Laura Valadão Vieira

ORCID: 0000-0003-4079-8128
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About
Contact & Profiles
Research Areas
  • Ruminant Nutrition and Digestive Physiology
  • Genetic and phenotypic traits in livestock
  • Effects of Environmental Stressors on Livestock
  • Reproductive Physiology in Livestock
  • Viral gastroenteritis research and epidemiology
  • Animal health and immunology
  • Animal Behavior and Welfare Studies
  • Soil Management and Crop Yield
  • Crop Yield and Soil Fertility
  • Agricultural and Food Sciences
  • Fermentation and Sensory Analysis
  • Horticultural and Viticultural Research
  • Rural Development and Agriculture
  • Clostridium difficile and Clostridium perfringens research
  • Meat and Animal Product Quality
  • Sensory Analysis and Statistical Methods
  • Milk Quality and Mastitis in Dairy Cows
  • Environmental and biological studies

Universidade Federal de Pelotas
2020-2025

Universidade Federal do Pampa
2019

This study aimed to evaluate the effect of marine-based rumen buffer (Lithothamnium calcareum) supplementation on health as well milk yield and composition also behavioural metabolic parameters dairy cows. Thirty-six lactating multiparous Holstein cows were used with a average 39 kg/d 64 d in milk. The experiment was conducted over 60 using two groups: control (CON; n = 18) supplemented sodium bicarbonate at 1.1% dry matter treatment group that received Lithothamnium calcareum 0.5% (LITHO;...

10.1017/s0022029925000081 article EN Journal of Dairy Research 2025-03-06

This study aimed to verify the effect of butaphosphan combined with cyanocobalamin (B+C) on dry matter intake (DMI) and milk yield in high producing dairy cows. Eighteen multiparous Holstein cows managed a compost barn system were enrolled calving date remained under observation until 28 days (DIM). The B+C group administered at 2500 mg 1.25 (25 mL/cow/day, n = 9), or control (NaCl 0.9% 25 9,) receiving injections calving, day 3 7 post-partum. DMI, feed efficiency, DMI/% body weight...

10.33448/rsd-v11i4.27045 article EN Research Society and Development 2022-03-24

ABSTRACT: This study evaluated the effect of tannin extract from Acacia mearnsii on intravaginal temperature, production and milk composition Holstein cows in a subtropical environment. The period was 29 days 20 multiparous were selected with an average 50 ± 6 kg/day 147 83 milk. separated into two treatments: Control (n = 10) did not receive dietary supplementation. Tannin received Condensed (Tanac S.A., Montenegro, RS, Brazil) at dose 0.19% dry matter (40 g/cow/day). Animals monitored for...

10.1590/0103-8478cr20230367 article EN cc-by Ciência Rural 2024-01-01

O objetivo do estudo foi estimar a produção de metano (CH4) partir das proporções ácidos graxos voláteis (AGV) no fluido ruminal e determinar sua relação com o consumo matéria seca (CMS) em vacas leiteiras suplementadas Lithothamnium calcareum. Seis lactantes multíparas da raça Holandesa, foram distribuídas dois grupos experimentais, grupo controle (CON; n=3) suplementada 1,1% MS bicarbonato sódio; calcareum (LITHO; n=3), 0,5% Coletas líquido realizadas uma vez por semana para avaliação pH...

10.5965/223811712342024776 article PT cc-by Revista de Ciências Agroveterinárias 2024-12-18

Background: Mastitis is an inflammatory disease of the mammary gland, mostly associated with bacterial infections. It responsible for great economic losses due to decreased milk yield, discarded milk, composition alterations and treatment costs, besides it impairs animal health welfare. The rumination time important behavioral marker its assessment can be used as early diagnosis tool, which improve cure rate. Therefore, aim present study was evaluate sensitivity behavior monitoring system...

10.22456/1679-9216.108269 article EN ACTA SCIENTIAE VETERINARIAE 2021-01-01

This study was developed to evaluate the clinical, hematological, and performance parameters of calves affected by diarrhea caused bacterial enteric pathogen Escherichia coli, treated with three different protocols containing sulfonamides. Fourteen Holstein were monitored from birth 60 days age, divided into 3 groups. Group 1 (n=5) animals 80 g Kaopek®, Ibasa, Brazil, administered orally (BM), dissolved in 160 ml water every 24 h; 2 (n=4) received IM sulfadiazine trimethoprim (Ibatrim®,...

10.11606/issn.1678-4456.bjvras.2021.174336 article EN cc-by-nc Brazilian Journal of Veterinary Research and Animal Science 2021-04-24

Traditionally the Serra Gaúcha region, in state of Rio Grande do Sul, is known as a barn productor excellent quality wines. The aromatic complexity wine general, and white particular, what essential to satisfy an increasingly demanding consumer. Among most used techniques achieve this purpose addition yeasts different genres, thus providing range characteristics that are accentuated it. In sense, objective work was evaluate use strains wines Riesling Italic variety, made from grapes grown...

10.1051/bioconf/20191202014 article EN cc-by BIO Web of Conferences 2019-01-01

Os taninos são compostos fenólicos presentes em plantas, classificados quanto à estrutura química hidrolisáveis e condensados. condensados adicionados dieta de ruminantes devido a sua capacidade formar complexos com proteínas tornando-as não degradáveis no ambiente ruminal. Dessa forma, aumenta o aporte proteico intestino delgado onde ocorrerá maior absorção na porção cranial do órgão, duodeno. A vantagem desse mecanismo é aumentar aproveitamento da proteína pelos animais que influenciará...

10.25110/arqvet.v23i1cont.2020.8040 article PT cc-by Arquivos de Ciências Veterinárias e Zoologia da UNIPAR 2020-10-15

This study examines rumen-fluid parameters and the biochemical profile of feedlot sheep supplemented with a commercial product composed yeast culture enzymatically hydrolyzed during an abrupt change diet. Eight at 30 months age, average weight 40.2 ± 3.4 kg, were housed in individual stalls where they received same diet twice daily, which was formulated according to National Research Council [NRC] (2007). The animals divided into two groups, namely, Saccharomyces cerevisiae (SG, n = 4)...

10.5433/1679-0359.2020v41n6supl2p3311 article EN publisher-specific-oa Semina Ciências Agrárias 2020-11-06
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