Rose Whelan

ORCID: 0000-0001-8812-403X
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About
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Research Areas
  • Animal Nutrition and Physiology
  • Gut microbiota and health
  • Probiotics and Fermented Foods
  • Biochemical effects in animals
  • Epigenetics and DNA Methylation
  • Coccidia and coccidiosis research
  • Aquaculture disease management and microbiota
  • Muscle metabolism and nutrition
  • Insect and Pesticide Research
  • Veterinary medicine and infectious diseases
  • Rabbits: Nutrition, Reproduction, Health
  • Inflammatory Bowel Disease
  • Parasites and Host Interactions
  • Antioxidant Activity and Oxidative Stress
  • Immune Cell Function and Interaction
  • Animal Behavior and Welfare Studies
  • Meat and Animal Product Quality
  • Amino Acid Enzymes and Metabolism
  • Algebraic and Geometric Analysis
  • Moringa oleifera research and applications
  • Mitochondrial Function and Pathology
  • Cancer Research and Treatments
  • Peroxisome Proliferator-Activated Receptors
  • Clostridium difficile and Clostridium perfringens research
  • Barrier Structure and Function Studies

Centre for Inflammation Research
2025

University of Edinburgh
2025

Evonik (Germany)
2017-2024

Evonik (United Kingdom)
2022-2024

Freie Universität Berlin
2014

Humboldt-Universität zu Berlin
2011

It was hypothesized that dietary inclusion of Bacillus subtilis DSM 32315 could inhibit Clostridium perfringens induced necrotic enteritis (NE), thereby improving broiler performance. Male, d 0 chicks were randomly assigned 14 birds/pen, 11 pens/treatment in 3 treatments: a basal diet (control), coccidiostat fed control (Narasin), and direct microbial (DFM) B. treatment. Necrotic all birds by oral inoculation Eimeria maxima oocysts on 12 virulent C. 16. Mortality reduced (P < 0.001) DFM...

10.3382/ps/pey500 article EN cc-by-nc-nd Poultry Science 2018-12-19

The effect of dietary inclusion Bacillus subtilis DSM 32315 on the intestinal health and growth performance Cobb 500 male broilers subjected to a Clostridium perfringens-induced necrotic enteritis (NE) challenge was determined in 2 experiments. In experiment 1, chicks were randomly assigned 4 treatments 10 replicate/treatment. 2, 12 replicates/treatment. experimental non-infected, non-supplemented control, infected, control (IC), infected + (B. 32315), bacitracin methylene disalicylate...

10.3382/ps/pez368 article EN cc-by-nc-nd Poultry Science 2019-06-27

New treatment strategies for inflammatory bowel disease are needed and parasitic nematode infections or application of helminth components improve clinical experimental gut inflammation. We genetically modified the probiotic bacterium Escherichia coli Nissle 1917 to secrete powerful immunomodulator cystatin in gut. This was tested a murine colitis model on post-weaning intestinal inflammation pigs, an outbred with gastrointestinal system similar humans. Application transgenic significantly...

10.1038/mt.2014.125 article EN cc-by-nc-nd Molecular Therapy 2014-07-02

Previous research has shown that dietary supplementation of Bacillus spp. probiotics exerts beneficial effects on animals' growth. However, limited studies have evaluated the efficacy weaned pigs and their host gut health microbiome, systemic immunity using a disease challenge model. The objective this experiment was to investigate two strains (Bacillus subtilis DSM 32540 pumilus 32539) growth performance, diarrhea, intestinal health, experimentally infected with an enterotoxigenic...

10.1186/s40104-020-00498-3 article EN cc-by Journal of Animal Science and Biotechnology/Journal of animal science and biotechnology 2020-09-15

Abstract Broilers stocked in high densities may be prone to oxidative and inflammatory insults, resulting impaired health status, growth performance, meat quality. This study was determine if 30% extra supplemental dl-methionine alleviated or prevented those adverse effects of a higher stocking density broiler chickens. A total 560 male Cornish Cross cockerels (day old) were divided into four groups: two (9 12 birds/m2) supplementations methionine (grower: 2.90 3.77 g/kg finisher: 2.60 3.38...

