLMY were favourable and indicated animals with high milk yield had early age of maturity. Positive genetic correlations between CI, DO and NSPC with all production traits implied the antagonism relationships among these traits, therefore in any breeding program for improvement of production traits via selection, the reproductive traits should be taken into account as well.
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Affiliation(s)
- Ishani Roy
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 West Bengal, India
| | - Mokidur Rahman
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 West Bengal, India
| | - M Karunakaran
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 West Bengal, India
| | - Indrajit Gayari
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 West Bengal, India
| | - Hasan Baneh
- Project Center for Agro Technologies, Skolkovo Institute of Science and Technology (Skoltech), Moscow 121125, Russia
| | - Ajoy Mandal
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, 741235 West Bengal, India.
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2
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Das S, Shaji A, Nain D, Singha S, Karunakaran M, Baithalu RK. Precision technologies for the management of reproduction in dairy cows. Trop Anim Health Prod 2023; 55:286. [PMID: 37540276 DOI: 10.1007/s11250-023-03704-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Accepted: 07/28/2023] [Indexed: 08/05/2023]
Abstract
Precision livestock farming (PLF) utilizes information and communication technology (ICT) to continuously monitor, control, and enhance the productivity, reproduction, health, welfare, and environmental impact of livestock. Technological advancements have facilitated the seamless flow of information from animals to humans, enabling practical decision-making processes concerning health, reproduction management, and calving surveillance. With the increasing population of livestock per farm, it has become impractical for farmers to individually track every animal within these large groups. Historically, cattle management decisions heavily relied on human observation, judgment, and experience. However, it is impossible for a single individual to gather reliable audio-visual monitoring data round the clock. Presently, dairy cows exhibit subtler indicators of estrus, resulting in a substantial chance of missing an estrus cycle. Furthermore, calving complications sometimes go unnoticed on farms, resulting in a higher number of culled cattle. In addition, an increasing number of crossbred cows experience delayed return to estrus after calving due to low body condition scores (BCS). The decline in BCS during the dry period is associated with a reduced likelihood of pregnancy following the first and second postpartum inseminations. Precision technologies enable the monitoring and tracking of an individual cow's physiological behavior and reproductive parameters, thereby optimizing management practices and farm performance. Despite the exploration of various technologies, there are still some common challenges that need to be addressed, including battery lifespan, transmission range, specificity and sensitivity, storage capacity, and economic affordability. Nonetheless, the demand for these tools from farmers and researchers is growing, and the implementation of PLF in grazing systems can yield positive outcomes in terms of animal reproductive welfare and labor optimization. This review primarily focuses on the different aspects of reproduction management in dairy using sensors, automated cameras, and various computer software.
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Affiliation(s)
- Surajit Das
- Department of Animal Reproduction, Gynaecology and Obstetrics, ICAR- National Dairy Research Institute (ERS), A-12, Kalyani, West Bengal, 741235, India.
| | - Arsha Shaji
- Department of Animal Reproduction, Gynaecology and Obstetrics, ICAR- National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Dipti Nain
- Department of Animal Reproduction, Gynaecology and Obstetrics, ICAR- National Dairy Research Institute, Karnal, Haryana, 132001, India
| | - Shubham Singha
- Department of Animal Reproduction, Gynaecology and Obstetrics, ICAR- National Dairy Research Institute (ERS), A-12, Kalyani, West Bengal, 741235, India
| | - M Karunakaran
- Department of Animal Reproduction, Gynaecology and Obstetrics, ICAR- National Dairy Research Institute (ERS), A-12, Kalyani, West Bengal, 741235, India
| | - Rubina Kumari Baithalu
- Department of Animal Reproduction, Gynaecology and Obstetrics, ICAR- National Dairy Research Institute, Karnal, Haryana, 132001, India
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3
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Chernikova V, Shekhah O, Belmabkhout Y, Karunakaran M, Eddaoudi M. A zeolite‐like Metal‐Organic Framework Based Membrane for Reverse Selective Hydrogen Separation and Butane Isomers Sieving. Angew Chem Int Ed Engl 2023. [DOI: 10.1002/ange.202218842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
Affiliation(s)
- Valeriya Chernikova
- KAUST: King Abdullah University of Science and Technology AMPMC SAUDI ARABIA
| | - Osama Shekhah
- KAUST: King Abdullah University of Science and Technology AMPM 4700 KAUST 23955 Thuwal SAUDI ARABIA
| | - Youssef Belmabkhout
- KAUST: King Abdullah University of Science and Technology AMPMC SAUDI ARABIA
| | | | - Mohamed Eddaoudi
- King Abdullah University of Science and Technology Department of Chemistry Al-jazri building 23955-6900 Thuwal SAUDI ARABIA
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4
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Chernikova V, Shekhah O, Belmabkhout Y, Karunakaran M, Eddaoudi M. A Zeolite-Like Metal-Organic Framework Based Membrane for Reverse Selective Hydrogen Separation and Butane Isomer Sieving. Angew Chem Int Ed Engl 2023; 62:e202218842. [PMID: 36762967 DOI: 10.1002/anie.202218842] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 02/07/2023] [Accepted: 02/08/2023] [Indexed: 02/11/2023]
Abstract
Here, the fabrication of a defect-free membrane that is based on a zeolite-like metal-organic framework (ZMOF) with the underlying ana topology is reported. The unique ana-ZMOF structure provides high degree of pore connectivity, which is reflected by the fast transport of gases. Prominently, it offers an optimum pore-aperture size, affording notable sieving selectivity for butane/isobutane, and optimal pore energetics for reverse CO2 /H2 separation. This emphasize the potential for the application of pure MOF membranes, paving the way to more sustainability of energy resources.
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Affiliation(s)
- Valeriya Chernikova
- Division of Physical Sciences and Engineering, Advanced Membranes & Porous Materials Center, Functional Materials Design, Discovery & Development Research Group (FMD3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Osama Shekhah
- Division of Physical Sciences and Engineering, Advanced Membranes & Porous Materials Center, Functional Materials Design, Discovery & Development Research Group (FMD3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Youssef Belmabkhout
- Division of Physical Sciences and Engineering, Advanced Membranes & Porous Materials Center, Functional Materials Design, Discovery & Development Research Group (FMD3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Madhavan Karunakaran
- Division of Physical Sciences and Engineering, Advanced Membranes & Porous Materials Center, Functional Materials Design, Discovery & Development Research Group (FMD3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
| | - Mohamed Eddaoudi
- Division of Physical Sciences and Engineering, Advanced Membranes & Porous Materials Center, Functional Materials Design, Discovery & Development Research Group (FMD3), King Abdullah University of Science and Technology (KAUST), Thuwal, 23955-6900, Kingdom of Saudi Arabia
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5
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Kumar M, Chatterjee A, Dutta T, Reena Y, Mohammad A, Bhakat C, Rai S, Mandal D, Karunakaran M. Effect of exogenous fibrolytic enzymes supplementation on voluntary intake, availability of nutrients and growth performance in Black Bengal kids (Capra hircus). Small Rumin Res 2023. [DOI: 10.1016/j.smallrumres.2023.106912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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6
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Pramanik A, Bera S, Menda R, Mondal M, Karunakaran M, Santra A, Das SK. 110 Enhancement of developmental competence of immature oocytes supplementing with leukaemia inhibitory factor as a media supplement. Reprod Fertil Dev 2022. [DOI: 10.1071/rdv35n2ab110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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7
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Datta SJ, Mayoral A, Murthy Srivatsa Bettahalli N, Bhatt PM, Karunakaran M, Carja ID, Fan D, Graziane M Mileo P, Semino R, Maurin G, Terasaki O, Eddaoudi M. Rational design of mixed-matrix metal-organic framework membranes for molecular separations. Science 2022; 376:1080-1087. [PMID: 35653472 DOI: 10.1126/science.abe0192] [Citation(s) in RCA: 79] [Impact Index Per Article: 39.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Conventional separation technologies to separate valuable commodities are energy intensive, consuming 15% of the worldwide energy. Mixed-matrix membranes, combining processable polymers and selective adsorbents, offer the potential to deploy adsorbent distinct separation properties into processable matrix. We report the rational design and construction of a highly efficient, mixed-matrix metal-organic framework membrane based on three interlocked criteria: (i) a fluorinated metal-organic framework, AlFFIVE-1-Ni, as a molecular sieve adsorbent that selectively enhances hydrogen sulfide and carbon dioxide diffusion while excluding methane; (ii) tailoring crystal morphology into nanosheets with maximally exposed (001) facets; and (iii) in-plane alignment of (001) nanosheets in polymer matrix and attainment of [001]-oriented membrane. The membrane demonstrated exceptionally high hydrogen sulfide and carbon dioxide separation from natural gas under practical working conditions. This approach offers great potential to translate other key adsorbents into processable matrix.
