Ajeet Kumar

ORCID: 0000-0003-0632-2249
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Research Areas
  • Reproductive Physiology in Livestock
  • Genetic and phenotypic traits in livestock
  • Sperm and Testicular Function
  • Reproductive Biology and Fertility
  • Effects of Environmental Stressors on Livestock
  • Reproductive biology and impacts on aquatic species
  • Animal health and immunology
  • Congenital Anomalies and Fetal Surgery
  • Pesticide Exposure and Toxicity
  • Veterinary Medicine and Surgery
  • Animal Genetics and Reproduction
  • Ruminant Nutrition and Digestive Physiology
  • Livestock Management and Performance Improvement
  • Plant Physiology and Cultivation Studies
  • Anesthesia and Pain Management
  • Functional Brain Connectivity Studies
  • Insect and Pesticide Research
  • Dementia and Cognitive Impairment Research
  • Animal Diversity and Health Studies
  • Selenium in Biological Systems
  • Birth, Development, and Health
  • Seed Germination and Physiology
  • Analytical Chemistry and Chromatography
  • Mosquito-borne diseases and control
  • Liver Disease Diagnosis and Treatment

Defence Research and Development Establishment
2010-2025

Guru Angad Dev Veterinary and Animal Sciences University
2016-2025

Mithila Minority Dental College And Hospital
2024

All India Institute of Medical Sciences
2022-2024

Central Drug Research Institute
2023-2024

Rama University
2024

Nagaland University
2024

Banaras Hindu University
2013-2023

Liaquat University of Medical & Health Sciences
2023

All India Institute of Medical Sciences Raipur
2022

Cognitive ability of minor depressed patients (N=28), major (N=26) and healthy elderly (N=38) was examined cross-sectionally to determine if cognitive abilities with late-onset depression decrease increasing severity disease scores for fall between those patients. A pooled within-group principal component analysis test identified five components, three which showed significant group differences. Verbal Recall Maintenance Set separated controls from Executive Functioning patients, Working...

10.1016/s0887-6177(03)00022-2 article EN Archives of Clinical Neuropsychology 2003-03-25

Executive function, known to be impaired during late-life depression, is dependent on frontostriatal pathways. Memory also frequently observed among depressed patients, so we assessed the possibility that executive function mediates learning and recall deficit as a "downstream" effect of compromise in function. A cross-sectional sample minor major patients (N=95) nondepressed volunteers (N=71), screened for other Axis I disorders, dementia, medical comorbidity, severity completed...

10.1016/j.acn.2006.05.011 article EN Archives of Clinical Neuropsychology 2006-08-15

Executive function, known to be impaired during late-life depression, is dependent on frontostriatal pathways. Memory also frequently observed among depressed patients, so we assessed the possibility that executive function mediates learning and recall deficit as a “downstream” effect of compromise in function. A cross-sectional sample minor major patients (N=95) nondepressed volunteers (N=71), screened for other Axis I disorders, dementia, medical comorbidity severity completed...

10.1016/j.acn.2007.01.021 article EN Archives of Clinical Neuropsychology 2007-02-01

The aim of this study was to identify characteristics neuropsychological functioning among type 2 diabetic adults with and without major depression. Twenty diabetics depression, 20 non-depressed 34 controls diabetes or depression were compared. A mixed effects repeated measures analysis covariance indicated significant differences in overall cognitive between diagnostic groups, specifically depressed demonstrated greater dysfunction than controls. Further comparisons that performed...

10.1016/j.acn.2006.06.014 article EN Archives of Clinical Neuropsychology 2006-10-10

SUMMARY Early estimation of bull fertility is highly desirable for the conservation male genetics endangered species and exploitation genetically superior sires in artificial insemination programs. The present work was conducted as a proof‐of‐principle study to identify fertility‐associated metabolites dairy seminal plasma blood serum using proton nuclear magnetic resonance ( 1 H NMR). Semen samples were collected from high‐ low‐fertility breeding bulls (n = 5 each), stationed at Semex,...

