Search

Made available in DSpace on 2021-06-25T12:33:38Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-10-01. Added 1 bitstream(s) on 2021-07-15T14:36:31Z : No. of bitstreams: 1 S0006-87052020000400623.pdf: 197868 bytes, checksum: 5c72253dabd8ac9ce3daf0820f203157 (MD5) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Oxisols are important soils that have been converted from native vegetation to croplands, and can affect soil biological properties such as microbial biomass and enzyme activity. Thus, the aim of this study was to evaluate the changes on soil microbial biomass and enzyme activity when native vegetation (NV) was converted to cropland (CL), such as maize or sugarcane in six oxisols from Sao Paulo state, Brazil. Soil microbial biomass C (MBC) and N (MBN), and the activity of arylsulphatase, dehydrogenase and fluorescein diacetate hydrolysis (FDA) were assessed in samples collected at 0-0.20 m. In general, MBC was higher under NV than CL (about + 40%), while MBN and FDA did not show a consistent pattern between NV and CL. All soils showed higher values of arylsulfatase (increased from 101 to 717%) and dehydrogenase (increased 15 to 220%) under NV than CL. In conclusion, soil microbial biomass C is usually higher under native vegetation than cropland. Arylsulphatase and dehydrogenase were the attributes that presented better differentiation between native and cropped soils. Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Tecnol, Jaboticabal, SP, Brazil Univ Brasil, Programa Posgrad Prod Anim, Descalvado, SP, Brazil Univ Fed Piaui, Ctr Ciencias Agr, Dept Engn Agr & Solos, Teresina, PI, Brazil Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Ciencias Exatas, Jaboticabal, SP, Brazil Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Tecnol, Jaboticabal, SP, Brazil Univ Estadual Paulista, Fac Ciencias Agr & Vet, Dept Ciencias Exatas, Jaboticabal, SP, Brazil

Made available in DSpace on 2021-06-25T15:07:09Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01. Added 1 bitstream(s) on 2021-07-15T15:06:29Z : No. of bitstreams: 1 S0102-86502021000400204.pdf: 2022697 bytes, checksum: 46b5efc0eb2de60a7b74b81cd435bb2e (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Purpose: The aim of this work was to analyze the effect of fibrin biopolymer sealant (FS) associated or not to aquatic exercise (AE) on the calcaneal tendon repair. Methods: Forty-four female Wistar rats were randomly divided into four experimental groups: Lesion control (L), Lesion and FS (LS), Lesion and AE (LE) and Lesion and FS associated to AE (LSE). The edema volume (EV), collagen ratio, and histopathological analysis were evaluated after 7, 14, and 21 days of partial tendon transection. Results: The EV was statistically reduced for all treatment groups after 7 and 21 days when compared to L group. The LS and LSE had the highest EV reduction after 21 days of treatment. The FS group didn't induce tissue necrosis or infections on the histopathological analysis. It was observed tenocytes proliferation, granulation tissue and collagen formation in the tendon partial transection area in the FS group. The LSE demonstrated higher amount of granulation tissue and increased the collagen deposition at the injury site. Conclusions: Our data suggests that the therapeutic potential of the association of heterologous fibrin biopolymer sealant with aquatic exercise program should be further explored as it may stimulate the regeneration phase and optimize calcaneal tendon recovery. Univ Brasil, Sci & Technol Inst, Sao Paulo, SP, Brazil Univ Estadual Piaui, Ctr Res Biotechnol & Biodivers, Teresina, PI, Brazil Univ Estadual Paulista, Ctr Study Venoms & Venomous Anim, Botucatu, SP, Brazil Univ Estadual Paulista, Botucatu Med Sch, Botucatu, SP, Brazil Univ Estadual Paulista, Ctr Study Venoms & Venomous Anim, Botucatu, SP, Brazil Univ Estadual Paulista, Botucatu Med Sch, Botucatu, SP, Brazil FAPESP: 2017/21851-0 CNPq: 303224/20185