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Affiliation(s)
- Shuvo Jit Datta
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia.,Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, Functional Materials Design, Discovery and Development (FMD3), KAUST, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Alvaro Mayoral
- Centre for High-Resolution Electron Microscopy, School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai 201210, China.,Instituto de Nanociencia y Materiales de Aragon, CSIC - Universidad de Zaragoza, Laboratorio de Microscopias Avanzadas, 50009 Zaragoza, Spain
| | - Narasimha Murthy Srivatsa Bettahalli
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Prashant M Bhatt
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia.,Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, Functional Materials Design, Discovery and Development (FMD), KAUST, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Madhavan Karunakaran
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Ionela Daniela Carja
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, Functional Materials Design, Discovery and Development (FMD), KAUST, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Dong Fan
- Institut Charles Gerhardt Montpellier (ICGM), University of Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Paulo Graziane M Mileo
- Institut Charles Gerhardt Montpellier (ICGM), University of Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Rocio Semino
- Institut Charles Gerhardt Montpellier (ICGM), University of Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Guillaume Maurin
- Institut Charles Gerhardt Montpellier (ICGM), University of Montpellier, CNRS, ENSCM, 34095 Montpellier, France
| | - Osamu Terasaki
- Centre for High-Resolution Electron Microscopy, School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,Shanghai Key Laboratory of High-Resolution Electron Microscopy, ShanghaiTech University, Shanghai 201210, China
| | - Mohamed Eddaoudi
- Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia.,Division of Physical Science and Engineering, Advanced Membrane and Porous Materials Center, Functional Materials Design, Discovery and Development (FMD), KAUST, Thuwal 23955-6900, Kingdom of Saudi Arabia
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8
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Chisca S, Bettahalli NS, Musteata VE, Vasylevskyi S, Hedhili MN, Abou-Hamad E, Karunakaran M, Genduso G, Nunes SP. Thermal treatment of hydroxyl functionalized polytriazole and its effect on gas transport: From crosslinking to carbon molecular sieve. J Memb Sci 2022. [DOI: 10.1016/j.memsci.2021.119963] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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9
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Kedare GM, . V, Karunakaran M, Mandal A, Ghosh MK, Naskar S. Effect of area specific mineral mixture supplementation on milk production, biochemical and blood mineral status of Black Bengal goats. IJDS 2021. [DOI: 10.33785/ijds.2021.v74i02.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Knebel A, Bavykina A, Datta SJ, Sundermann L, Garzon-Tovar L, Lebedev Y, Durini S, Ahmad R, Kozlov SM, Shterk G, Karunakaran M, Carja ID, Simic D, Weilert I, Klüppel M, Giese U, Cavallo L, Rueping M, Eddaoudi M, Caro J, Gascon J. Solution processable metal-organic frameworks for mixed matrix membranes using porous liquids. Nat Mater 2020; 19:1346-1353. [PMID: 32778813 DOI: 10.1038/s41563-020-0764-y] [Citation(s) in RCA: 106] [Impact Index Per Article: 26.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Accepted: 07/10/2020] [Indexed: 05/18/2023]
Abstract
The combination of well-defined molecular cavities and chemical functionality makes crystalline porous solids attractive for a great number of technological applications, from catalysis to gas separation. However, in contrast to other widely applied synthetic solids such as polymers, the lack of processability of crystalline extended solids hampers their application. In this work, we demonstrate that metal-organic frameworks, a type of highly crystalline porous solid, can be made solution processable via outer surface functionalization using N-heterocyclic carbene ligands. Selective outer surface functionalization of relatively large nanoparticles (250 nm) of the well-known zeolitic imidazolate framework ZIF-67 allows for the stabilization of processable dispersions exhibiting permanent porosity. The resulting type III porous liquids can either be directly deployed as liquid adsorbents or be co-processed with state-of-the-art polymers to yield highly loaded mixed matrix membranes with excellent mechanical properties and an outstanding performance in the challenging separation of propylene from propane. We anticipate that this approach can be extended to other metal-organic frameworks and other applications.
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Affiliation(s)
- Alexander Knebel
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Hannover, Germany.
- Advanced Catalytic Materials, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
| | - Anastasiya Bavykina
- Advanced Catalytic Materials, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
| | - Shuvo Jit Datta
- Functional Materials Design, Discovery and Development, Advanced Membranes & Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Lion Sundermann
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Hannover, Germany
| | - Luis Garzon-Tovar
- Advanced Catalytic Materials, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Yury Lebedev
- Advanced Catalytic Materials, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
| | - Sara Durini
- Advanced Catalytic Materials, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Rafia Ahmad
- Computational Chemistry Laboratory, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Sergey M Kozlov
- Computational Chemistry Laboratory, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Genrikh Shterk
- Advanced Catalytic Materials, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Madhavan Karunakaran
- Functional Materials Design, Discovery and Development, Advanced Membranes & Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Ionela Daniela Carja
- Functional Materials Design, Discovery and Development, Advanced Membranes & Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Dino Simic
- Deutsches Institut für Kautschuktechnologie e. V., Hannover, Germany
| | - Irina Weilert
- Deutsches Institut für Kautschuktechnologie e. V., Hannover, Germany
| | - Manfred Klüppel
- Deutsches Institut für Kautschuktechnologie e. V., Hannover, Germany
| | - Ulrich Giese
- Deutsches Institut für Kautschuktechnologie e. V., Hannover, Germany
| | - Luigi Cavallo
- Computational Chemistry Laboratory, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Magnus Rueping
- Computational Chemistry Laboratory, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Mohamed Eddaoudi
- Functional Materials Design, Discovery and Development, Advanced Membranes & Porous Materials Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
| | - Jürgen Caro
- Institute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Hannover, Germany
- School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou, China
| | - Jorge Gascon
- Advanced Catalytic Materials, KAUST Catalysis Center, King Abdullah University of Science and Technology, Thuwal, Saudi Arabia.
