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Dive into the research topics where Stefano Juliano Tavares de Andrade is active.

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Featured researches published by Stefano Juliano Tavares de Andrade.


Brazilian Journal of Veterinary Research and Animal Science | 2004

Efeito de alguns tratamentos sobre a qualidade da silagem de capim-elefante cultivar Napier (Pennisetum purpureum, Schum)

Stefano Juliano Tavares de Andrade; Laércio Melotti

Vinte aditivos* foram utilizados na ensilagem de capim-elefante (80 dias de crescimento), em silos de laboratorio: sem aditivos (T1); 0,5% de ureia (T2); 10% de fibra de algodao (T3); 10% de feno de Capim Elefante (T4); 10% de feno de Guandu (T5); emurchecimento por 6 horas (T6); 2% de residuo de varredura de usina de acucar (T7); 2% de fuba de milho (T8); 4% de fuba de milho (T9); 6% de fuba de milho (T10); 2% de fuba de milho e 0,5% de ureia (T11); 4% de fuba de milho e 0,5% de ureia (T12); 6% de fuba de milho e 0,5% de ureia (T13); 1% de melaco em po (T14); 2% de melaco em po (T15); 3% de melaco em po (T16); 1% de melaco em po e 0,5% de ureia (T17); 2% de melaco em po e 0,5% de ureia (T18); 3% de melaco em po e 0,5% de ureia (T19); inoculante bacteriano denominado Biosilo (T20). O pH foi maior nos tratamentos T1 (5,36) e T5 (5,33), sendo que nos demais este indice variou de 4,29 a 3,89, sendo estatisticamente semelhantes entre si, podendo ser considerados como dentro da faixa ideal. Os maiores teores de nitrogenio amoniacal foram obtidos nos tratamentos compostos de ureia e em T3. Em comparacao ao uso isolado da ureia, a inclusao de 3% de melaco junto a este reduziu a producao de nitrogenio amoniacal e o valor obtido foi semelhante aos demais tratamentos. De maneira geral, as silagens se mostraram predominantemente laticas e a concentracao de acido latico foi semelhante entre os diversos tratamentos. T2 e T3 apresentaram maior producao de acido butirico e T2 e T9 maiores teores de acido acetico. Os coeficientes de DIVMS variaram de 26,36 a 51,31% e as perdas de MS foram superiores em T2 (11,08%), T3 (10,50%) e T4 (9,80%) e semelhante nos demais.


Revista Brasileira De Zootecnia | 2001

Efeitos da adição de inoculantes microbianos sobre a composição bromatológica e perfil fermentativo da silagem de sorgo produzida em silos experimentais

Paulo Henrique Mazza Rodrigues; Ana Lúcia Senatore; Stefano Juliano Tavares de Andrade; Juliana Martins Ruzante; Carlos de Sousa Lucci; Felix Ribeiro de Lima

Sorghum Agroceres 2005 (35.9% DM) was ensiled in 16 plastic experimental silos, forming four treatments: control, Sil-All (Streptococcus faecium, Pediococcus acidilactici, Lactobacillus plantarum, amylase, hemicellulase, and cellulase), Silobac (L. plantarum, S. faecium, and Lactobacillus sp), and Pioneer 1174 (S. faecium and L. plantarum). Silos were opened 120 days after ensiling and silage was sampled to proceed chemical analyses. Sil-All, Silobac and Pioneer decreased dry matter content and increased ethylic alcohol concentration and DM losses compared to control. Sil-All increased NDF content compared to control and decreased starch content compared to Silobac, but not as compared to control. Pioneer decreased aerobic stability of silage compared to control. The CP, ADIN, soluble carbohydrates, ADF, lignin, hemicellulose, and celullose contents, in vitro digestibility, buffering capacity, acetic, propionic, butyric and lactic acids, pH and ammonia concentration did not suffer influence of treatments.


Revista Brasileira De Zootecnia | 2002

Valor nutritivo da silagem de milho sob o efeito da inoculação de bactérias ácido-láticas

Paulo Henrique Mazza Rodrigues; Stefano Juliano Tavares de Andrade; Juliana Martins Ruzante; Felix Ribeiro de Lima; Laércio Melotti

