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220 results on '"Oliveira, H. N."'

2. Evaluation of the Effect of Ethyl Alcohol Content In A Ternary Ethanol/Biodiesel/Diesel System.

Author

Bezerra, J. K. A., da Silva, R. R., de Barros Neto, E. L., de Medeiros, G. G., Duarte, L. J. N., and de Oliveira, H. N. M.

Subjects
ETHANOL, DIESEL fuels, CLEAN energy, TERNARY phase diagrams, ALCOHOL as fuel, LIQUID-liquid equilibrium, ALTERNATIVE fuels
Abstract

Increasing concern about climate change and the need to reduce dependence on fossil fuels have driven the search for more sustainable energy alternatives. One way to reduce emissions is by adding oxygenated compounds such as biodiesel and alcohols to diesel fuel. However, this can lead to phase separation between the fuels and have serious consequences for engine performance. In this context, the present study aimed to evaluate the effect of ethanol content on the miscibility of components in mixtures containing ethanol + biodiesel + diesel through the study of liquid-liquid equilibrium. The results from ternary phase diagrams revealed that the amount of water present in ethanol has a significant effect on the miscibility of the mixture components, with larger biphasic regions observed in systems with lower ethanol content. For the 95% ethanol diagram, the reliability of experimental data on equilibrium lines was assessed through the Othmer-Tobias and Hand correlations, which showed correlation coefficients (R²) of 0.996 and 0.995, respectively. The results obtained from the NRTL and UNIQUAC thermodynamic models demonstrated excellent agreement with the experimental data, with a deviation of only 1.78 and 0.78% for the NRTL and UNIQUAC models. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Cotesia no controle da Broca-da-cana

Author

OLIVEIRA, H. N. de and HARLEY NONATO DE OLIVEIRA, CPAO.

Subjects
Praga de Planta, Cana de Açúcar, Diatraea Saccharalis, Controle Biológico
Abstract

Abroca-da-cana, Diatraea saccharalis, é considerada a principal praga da cana-de-açúcar, causando prejuízos de maneira direta e indireta. Entre os danos diretos, devido à abertura de galerias no interior do colmo da planta pela lagarta, podemos citar a redução da translocação de seiva e a quebra e perda de peso de colmos.

Published
2022

6. Anticontaminantes alternativos como substitutos ao formaldeído na dieta artificial para criação de Helicoverpa armigera (Hübner, 1805) (Lepidoptera: Noctuidae)

Author

MOREIRA, S. C. S., SILVA, I. F., AVILA, C. J., OLIVEIRA, H. N. de, SUELEN C. S. MOREIRA, PÓS-GRADUAÇÃO EM ENTOMOLOGIA E CONSERVAÇÃO DA BIODIVERSIDADE - UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, MS, IVANA FERNANDES SILVA, PÓS DOUTORANDA - UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, MS, CREBIO JOSE AVILA, CPAO, and HARLEY NONATO DE OLIVEIRA, CPAO.

Subjects
Inseto, Entomologia, Entomology
Abstract

Made available in DSpace on 2020-08-13T11:13:56Z (GMT). No. of bitstreams: 1 37040.pdf: 543311 bytes, checksum: 10b761daa814199b5cb0122dbb222cbe (MD5) Previous issue date: 2020

Published
2020

12. Liberação do parasitoide Cotesia flavipes (Hymenoptera: Braconidae) em Diatraea saccharalis (Lepidoptera: Crambidae) na cana-de-açúcar

Author

RÔDAS, P. L., OLIVEIRA, H. N. de, GLAESER, D. F., PRISCILA LARANJEIRA RÔDAS, BIÓLOGA, HARLEY NONATO DE OLIVEIRA, CPAO, and DANIELE FABIANA GLAESER, BOLSISTA PÓS-DOUTORANDA FUNDECT/CAPES.

Subjects
Broca, Emergência, Pests, Biological control, Natural enemies, Inimigo Natural, Controle Biológico, Drills, Praga, Sugarcane
Abstract

Made available in DSpace on 2019-11-20T00:43:18Z (GMT). No. of bitstreams: 1 36923.pdf: 340862 bytes, checksum: d6899b07800ae1ba982c852474293a4b (MD5) Previous issue date: 2019

Published
2019

15. Controle biológico: o próximo pulo do gato

Author

LANDERS, J. N., OLIVEIRA, H. N. de, JOHN N. LANDERS, FEDERAÇÃO BRASILEIRA DE PLANTIO DIRETO NA PALHA E IRRIGAÇÃO, and HARLEY NONATO DE OLIVEIRA, CPAO.