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11
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Devi KR, Selvan G, Karunakaran M, Raj ILP, El-Rehim AFA, Zahran HY, Shkir M, AlFaify S. Enhanced room temperature ammonia gas sensing properties of Al-doped ZnO nanostructured thin films. Opt Quant Electron 2020; 52:501. [DOI: 10.1007/s11082-020-02621-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 10/23/2020] [Indexed: 09/02/2023]
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12
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Karunakaran M, Gajare VC, Mandal A, Mondal M, Das SK, Ghosh MK, Rai S, Behera R. Electrophoretic profile of seminal proteins and their correlation with in vitro sperm characters in Black Bengal buck semen. Vet World 2019; 12:621-628. [PMID: 31327896 PMCID: PMC6584853 DOI: 10.14202/vetworld.2019.621-628] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Accepted: 03/08/2019] [Indexed: 11/24/2022] Open
Abstract
Aim: This study aimed to study the electrophoretic properties of seminal plasma and sperm proteins of Black Bengal buck semen and their correlation with in vitro sperm characters and freezability. Materials and Methods: Semen ejaculates from nine Black Bengal bucks were collected by artificial vagina (n=20/buck). Ejaculates were evaluated for in vitro sperm characters and electrophoretic profile of seminal protein. In vitro sperm characters were evaluated immediately after collection, after completion of equilibration period, and after freeze-thawing. For seminal protein studies, seminal plasma proteins were precipitated by ice-cold ethanol method, and sperm proteins were extracted by Triton X detergent extraction method. Discontinuous sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) was performed to assess the molecular weight of seminal proteins. Correlation between in vitro sperm characters and protein bands was determined by Pearson’s correlation coefficient, and two-way ANOVA was applied to find the individual buck differences. Results: Significant difference (p<0.01) among the bucks was noticed in the in vitro sperm characters evaluated at all the three stages of semen evaluation such as immediately after collection, after completion of equilibration period, and post-freeze thawing. Progressive loss of sperm motility, membrane integrity, and other in vitro sperm characters were noticed during cryopreservation. A total of ten protein bands in the molecular weight ranging from 17 to 180 kDa were found in the SDS-PAGE of seminal plasma proteins, while nine bands of 17-134 kDa were observed in sperm proteins. Seminal plasma proteins of molecular weight 75, 62-49, 20, and 17 kDa and sperm proteins of 75, 20, and 17 kDa were present in all the nine bucks (100%) screened, and variation among the bucks was noticed for the presence of other proteins. Seminal plasma protein of 180-134 kDa showed a negative correlation with individual motility (−0.716) and functional membrane integrity of sperm cells (−0.724) in post-freeze–thaw analysis and 48 kDa protein had a positive correlation with individual motility (0.649) and functional membrane integrity of sperm cells (0.664) in post-thaw analysis. Sperm proteins of 63 kDa had a negative correlation (−0.616) with sperm concentration in neat semen. Conclusion: Variation among the bucks was noticed in the in vitro sperm characters and semen freezability. Correlation between seminal proteins and in vitro sperm characters and semen freezability had been found which might be useful as a tool to select breeding bucks.
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Affiliation(s)
- M Karunakaran
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal, India
| | - Vivek C Gajare
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal, India
| | - Ajoy Mandal
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal, India
| | - Mohan Mondal
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal, India
| | - S K Das
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal, India
| | - M K Ghosh
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal, India
| | - S Rai
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal, India
| | - R Behera
- ICAR-National Dairy Research Institute, Eastern Regional Station, Kalyani, West Bengal, India
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13
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Liu G, Cadiau A, Liu Y, Adil K, Chernikova V, Carja ID, Belmabkhout Y, Karunakaran M, Shekhah O, Zhang C, Itta AK, Yi S, Eddaoudi M, Koros WJ. Enabling Fluorinated MOF-Based Membranes for Simultaneous Removal of H2
S and CO2
from Natural Gas. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808991] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gongping Liu
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
- College of Chemical Engineering; Nanjing Tech University; 5 Xinmofan Road Nanjing 210009 P. R. China
| | - Amandine Cadiau
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Yang Liu
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
| | - Karim Adil
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Valeriya Chernikova
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Ionela-Daniela Carja
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Youssef Belmabkhout
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Madhavan Karunakaran
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Osama Shekhah
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Chen Zhang
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
| | - Arun K. Itta
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
| | - Shouliang Yi
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
| | - Mohamed Eddaoudi
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - William J. Koros
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
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Liu G, Cadiau A, Liu Y, Adil K, Chernikova V, Carja ID, Belmabkhout Y, Karunakaran M, Shekhah O, Zhang C, Itta AK, Yi S, Eddaoudi M, Koros WJ. Enabling Fluorinated MOF-Based Membranes for Simultaneous Removal of H2
S and CO2
from Natural Gas. Angew Chem Int Ed Engl 2018; 57:14811-14816. [DOI: 10.1002/anie.201808991] [Citation(s) in RCA: 127] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Indexed: 01/01/2023]
Affiliation(s)
- Gongping Liu
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
- College of Chemical Engineering; Nanjing Tech University; 5 Xinmofan Road Nanjing 210009 P. R. China
| | - Amandine Cadiau
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Yang Liu
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
| | - Karim Adil
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Valeriya Chernikova
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Ionela-Daniela Carja
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Youssef Belmabkhout
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Madhavan Karunakaran
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Osama Shekhah
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - Chen Zhang
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
| | - Arun K. Itta
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
| | - Shouliang Yi
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
| | - Mohamed Eddaoudi
- King Abdullah University of Science and Technology; Advanced Membranes & Porous Materials Center; Division of Physical Sciences and Engineering; Functional Materials Design; Discovery and Development research group (FMD ); Thuwal 23955-6900 KSA
| | - William J. Koros
- School of Chemical & Biomolecular Engineering; Georgia Institute of Technology; 311 Ferst Dr. NW Atlanta GA 30332 USA
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15
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Karunakaran M, Kumar M, Shevate R, Akhtar FH, Peinemann KV. CO₂-Philic Thin Film Composite Membranes: Synthesis and Characterization of PAN-r-PEGMA Copolymer. Polymers (Basel) 2017; 9:polym9070219. [PMID: 30970944 PMCID: PMC6432164 DOI: 10.3390/polym9070219] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2017] [Revised: 06/07/2017] [Accepted: 06/09/2017] [Indexed: 12/03/2022] Open
Abstract
In this work, we report the successful fabrication of CO2-philic polymer composite membranes using a polyacrylonitrile-r-poly(ethylene glycol) methyl ether methacrylate (PAN-r-PEGMA) copolymer. The series of PAN-r-PEGMA copolymers with various amounts of PEG content was synthesized by free radical polymerization in presence of AIBN initiator and the obtained copolymers were used for the fabrication of composite membranes. The synthesized copolymers show high molecular weights in the range of 44–56 kDa. We were able to fabricate thin film composite (TFC) membranes by dip coating procedure using PAN-r-PEGMA copolymers and the porous PAN support membrane. Scanning electron microscopy (SEM) and atomic force microscopy (AFM) were applied to analyze the surface morphology of the composite membranes. The microscopy analysis reveals the formation of the defect free skin selective layer of PAN-r-PEGMA copolymer over the porous PAN support membrane. Selective layer thickness of the composite membranes was in the range of 1.32–1.42 μm. The resulting composite membrane has CO2 a permeance of 1.37 × 10−1 m3/m2·h·bar and an ideal CO2/N2, selectivity of 65. The TFC membranes showed increasing ideal gas pair selectivities in the order CO2/N2 > CO2/CH4 > CO2/H2. In addition, the fabricated composite membranes were tested for long-term single gas permeation measurement and these membranes have remarkable stability, proving that they are good candidates for CO2 separation.
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Affiliation(s)
- Madhavan Karunakaran
- Advanced Membranes and Porous Materials Center, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Mahendra Kumar
- Advanced Membranes and Porous Materials Center, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Rahul Shevate
- Advanced Membranes and Porous Materials Center, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Faheem Hassan Akhtar
- Advanced Membranes and Porous Materials Center, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
| | - Klaus-Viktor Peinemann
- Advanced Membranes and Porous Materials Center, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.
