Laia Blavi

ORCID: 0000-0003-4292-7245
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About
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Research Areas
  • Animal Nutrition and Physiology
  • Animal Behavior and Welfare Studies
  • Trace Elements in Health
  • Livestock and Poultry Management
  • Phytase and its Applications
  • Meat and Animal Product Quality
  • Gut microbiota and health
  • Rabbits: Nutrition, Reproduction, Health
  • Pharmaceutical and Antibiotic Environmental Impacts
  • Drug Transport and Resistance Mechanisms
  • Nutrition, Genetics, and Disease
  • Olfactory and Sensory Function Studies
  • Agriculture Sustainability and Environmental Impact
  • Plant Micronutrient Interactions and Effects
  • Agricultural Systems and Practices
  • Ruminant Nutrition and Digestive Physiology
  • Child Nutrition and Water Access
  • Molecular Biology Techniques and Applications
  • Animal Diversity and Health Studies
  • Ginger and Zingiberaceae research
  • Salmonella and Campylobacter epidemiology
  • Animal health and immunology
  • Effects of Environmental Stressors on Livestock
  • Biochemical Analysis and Sensing Techniques
  • Probiotics and Fermented Foods

AB Neo (Czechia)
2024

Universitat Autònoma de Barcelona
2016-2023

University of Illinois Urbana-Champaign
2017-2022

University of Illinois System
2020

Evonik (Germany)
2020

Urbana University
2018

Feed additives have been suggested to improve animal growth performance through modulating the gut microbiota. The hypothesis of this study was that combination two organic acids would exert synergistic effects on and microbiota weaning pigs. To test hypothesis, we followed 398 pigs from university experiment stations (University Illinois at Urbana-Champaign (UIUC) University Arkansas (UA)) determine increasing levels (0%, 0.035%, 0.070%, 0.105%) sodium butyrate combined with 0.5% benzoic...

10.3390/microorganisms9010110 article EN cc-by Microorganisms 2021-01-05

An experiment was conducted to test the hypothesis that inclusion of direct fed microbial Clostridium butyricum in diets for weanling pigs will improve growth performance, systemic immune function, microbiota composition, and gut morphology weaned pigs. A total 275 newly (20 ± 2 d age) with an average initial BW 6.4 0.8 kg were allotted a randomized complete block design 11 pens per treatment. Diets included positive control diet containing Carbadox, negative without three treatment which...

10.1093/jas/skz372 article EN Journal of Animal Science 2019-12-10

Restrictions on antibiotic growth promoters have prompted livestock producers to use alternative promoters, and dietary copper (Cu) supplementation is currently being widely used in pig production. However, elevated doses of Cu constitute a risk for co-selection resistance the may depend type Cu-based feed additives used. We here report first controlled experiment investigating impact two contrasting overall swine gut microbiome resistome. DNA was extracted from fecal samples (n = 96)...

10.1016/j.scitotenv.2022.159609 article EN cc-by The Science of The Total Environment 2022-10-21

An experiment was conducted to determine the effects of two sources copper (Cu) from sulfate (CuSO4) and dicopper oxide (Cu2O, CoRouge) at three levels inclusion (15, 75, 150 mg/kg) on growth performance gut microbiota broilers. A total 840 one-d-old male chickens (Ross 308) were weighed randomly allocated seven dietary treatments: negative control (NC, a basal diet without Cu addition), NC supplemented with 15, or mg Cu/kg CuSO4 Cu2O (12 replicate pens/treatment, 10 chicks per pen)....

10.1016/j.psj.2021.101224 article EN cc-by Poultry Science 2021-04-27

An experiment was conducted to test the hypothesis that inclusion of Zn at a pharmacological level in diets fed pigs affects apparent total tract digestibility (ATTD) Ca and P standardized (STTD) Ca. The second microbial phytase increases ATTD STTD regardless concentration diet. Fifty-six growing barrows (15.4 ± 1.9 kg average BW) were allotted randomized complete block design with 7 dietary treatments 8 per treatment. A maize-based basal diet formulated either 0 or 2,400 mg/kg from ZnO 0,...

10.2527/jas.2016.1149 article EN Journal of Animal Science 2017-01-01

The early exposure of the fetus to certain volatiles may result in a further preference for these compounds later life and could positively affect acceptance feed containing similar flavor zootechnical responses. study consisted 2 trials determine if including Fluidarom 1003 (a commercially flavored additive >25% anethol cinnamaldehyde >10% eugenol; Norel S.A., Madrid, Spain, Spain) sow postweaning piglet diets 1) provokes presence or absence 3 major volatile (anethol, cinnamaldehyde,...