10.1093/jas/skaa092 article EN Journal of Animal Science 2020-03-23

Abstract The domestic chicken ( Gallus gallus domesticus ) is the globally most important source of commercially produced meat. While genetic approaches have played an role in development stocks, little known about epigenetics. We systematically analyzed DNA methylation machinery and landscape. overall distribution was similar to mammals, sperm appeared hypomethylated, which correlates with absence DNMT3L cofactor genome. Additional analysis revealed presence low-methylated regions, are...

10.1038/s42003-020-01608-7 article EN cc-by Communications Biology 2021-01-18

Abstract Background Mitochondrial dysfunction has been implicated in the pathogenesis of inflammatory bowel disease (IBD) particularly paediatric-onset IBD (PIBD).1,2 Circulating cell-free DNA (cfDNA) and mitochondrial (mtDNA) are damage-associated molecular patterns (DAMPS) released into bloodstream during tissue damage cell death can be detected peripheral blood samples.3 Recent studies have suggested that levels cfDNA mtDNA may correlate with activity adult IBD4 but their utility...

10.1093/ecco-jcc/jjae190.0239 article EN Journal of Crohn s and Colitis 2025-01-01

Abstract This study was to explore metabolic effects of two forms and concentrations supplemental methionine in grower finisher diets for broiler chickens raised at high temperature. Male Cornish cockerel chicks (total = 360, day-old) were divided into four groups (10 pens/treatment, 9 chicks/pen) fed with 100% or 130% required the as DL-methionine (DL-MET) 2-hydroxy-4-(methylthio)butanoate (HMTBA). The room maintained 4 13 °C above suggested thermoneutral higher concentration both DL-MET...

10.1093/jas/skz348 article EN Journal of Animal Science 2019-11-09

This study investigated the hypothesis that supplementation of methionine (Met) to broiler diets increases muscle growth due regulation molecular pathways related protein synthesis and degradation depending on Met source. Day-old male Cobb-500 broilers (n = 240) were phase-fed three different wheat-soya bean meal-based basal during days 1-10, 11-21 22-35. Basal (Met- group, + Cys concentration 15% below NRC recommendations) supplemented with 0.10% or 0.40% either as DL-Met (DLM)...

10.1111/jpn.13026 article EN Journal of Animal Physiology and Animal Nutrition 2018-11-20

Research has shown that methionine+ cysteine (M+C) requirements may be higher when chickens are infected with Eimeria app. In a 4 × 2 factorial design, broilers (11 to 21 D) were fed one of corn–soybean meal-based diets containing either 0.6, 0.8, 0.9, or 1.0% standardized ileal digestible (SID) M+C; on day 14, from each diet gavaged phosphate-buffered saline (PBS) commercial coccidiosis vaccine (at 100 dose) which provide mixture live acervulina, maxima, and tenella oocysts. Growth...

10.3382/ps/pez503 article EN cc-by-nc-nd Poultry Science 2019-09-06

Methylsulfonylmethane (MSM) is an organic, sulfur-containing compound widely used as a dietary supplement to improve joint health and treat arthritic pain. An experiment was conducted study the effects of feeding 0.05% MSM broilers exposed diet-induced oxidative stress on tissue distribution, growth performance, biomarkers, immune responsivity. A total 528 birds were allocated 4 treatments (fresh oil-no MSM, fresh oil-MSM, oxidized oil-MSM) provided ad libitum 11 replicate cages 12 per...

10.1016/j.psj.2019.12.010 article EN cc-by-nc-nd Poultry Science 2020-01-22

Crude protein (CP) levels in commercial broiler (Gallus gallus) diets, optimized for maximum yield production vs. feed cost, have only begun to be assessed impact on immune function. In order study effects of dietary CP levels, different starter phase (day 1 14) diets were fed 230 Ross 708 male chicks randomly assigned at 1-day age into 2 treatment groups. Group 1: Standard diet (STD) contained 3000 kcal AMEn/kg energy and 23.78 % 2: Reduced crude (RCP) 21.23 CP. From day 15 35 a common...