Subjects
Cana de Açúcar, Parasitóide, Agricultura conservacionista, Biological control, No-tillage, Controle Biológico, Cane sugar, Plantio Direto
Abstract

Made available in DSpace on 2018-07-08T00:39:20Z (GMT). No. of bitstreams: 1 RevistaPlantiodireto1.pdf: 2211360 bytes, checksum: 9ec553e801551e38846c9e2164b9e0eb (MD5) Previous issue date: 2018-06-22

Published
2018

17. Prediction of meat quality traits in Nelore cattle by near-infrared reflectance spectroscopy

Author

Magalhães, A F B, Teixeira, G H de A, Ríos, A C H, Silva, D B dos S, Mota, L F M, Muniz, M M M, Medeiros-De-morais, Camilo De lelis, de Lima, K M G, Cunha Júnior, L C, Baldi, F, Carvalheiro, R, Oliveira, H N de, Chardulo, L A L, Albuquerque, L G de, Magalhães, A F B, Teixeira, G H de A, Ríos, A C H, Silva, D B dos S, Mota, L F M, Muniz, M M M, Medeiros-De-morais, Camilo De lelis, de Lima, K M G, Cunha Júnior, L C, Baldi, F, Carvalheiro, R, Oliveira, H N de, Chardulo, L A L, and Albuquerque, L G de

Abstract

The main definition for meat quality should include factors that affect consumer appreciation of the product. Physical laboratory analyses are necessary to identify factors that affect meat quality and specific equipment is used for this purpose, which is expensive and destructive, and the analyses are usually time consuming. An alternative method to performing several beef analyses is near-infrared reflectance spectroscopy (NIRS), which permits to reduce costs and to obtain faster, simpler, and non-destructive measurements. The objective of this study was to evaluate the feasibility of NIRS to predict shear force (WBSF), marbling, and color (*a=redness; b*=yellowness and L*=lightness) in meat samples of uncastrated male Nelore cattle, that were approximately 2-year-old. Samples of longissimus thoracis (n=644) were collected and spectra were obtained prior to meat quality analysis. Multivariate calibration was performed by partial least squares regression. Several preprocessing techniques were evaluated alone and in combination: raw data, reduction of spectral range, multiplicative scatter correction, and 1st derivative. Accuracies of the calibration models were evaluated using the root mean square error of calibration (RMSEC), root mean square error of prediction (RMSEP), coefficient of determination in the calibration (R²C) and prediction (R²P) groups. Among the different preprocessing techniques, the reduction of spectral range provided the best prediction accuracy for all traits. The NIRS showed a better performance to predict WBSF (RMSEP = 1.42kg, R²P = 0.40) and b* color (RMSEP = 1.21, R²P = 0.44), while its ability to accurately predict L* (RMSEP = 1.98, R²P = 0.16) and a* (RMSEP = 1.42, R²P = 0.17) was limited. NIRS was unsuitable to predict subjective meat quality traits such as marbling in Nelore cattle.

Published
2018

18. Efeito direto e indireto do milho bt sobre o predador Podisus nigrispinus

Author

SANTANA, A. G., AVILA, C. J., OLIVEIRA, H. N. de, SCHLICK-SOUZA, E. C., ALEXA GABRIELA SANTANA, BOLSISTA DCR - EMBRAPA AGROPECUÁRIA OESTE, CREBIO JOSE AVILA, CPAO, HARLEY NONATO DE OLIVEIRA, CPAO, and EUNICE CLÁUDIA SCHLICK-SOUZA, BOLSISTA DCR - EMBRAPA AGROPECUÁRIA OESTE.