Made available in DSpace on 2021-06-25T11:55:11Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-03-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) National Council for Scientific and Technological Development Electrospun ultrathin fibrous scaffold filed with synthetic nanohydroxyapatite (nHAp) and graphene nanoribbons (GNR) has bioactive and osteoconductive properties and is a plausible strategy to improve bone regeneration. Poly(butylene-adipate-co-terephthalate) (PBAT) has been studied as fibrous scaffolds due to its low crystallinity, faster biodegradability, and good mechanical properties; however, its potential for in vivo applications remains underexplored. We proposed the application of electrospun PBAT with high contents of incorporated nHAp and nHAp/GNR nanoparticles as bone grafts. Ultrathin PBAT, PBAT/nHAp, and PBAT/nHAp/GNR fibers were produced using an electrospinning apparatus. The produced fibers were characterized morphologically and structurally using scanning electron (SEM) and high-resolution transmission electron (TEM) microscopies, respectively. Mechanical properties were analyzed using a texturometer. All scaffolds were implanted into critical tibia defects in rats and analyzed after two weeks using radiography, microcomputed tomography, histological, histomorphometric, and biomechanical analyses. The results showed through SEM and high-resolution TEM characterized the average diameters of the fibers (ranged from 0.208 mu m +/- 0.035 to 0.388 mu m +/- 0.087) and nHAp (crystallite around 0.28, 0.34, and 0.69 nm) and nHAp/GNR (200-300 nm) nanoparticles distribution into PBAT matrices. Ultrathin fibers were obtained, and the incorporated nHAp and nHAp/GNR nanoparticles were well distributed into PBAT matrices. The addition of nHAp and nHAp/GNR nanoparticles improved the elastic modulus of the ultrathin fibers compared to neat PBAT. High loads of nHAp/GNR (PBATnH5G group) improved the in vivo lamellar bone formation promoting greater radiographic density, trabecular number and stiffness in the defect area 2 weeks after implantation than control and PBAT groups. Sao Paulo State Univ, Inst Sci & Technol, Dept Biosci & Oral Diag, BR-12450000 Sao Paulo, Brazil Air Force Acad, Brazilian Air Force, BR-13630000 Pirassununga, Brazil UFPI Fed Univ Piaui, LIMAV Interdisciplinary Lab Adv Mat, BR-64049550 Teresina, Brazil Univ Brasil, Inst Cient & Tecnol, BR-12450000 Sao Paulo, Brazil Univ Fed Piaui, Dept Phys, BR-64049550 Teresina, Brazil Sao Paulo State Univ, Inst Sci & Technol, Dept Biosci & Oral Diag, BR-12450000 Sao Paulo, Brazil FAPESP: 2016/04618-7 National Council for Scientific and Technological Development: 310883/2020-2 National Council for Scientific and Technological Development: 404683/2018-AOL National Council for Scientific and Technological Development: 311531/2020-2

Made available in DSpace on 2021-06-25T15:07:00Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01. Added 1 bitstream(s) on 2021-07-15T15:06:29Z : No. of bitstreams: 1 S0102-86502021000400203.pdf: 1760982 bytes, checksum: f4f9698f1822c9363aa46c930d354ba9 (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Purpose: To use a 3D printed poly (L-lactide) acid (PLLA) and hydroxyapatite (HA) composite as a bone substitute for reconstruction of a critical bone defect in the radius of rabbits. Methods: A 1.5 cm ostectomy was performed in the radial diaphysis of 60 New Zealand white rabbits. The rabbits were divided into three groups according to surgical treatment of the bone defect (group I - control, group II - bone graft, group III - 3D PLLA). Each group was divided into four subgroups with different radiographic and histopathologic evaluation times (T1 - 15 days, T2 - 30 days, T3 - 60 days, T4 - 90 days). Results: The implant group had greater clinically lameness (p = 0.02), edema (p = 0.007), pain (p = 0.04) and more complications at the surgical site (p = 0.03). Histologically, this group showed greater congestion (p = 0.04), hemorrhage (p = 0.04) and inflammation. Osteogenesis was microscopically similar between days (p = 0.54) and treatments (p = 0.17), even though radiographically, more effective bone healing occurred in the graft group (II), with more callus and bone bridge formation. Conclusions: The customization of a 3D PLLA/HA scaffold was successful. However, in animals receiving the polymer-ceramic composite less bone callus and bone bridge was formed compared to the graft group. Univ Estadual Paulista, Fac Agr & Vet Sci, Dept Clin & Vet Surg, Jaboticabal, SP, Brazil Ctr Univ Maringa, Dept Vet Anat, Maringa, Parana, Brazil Univ Estadual Paulista, Fac Agr & Vet Sci, Grad Program Vet Surg, Jaboticabal, SP, Brazil Univ Brasil, Dept Clin & Vet Surg, Descalvado, SP, Brazil Ctr Univ Maringa, Dept Vet Surg, Maringa, Parana, Brazil Ctr Univ Maringa, Maringa, Parana, Brazil Univ Estadual Paulista, Fac Agr & Vet Sci, Dept Vet Clin Sci, Botucatu, SP, Brazil Univ Fed Vales Jequitinhonha & Mucuri, Inst Sci, Dept Vet Clin Sci, Unai, MG, Brazil Univ Estadual Paulista Julio de Mesquita Filho UN, Fac Agr & Vet Sci, Dept Clin & Vet Surg, Jaboticabal, SP, Brazil Univ Estadual Paulista, Fac Agr & Vet Sci, Dept Clin & Vet Surg, Jaboticabal, SP, Brazil Univ Estadual Paulista, Fac Agr & Vet Sci, Grad Program Vet Surg, Jaboticabal, SP, Brazil Univ Estadual Paulista, Fac Agr & Vet Sci, Dept Vet Clin Sci, Botucatu, SP, Brazil Univ Estadual Paulista Julio de Mesquita Filho UN, Fac Agr & Vet Sci, Dept Clin & Vet Surg, Jaboticabal, SP, Brazil FAPESP: 2015/10139-1

