Valentina Lorenzi

Dr. Valentina Lorenzi

orcid

Research Focus & Metrics

Academic Career Length

18Years (2009-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 February 2018 in Preventive Veterinary Medicine
Verified
Journal Article
Closed access
LBLuigi Bertocchi
Luigi Bertocchi
FFFrancesca Fusi
Francesca Fusi
AAAlessandra Angelucci
Alessandra Angelucci
LBLuca Bolzoni
Luca Bolzoni
SPStefano Pongolini
Stefano Pongolini
VLValentina Lorenzi
Valentina Lorenzi

9 September 2021 in Animals
Verified
Journal Article
Open access
PDF file
GVGiulia Ventura
Giulia Ventura
VLValentina Lorenzi
Valentina Lorenzi
FMFrancesca Mazza
Francesca Mazza
GCGianfilippo Alessio Clemente
Gianfilippo Alessio Clemente
CIClaudia Iacomino
Claudia Iacomino
FFFrancesca Fusi
Francesca Fusi
The concept of animal welfare (AW) has many meanings. Traditionally, AW has been considered as freedom from disease and suffering. Nowadays, growing attention goes to the concept of “positive animal welfare” (PAW), which can be interpreted within the concept of quality of life (QoL), thinking about a “balance of positives over negatives” and a “life worth living”. In this vision, where the QoL represents a continuum between positives and negatives, the Italian National Reference Centre for Animal Welfare (CReNBA), within the Istituto Zooprofilattico Sperimentale della Lombardia e dell’Emilia Romagna (IZSLER), has developed a welfare assessment protocol for dairy cows, heifers, and calves in loose housing systems, including both animal-based and non-animal-based indicators, in which not only hazards but also benefits are identified. This protocol is part of an integrated monitoring system called “ClassyFarm”, belonging to the Italian Ministry of Health and developed by IZSLER. The aim of this paper is to extrapolate from the mentioned protocol, a list of 38 best farming practices (on managerial and equipment factors) for ensuring a high level of welfare in dairy cattle. All stakeholders (veterinarians, farmers, competent authorities, consumers, etc.) can benefit of these best practices as a guide or toolbox to ensure a life worth living for these animals.

5 February 2020 in Journal of Agricultural and Food Chemistry
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Journal Article
Open access
VLValentina Lorenzi
Valentina Lorenzi
BABarbara Angelone
Barbara Angelone
EFEnrica Ferretti
Enrica Ferretti
AGAndrea Galli
Andrea Galli
MTMauro Tonoli
Mauro Tonoli
LBLuigi Bertocchi
Luigi Bertocchi
A feeding study was carried out to investigate the kinetics in cow milk of the 17 polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs), the 12 dioxin-like polychlorinated biphenyls (DL-PCBs), and the 6 non-dioxin-like PCBs (NDL-PCBs) regulated by the European (EU) legislation. A fortified ration (ΣPCDD/Fs and DL-PCBs: 24.68 ng TEQ/day/cow; ΣNDL-PCBs: 163.99 μg/day/cow) was given to the animals for 49 days, followed by 42 days on clean feed. EU maximum limit for TEQPCDD/F+DL-PCB was exceeded in milk after 1 week of exposure, while for ΣNDL-PCBs, after 5 weeks. Milk compliance was restored after 1 week on clean feed, but to return to the basal TEQPCDD/F+DL-PCB it took 42 days. At the end of the study, ΣNDL-PCBs had not yet reached the basal level. The carryover rate of ΣNDL-PCBs was 25.4%, while the carryover rate of TEQPCDD/F+DL-PCB was 36.9%. The latter was mainly affected by the 12 congeners contributing most to the toxic equivalent (TEQ) level, explaining the fast overcome of the maximum limit in milk.

24 March 2012 in Veterinary Record
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Journal Article
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Rachel PillaRachel Pilla
Rachel Pilla
VCV. Castiglioni
V. Castiglioni
Maria Elena GelainMaria Elena Gelain
Maria Elena Gelain
ESEugenio Scanziani
Eugenio Scanziani
VLValentina Lorenzi
Valentina Lorenzi
RPRenata Piccinini
Renata Piccinini
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1 February 2015 in Environmental Science and Pollution Research
Verified
Journal Article
Closed access
PDF file
LBLuigi Bertocchi
Luigi Bertocchi
Sergio GhidiniSergio Ghidini
Sergio Ghidini
GFGiorgio Fedrizzi
Giorgio Fedrizzi
VLValentina Lorenzi
Valentina Lorenzi

4 January 2022 in Animals
Verified
Journal Article
Open access
PDF file
MSMATTEO SANTINELLO
MATTEO SANTINELLO
ADAlessia Diana
Alessia Diana
MMMassimo De Marchi
Massimo De Marchi
FSFederico Scali
Federico Scali
LBLuigi Bertocchi
Luigi Bertocchi
Mauro PenasaMauro Penasa
Mauro Penasa
Judicious antimicrobial stewardship in livestock industry is needed to reduce the use of antimicrobials (AMU) and the associated risk of antimicrobial resistance. Biosecurity measures are acknowledged for their role against the spread of diseases and the importance in reducing AMU in different species. However, their effectiveness in beef production has been scarcely considered. The aim of this study was to investigate the effect of the quarantine strategy on AMU in beef cattle. A total of 1206 Charolaise animals in five farms were included in the trial. Roughly half of the animals followed the standard procedure of the fattening cycle (no-quarantine; NO-QUA group) and half followed a 30-day period of quarantine (QUA group) since their arrival. Performance and antimicrobial data were recorded and a treatment incidence 100 (TI100it) per animal was calculated. Penicillins was the most used class of antimicrobials. Differences between groups were significant for males only, with NO-QUA group having greater TI100it (3.76 vs. 3.24; p < 0.05) and lower body weight at slaughter (713.4 vs. 723.7 kg; p < 0.05) than QUA group. Results suggest that quarantine strategy can reduce AMU in males without compromising their performance, whereas further investigation is needed for females.