Subjects
Spodoptera Frugiperda, Plantas Bt, Bt Plants, reproduction, Inimigo Natural, Survival, Natural enemy, Reprodução, Sobrevivência
Abstract

Made available in DSpace on 2017-12-01T23:22:11Z (GMT). No. of bitstreams: 1 ArtigoRBMS1.pdf: 584959 bytes, checksum: 79a13bb2b58db482a162eaa6946135a0 (MD5) Previous issue date: 2017-12-01

Published
2017

22. Genome scan for postmortem carcass traits in Nellore cattle

Author

Júnior, G. A. Fernandes [UNESP], Costa, R. B. [UNESP], De Camargo, G. M.F. [UNESP], Carvalheiro, R. [UNESP], Rosa, G. J.M., Baldi, F. [UNESP], Garcia, D. A. [UNESP], Gordo, D. G.M. [UNESP], Espigolan, R. [UNESP], Takada, L. [UNESP], Magalhães, A. F.B. [UNESP], Bresolin, T. [UNESP], Feitosa, F. L.B. [UNESP], Chardulo, L. A.L. [UNESP], De Oliveira, H. N. [UNESP], De Albuquerque, L. G. [UNESP], Universidade Estadual Paulista (Unesp), CNPq, Univ Wisconsin, Dept Zootecnia, and University of Wisconsin–Madison

Subjects
beef cattle, genome-wide association study, backfat thickness, carcass weight, single-step genomic BLUP approach, ribeye area
Abstract

Made available in DSpace on 2018-11-26T17:55:57Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-10-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) Carcass traits measured after slaughter are economically relevant traits in beef cattle. In general, the slaughter house payment system is based on HCW. Ribeye area (REA) is associated with the amount of the meat in the carcass, and a minimum of backfat thickness (BFT) is necessary to protect the carcass during cooling. The aim of this study was to identify potential genomic regions harboring candidate genes affecting those traits in Nellore cattle. The data set used in the present study consisted of 1,756 Nellore males with phenotype records. A subset of 1,604 animals had both genotypic and phenotypic information. Genotypes were generated based on a panel with 777,962 SNPs from the Illumina Bovine HD chip. The SNP effects were calculated based on the genomic breeding values obtained by using the single-step GBLUP approach and a genomic matrix re-weighting procedure. The proportion of the variance explained by moving windows of 100 consecutive SNPs was used to assess potential genomic regions harboring genes with major effects on each trait. The top 10 non-overlapping SNP-windows explained 8.72%, 11.38%, and 9.31% of the genetic variance for REA, BFT, and HCW, respectively. These windows are located on chromosomes 5, 7, 8, 10, 12, 20, and 29 for REA; chromosomes 6, 8, 10, 13, 16, 17, 18, and 24 for BFT; and chromosomes 4, 6, 7, 8, 14, 16, 17, and 21 for HCW. For REA, there were identified genes (CDKN2A and CDKN2B) involved in the cell cycle biological process which affects many aspects of animal growth and development. The SLC38A1 and SLC38A2 genes, both from SLC38 AA transporter family, was also associated with REA. The AA transporters are essential for cell growth and proliferation, acting as carriers of tissue nutrient supplies. Various genes identified for BFT (SORCS2, AQP3, AQP7, CDC42BPA, ASIP, and ACSS2) have been associated with lipid metabolism in different mammal species. One of the most promising genes identified for HCW was the PLAG1. There is evidence, in the literature, that this gene is located in putative QTL affecting carcass weight in beef cattle. Our results showed several genomic regions containing plausible candidate genes that may be associated with carcass traits in Nellore cattle. Besides contributing to a better understanding of the genetic control of carcass traits, the identified genes can also be helpful for further functional genomic studies. UNESP, Fac Ciencias Agr & Vet, BR-14884000 Jaboticabal, SP, Brazil CNPq, Brasilia, DF, Brazil Univ Wisconsin, Madison, WI 53706 USA UNESP, Fac Med Vet & Zootecnia, BR-18618970 Botucatu, SP, Brazil Dept Zootecnia, Via Acesso Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, Brazil UNESP, Fac Ciencias Agr & Vet, BR-14884000 Jaboticabal, SP, Brazil UNESP, Fac Med Vet & Zootecnia, BR-18618970 Botucatu, SP, Brazil FAPESP: 2009/16118-5 FAPESP: 2015/06140-4

Published
2016

23. Genetic parameter estimates for carcass traits and visual scores including or not genomic information

Author

Gordo, D. G. M. [UNESP], Espigolan, R. [UNESP], Tonussi, R. L. [UNESP], Junior, G. A. F. [UNESP], Bresolin, T. [UNESP], Braga Magalhaes, A. F. [UNESP], Feitosa, F. L. [UNESP], Baldi, F. [UNESP], Carvalheiro, R. [UNESP], Tonhati, H. [UNESP], Oliveira, H. N. de [UNESP], Chardulo, L. A. L. [UNESP], Albuquerque, L. G. de [UNESP], Universidade Estadual Paulista (Unesp), and Dept Zootecnia