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16
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Kumar R, Chandra P, Konyak P, Karunakaran M, Santra A, Das SK. 159 IN VITRO DEVELOPMENT OF CAPRINE EMBRYO USING CRYOPRESERVED BLACK BENGAL BUCK SEMEN. Reprod Fertil Dev 2017. [DOI: 10.1071/rdv29n1ab159] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The purpose of this study was to check the competence of cryopreserved black Bengal buck semen to produce goat embryo through IVF. So far, cryopreserved black Bengal buck semen has not been used to produce goat embryos by IVF. For the study, fresh goat oviducts and ovaries were collected from slaughterhouse in a thermo flask containing 0.9% saline solution supplemented with antibiotic (400 IU mL−1 penicillin and 500 mg mL−1 streptomycin) at 30–35°C and transported to laboratory within 2–3 h of slaughter. Cumulus-oocyte complexes were collected from slaughterhouse ovaries, washed 5–6 times, and cultured in maturation media (TCM-199 + 10% FBS + 10 mg mL−1 FSH-P + 0.81 mM sodium pyruvate + 5% follicular fluid + 50 mg mL−1 gentamicin sulfate + 1 μg mL−1 oestradiol + 100 μM cysteamine) for 27 h in a 5% CO2 incubator at 38.5°C with maximum humidity. After 27 h of culture, cumulus cells were separated from matured oocytes by repeated pipetting using a fine pipette in fertilization Bracket and Oliphant’s (BO) medium. After removal of cumulus cells, the oocytes were transferred to acidified Tyrode’s medium for zona thinning for 52 s and were co-incubated with capacitated sperms for fertilization in fertilization BO medium at 38.5°C in 5% CO2 in air with maximum humidity. In the experiment I, freshly collected buck semen was used for IVF after processing for capacitation. In experiment II, cryopreserved buck semen straws were thawed and sperm were capacitated in vitro and used for fertilization. After 5 h of co-incubation, presumptive zygotes were washed thoroughly and cultured in embryo development medium for cleavage. Three different in vitro development media (RVCL, mSOF + 2.5% BSA, and KSOM + 0.5% BSA) were used. After 40 to 42 h, cleavage was observed and embryos were co-incubated with oviducal cells in replacement media for further development. In the fresh group, overall cleavage rates (%) were 37.76 ± 2.98, 39.60 ± 1.75, 29.01 ± 1.74 and morula formation rates (%) were 7.72 ± 3.38, 6.03 ± 1.29, 3.00 ± 3.00 in RVCL, mSOF, and KSOM media, respectively. However, in the cryopreserved group the overall cleavage rates (%) were 29.17 ± 2.56, 27.70 ± 2.31, and 24.17 ± 1.44 in RVCL, mSOF, and KSOM media, respectively, and morula formation (%) was achieved 2.93 ± 0.97 in RVCL media. These results indicate that cryopreserved black Bengal buck semen have competence to produce embryos and could be used for embryo development through IVF.
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Pathak AD, Dubal ZB, Karunakaran M, Doijad SP, Raorane AV, Dhuri RB, Bale MA, Chakurkar EB, Kalorey DR, Kurkure NV, Barbuddhe SB. Apparent seroprevalence, isolation and identification of risk factors for brucellosis among dairy cattle in Goa, India. Comp Immunol Microbiol Infect Dis 2016; 47:1-6. [PMID: 27477501 DOI: 10.1016/j.cimid.2016.05.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2015] [Revised: 05/04/2016] [Accepted: 05/23/2016] [Indexed: 10/21/2022]
Abstract
Brucellosis is a highly contagious zoonotic infection affecting livestock and human beings. The disease has been reported worldwide except in few countries where it has been eradicated. The prevalence of brucellosis among cattle from 11 farms having a history of abortions was studied. A total of 481 samples comprising of blood, milk, vaginal swabs, vaginal discharges, placental tissues and fetal tissues were collected from 296 animals. Clinical samples were processed for the isolation of Brucella. Serum samples (n=296) were tested by Rose Bengal Plate Test (RBPT) and indirect ELISA. A total of 90 (30.40%) and 123 (41.55%) samples were positive by RBPT and indirect ELISA, respectively. Also 27.02% samples were positive by both the tests. Brucella isolates (n= 8) were recovered from clinical samples using Brucella selective media. All the isolates demonstrated PCR amplification for the bcsp31 and IS711 genes. Amplification of Brucella abortus specific primer was demonstrated by all the isolates in AMOS PCR indicating isolates to be of either B. abortus biotype 1, 2 or 4. Risk factors for transmission of brucellosis among cattle population were studied by field surveys. It was observed that lack of awareness about brucellosis (OR=8.739, P=0.138) and inadequate floor space (OR=0.278, P=0.128) were crucial risk factors for transmission of bovine brucellosis.
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Affiliation(s)
- Ajay D Pathak
- Animal Sciences Section, ICAR Research Complex for Goa, Old Goa 403 402, India
| | - Z B Dubal
- Animal Sciences Section, ICAR Research Complex for Goa, Old Goa 403 402, India
| | - M Karunakaran
- Animal Sciences Section, ICAR Research Complex for Goa, Old Goa 403 402, India
| | - Swapnil P Doijad
- Animal Sciences Section, ICAR Research Complex for Goa, Old Goa 403 402, India
| | - Abhay V Raorane
- Animal Sciences Section, ICAR Research Complex for Goa, Old Goa 403 402, India
| | - R B Dhuri
- Goa State Co-Operative Milk Producers' Union Limited, Curti, Ponda 403 401, India
| | - M A Bale
- Goa State Co-Operative Milk Producers' Union Limited, Curti, Ponda 403 401, India
| | - Eaknath B Chakurkar
- Animal Sciences Section, ICAR Research Complex for Goa, Old Goa 403 402, India
| | - Dewanand R Kalorey
- Network Project on Brucellosis, Department of Microbiology and Animal Biotechnology, Nagpur Veterinary College, Maharashtra Animal and Fishery Sciences University, Nagpur 440006, India
| | - Nitin V Kurkure
- Network Project on Brucellosis, Department of Microbiology and Animal Biotechnology, Nagpur Veterinary College, Maharashtra Animal and Fishery Sciences University, Nagpur 440006, India
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18
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Shevate R, Karunakaran M, Kumar M, Peinemann KV. Polyanionic pH-responsive polystyrene-b-poly(4-vinyl pyridine-N-oxide) isoporous membranes. J Memb Sci 2016. [DOI: 10.1016/j.memsci.2015.11.038] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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19
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Karunakaran M, Chakurkar EB, Ratnakaran U, Naik PK, Mondal M, Mondal A, Singh NP. Characteristics of boar semen preserved at liquid state. Journal of Applied Animal Research 2016. [DOI: 10.1080/09712119.2016.1150848] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- M. Karunakaran
- ICAR-Central Coastal Agricultural Research Institute, Goa, India
| | - E. B. Chakurkar
- ICAR-Central Coastal Agricultural Research Institute, Goa, India
| | - U. Ratnakaran
- ICAR-Central Coastal Agricultural Research Institute, Goa, India
| | - P. K. Naik
- ICAR-Central Coastal Agricultural Research Institute, Goa, India
| | - M. Mondal
- ICAR-Central Coastal Agricultural Research Institute, Goa, India
| | - A. Mondal
- ICAR-Central Coastal Agricultural Research Institute, Goa, India
| | - N. P. Singh
- ICAR-Central Coastal Agricultural Research Institute, Goa, India
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20
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Karunakaran M, Devanathan TG. Evaluation of bull semen for fertility-associated protein, in vitro characters and fertility. Journal of Applied Animal Research 2016. [DOI: 10.1080/09712119.2015.1129343] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- M. Karunakaran
- ICAR-National Dairy Research Institute, Kalyani, West Bengal, India
| | - T. G. Devanathan
- ICAR-National Dairy Research Institute, Kalyani, West Bengal, India
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21
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Chakurkar EB, Naik SS, Barbuddhe S, Karunakaran M, Naik P, Singh N. Seminal attributes and sperm morphology of Agonda Goan pigs. Journal of Applied Animal Research 2016. [DOI: 10.1080/09712119.2015.1021807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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22
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Karunakaran M, Shevate R, Peinemann KV. Nanostructured double hydrophobic poly(styrene-b-methyl methacrylate) block copolymer membrane manufactured via a phase inversion technique. RSC Adv 2016. [DOI: 10.1039/c6ra02313d] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A simple strategy for preparation of nanostructured poly(styrene-b-methyl methacrylate) (PS-b-PMMA) block copolymer membranes via state-of-the-art phase inversion technique.