Made available in DSpace on 2021-06-25T12:28:45Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-12-14 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) The fibrous scaffolds for bone tissue engineering that mimic the extracellular matrix with bioactive and bactericidal properties could provide adequate conditions for regeneration of damaged bone. Electrospun ultrathin fiber covered with nano-hydroxyapatite is a favorable fibrous scaffold design. We developed a fast and reproducible strategy to produce polyvinylidene fluoride (PVDF)/nano-hydroxyapatite (nHAp) nanofibrous scaffolds with bactericidal and bioactive properties. Fibrous PVDF scaffolds were obtained first by the electrospinning method. Then, their surfaces were modified using oxygen plasma treatment followed by electrodeposition of nHAp. This process formed nanofibrous and superhydrophilic PVDF fibers (133.6 nm, fiber average diameter) covered with homogeneous nHAp (202.6 nm, average particle diameter) crystals. Energy-dispersive X-ray spectrometry demonstrated the presence of calcium phosphate, indicating a Ca/P molar ratio of approximately 1.64. X-ray diffraction, Fourier transform infrared spectroscopy, and Raman spectroscopy spectra identified beta-phase of nHAp. Thermal analysis indicated a slight reduction in stability after nHAp electrodeposition. Bactericidal assays showed that nHAp exhibited 99.8% efficiency against Pseudomonas aeruginosa bacteria. The PVDF/Plasma and PVDF/nHAp groups had the highest cell viability, total protein, and alkaline phosphatase activity by 7 days after exposure of the scaffolds to MG63 cell culture. Therefore, the developed scaffolds are an exciting alternative for application in bone regeneration. UFPI Fed Univ Piaui, Mat Sci & Engn Grad Program, BioMatLab Grp, LIMAV Interdisciplinary Lab Adv Mat, BR-64049550 Teresina, Piaui, Brazil Univ Brasil, Inst Cient & Tecnol, BR-08230030 Sao Paulo, Brazil UFPI Fed Univ Piaui, Dept Phys, 64049550 Teresina, PI, Brazil Univ UniMetrocamp, BR-13035500 Campinas, SP, Brazil Univ Estadual Campinas, Fac Med Sci, BR-13083970 Campinas, SP, Brazil Univ Santo Amaro, BR-04829300 Sao Paulo, Brazil Sao Paulo State Univ, Inst Sci & Technol, Dept Biosci & Oral Diag, BR-12247004 Sao Jose Dos Campos, SP, Brazil Sao Paulo State Univ, Inst Sci & Technol, Dept Biosci & Oral Diag, BR-12247004 Sao Jose Dos Campos, SP, Brazil CNPq: 303752/2017-3 CNPq: 404683/2018-5 CNPq: 304133/2017-5 CNPq: 424163/2016-0