Subjects
beef cattle, single nucleotide polymorphism, fat thickness, longissimus muscle area, heritability, genetic correlation
Abstract

Made available in DSpace on 2018-11-26T17:55:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2016-05-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) The objective of this study was to determine whether visual scores used as selection criteria in Nellore breeding programs are effective indicators of carcass traits measured after slaughter. Additionally, this study evaluated the effect of different structures of the relationship matrix (A and H) on the estimation of genetic parameters and on the prediction accuracy of breeding values. There were 13,524 animals for visual scores of conformation (CS), finishing precocity (FP), and muscling (MS) and 1,753, 1,747, and 1,564 for LM area (LMA), backfat thickness (BF), and HCW, respectively. Of these, 1,566 animals were genotyped using a high-density panel containing 777,962 SNP. Six analyses were performed using multitrait animal models, each including the 3 visual scores and 1 carcass trait. For the visual scores, the model included direct additive genetic and residual random effects and the fixed effects of contemporary group (defined by year of birth, management group at yearling, and farm) and the linear effect of age of animal at yearling. The same model was used for the carcass traits, replacing the effect of age of animal at yearling with the linear effect of age of animal at slaughter. The variance and covariance components were estimated by the REML method in analyses using the numerator relationship matrix (A) or combining the genomic and the numerator relationship matrices (H). The heritability estimates for the visual scores obtained with the 2 methods were similar and of moderate magnitude (0.23-0.34), indicating that these traits should response to direct selection. The heritabilities for LMA, BF, and HCW were 0.13, 0.07, and 0.17, respectively, using matrix A and 0.29, 0.16, and 0.23, respectively, using matrix H. The genetic correlations between the visual scores and carcass traits were positive, and higher correlations were generally obtained when matrix H was used. Considering the difficulties and cost of measuring carcass traits postmortem, visual scores of CS, FP, and MS could be used as selection criteria to improve HCW, BF, and LMA. The use of genomic information permitted the detection of greater additive genetic variability for LMA and BF. For HCW, the high magnitude of the genetic correlations with visual scores was probably sufficient to recover genetic variability. The methods provided similar breeding value accuracies, especially for the visual scores. Univ Estadual Paulista, Fac Ciencias Agr & Vet, BR-14884900 Jaboticabal, SP, Brazil Univ Estadual Paulista, Fac Med Vet & Zootecnia, BR-18618970 Botucatu, SP, Brazil Dept Zootecnia, Via Acesso Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, Brazil Univ Estadual Paulista, Fac Ciencias Agr & Vet, BR-14884900 Jaboticabal, SP, Brazil Univ Estadual Paulista, Fac Med Vet & Zootecnia, BR-18618970 Botucatu, SP, Brazil FAPESP: 2009/16118-5 FAPESP: 2014/11537-8

Published
2016

24. Teste de vôo como critério de avaliação da qualidade de Palmistichus elaeisis Delvare & LaSalle (Hymenoptera: eulophidae)

Author

FELTRIN-CAMPOS, E., RÔDAS, P. L., GLAESER, D. F., PEREIRA, F. F., OLIVEIRA, H. N. de, ELIDIANE FELTRIN-CAMPOS, PÓS GRADUAÇÃO EM ENTOMOLOGIA E CONSERVAÇÃO DA BIODIVERSIDADE - UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, DOURADOS, PRISCILA LARANJEIRA RÔDAS, PÓS GRADUAÇÃO EM ENTOMOLOGIA E CONSERVAÇÃO DA BIODIVERSIDADE, UNIVERSIDADE FEDERAL DA GRANDE DOURADOS, dOURADOS, DANIELE FABIANA GLAESER, BOLSISTA PÓS-DOC PNPD/FUNDECT, FABRÍCIO FAGUNDES PEREIRA, DOCENTE - UNIVERSIDADE FEDERAL DA GRANDE DOURADOS - DOURADOS, and HARLEY NONATO DE OLIVEIRA, CPAO.