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Affiliation(s)
- Madhavan Karunakaran
- Advanced Membranes and Porous Materials Center
- 4700 King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - Rahul Shevate
- Advanced Membranes and Porous Materials Center
- 4700 King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - Klaus-Viktor Peinemann
- Advanced Membranes and Porous Materials Center
- 4700 King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
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23
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Mondal M, Karunakaran M, Baruah KK. Development and Validation of a Sensitive Enzymeimmunoassay for Determination of Plasma Metastin in Mithun (Bos frontalis). J Immunoassay Immunochem 2015; 37:201-16. [DOI: 10.1080/15321819.2015.1120745] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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24
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Mandal A, Karunakaran M, Sharma D, Baneh H, Rout P. Variance components and genetic parameters of growth traits and Kleiber ratio in Muzaffarnagari sheep. Small Rumin Res 2015. [DOI: 10.1016/j.smallrumres.2015.10.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Villalobos LF, Karunakaran M, Peinemann KV. Complexation-induced phase separation: preparation of composite membranes with a nanometer-thin dense skin loaded with metal ions. Nano Lett 2015; 15:3166-3171. [PMID: 25897684 DOI: 10.1021/acs.nanolett.5b00275] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We present the development of a facile phase-inversion method for forming asymmetric membranes with a precise high metal ion loading capacity in only the dense layer. The approach combines the use of macromolecule-metal intermolecular complexes to form the dense layer of asymmetric membranes with nonsolvent-induced phase separation to form the porous support. This allows the independent optimization of both the dense layer and porous support while maintaining the simplicity of a phase-inversion process. Moreover, it facilitates control over (i) the thickness of the dense layer throughout several orders of magnitude from less than 15 nm to more than 6 μm, (ii) the type and amount of metal ions loaded in the dense layer, (iii) the morphology of the membrane surface, and (iv) the porosity and structure of the support. This simple and scalable process provides a new platform for building multifunctional membranes with a high loading of well-dispersed metal ions in the dense layer.
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Affiliation(s)
- Luis Francisco Villalobos
- Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
| | - Madhavan Karunakaran
- Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
| | - Klaus-Viktor Peinemann
- Advanced Membrane and Porous Materials Center, King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
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Valanarasu S, Kathaiingam A, Rhee JK, Chandramohan R, Vijayan TA, Karunakaran M. Improved Memory Effect of ZnO Nanorods Embedded in an Insulating Polymethylmethacrylate Layer. J Nanosci Nanotechnol 2015; 15:1416-20. [PMID: 26353665 DOI: 10.1166/jnn.2015.9034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
Fabrication and characterization of memory devices using ZnO nanorod layer grown by chemical-bath method is reported. The fabricated memory device was found exhibit electrical bistability and nonvolatile memory phenomenon. An additional Polymethylmethacrylate (PMMA) polymer layer coated on ITO substrate prior to nanorod deposition has been found improve the LRS/HRS ratio of the device. The current-voltage characteristics of the memory devices are discussed in terms of formation and rupture of conductive filaments. The devices have shown consistent electrical bistable behavior even for 10(5) resistance-switching cycles. This hybrid ITO/PMMA-ZnO NRs/Al device has potential applications in the field of bistable random access memories.
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Abstract
CO2-selective graphene oxide (GO) nano-composite membranes were prepared for the first time by embedding GO into a commercially available poly(ethylene oxide)–poly(butylene terephthalate) (PEO–PBT) copolymer (PolyActive™).
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Affiliation(s)
- M. Karunakaran
- Advanced Membranes and Porous Materials Center
- 4700 King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - R. Shevate
- Advanced Membranes and Porous Materials Center
- 4700 King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - M. Kumar
- Advanced Membranes and Porous Materials Center
- 4700 King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
| | - K.-V. Peinemann
- Advanced Membranes and Porous Materials Center
- 4700 King Abdullah University of Science and Technology (KAUST)
- Thuwal 23955-6900
- Kingdom of Saudi Arabia
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Aburabie J, Neelakanda P, Karunakaran M, Peinemann KV. Thin-film composite crosslinked polythiosemicarbazide membranes for organic solvent nanofiltration (OSN). REACT FUNCT POLYM 2015. [DOI: 10.1016/j.reactfunctpolym.2014.09.011] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Valanarasu S, Dhanasekaran V, Karunakaran M, Chandramohan R, Mahalingam T. Role of solution pH on the microstructural properties of spin coated cobalt oxide thin films. J Nanosci Nanotechnol 2014; 14:4286-4291. [PMID: 24738384 DOI: 10.1166/jnn.2014.8284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Cobalt Oxide (Co3o4) thin films have been successfully coated onto glass substrates at various solution pH by sol-gel spin coating technique. The film thickness was estimated using weight gain method and it revealed that the film thickness increased with solution pH values. The prepared film structural, morphological, optical and electrical properties were studied using X-ray diffraction (XRD), scanning electron microscope (SEM), UV-Vis-NIR spectrophotometer and Vander Pau method, respectively. The structure of the films were found to be face centered cubic with preferential orientation along (311) plane. X-ray line profile analysis was used to evaluate the micro structural parameters such as crystallite size, micro strain, dislocation density and stacking fault probability. The crystallite size values are increased with increase of solution pH values and maximum value of crystallite is estimated at 40.8 nm at solution pH 8 +/- 0.1. Morphological results showed that the pH of the solution has a marked effect on morphology of the Co3O4 thin films. The optical studies revealed that the band gap can be tailored between 2.16 to 2.31 eV by altering pH. The thin film formed at a solution pH 7 is found to have a low resistivity and high mobility. The electrical resistivity (p), carrier concentration (n) and mobility (micro) values are 0.1 x 10(3) omega x cm, 8.9 cm2 gammas(-1) and 6.6 x 10(14) cm(-3), respectively for Co3O4 thin film prepared at solution pH 7 +/- 0.1. EDAX studies showed that the cobalt content increased and the oxygen content decreased with increase of pH.
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Karunakaran M, Nunes SP, Qiu X, Yu H, Peinemann KV. Isoporous PS-b-PEO ultrafiltration membranes via self-assembly and water-induced phase separation. J Memb Sci 2014. [DOI: 10.1016/j.memsci.2013.11.015] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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31
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Qiu X, Yu H, Karunakaran M, Pradeep N, Nunes SP, Peinemann KV. Selective separation of similarly sized proteins with tunable nanoporous block copolymer membranes. ACS Nano 2013; 7:768-76. [PMID: 23252799 DOI: 10.1021/nn305073e] [Citation(s) in RCA: 179] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
An integral asymmetric membrane was fabricated in a fast and one-step process by combining the self-assembly of an amphiphilic block copolymer (PS-b-P4VP) with nonsolvent-induced phase separation. The structure was found to be composed of a thin layer of densely packed highly ordered cylindrical channels with uniform pore sizes perpendicular to the surface on top of a nonordered sponge-like layer. The as-assembled membrane obtained a water flux of more than 3200 L m(-2) h(-1) bar(-1), which was at least an order of magnitude higher than the water fluxes of commercially available membranes with comparable pore sizes, making this membrane particularly well suited to size-selective and charge-based separation of biomolecules. To test the performance of the membrane, we conducted diffusion experiments at the physiological pH of 7.4 using bovine serum albumin (BSA) and globulin-γ, two proteins with different diameters but too close in size (2-fold difference in molecular mass) to be efficiently separated via conventional dialysis membrane processes. The diffusion rate differed by a factor of 87, the highest value reported to date. We also analyzed charge-based diffusive transport and separation of two proteins of similar molecular weight (BSA and bovine hemoglobin (BHb)) through the membrane as a function of external pH. The membrane achieved a selectivity of about 10 at pH 4.7, the isoelectric point (pI) of BSA. We then positively charged the membrane to improve the separation selectivity. With the modified membrane BSA was completely blocked when the pH was 7.0, the pI of BHb, while BHb was completely blocked at pH 4.7. Our results demonstrate the potential of our asymmetric membrane to efficiently separate biological substances/pharmaceuticals in bioscience, biotechnology, and biomedicine applications.