Made available in DSpace on 2020-12-12T02:12:41Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-11-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Due to increasing demand of ingredients of animal origin, studies on the availability of nutrients in ingredients of plant origin are worthy in carnivorous species including bullfrog. This study aimed to determine apparent digestibility coefficients (ADCs) of amino acids (AAs) in three ingredients as plant protein sources (soybean protein concentrate (SPC), corn gluten meal 60 % (CGM), soybean meal (SM)) and two ingredients as plant energy sources (corn grain (CG) and wheat bran (WB)) which commonly use in bullfrog diets. A reference diet and five test diets containing 69.5 % of the reference diet, 30 % of each test ingredient and 0.5 % of chromium (III) oxide as an inert marker were prepared. Among plant protein ingredients, CGM showed better digestibility of essential amino acids (EAAs) (> 80 %) at the three post-metamorphic (initial, growing and finishing) phases of bullfrog development, except tryptophan which presented a low digestibility at growing and finishing phases. Among plant energy ingredients, CG presented better digestibility of AAs at both initial and growing phases than WB which showed better digestibility only at finishing phase. It was observed that methionine and lysine are the most limiting EAAs in tested ingredients, indicating that additional amounts of these AAs should be supplemented when these ingredients are used in bullfrog diets. Brazil University (Univ. Brasil), Campus Fernandópolis - Est. Projetada F-1, Fazenda Santa Rita Aquaculture Center São Paulo State University (UNESP), Via de Acesso Prof. Paulo Donato Castellane Fundação Instituto de Pesca do Estado do Rio de Janeiro Fonseca Ramos Terminal Rodoviário Roberto Silveira Sobreloja São Paulo State University (UNESP) Faculty of Agricultural and Veterinary Sciences, Via de Acesso Prof. Paulo Donato Castellane São Paulo State University (UNESP) Postgraduate Program in Animal Science and Technology Rodovia Comandante João Ribeiro de Barros, Km 651 – Das Antas Aquaculture Center São Paulo State University (UNESP), Via de Acesso Prof. Paulo Donato Castellane São Paulo State University (UNESP) Faculty of Agricultural and Veterinary Sciences, Via de Acesso Prof. Paulo Donato Castellane São Paulo State University (UNESP) Postgraduate Program in Animal Science and Technology Rodovia Comandante João Ribeiro de Barros, Km 651 – Das Antas FAPESP: 2012/03914-0 FAPESP: 2012/13618-0

Made available in DSpace on 2020-12-12T02:09:51Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-09-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) This 45-day work aimed to determine the response of juvenile pacu (Piaractus mesopotamicus) to balanced digestible protein (BDP) and to use these responses to determine whether the optimum economic levels of BDP would differ depending on the form in which the fish is sold. Six isoenergetic diets containing 163, 201, 238, 272, 315 and 348 g/kg BDP (dry-matter basis) were prepared through the serial dilutions of a high-protein diet with the low-protein diet. Fish (initial average body weight, 10.82 ± 0.14 g) were fed with respective experimental diets three times a day until apparent satiation. The optimum biological level of BDP was calculated as 326 g/kg (dry-matter basis) by the quadratic regression model for maximum body weight gain of juvenile pacu. To maximize economic returns (US$/kg) for different end products, the optimum economic levels of BDP were calculated as 311, 317 and 319 g/kg (dry-matter basis) by an economic model for whole-body, eviscerated and sliced juvenile pacu respectively. This finding revealed that obtaining maximum biological performance of fish in the case of high feed costs or low prices of the end product in consumer market would substantially reduce the economic returns. Aquaculture Center São Paulo State University – UNESP School of Agricultural Engineering and Environmental Sciences University of KwaZulu–Natal Department of Veterinary Medicine Brazil University – Univ. Brasil Department of Animal Science Faculty of Agricultural and Veterinary Sciences São Paulo State University – UNESP Aquaculture Center São Paulo State University – UNESP Department of Animal Science Faculty of Agricultural and Veterinary Sciences São Paulo State University – UNESP FAPESP: 2013/25761–4

Made available in DSpace on 2019-10-03T18:20:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2018-01-01. Added 1 bitstream(s) on 2019-10-09T18:33:23Z : No. of bitstreams: 1 S1516-35982018000100538.pdf: 436824 bytes, checksum: ae566449998790a4b54471b63b1e3ad7 (MD5) Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Different levels of glycosaminoglycans (chondroitin sulfate and glucosamine sulfate) and vitamin C were injected in ovo to determine whether additive use influences the incubation parameters and bone characteristics of posthatch chicks. Hatchability was not affected by addition of glycosaminoglycans and vitamin C in ovo. However, chicks that received 4 ug additive showed 2.86% reduction in total mortality when compared with chicks from non-injected eggs. Moreover, tibia area and femur bone mineral density increased in chicks from eggs injected with 2.16 and 6.00 mu g of additive, respectively. In ovo feeding with glycosaminoglycans and vitamin C can benefit bone development in embryos and reduce total mortality during the incubation period. Univ Estadual Paulista, Fac Ciencias Agr & Vet, Jaboticabal, SP, Brazil Univ Brasil, Programa Mestrado Prod Anim, Descalvado, SP, Brazil Fundacao Univ Fed Grande Dourados, Programa Posgrad Agronegocios, Dourados, MS, Brazil Univ Oeste Santa Catarina, Xanxere, SC, Brazil Univ Estadual Paulista, Fac Ciencias Agr & Vet, Jaboticabal, SP, Brazil FAPESP: 2013/04158