Subjects
Praga, Inimigos naturais, Pest, biological control, Controle Biológico, Parasitoide, natural enemies, Laboratório, Laboratory, Parasitoid
Published
2016

25. Detection of Babesia bovis and Babesia bigemina in water buffaloes (Bubalus bubalis) in endemic areas of São Paulo state, Brazil

Author

NEO, T. A., GIGLIOTI, R., OBREGON, D., BILHASSI, T. B., OLIVEIRA, H. N. de, MACHADO, R. Z., ANIBAL, F. de F., BRITO, L. G., MALAGO JUNIOR, W., DONATONI, F. A. B., OLIVEIRA, M. C. de S., Thalita Athiê Néo, UFSCar, Rodrigo Giglioti, UNESP, Agrarian University of Havana, Talita Barban Bilhassi, UNESP, Henrique Nunes de Oliveira, UNESP, Rosângela Zacarias Machado, UNESP, Fernanda de Freitas Anibal, UFSCar, LUCIANA GATTO BRITO, CPAF-Rondonia, WILSON MALAGO JUNIOR, CPPSE, FLAVIA ALINE BRESSANI DONATONI, CPPSE, and MARCIA CRISTINA DE SENA OLIVEIRA, CPPSE.

Subjects
Buffaloes, Diagnosis, babesiosis, Bubalus Bubalis, NPCR, Bufalo, QPCR
Abstract

Made available in DSpace on 2019-04-10T00:39:37Z (GMT). No. of bitstreams: 1 OJVM2016052415273391.pdf: 813165 bytes, checksum: d09c6f5a1b606ff5cd222ce5b73d1519 (MD5) Previous issue date: 2016

Published
2016

26. Distribuição espacial de adultos de Empoasca kraemeri (Hemiptera: Cicadellidae) em pinhão-manso Jatropha curcas L

Author

OLIVEIRA, M. D. G. de, FERNANDES, M. G, MOTA, T. A., OLIVEIRA, H. N. de, MELISSA DONADELLO GAVA DE OLIVEIRA, PÓS-GRADUAÇÃO - UFGD, MARCOS GINO FERNANDES, PÓS-GRADUAÇÃO - UFGD, THIAGO ALEXANDRE MOTA, PÓS-GRADUAÇÃO - UFGD, and HARLEY NONATO DE OLIVEIRA, CPAO.

Subjects
Dispersion index, sticky traps, Negative binomial distribution, Armadilhas adesivas, Índices de dispersão, Distribuição binomial negativa
Published
2016

29. Inimigo natural ataca broca da cana e Helicoverpa armigera

Author

OLIVEIRA, H. N. de, SIMONATO, J., KASSAB, S. O., PEREIRA, F. F., HARLEY NONATO DE OLIVEIRA, CPAO, JULIANA SIMONATO, PÓS-GRADUANDA UFGD, SAMIR OLIVEIRA KASSAB, PÓS-DOUTORANDO UFGD, and FABRICIO FAGUNDES PEREIRA, DOCENTE - UFGD.

Subjects
Praga de Planta
Published
2015

30. Parasitism and emergence of Tetrastichus howardi (Hymenoptera: Eulophidae) on Diatraea saccharalis (Lepidoptera: Crambidae) larvae, pupae and adults

Author

PEREIRA, F. F., KASSAB, S. O., CALADO, V. R. F., VARGAS, E. L., OLIVEIRA, H. N. de, ZANÚNCIO, J. C., FABRICIO FAGUNDES PEREIRA, UFGD, SAMIR OLIVEIRA KASSAB, UFGD, VANESSA RODRIGUES FERREIRA CALADO, UFGD, ELIZANGELA LEITE VARGAS, UFGD, HARLEY NONATO DE OLIVEIRA, CPAO, and JOSÉ COLA ZANÚNCIO, UFV.

Subjects
sugarcane, Pupa, Parasitóide, Larva, Larval and pupal parasitoid, biological control, Controle Biológico, Cana-de-açúcar
Published
2015

32. Influência da idade dos ovos de Diatraea saccharalis (Lepidoptera: crambidae) no parasitismo de Trichogramma galloi (Hymenoptera: trichogrammatidae)

Author

OLIVEIRA, H. N. de, SANTANA, D. R. S., BELLON, P. P., OLIVEIRA, F. C. de, HARLEY NONATO DE OLIVEIRA, CPAO, DANILO RENATO SANTIAGO SANTANA, GRADUANDO UNIGRAN, PATRICIA PAULA BELLON, DOUTORANDA UFGD, and FABRICIO CORREIA DE OLIVEIRA, DOCENTE UFGD.