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Affiliation(s)
- Xiaoyan Qiu
- Advanced Membranes and Porous Materials Center, 4700 King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Kingdom of Saudi Arabia
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Karunakaran M, Vijayakumar C, Muthamil Selvan D, Magesh C. o-Cresol, thiourea and formaldehyde terpolymer – A cation exchange resin. Journal of Saudi Chemical Society 2013. [DOI: 10.1016/j.jscs.2011.02.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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33
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Ravikumar L, Saravanan R, Saravanamani K, Karunakaran M. Synthesis and Characterization of New Polyamides with Substitutions in the Pendent Benzylidene Rings. Des Monomers Polym 2012. [DOI: 10.1163/156855509x448262] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Affiliation(s)
- L. Ravikumar
- a Department of Chemistry, C. B. M. College, Coimbatore 641 042, India;,
| | - R. Saravanan
- b Department of Chemistry, C. B. M. College, Coimbatore 641 042, India
| | - K. Saravanamani
- c Department of Chemistry, C. B. M. College, Coimbatore 641 042, India
| | - M. Karunakaran
- d Department of Chemistry, N. G. M. College, Pollachi 642 104, India
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Nunes SP, Karunakaran M, Pradeep N, Behzad AR, Hooghan B, Sougrat R, He H, Peinemann KV. From micelle supramolecular assemblies in selective solvents to isoporous membranes. Langmuir 2011; 27:10184-10190. [PMID: 21710987 DOI: 10.1021/la201439p] [Citation(s) in RCA: 72] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The supramolecular assembly of PS-b-P4VP copolymer micelles induced by selective solvent mixtures was used to manufacture isoporous membranes. Micelle order in solution was confirmed by cryo-scanning electron microscopy in casting solutions, leading to ordered pore morphology. When dioxane, a solvent that interacts poorly with the micelle corona, was added to the solution, polymer-polymer segment contact was preferential, increasing the intermicelle contact. Immersion in water gave rise to asymmetric porous membranes with exceptional pore uniformity and high porosity. The introduction of a small number of carbon nanotubes to the casting solution improved the membrane stability and the reversibility of the gate response in the presence of different pH values.
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Affiliation(s)
- Suzana P Nunes
- Water Desalination and Reuse Center, King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
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Nunes SP, Behzad AR, Hooghan B, Sougrat R, Karunakaran M, Pradeep N, Vainio U, Peinemann KV. Switchable pH-responsive polymeric membranes prepared via block copolymer micelle assembly. ACS Nano 2011; 5:3516-22. [PMID: 21504167 DOI: 10.1021/nn200484v] [Citation(s) in RCA: 192] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
A process is described to manufacture monodisperse asymmetric pH-responsive nanochannels with very high densities (pore density >2 × 10(14) pores per m(2)), reproducible in m(2) scale. Cylindric pores with diameters in the sub-10 nm range and lengths in the 400 nm range were formed by self-assembly of metal-block copolymer complexes and nonsolvent-induced phase separation. The film morphology was tailored by taking into account the stability constants for a series of metal-polymer complexes and confirmed by AFM. The distribution of metal-copolymer micelles was imaged by transmission electron microscopy tomography. The pH response of the polymer nanochannels is the strongest reported with synthetic pores in the nm range (reversible flux increase of more than 2 orders of magnitude when switching the pH from 2 to 8) and could be demonstrated by cryo-field emission scanning electron microscopy, SAXS, and ultra/nanofiltration experiments.
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Affiliation(s)
- Suzana P Nunes
- Imaging and Characterization Lab, King Abdullah University of Science and Technology (KAUST), 23955-6900 Thuwal, Saudi Arabia
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Mondal M, Karunakaran M, Lee KB, Rajkhowa C. Characterization of Mithun (Bos frontalis) ejaculates and fertility of cryopreserved sperm. Anim Reprod Sci 2009; 118:210-6. [PMID: 19850422 DOI: 10.1016/j.anireprosci.2009.09.001] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2007] [Revised: 09/09/2009] [Accepted: 09/23/2009] [Indexed: 11/28/2022]
Abstract
Technologies for conservation and propagation of genetic resources in the Mithun (Bos frontalis), a rare semi-wild bovine species of Southeast Asia. Successful cryopreservation of Mithun semen would provide a potential vehicle to address above issue. To date, information on characteristics of Mithun ejaculates is not available and there are no reports of birth of live offspring using cryopreserved Mithun semen collected using AV method. A study was therefore conducted to (i) characterize the Mithun ejaculate, (ii) investigate the effectiveness of Mithun sperm cryopreservation, and (iii) determine whether artificial insemination using frozen-thawed Mithun sperm can result in live offspring. Semen samples collected from eight fertile Mithun bulls were evaluated for colour, consistency, volume, concentration, mass activity and progressive motility. The freshly ejaculated sperm were also evaluated for morphological abnormalities, live sperm counts, acrosome integrity, membrane stability (hypo-osmotic swelling test; HOST) and DNA integrity. Semen samples of good quality were cryopreserved in liquid nitrogen using Tris-egg yolk-glycerol diluent. Post-thaw quality of the cryopreserved sperm in terms of progressive motility, morphological abnormalities, live sperm counts, acrosome integrity, membrane stability and DNA integrity were assessed. In addition, 16 Mithun cows at estrus were inseminated with frozen-thawed Mithun sperm. Following cryopreservation, the percentage of progressive motility (fresh versus frozen-thawed), live sperm counts, morphological abnormalities, acrosome integrity, membrane stability and DNA integrity were found to decrease (P<0.01) with a motility recovery rate of 74+/-9%. Mithun cows inseminated with cryopreserved sperm result 75% conception rate and all the conceived cows maintained full-term pregnancy with delivery of live calves.
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Affiliation(s)
- Mohan Mondal
- National Research Centre on Mithun (ICAR), Jharnapani, Medziphema, Nagaland 797106, India.
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Karunakaran M, Mondal M, Rajarajan K, Karmakar HD, Bhat BP, Das J, Bora B, Baruah KK, Rajkhowa C. Early puberty in local Naga boar of India: assessment through epididymal spermiogram and in vivo pregnancy. Anim Reprod Sci 2008; 111:112-9. [PMID: 18372123 DOI: 10.1016/j.anireprosci.2008.02.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2007] [Revised: 02/13/2008] [Accepted: 02/14/2008] [Indexed: 11/24/2022]
Abstract
Male Naga pig of India, a miniature breed is known for its meat quality and early puberty. No scientific efforts were made to verify the farmers' view that this breed reaches puberty at around 2 months of age. A preliminary study was, therefore, conducted with the objectives: (a) to find out the age at puberty based on mature spermiogram and in vivo pregnancy and (b) to record the sperm morphology in different parts of the epididymis. Animals were selected from two different age groups: group I aged 53 days and 2.4 kg and group II of 85 days and 3.0 kg. Semen samples collected from different sections of epididymis were analyzed for sperm motility, live spermatozoa, and morphological abnormalities. Motility increased (P<0.01) and live spermatozoa and total morphological abnormalities decreased (P<0.001) from caput through cauda epididymis in both the groups. Sperm motility, live spermatozoa and morphologically normal spermatozoa in each section of the epididymis were higher (P<0.01) in group II than I. Boars with >60% progressive motility, >70% live spermatozoa, <15% total morphological abnormalities and <10% abnormal acrosomes in cauda epididymal spermatozoa were considered mature spermiogram. As per this definition, pigs of group II had only mature spermiogram. In vivo pregnancy confirmation indicated that Naga boar could impregnate female as early as 90 days of age. In conclusion, Naga boar attained puberty by not later than 3 months with 3.0 kg, which is the lowest body weight at puberty in this species reported so far, as reflected by mature epididymal spermiogram and in vivo pregnancy confirmation.