Made available in DSpace on 2018-11-26T17:42:12Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-09-01. Added 1 bitstream(s) on 2021-07-15T15:01:46Z : No. of bitstreams: 1 S1516-35982017000900760.pdf: 294943 bytes, checksum: 2c0496ae62d0c7da661d4abe8f2eb94d (MD5) The objective of this study was to evaluate the effect of chamomile extract on Japanese quail on their performance, animal behavior, tonic immobility, body injuries, and surface temperature. The trial was conducted using 108 quail distributed in a completely randomized experimental design, with three treatments (0, 2.5, and 5.0 g chamomile/kg of feed), six replicates, and six birds per treatment, evaluated in six measures repeated in time (14, 28, 42, 56, 70, and 84 days of trial). The inclusion of chamomile presented a quadratic effect on sitting behavior, estimating the inclusion of 1.8 g chamomile/kg to maximize this behavior. There was a decreasing linear effect for aggressive pecking, that is, the higher the inclusion of chamomile in the diet, the lower the expression of this behavior. The inclusion of 1.8-5.0 g chamomile/kg in a Japanese quail diet reduces the behavior of aggressive pecking, in addition to keeping the birds seated longer. These results are innovative because they show in the literature for the first time that chamomile supplemented in Japanese quail diets has the capacity to modulate the behavior of the quail, leading to an improvement in the welfare of quail raised in cages. Fundacao Univ Fed Grande Dourados, Fac Ciencias Agr, Dourados, MS, Brazil Univ Brasil, Descalvado, SP, Brazil Univ Sao Paulo, Fac Med Vet & Zootecn, Dept Nutr & Prod Anim, Pirassununga, SP, Brazil Univ Estadual Paulista, Programa Posgrad Zootecn, Jaboticabal, SP, Brazil Univ Estadual Paulista, Programa Posgrad Zootecn, Jaboticabal, SP, Brazil

Made available in DSpace on 2018-11-26T15:44:21Z (GMT). No. of bitstreams: 0 Previous issue date: 2017-05-01. Added 1 bitstream(s) on 2019-10-09T18:25:14Z : No. of bitstreams: 1 S0100-69162017000300453.pdf: 508998 bytes, checksum: b541e4e228b73695652a4e698b4ed181 (MD5) Without effective actions to improve environmental management, water resources tend to become scarce. Thus, this study aimed to understand the processes influencing the physical, chemical, and biological properties of the water due to land uses and occupation in the Ipe stream basin, in Ilha Solteira - SP (Brazil), regarding the dependence of the analyzed variables. Monitoring of chemical, physical, and biological water quality was performed from 2006 to 2011, and the records of land use and occupation in 2011. A factorial multivariate analysis allowed us to understand that the processes in densely populated areas increased degradation of water by the input of organic loads, yet those of farming areas enhanced the degradation of the chemical and physical quality of spring waters. Therefore, installing irrigation systems near populated areas, for crops consumed in natura, may compromise this agricultural activity, as well as the absence of water filtration systems downstream agricultural areas. Furthermore, we concluded that multivariate statistics is a powerful tool to detect these influencing processes in water quality. In this study, this type of analysis played an important role isolating the processes acting on water quality. Univ Rio Verde, Rio Verde, GO, Brazil Univ Estadual Paulista, Ilha Solteira, SP, Brazil Univ Estadual Paulista, Jaboticabal, SP, Brazil Univ Brasil, Fernandopolis, SP, Brazil Univ Ribeirao Preto, Ribeirao Preto, SP, Brazil Univ Estadual Paulista, Ilha Solteira, SP, Brazil Univ Estadual Paulista, Jaboticabal, SP, Brazil