Subjects
Inseto, biological control, Parasitóide, Controle Biológico, Insect, Parasitode
Published
2014

33. Genome scan for postmortem carcass traits in Nellore cattle1

Author

Júnior, G. A. Fernandes, primary, Costa, R. B., additional, de Camargo, G. M. F., additional, Carvalheiro, R., additional, Rosa, G. J. M., additional, Baldi, F., additional, Garcia, D. A., additional, Gordo, D. G. M., additional, Espigolan, R., additional, Takada, L., additional, Magalhães, A. F. B., additional, Bresolin, T., additional, Feitosa, F. L. B., additional, Chardulo, L. A. L., additional, de Oliveira, H. N., additional, and de Albuquerque, L. G., additional

Published
2016
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37. Genetic parameter estimates for carcass traits and visual scores including or not genomic information1

Author

Gordo, D. G. M., primary, Espigolan, R., additional, Tonussi, R. L., additional, Júnior, G.A.F., additional, Bresolin, T., additional, Magalhães, A. F. Braga, additional, Feitosa, F. L., additional, Baldi, F., additional, Carvalheiro, R., additional, Tonhati, H., additional, de Oliveira, H. N., additional, Chardulo, L. A. L., additional, and de Albuquerque, L. G., additional

Published
2016
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40. Genome-wide association study for growth traits in Nelore cattle.

Author

Terakado, A. P. N., Costa, R. B., de Camargo, G. M. F., Irano, N., Bresolin, T., Takada, L., Carvalho, C. V. D., Oliveira, H. N., Carvalheiro, R., Baldi, F., and de Albuquerque, L. G.

Abstract

The objective of this study was to investigate the association of single nucleotide polymorphisms (SNPs) with birth weight, weight gain from birth to weaning and from weaning to yearling, yearling height and cow weight in Nelore cattle. Data from 5064 animals participating in the DeltaGen and PAINT breeding programs were used. The animals were genotyped with a panel of 777 962 SNPs (Illumina BovineHD BeadChip) and 412 993 SNPs remained after quality control analysis of the genomic data. A genome-wide association study was performed using a single-step methodology. The analyses were processed with the BLUPF90 family of programs. When applied to a genome-wide association studies, the single-step GBLUP methodology is an iterative process that estimates weights for the SNPs. The weights of SNPs were included in all analyses by iteratively applying the single-step GBLUP methodology and repeated twice so that the effect of the SNP and the effect of the animal were recalculated in order to increase the weight of SNPs with large effects and to reduce the weight of those with small effects. The genome-wide association results are reported based on the proportion of variance explained by windows of 50 adjacent SNPs. Considering the two iterations, only windows with an additive genetic variance >1.5% were presented in the results. Associations were observed with birth weight on BTA 14, with weight gain from birth to weaning on BTA 5 and 29, with weight gain from weaning to yearling on BTA 11, and with yearling height on BTA 8, showing the genes TMEM68 (transmembrane protein 8B) associated with birth weight and yearling height, XKR4 (XK, Kell blood group complex subunit-related family, member 4) associated with birth weight, NPR2 (natriuretic peptide receptor B) associated with yearling height, and REG3G (regenerating islet-derived 3-gamma) associated with weight gain from weaning to yearling. These genes play an important role in feed intake, weight gain and the regulation of skeletal growth. [ABSTRACT FROM AUTHOR]

Published
2018
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41. Estimativa da taxa de infecção por Babesia bovis usando a técnica de RT-PCR em animais de diferentes grupos genéticos

Author

BILHASSI, T. B., IBELLI, A. M. G., GIGLIOTI, R., MALAGO JUNIOR, W., REGITANO, L. C. de A., OLIVEIRA, M. C. de S., OLIVEIRA, H. N. de, TALITA BARBAN BILHASSI, UNESP/JABOTICABAL, ADRIANA MERCIA GUARATINI IBELLI, UFSCar/SÃO CARLOS, SP, RODRIGO GIGLIOTI, UNESP/JABOTICABAL, WILSON MALAGO JUNIOR, CPPSE, LUCIANA CORREIA DE ALMEIDA REGITANO, CPPSE, MARCIA CRISTINA DE SENA OLIVEIRA, CPPSE, and HENRIQUE NUNES DE OLIVEIRA, UNESP.