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Affiliation(s)
- M Karunakaran
- ICAR Research Complex for North Eastern Hill Region, Nagaland Centre, Jharnapani, Medziphema, Nagaland 797106, India
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Karunakaran M, Dhali A, Mech A, Khate K, Rajkhowa C, Mishra DP. Preservation of mithun (Bos frontalis) semen at refrigeration temperature. Anim Reprod Sci 2007; 101:257-64. [PMID: 17095169 DOI: 10.1016/j.anireprosci.2006.09.011] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2006] [Revised: 08/26/2006] [Accepted: 09/07/2006] [Indexed: 11/23/2022]
Abstract
The objective of the present study was to investigate the possibility of preserving mithun (Bos frontalis) spermatozoa at refrigeration temperature using tris-egg yolk diluent. Semen samples were collected from four adult mithun bulls through rectal massage method. Good quality semen samples (n=30) were preserved at 4 degrees C using tris-egg yolk diluent for 72 h. Progressive motility, live spermatozoa count and morphological abnormalities were evaluated every 12 h until 72 h of preservation. The colour, consistency and mass activity of fresh semen samples were found to be creamy white, medium and 3+ to 4+ (5+ scale), respectively. The average (mean+/-S.E.) volume (ml), pH and spermatozoa concentration (10(6) ml(-1)) of fresh semen samples were found to be 0.6+/-0.01, 6.8+/-0.03 and 425+/-48, respectively. Progressive motility and live spermatozoa count were found to be less than 30% (P<0.01) after 48 h of storage. Head (P<0.05), midpiece (P<0.05), tail (P<0.01) and total (P<0.01) abnormalities were found to be increased significantly over the time of storage. It was observed that progressive motility and live spermatozoa count remained above 30% and 40%, respectively, until 36 h of storage. Simultaneously the percentage of morphologically abnormal spermatozoa was found to be significantly low until 36 h of storage. The results indicate that it is possible to preserve mithun spermatozoa at refrigeration temperature in tris-egg yolk diluent, which can be further used for artificial insemination within 36 h of storage.
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Affiliation(s)
- M Karunakaran
- National Research Centre on Mithun, Medziphema, Nagaland, India
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Dhali A, Mishra DP, Mech A, Khate K, Rajkhowa C, Karunakaran M. Development and validation of a sensitive radioimmunoassay procedure for estimating FSH in mithun (Bos frontalis) plasma. J Immunoassay Immunochem 2007; 28:107-17. [PMID: 17424829 DOI: 10.1080/15321810701211635] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
The present study was designed to develop and validate a simple and sensitive radioimmunoassay (RIA) procedure to estimate FSH in mithun (Bosfrontalis) plasma. The assay was carried out in 100 [L of mithun plasma. The bovine FSH standards (10 to 5000 pg/100 microL/tube) in hormone-free plasma were used in the assay. The sensitivity of the assay was 20 pg/100 microL/tube, which corresponded to 0.20 ng/mL plasma. The 50% relative binding sensitivity of the assay was 80 pg/100 microL/tube, which corresponded to 0.80 ng/mL plasma. The intra- and inter-assay coefficients of variation were 4.6% and 12.4%, respectively. The biological validation of the assay was carried out in plasma samples that were collected during different stages of the estrous cycle. In the entire estrous cycle, plasma FSH concentration (p < 0.01) attained two peaks (on day 3 to 4 before estrus 5.1 +/- 0.3 ng/mL and on the day of estrus 6.9 +/- 0.2 ng/mL). FSH concentration remained at basal level (1.3 +/- 0.1 to 1.6 +/- 0.2 ng/mL) during day 4 to 16 of the estrous cycle. The concentration of plasma FSH was found to be significantly (p < 0.05) higher (4.9 +/- 0.3 to 6.8 +/- 0.5 ng/mL) until 48 h following the estrus onset. In conclusion, the RIA procedure that was developed in the current study is sufficiently reliable and sensitive to estimate different physiological levels of FSH in mithun plasma.
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Affiliation(s)
- A Dhali
- National Research Centre on Mithun, Medziphema, Nagaland, India.
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Dhali A, Mishra DP, Mech A, Karunakaran M, Rajkhowa C. Role of LH and prostaglandin F2alpha on the development and regression of corpus luteum in mithun (Bos frontalis) estrous cycle. Gen Comp Endocrinol 2006; 149:173-81. [PMID: 16828092 DOI: 10.1016/j.ygcen.2006.05.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2006] [Revised: 05/03/2006] [Accepted: 05/24/2006] [Indexed: 10/24/2022]
Abstract
The present investigation was designed to study the role of LH and prostaglandin F2alpha (PGF2alpha) on the development and regression of corpus luteum (CL) in the mithun estrous cycle. Blood samples were collected from jugular vein and PGF2alpha secretion was evaluated on the basis of peripheral 15-keto-13,14-dihydro-PGF2alpha (PGFM) concentration. The daily variations in plasma LH, PGFM, and progesterone (P4) concentrations throughout the estrous cycle were monitored in morning and evening blood samples. The variations in plasma LH, PGFM, and P4 concentrations during the early luteal phase were monitored in blood samples that were collected every 2 h until 120 h following the onset of estrus (Day 0). The pulsatile secretion patterns of plasma LH, PGFM and P4 during estrus (Day 1), mid-diestrus (Day 10), and luteolysis (Day 14) were assessed in blood samples that were collected every 15 min for 6h. In the estrous cycle, P4 concentration increased above basal level on day 6-7, peaked on day 10-12 and declined thereafter. Following estrus, a significant (P<0.01) gradual increase in P4 concentration was observed. LH concentration was found to be significantly (P<0.01) greater around estrus and it declined gradually (P<0.01) following estrus. In the estrous cycle, PGFM concentration increased above basal level on day 9-11, peaked on day 16-17, and declined thereafter. The frequency of LH pulses and basal LH concentration were found to be significantly (P<0.01) greater on day 1, but significantly (P<0.01) greater amplitude of LH pulses was found on day 10 and 14. The frequency of P4 and PGFM pulses was found to be significantly (P<0.01) greater on day 1. In contrast, the amplitude of P4 and PGFM pulses and basal P4 and PGFM concentrations were found to be significantly (P<0.01) greater on day 10 and 14. The results indicate that probably the early stages of CL development continued until day 5-6 of the estrous cycle and a fully functional CL existed approximately at the mid estrous cycle. Luteolysis probably started since day 11-13 of the cycle and completed before the onset of the next estrus. The elevated basal LH concentration along with frequent low amplitude LH pulses were probably required for the early stages of CL development. In contrast, the high amplitude LH pulses of lower frequency during the mid estrous cycle were either sufficient or not required for maintaining the luteal function. Whereas, PGF2alpha pulses of greater amplitude and elevated basal PGF2alpha concentration during the mid and late estrous cycle were probably responsible for luteolysis.
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Affiliation(s)
- A Dhali
- National Research Centre on Mithun, Medziphema, Nagaland, India.