10.1002/mrd.22450 article EN Molecular Reproduction and Development 2015-01-14

This study evaluated the efficacy and toxicity of various pesticides against Aceria litchii (Keifer), a major pest threatening litchi production in Bihar, through integrated laboratory field trials. Laboratory bioassays, based on modified Voss–Dittrich method, determined LC₅₀ values relative for nine pesticides, revealing that sulphur dicofol exhibited superior with lowest highest toxicity, while tetradifon malathion were less effective. Field evaluations conducted over two consecutive years...

10.9734/jabb/2025/v28i42200 article EN Journal of Advances in Biology & Biotechnology 2025-04-14

The study evaluated the effect of lengthening superstimulation protocol (4 Day vs 6 Day) on superovulatory response and embryo production in Sahiwal cows, there is no literature regarding this comparative evaluation. cows were randomly divided into two groups viz. short FSH group (Group1; 4D FSH; n=6) long (Group 2; 6D n=6). Animals both administered injection estradiol benzoate (@ 2 mg) progesterone 50 mg/ animal) intramuscularly along with insertion an intravaginal device (progesterone...

10.48165/ijar.2025.46.01.8 article EN The Indian Journal of Animal Reproduction 2025-04-14

The objective of this study was to compare different extenders for post-thaw in vitro sperm function and vivo fertility buffalo semen. Accordingly, 30 ejaculates extended egg yolk (TRIS with 20% yolk; EY), two soya lecithin-based (SL-1; AndroMed® SL-2; Bioxcell® ) a liposome-based extender (LS; OptiXcell® were tested. semen evaluated computer-assisted analysis (CASA), viability, membrane acrosome integrity, DNA integrity reaction first service pregnancy rate (FSPR) fixed-time artificial...

10.1111/rda.13092 article EN Reproduction in Domestic Animals 2017-10-28

Heparin binding proteins (HBPs) are produced by accessory glands. These secreted into the seminal fluid, bind to spermatozoa at time of ejaculation, favour capacitation, acrosome reaction, and alter immune system response toward sperm. The present study was conducted with an objective assess effect purified plasma-HBPs (SP-HBPs) on cross bred cattle bull sperm attributes during two phases cryopreservation: Pre freezing freezing-thawing. SP-HBPs were from pooled plasma heparin affinity...

10.5713/ajas.15.0586 article EN cc-by Asian-Australasian Journal of Animal Sciences 2015-09-11

Aim: This study was aimed at evaluating the anti-apoptotic effects of Bcl-2 protein in cryopreserved buffalo bull sperm. Materials and Methods:A total 10 ejaculates from two bulls (5 each) were collected using artificial vagina method, semen evaluated a standard protocol.Semen extended by Tris egg yolk extender supplemented with 5, 10, 15 μM.Semen ultra-low temperature traditional vapor freezing method.Prefreeze post-thaw samples for percent motility, viability, hypo-osmotic swelling test...

10.14202/vetworld.2016.432-436 article EN cc-by Veterinary World 2016-05-01

Summary The global demand for dehydrated onion is on the rise, driven by increasing consumer preference ready‐to‐eat convenience foods. This study focused enhancing quality and functional properties of slices (cv. Pusa Shobha) through different pre‐treatment drying conditions. Fresh were subjected to using NaCl (3%, 5% 7%) KMS (0.3%, 0.5% 0.7%) solutions 10 min, followed tray at 50 °C, 60 °C 70 temperatures varying durations 14, 12 h, respectively. Based physicochemical properties,...

10.1111/ijfs.17334 article EN International Journal of Food Science & Technology 2024-07-01

A total of 130 animals (82 cattle, 48 buffaloes) with histories anestrous 60-90 days post-partum and belonging to different agroclimatic zones Punjab were subjected rectal palpation blood samplings at least three times weekly intervals. The body condition score (BCS) each animal was also recorded. divided into two groups; viz., true (Gp-I) subestrus (Gp-II) through ovaries plasma progesterone (P4) concentrations. Furthermore, the Gp I II treatment (Gp Ia, 40 cattle 16 buffaloes; IIa, 12 14...

10.1292/jvms.70.1327 article EN cc-by-nc-nd Journal of Veterinary Medical Science 2008-01-01
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