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Ricardo José Garcia Pereira
University of São Paulo
23Publications
6H-index
122Citations
Publications 25
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#1Lúcio Francelino Araújo (USP: University of São Paulo)H-Index: 11
#2Cristiane Soares da Silva Araújo (USP: University of São Paulo)H-Index: 6
Last.M T Dias (USP: University of São Paulo)
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#1Paloma Rocha Arakaki (USP: University of São Paulo)H-Index: 3
#2Paula Andrea Borges Salgado (Park Foundation)
Last.Ricardo José Garcia Pereira (USP: University of São Paulo)H-Index: 6
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#1Mayra Hespanhol Frediani (USP: University of São Paulo)
#2Cristiane Schilbach Pizzutto (USP: University of São Paulo)H-Index: 4
Last.Ricardo José Garcia Pereira (USP: University of São Paulo)H-Index: 6
view all 4 authors...
ABSTRACTHousing layers in battery cages is a practice still used by many countries but it has been criticized because of its influence on behavioral repertoire of birds. We investigated whether simple and affordable enrichment devices alone impact behavior, foot condition and performance of laying hens housed in conventional cages. Hens were divided into plain cages (CON), cages with perches (PER), and cages with tassels and scratch-pads (ENR), and parameters were evaluated before and after enri...
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#1Mayra Hespanhol Frediani (USP: University of São Paulo)
Last.Ricardo José Garcia Pereira (USP: University of São Paulo)H-Index: 6
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Abstract It is unquestinable that artificial insemination (AI) offers many benefits to avian conservation programs, but a serious impediment towards implementing AI for wild species is the development of effective techniques to consistently collect good quality ejaculates. Thus, we aimed to examine the success rate of electro-stimulation (ES) in collecting semen from 49 unconditioned males from orders Piciformes, Strigiformes, Accipitriformes, Cathartiformes, Galiformes, Anseriformes and Psittac...
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#1Andressa Dalmazzo (USP: University of São Paulo)H-Index: 4
#2João Diego de Agostini Losano (USP: University of São Paulo)H-Index: 8
Last.Marcilio Nichi (USP: University of São Paulo)H-Index: 18
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The aim of this study was to confirm gene and protein expression of oxytocin receptor (OTR) and sex hormone-binding globulin (SHBG) in the testis and epididymis of dogs, correlating these data with sperm quality and production and testosterone concentrations. Positive correlations were found between OTR and SHBG expression in both the testis and epididymis. Testicular OTR expression was positively associated with plasma membrane and acrosome integrity in canine spermatozoa, whereas SHBG expressi...
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#1Nicole Assis Pereira (USP: University of São Paulo)
#2Antonio Carlos Alessi (UNESP: Sao Paulo State University)H-Index: 17
Last.Leonardo José Richtzenhain (USP: University of São Paulo)H-Index: 28
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An outbreak of infectious bronchitis caused by the IBVPR03 strain of the Massachusetts genotype affected H-120 vaccinated laying hens in South Brazil. We investigated the cross protection of the vaccine by assessing the traqueal ciliostasis, virus recovery, and histopathological changes typically observed in the respiratory tract. Although the IBVPR03 strain is S1-genotyped as Massachusetts with a high genomic similarity to the H-120 vaccine strains, surprisingly, we found no tropism or pathogen...
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#1C. C. Rocha (USP: University of São Paulo)H-Index: 2
#2Giulia Kiyomi Vechiato Kawai (USP: University of São Paulo)H-Index: 3
Last.Marcilio Nichi (USP: University of São Paulo)H-Index: 18
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Abstract Semen biotechniques may impair sperm quality due to excessive production of reactive oxygen species (ROS). Additionally, products of the oxidative reaction, especially involving lipids (e.g., malondialdehyde – MDA), may be even more harmful to sperm. Carnosine, previously reported to be present in seminal plasma of several species, may be a key factor on sperm tolerance to biotechniques by counterattacking the deleterious influence of MDA. Therefore, the aim of this study was to measure...
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#1Ricardo José Garcia Pereira (USP: University of São Paulo)H-Index: 6
#2Maurício Durante Christofoletti (UNESP: Sao Paulo State University)H-Index: 1
Last.José Maurício Barbanti Duarte (UNESP: Sao Paulo State University)H-Index: 19
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Abstract Despite Psitaciformes (parrots) being the third largest nonpasserine order (398 species), it currently ranks second in number of threatened species (28%) according to the Internatinal Union for Conservation of Nature (IUCN) criteria. Since most of the literature concerning reproductive endocrinology in avian species derives from domestic and song birds, it is puzzling that advances in reproductive science for the Psitaciformes order lags far behind, in spite of the growing threats again...
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#1Lúcio Francelino Araújo (USP: University of São Paulo)H-Index: 11
#2M. A. BonatoH-Index: 1
Last.Allison Jun Taguchi Kawaoku (USP: University of São Paulo)H-Index: 1
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