Amauri Alcindo Alfieri

Research Field

Feedlot

Bovine Respiratory Disease

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Citations (4)

Electrophoretic RNA genomic profiles of Brazilian Picobirnavirus (PBV) strains and molecular characterization of a PBV isolated from diarrheic calf

Virus Research (2015)

Elisabete Takiuchi Rubia Macedo Andressa Fernanda Kunz Jéssica Cristhine Gallego Janaína Lustosa de Mello

Strain (injury)

10.1016/j.virusres.2015.09.022

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Citations (15)

Senecavirus A: An Emerging Vesicular Infection in Brazilian Pig Herds

Transboundary and Emerging Diseases (2015)

Raquel Arruda Leme Everson Zotti Brígida Kussumoto de Alcântara Marcos Vinícius Silva Oliveira Larissa Alves De Freitas

Vesicular diseases are clinically and economically important infections that affect farm animals. North American studies have suggested that Senecavirus A infection might be associated with a vesicular disease in pigs known as porcine idiopathic vesicular disease (PIVD). In the beginning of 2015, outbreaks of porcine vesicular disease have occurred in six Brazilian states from three geographical regions. Official diagnostic tests were performed with negative results for classical vesicular diseases of compulsory reporting. This study investigated Senecavirus A infection in PIVD outbreaks in which other aetiological agents were ruled out. A primer set was designed to amplify a 542-bp product size of VP3/VP1 region of Senecavirus A genome in RT-PCR assay. Primer specificity was analysed in silico and in porcine biological specimens. For this, clinical specimens were collected from eight pig herds affected with PIVD, including vesicular fluid (n = 4) and swabs (n = 7) and scrapings of ruptured vesicles and ulcerative lesions (n = 5) from weaned and adult pigs. Clinically healthy animals (n = 52) of PIVD-affected and non-affected pig herds also were evaluated for Senecavirus A infection. The 16 samples from PIVD-affected animals were positive for Senecavirus A in the RT-PCR assay, while none of the clinically healthy pigs were detected with the virus. Sequencing analysis revealed high nucleotide (87.6–98.5%) and amino acid (95–99.4%) similarities to SVV-01 prototype and other Senecavirus A strains from North American pigs. Primer set presented herein was suitable for molecular characterization of Senecavirus A. The results suggest that Senecavirus A was the aetiological agent of the vesicular disease outbreaks in the evaluated pig herds. This is the first study to report the Senecavirus A infection in clinically affected pigs outside of North America. Senecavirus A was considered a novel emerging pathogen associated with an important vesicular disease in Brazil.

Primer (cosmetics)

10.1111/tbed.12430

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Citations (170)

Interactions of indole acetic acid with EGF and FSH in the culture of ovine preantral follicles

Theriogenology (2005)

Evelyn Rabelo Andrade Marcelo Marcondes Seneda Amauri Alcindo Alfieri J OLIVEIRA Ana Paula Frederico Rodrigues Loureiro Bracarense

Ovarian Cortex

10.1016/j.theriogenology.2005.03.001

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Citations (50)

Effect of indole acetic acid on the in vitro activation and survival of bovine (Bos indicus) preantral follicles.

Animal Reproduction (2010)

Wanessa Blaschi Evelyn Rabelo Andrade José Elías García Laurival A. Vilas-Bôas Fabiana Moreira

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Transplacental Infections Associated with Macavirus in Aborted Bovine Fetuses

Microorganisms (2024)

Flávia Helena Pereira Silva Juliana Torres Tomazi Fritzen Julia Raisa Ximenes Figueiredo Rafaela Maria Boson Jurkevicz Ana Flávia Ferrreira Domingues

The

Transplacental

Aborted Fetus

10.3390/microorganisms12081608

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Citations (1)

Rotavirose suina: topicos sobre a etiologia, infeccao e controle

Semina (1999)

Amauri Alcindo Alfieri Alice Fernandes Alfieri Edsel Alves Beuttemmüller

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Citations (3)

Het hete Ponsen van de Pers van de Macht van de Verkoop Onstabiele voor het Blad van het Metaal in China

Brazilian Journal of Medical and Biological Research (1998)

Jose M. Teixeira G.N.N.L. Camara P.F.V. Pimentel M.N.R. Ferreira Milene Silveira Ferreira

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Detection of equine herpesvirus-2 and -5 infection in asymptomatic horses from Brazil

Journal of Equine Veterinary Science (2016)

AM Dall Agnol Edsel Alves Beuttemmüller Daniela T. Pilz Marcos Vinícius Silva Oliveira Selwyn Arlington Headley

Equine herpesvirus 1

10.1016/j.jevs.2016.02.152

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Citations (3)

Folliculogenesis, Fertility and Biotechnology in Dairy Cattle

IntechOpen eBooks (2021)

Marcelo Marcondes Seneda Sofia Botsaris Delchiaro Amanda Fonseca Zangirólamo Amauri Alcindo Alfieri Fábio Morotti

The ovarian follicle population is formed by thousands of follicles, preantral and antral, where oocytes are included. During fetal life, the first follicles produced are preantral, and, as they undergo the development process, they reach the final stage of antral follicles, where a cavity/or antrum is developed. All this growth phase is called folliculogenesis, and this chapter will abord the most important aspects of this process. Moreover, not all follicles reach the preovulatory phase and can be fertilized, so we will discuss how reproductive biotechniques can positively influence the fertility of bovine females. We will also discuss the possibility of antral follicle count to influence reproductive performance and the correlation to biotechniques. Finally, we present alternatives on how to improve fertility and productive efficiency in dairy herds.

Antral follicle

10.5772/intechopen.101243

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Amauri Alcindo Alfieri

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