10.3389/fvets.2020.00436 article EN cc-by Frontiers in Veterinary Science 2020-08-07

Exposure to high ambient temperature has been shown impair growth performance and cause oxidative stress in broilers. This study investigated the hypothesis that supplementation with methionine (Met) as DL-Met (DLM) more than National Research Council recommendations improves alleviates broilers exposed temperature. One-day-old male Cobb-500 (n = 68) were allotted 4 groups phase-fed 3 basal diets during days 1 10, 11 21, 22 35. One group was kept under thermoneutral conditions received Met +...

10.1016/j.psj.2020.08.082 article EN cc-by-nc-nd Poultry Science 2020-09-14

Alternative methods to alleviate coccidiosis in broilers are of interest producers, including dietary strategies minimize disruptions growth rate and efficiency when faced with health challenges. Our objective was determine optimal combinations starch, amino acids (AA), oil benefit productivity experiencing Eimeria-induced immune activation. Two trials were conducted using 1,536 male Ross 308 broiler chicks floor pens randomly assigned 1 17 experimental treatments. All birds received common...

10.1016/j.psj.2023.103335 article EN cc-by-nc-nd Poultry Science 2023-12-01

Abstract DNA methylation is an important epigenetic modification that widely conserved across animal genomes. It accepted patterns can change in a context-dependent manner, including response to changing environmental parameters. However, this phenomenon has not been analyzed livestock yet, where it holds major potential for biomarker development. Building on the previous identification of population-specific clonal marbled crayfish, we have now generated numerous base-resolution methylomes...

10.1093/eep/dvad001 article EN cc-by-nc Current Zoology 2023-01-01

Introduction.The principle of Rayleighf, which is used by physicists to obtain practical solutions certain boundary problems, assumes that the system under consideration may be replaced an approximating algebraic so chosen difference between two systems negligible.It evident value this depends not only on possibility choosing can easily solved, but also estimating order solutions.In a paper published in 1923, M. PlancherelJ presented justification use as for second self adjoint linear...

10.1090/s0002-9904-1929-04704-9 article EN Bulletin of the American Mathematical Society 1929-01-01

An experiment was conducted to investigate the toxicity and tissue distribution of methylsulfonylmethane (MSM) following oral gavage in broilers. A total four hundred thirty-two 15-day-old Ross 308 male broilers were allotted 6 treatments with replicates 12 birds per replicate administered a single dose MSM at 0, 50, 100, 300, 1,000, or 2,000 mg/kg BW (Study 1). Another one sixty-eight 3-day-old chicks either control test group 2) daily 0 1, 500 for 21 D consecutively. Blood samples...

10.3382/ps/pez265 article EN cc-by-nc-nd Poultry Science 2019-05-21

Significant changes in growth potential and feed conversion have been bred into the modern broiler chicken for well over 60 yr. These metabolic had significant effects on immune performance as well. To better understand these genetic differences immunometabolism we studied response of Athens Canadian Random Bred (ACRB) heritage strain. We injected newly hatched ACRB chicks intraabdominally with CpG oligonucleotide, an immunostimulatory synthetic oligonucleotide. conducted species-specific...

10.1016/j.psj.2022.101775 article EN cc-by-nc-nd Poultry Science 2022-02-11

Abstract Background Given the key role of methionine (Met) in biological processes like protein translation, methylation, and antioxidant defense, inadequate Met supply can limit performance. This study investigated effect different dietary sources on expression profile various transporters along gastrointestinal tract (GIT) pigs. Methods A total 27 pigs received a diet supplemented with 0.21% DL-Met, L-Met, or 0.31% DL-2-hydroxy-4-(methylthio)butanoic acid (DL-HMTBA). Changes mRNA B 0 AT1 ,...

10.1186/s12263-021-00694-4 article EN cc-by Genes & Nutrition 2021-09-06

Coccidia vaccination is a common practice in the poultry industry. However, research lacking regarding optimal nutritional support for coccidia vaccinated broilers. In this study, broilers were with oocyst at hatch and fed starter diet from 1 to 10 d. On d 11, randomly assigned groups 4 × 2 factorial arrangement. Briefly, one of four diets containing 0.6, 0.8, 0.9, 1.0% standardized ileal digestible methionine plus cysteine (SID M+C), respectively, 11 21 14, each group orally gavaged either...

10.1016/j.psj.2023.102557 article EN cc-by Poultry Science 2023-02-03
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