10.2527/jas.2016-0760 article EN Journal of Animal Science 2016-11-17

The objective of this experiment was to test the hypothesis that apparent ileal digestibility (AID) AA, CP, and GE, total tract (ATTD) CP hindgut GE by growing pigs may be improved supplementing diets with two direct-fed microbials (DFM) containing different Bacillus strains. Twenty-four barrows (initial BW: 22.69 ± 1.48 kg) had a T-cannula installed in distal ileum were individually housed randomly allotted three diet, period design 24 21-d periods. There eight per diet each for...

10.1093/jas/sky432 article EN Journal of Animal Science 2018-11-16

Abstract Two experiments were conducted to test the hypothesis that a corn-expressed phytase increases growth performance, bone measurements, and nutrient digestibility by young growing pigs, if added diets are deficient in Ca P. In Exp. 1, 60 pigs (initial BW: 10.78 ± 0.67 kg) randomly allotted 6 dietary treatments included positive control diet (PC; 0.70% total 0.60% P) negative (NC; 0.50% 0.42% P). Four additional formulated supplementing NC with 250, 500, 1,000, or 1,500 units (FTU)/kg....

10.1093/jas/skz190 article EN Journal of Animal Science 2019-06-03

The hypothesis was that apparent ileal digestibility (AID), basal endogenous losses, and standardized (SID) of amino acids (AA) are not affected by adding acid to collection containers or bags used collect digesta from pigs.Twenty-four growing barrows (initial body weight: 77.8±4.5 kg) were fitted with a T-cannula in the distal ileum fed diets for three 7-d periods. An N-free diet 3 containing corn, soybean meal, wheat middlings as sole source AA used. Within each period, 4 6 pigs. Among...

10.5713/ab.20.0838 article EN cc-by Animal Bioscience 2021-03-02

Abstract Two experiments were conducted to compare the standardized ileal digestibility (SID) of AA by growing pigs in European distillers dried grains with solubles (DDGS) produced from wheat, maize, or wheat–maize mixtures and test effect increasing inclusion levels wheat DDGS on growth performance growing-finishing fed diets balanced for NE SID Lys. In Exp. 1, 12 barrows (initial BW: 23.0 ± 2.2 kg) surgically equipped a T-cannula distal ileum randomly allotted replicated 6 × Latin square...

10.1093/tas/txz005 article EN cc-by-nc Translational Animal Science 2019-03-01

Abstract The beneficial effect of elevated concentrations copper (Cu) on growth performance pigs has been already demonstrated; however, their mechanism action is not fully discovered. objective the present experiment was to investigate effects including Cu from sulfate (CuSO4) or monovalent oxide (Cu2O) in diet growing oxidative stress, inflammation, gene abundance, and microbial modulation. We used 120 with initial body weight (BW) 11.5 ± 0.98 kg 2 blocks 60 pigs, 3 dietary treatments, 5...

10.1093/jas/skac224 article EN cc-by-nc Journal of Animal Science 2022-06-20

An experiment was conducted to test the hypothesis that inclusion of Cu oxide (Cu2O) in diets for growing-finishing pigs improves body weight (BW) and bone mineralization, reduces accumulation liver compared with fed containing sulfate (CuSO4). Two hundred growing (initial BW: 11.5 ± 0.98 kg) were allotted a randomized complete block design 2 blocks 100 pigs, 5 dietary treatments, per pen, total 8 pens treatment. Treatments included negative control (NC) diet contained 20 mg Cu/kg, 4 which...

10.1093/jas/skab127 article EN Journal of Animal Science 2021-04-21

Abstract Two studies were conducted to determine the effects of a novel Escherichia coli phytase expressed in Pseudomonas fluorescens on growth performance, bone mineralization, and nutrient digestibility pigs fed corn-soybean meal diets. In experiment 1, 160 nursery (9.79 ± 1.22 kg) randomly allotted one four treatments with 10 pens per treatment pen. Phase I phase II diets provided from d 0 14 28, respectively. Treatments included: positive control (PC) all nutrients meeting requirements;...

10.1093/tas/txaa201 article EN cc-by Translational Animal Science 2020-10-01

Abstract There are several Cu sources in the market that have different effects on pigs. We hypothesized supplementing therapeutic doses of Cu(I)oxide (Cu2O) diets for growing pigs improves body weight (BW), bone mineralization, and reduces accumulation liver than with sulfate (CuSO4). Two-hundred (initial BW: 11.5 ± 0.98 kg) were randomly allotted to 5 dietary treatments. Dietary treatments included negative control (NC) diet without supplementation, 4 which 125 or 250 mg/kg from CuSO4 Cu2O...