Subjects
Gado de Corte, Resistência, Método, Babesioses
Abstract

O objetivo deste trabalho foi padronizar um protocolo de quantificação de Babesia bovis que possibilitasse comparar o nível de infecção dos animais de diferentes grupos genéticos e faixas etárias. Foram utilizadas amostras de sangue colhidas de 150 bovinos, criados em regiões endêmicas para as babesioses. Após a extração do DNA, foram realizadas reações de RT-PCR para todos os indivíduos. A curva padrão foi elaborada a partir da purificação e quantificação dos produtos de PCR. Foram observadas diferenças significativas (P

Published
2011

44. Genotype × environment interaction for age at first calving, scrotal circumference, and yearling weight in Nellore cattle using reaction norms in multitrait random regression models

Author

Chiaia, H. L. J., primary, de Lemos, M. V. A., additional, Venturini, G. C., additional, Aboujaoude, C., additional, Berton, M. P., additional, Feitosa, F. B., additional, Carvalheiro, R., additional, Albuquerque, L. G., additional, de Oliveira, H. N., additional, and Baldi, F., additional

Published
2015
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46. Physical characteristics and fertility of fractionated donkey semen cooled at 5°C.

Author

Carvalho, L. E., Filho, J. M. Silva, Palhares, M. S., Sales, A. L. R., Gonczarowska, A. T., Oliveira, H. N., Resende, M. C., Neves, M. G., and Madison, R. J.

Abstract

Copyright of Arquivo Brasileiro de Medicina Veterinaria e Zootecnia is the property of Universidade Federal de Minas Gerais, Escola de Veterinaria and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2017
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48. Comparação entre metodologias para avaliar a idade à primeira concepção em éguas puro-sangue inglês

Author

Mota, M.D.S., Taveira, R. Z., Oliveira, H. N., Mota, M.D.S., Taveira, R. Z., and Oliveira, H. N.

Abstract

In Brazil, due to the breeding season for Thoroughbred, the reproductive data are normally truncate, since the breeders try to get animals that were born at the beginning of the breeding season in order to take their competitive advantages (more developed, mature and trained animals) compared to animals born later in the same breeding season. To analyze these data suitable methods should be used. Then, this paper aims to compare three methodologies: the method of maximum restricted likelihood, using MTDFREML, bayesian analysis without censured data by software MTGSAM and bayesian analysis with censured data by soft- ware LMCD, to evaluate age at first conception in thoroughbred mares, in order to verify its impact on the choice of stallions during selection. The database contained 3509 records for age at first conception (months) for thoroughbred mares. The heritability estimates were 0.23, 0.30 and 0.0926 (log scale), for MTDF, MTGSAM and LMCD, respectively. Considering all animals in the pedigree (6713), ranking correlations varied from 0.91 to 0.99. When only stallions were considered (656), those varied from 0.48 to 0.99 (considering different percentages of selected males) between evaluation methods. The highest changes in the general classification were observed when LMCD was compared to the other two methods. As the linear censured model is the most suitable for trait analysis with censured data, it was observed that censure information would lead to the choice of different animals during the selection process, when compared to the two other methodologies., No Brasil, devido à existência do ano hípico para a raça Puro-Sangue Inglês, os dados reprodutivos são geralmente truncados, já que os criadores tentam obter produtos nascidos no começo do ano hípico, a fim de aproveitarem a vantagem competitiva (animais mais desen- volvidos, maduros e treinados) destes em relação aos animais nascidos mais tardiamente no mesmo ano hípico. Para análise destes dados deve-se utilizar metodologias adequadas. Sendo assim, este trabalho objetivou comparar três metodologias: método da máxima verossimilhança restrita, com a utilização do aplicativo MTDFREML, análise bayesiana sem dados censurados por meio do programa MTGSAM e análise bayesiana com da- dos censurados pelo programa LMCD, para avaliação da idade à primeira concepção em éguas da raça Puro-Sangue Inglês, a fim de verificar seu impacto na escolha de reprodutores durante a seleção. O arquivo de dados continha 3509 registros de idade à primeira concepção (meses) de éguas da raça Puro-Sangue Inglês. As estimativas de herdabilidades obtidas foram 0,23, 0,30 e 0,0926 (escala log), para o MTDF, MTGSAM e LMCD, respectivamente. Considerando todos os animais do pedigree (6713), as correlações de ranking variaram de 0,91 a 0,99. Quando conside- rado apenas os garanhões (656), variaram de 0,48 a 0,99 (considerando diferentes porcentagens de machos selecionados) entre as metodologias de avaliação. As maiores mudanças na classificação geral foram observadas quando comparado o LMCD com as outras duas metodologias. Considerando que o modelo linear censurado é o mais adequado para análise de características com dados censurados, observou- se que as informações de censura levariam a escolha de diferentes animais durante o processo de seleção, quando comparado com as outras duas metodologias de análise.