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Dhali A, Mehla RK, Sirohi SK, Mech A, Karunakaran M. Monitoring Feeding Adequacy in Dairy Cows Using Milk Urea and Milk Protein Contents under Farm Condition. Asian Australas J Anim Sci 2006. [DOI: 10.5713/ajas.2006.1742] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Dhali A, Mishra DP, Karunakaran M, Mech A, Rajkhowa C. Secretion patterns of luteinising hormone, follicle-stimulating hormone and 17beta-oestradiol during oestrus and the mid-luteal phase of the oestrous cycle in mithun (Bos frontalis). Reprod Fertil Dev 2006; 18:619-26. [PMID: 16930508 DOI: 10.1071/rd06005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2006] [Accepted: 04/09/2006] [Indexed: 01/19/2023] Open
Abstract
The present study reports the pulsatile secretion of gonadotrophins and 17beta-oestradiol (OE2) on the day of oestrus and at the mid-luteal phase of the oestrous cycle in mithun (Bos frontalis). The frequency of luteinising hormone (LH) and follicle-stimulating hormone (FSH) pulses was found to be greater (P < 0.05) on the day of oestrus than at the mid-luteal phase. In contrast, the amplitude of the LH and FSH pulses was greater (P < 0.01) at the mid-luteal phase than on the day of oestrus. A synchronised (P < 0.01) LH and FSH secretion pattern was found only at the mid-luteal phase. A pulsatile secretion pattern for OE2 in the peripheral circulation was evident for both phases of the oestrous cycle. The frequency of the OE2 pulses did not differ significantly in different phases of the oestrous cycle. In contrast, the amplitude of the OE2 pulses and the basal OE2 concentration were found to be greater (P < 0.01) at the mid-luteal phase than on the day of oestrus. A synchronised (P < 0.01) LH and OE2 secretion pattern was observed in both phases of the oestrous cycle. In contrast, a synchronised (P < 0.05) FSH and OE2 secretion pattern was found only on the day of oestrus. In conclusion, a different pattern of LH and FSH secretion was observed in both phases of the oestrous cycle, mainly on the day of oestrus, which indicates a differential regulatory mechanism of LH and FSH release. In addition, as in cattle, OE2 exerts a positive feedback on LH and FSH release on the day of oestrus and on LH release at the mid-luteal phase of the oestrous cycle in mithun. Also, as in cattle, the greater basal plasma OE2 concentration and increased amplitude of OE2 pulses exert a negative feedback on FSH release at the mid-luteal phase of the oestrous cycle.
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Affiliation(s)
- A Dhali
- National Research Centre on Mithun, Medziphema, Nagaland 797106, India.
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Dhali A, Mishra DP, Mech A, Karunakaran M, Choudhury H, Khate K, Rajkhowa C. Changes in Plasma Concentrations of LH, FSH, Estradiol 17-beta and Progesterone During Oestrus in Mithun (Bos frontalis). Reprod Domest Anim 2006; 41:162-8. [PMID: 16519723 DOI: 10.1111/j.1439-0531.2006.00660.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The objective of the present study was to establish the changes in plasma concentrations of LH, FSH, estradiol 17-beta (E2) and progesterone (P4), as well as to understand their temporal relationships during oestrus in mithun (Bos frontalis). The experiment was conducted on 11 mithuns during third or fourth postpartum oestrous cycle. Since oestrus onset the jugular vein blood samples were collected every 2 h for 72 and 96 h, respectively from the animals without and with standing heat. The LH, FSH, E2 and P4 concentrations were estimated in plasma. The P4 concentration was fluctuated throughout the oestrus period and the average P4 concentration was found significantly (p<0.05) lower on the day of oestrus onset. The multiple rises in LH and FSH concentrations above the basal level in spike like fashion were observed throughout the oestrus period irrespective of the occurrence of standing heat. A significant (p<0.01) gradual increase in the average daily E2 concentration was observed till day 2 following oestrus onset irrespective of the occurrence of standing heat. A significant (p<0.05) simultaneous increase in LH, FSH and E2 concentrations and a transient increase in P4 concentration at approximately the time of standing heat onset were observed. During investigation a definite temporal coupling between LH and FSH rises was absent throughout the oestrus period. The results suggest that (1) the multiple short-duration low-amplitude LH and FSH surges during oestrus may be crucial for the final maturation of ovulatory follicle and subsequent ovulation in mithun; (2) a differential mechanism for controlling LH and FSH secretions probably exists in mithun.
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Affiliation(s)
- A Dhali
- N.R.C. Mithun, Medziphema, Nagaland, India.
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Dhali A, Mishra DP, Mech A, Karunakaran M, Rajkhowa C. Endocrine control of estrous cycle in mithun (Bos frontalis). Theriogenology 2005; 64:2010-21. [PMID: 15950273 DOI: 10.1016/j.theriogenology.2005.05.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2005] [Revised: 04/04/2005] [Accepted: 05/01/2005] [Indexed: 10/25/2022]
Abstract
The objective of the present study was to establish the profiles of luteinising hormone (LH), follicle stimulating hormone (FSH), estradiol 17beta (E2) and progesterone (P4) secretion and their interrelationships during the natural estrous cycle of mithun (Bos frontalis). Daily blood samples were collected from second or third postpartum estrous cycles for determination of plasma concentrations of LH, FSH, E2 and P4. Concentration of P4 was found to be lowest on the day of estrus. It increased following estrus, attained the highest concentration on day 11 and decreased thereafter. Concentrations of LH and FSH varied significantly (p<0.01) during the first and last 6 days of the cycle and their variations were found to be synchronised. Both LH and FSH attained a biphasic peak during the estrous cycle. This biphasic peak lasted on from day -5 to day 3 of the cycle. The variations in maximum LH and FSH concentrations of both the phases did not differ significantly. During the entire estrous cycle, the E2 concentrations attained either one peak or two peaks. The first peak, approximately on day 4 before estrus was common in all animals. One additional peak was found on the day of estrus in 45% animals. A significant (p<0.01) negative relationship was found between P4 and, LH and FSH during the first and last 6 days of cycle. But a significant (p<or=0.01) negative relationship between E2 and, LH and FSH was found only during the last 6 days of cycle. The results suggest a negative feedback mechanism on LH and FSH release by E2 and P4 during the respective phases of cycle. A sustained increase in LH and FSH levels during the period before estrus was probably necessary for the final maturation of ovulatory follicle and subsequent ovulation.
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Affiliation(s)
- A Dhali
- National Research Centre on Mithun, Jharnapani, Medziphema 797106, Nagaland, India.
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Mohanraj D, Padmanaban P, Karunakaran M. Effect of Phytotoxin of Colletotrichum falcatum Went. (Physalospora tucumanensis) on Sugarcane in Tissue Culture. ACTA ACUST UNITED AC 2003. [DOI: 10.1556/aphyt.38.2003.1-2.4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Maheshwari RK, Gupta BD, Karunakaran M, Panpalia SS, Bafna KC. Urolithiasis in children. Indian Pediatr 1987; 24:1073-6. [PMID: 3450656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Maheshwari RK, Gupta BD, Karunakaran M, Arora AK, Bhandari SR. Knowledge and attitudes of rural health personnel regarding infant feeding. Indian J Pediatr 1987; 54:930-4. [PMID: 3440603 DOI: 10.1007/bf02761027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Maheshwari RK, Gupta BD, Arora AK, Karunakaran M, Bhandari SR. Knowledge and attitude towards infant feeding among rural health personnel. Indian Pediatr 1987; 24:917-20. [PMID: 3448013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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Maheshwari RK, Karunakaran M, Gupta BD, Bhandari SR. Child labor. Indian Pediatr 1986; 23:701-4. [PMID: 3804422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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