10.1093/jas/skab235.382 article EN Journal of Animal Science 2021-10-08

An experiment was conducted to compare effects of a novel phytase (GraINzyme, Agrivida, Woburn, MA) with commercial (AxtraPhy, Danisco Animal Nutrition, Marlborough, UK) on growth performance and bone parameters. A total 48 individually housed pigs (initial BW: 11.15 ± 0.85 kg) were randomly allotted 6 diets 8 replicate per diet. Treatment fed for 28 d included positive control diet (PC; 0.70% Ca 0.59% P) that met requirements all nutrients (NRC, 2012), negative (NC) similar PC except P...

10.1093/jas/sky073.272 article EN Journal of Animal Science 2018-04-01

Abstract Farrowing is associated with inflammation and increasing oxidative stress status. In addition, during farrowing, calcium requirement increases to support uterine contraction. We have previously observed that feeding a combination of feed additives (FA), contains inulin, Bacillus velezensis, extracts olive oil artichoke, calcitriol, reduced the duration assistance farrowing in sows, number stillborn piglets. It was hypothesized FA would reduce provide Ca contractions farrowing. A...

10.1093/jas/skae102.195 article EN Journal of Animal Science 2024-05-01

These studies address the challenge of post-weaning diarrhea (PWD) in piglets, a common and costly health issue exacerbated by recent European Union ban on therapeutic zinc oxide. The research evaluates whether spray-dried plasma (SDP), sustainable highly digestible protein source, can mitigate PWD without compromising piglet growth. Two concurrent were conducted farms using either low-protein or normal-protein diets, with SDP included varying phases early feeding. Diets improved growth...

10.20944/preprints202410.2352.v1 preprint EN 2024-10-30

Three trials were undertaken to provide an answer different questions: 1) Are suckling pigs able maintain physiological serum Zn levels throughout lactation and do these vary between high low body weight (BW) pigs?, 2) in soon after weaning a predisposing factor for diarrhea?, 3) Is it possible increase at by supplementing during lactation. In trial 1, blood samples taken from Eight (one piglet per litter) had drawn on days 0 (farrowing), 7, 14, 21, 28 (weaning), 60 (selected the whole...

10.1093/jas/skad396 article EN Journal of Animal Science 2023-11-29

Piglets have a low acidification capacity that may promote digestive disorders and diarrhea. The inclusion of CaCO3 ZnO with high acid-binding in weanling diets can aggravate the problem. It was hypothesized reducing levels Ca from 0.95% to 0.35% (no addition CaCO3) improve growth piglets after weaning. A total 240 were distributed into 3 treatments during pre-starter phase (0 14 d postweaning; 8 replicates per treatment). Treatments based on different Calcium levels: High (HCa) (1.55%...

10.2527/msasas2016-300 article EN Journal of Animal Science 2016-04-01

Two double-choice feeding experiments were conducted to study the effect of stevia extracts (SE) and neohesperidine dihydrochalcone (NHDC) on feed preference in piglets. Pigs (14 35 d postweaning) offered a series double choices between common reference diet (R, containing 4% sucrose) experimental diets (containing maltodextrin plus different doses SE SE+NHDC). In Exp. 1, 0, 100, 200, 300, 400, 500 ppm (T1 T6); 2, dose was 150 3, 4 or 5 NHDC T5). The two (R T1 T6) pens 3 piglets following...

10.2527/jas.2015-9810 article EN Journal of Animal Science 2016-09-01

It is common to use 2500–3000 ppm Zn as ZnO prevent post-weaning diarrhea. However, most of the dietary supply excreted, causing environmental accumulation, and recently antimicrobial resistance concerns have also increased. Phytate supplementation in piglet diets may create insoluble salts with several divalent cations (Ca, P, Zn) inhibiting their absorption. Therefore, objective present experiment was observe effect interaction between therapeutic doses phytase on growth performance...

10.2527/jam2016-0925 article EN Journal of Animal Science 2016-10-01

An experiment was conducted to test the hypothesis that inclusion of Zn at a pharmacological level in diets fed pigs affects apparent total tract digestibility (ATTD) Ca and P standardized (STTD) Ca. The second microbial phytase increases ATTD STTD regardless concentration diet. Fifty-six growing barrows (15.4 ± 1.9 kg average BW) were allotted randomized complete block design with 7 dietary treatments 8 per treatment. A maize-based basal diet formulated either 0 or 2,400 mg/kg from ZnO 0,...

10.2527/jas2016.1149 article EN Journal of Animal Science 2017-01-01
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