Published
2011

49. Inferênce bayesiana na prediçao de valores genéticos do peso aos 365 dias de bovinos de corte

Author

Madureira, A.P., Oliveira, H. N., Rosa, G.J.M., Bezerra, L.F., Marques, L.F.A., Madureira, A.P., Oliveira, H. N., Rosa, G.J.M., Bezerra, L.F., and Marques, L.F.A.

Abstract

Data from purebred Simmental, Nellore and Canchim cattle breeds obtained from the respective Brazilian Associations of Breeders were used to estimate variance components and to predict genetic values for 365 days weight. The results obtained by Bayesian inference were compared to those from Restricted Maximum Likelihood (REML) and Best Linear Unbiased Prediction (BLUP), which are the most commonly used methods of estimation and prediction in animal breeding. The two methods presented similar point estimates but the study of the marginal posterior distributions in the Bayesian approach yields more detailed information about the parameters and other unknowns in the model., Dados de animais Simental e Canchim, fornecidos por suas respectivas Associações Brasileiras de Criadores, e Nelore fornecidos pela Associação Nacional de Criadores e Pesqui-sadores foram utilizados na estimação de componentes de variância e na predição de valores genéticos para o peso aos 365 dias de idade. Os resultados obtidos pela inferência bayesiana foram comparados com aqueles obtidos pelos métodos da máxima verossimilhança restrita (REML) e melhor preditor linear não-viesado (BLUP), que se referem à metodologia mais comumente utilizada para a estimação e predição em melhoramento genético, respectivamente. Os dois métodos forneceram estimativas pontuais semelhantes, mas as distribuições marginais a posteriori obtidas com o método Bayesiano oferecem informação mais detalhada sobre os parâmetros dos modelos.

Published
2009

50. Effects of ai-ovulation intervals on fertility of inseminated mares with diluted, cooling and transported semen

Author

Silva Filho, J. M., Valle, G. R., Saturnino, H. M., Palhares, M. S., Oliveira, H. N. [UNESP], Universidade Federal de Minas Gerais (UFMG), Universidade Estadual Paulista (Unesp), and Universidade Estadual Paulista (UNESP)

Subjects
conception rate, insemination/ovulation interval, equine
Abstract

Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2014-02-26T17:27:56Z No. of bitstreams: 1 WOS000079862000010.pdf: 2942573 bytes, checksum: 17851dd5eb66a787d49e401584df1901 (MD5) Made available in DSpace on 2014-02-26T17:27:56Z (GMT). No. of bitstreams: 1 WOS000079862000010.pdf: 2942573 bytes, checksum: 17851dd5eb66a787d49e401584df1901 (MD5) Previous issue date: 1998-10-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:27:26Z No. of bitstreams: 1 WOS000079862000010.pdf: 2942573 bytes, checksum: 17851dd5eb66a787d49e401584df1901 (MD5) Made available in DSpace on 2014-05-20T15:27:26Z (GMT). No. of bitstreams: 1 WOS000079862000010.pdf: 2942573 bytes, checksum: 17851dd5eb66a787d49e401584df1901 (MD5) Previous issue date: 1998-10-01 One hundred forty seven cycles of mares were allocated in a completely randomized experiment, with different number of replications and divided in four treatments (T1 = 24 hours preovulation; T2 = 48 hours preovulation; T3 = 48 hours preovulation and in tbe same day of ovulation; T4 = 72 hours preovulation and in the same day of ovulation), in order to study the effect of AI/ovulation interval on mare fertility. The mares were inseminated three times for wek (monday, wednesday and friday), with semen of only one stallion diluted in extender skim milk-glucose, using a volume of 15ml, with 400 x 10(6) sptz viable, cooled at 14 degrees C/3.6 hours, and transported in modified container Celle. Conception rates were not different according to the treatments. So, observed spermatic survival for 60 hours showed the practicability of the inseminations on monday, wednesday and friday. UFMG, Escola Vet, BR-30161970 Belo Horizonte, MG, Brazil UNESP, FMVZ, Dept Zootecn, Botucatu, SP, Brazil UNESP, FMVZ, Dept Zootecn, Botucatu, SP, Brazil

Published
1998

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