The results of using lactic acid bacteria in ensiling has been conflicting. This study was conducted to evaluate the effects of microbially inoculated corn plant for silage production on total digestibility in wethers. Eight wethers were assigned to a cross-over design, with two periods (8 animals/treatment) and treatments were: control corn silage (28.6% DM and 9.6% CP, on average) or under inoculation with Pioneer 1174 product (Streptococcus faecium and Lactobacillus plantarum). Each period extended for twenty-one days, the last five used for feces and urine collection. The inoculation did not influence total digestibility of DM (inoculated = 64.5% vs. control = 64.6%), CP (56.0% vs. 54.4%), FNE (69.2% vs. 70.2%), CF (56.3% vs. 54.6%), NDF (49.0% vs. 52.2%), ADF (48.2% vs. 48.6%), starch (98.8% vs. 98.7%), TDN (65.1% vs. 65.1%), N retention (0.59 vs. 0.65 g of N/animal/day) or DM intake (2.13 vs. 2.28% of BW), but there was a tendency (P=0.0878) of increasing digestibility of EE (86.7% vs. 85.0%). Present data does not support to recomend lactic acid bacteria for inoculation of corn crop for silage production.The results of using lactic acid bacteria in ensiling has been conflicting. This study was conducted to evaluate the effects of microbially inoculated corn plant for silage production on total digestibility in wethers. Eight wethers were assigned to a cross-over design, with two periods (8 animals/treatment) and treatments were: control corn silage (28.6% DM and 9.6% CP, on average) or under inoculation with Pioneer 1174 product (Streptococcus faecium and Lactobacillus plantarum). Each period extended for twenty-one days, the last five used for feces and urine collection. The inoculation did not influence total digestibility of DM (inoculated = 64.5% vs. control = 64.6%), CP (56.0% vs. 54.4%), FNE (69.2% vs. 70.2%), CF (56.3% vs. 54.6%), NDF (49.0% vs. 52.2%), ADF (48.2% vs. 48.6%), starch (98.8% vs. 98.7%), TDN (65.1% vs. 65.1%), N retention (0.59 vs. 0.65 g of N/animal/day) or DM intake (2.13 vs. 2.28% of BW), but there was a tendency (P=0.0878) of increasing digestibility of EE (86.7% vs. 85.0%). Present data does not support to recomend lactic acid bacteria for inoculation of corn crop for silage production.


Revista Brasileira De Zootecnia | 2001

Inoculação Microbiana da Alfafa para Ensilagem sobre a Digestibilidade Aparente em Carneiros

Paulo Henrique Mazza Rodrigues; Stefano Juliano Tavares de Andrade; Luis Fernando Simões de Almeida; Paula Marques Meyer; Felix Ribeiro de Lima; Carlos de Sousa Lucci

This study was conducted to evaluate the effects of microbially inoculated alfafa silage on total digestibility in wethers. Twelve wethers were randomly assigned to two treatments: alfalfa haylage (35.7% DM and 19.6% CP, on average) control or microbially inoculated with Silobac product (Lactobacillus plantarum and Pediococcus pentosaceus). The experimental period extended for twenty-one days, the last five used for feces and urine collection. The inoculation increased total digestibility of DM (inoculated = 62.5% vs. control = 59.5%), NFE (70.9% vs. 65.7%), NDF (53.8% vs. 48.8%), ADF (52.5% vs. 44.7%), starch (84.0% vs. 80.2%), TDN (59.5% vs. 56.7%) and DM intake (2.82 vs. 2.48% of BW), but it did not influence total digestibility of CP (73.9% vs. 73.2%), EE (50.7% vs. 54.3%), CF (47.1% vs. 43.9%) or N retention (3.27 vs. 2.86 g of N/animal/day).


Revista Brasileira De Zootecnia | 2002

Composição bromatológica e perfil fermentativo da silagem de capim-elefante obtida em diferentes tipos de silos experimentais e no silo tipo trincheira

Paulo Henrique Mazza Rodrigues; Silvia Ban de Gouvêa Pedroso; Laércio Melotti; Stefano Juliano Tavares de Andrade; Felix Ribeiro de Lima

One type of commercial silo and three types of experimental silos were used for determination of chemical composition and fermentation characteristics of elephant grass (Pennisetum purpureum) (33.0% DM and 4.2% CP) ensiled in two different densities (400 or 600 kg of silage/m3): 1) commercial bunker silo sampled at 30 (top) and 60 (deep) cm from the top; 2) plastic silo with bulsen valve; 3) plastic bag; and 4) concrete pipe. A completely randomized design was used. The concrete pipe silo produced silage with higher pH, ADIN and lignin values, as well as lower in vitro digestibility, buffering capacity, and lactic acid and NH3-N concentrations. Experimental silos had superior quality than commercial silos to starch, soluble carbohydrates, buffering capacity, NH3-N, acetic, propionic, butyric, and lactic acids concentrations. Variation in fermentation in different levels of commercial silos was greater than in different types of experimental ones.


Revista Brasileira De Zootecnia | 2001

Effects of Microbial Inoculants on Chemical Composition and Fermentation Characteristics of Sunflower Silage Produced in Experimental Silos

Paulo Henrique Mazza Rodrigues; Tatiana Ferrante de Almeida; Laércio Melotti; Stefano Juliano Tavares de Andrade; Kleber da Cunha Peixoto Júnior

Sunflower (20.0% DM and 10.0% CP) was ensiled in 16 plastic experimental silos, forming four treatments: control, Sil-All (S. faecium, P. acidilactici, L. plantarum, amylase, hemicellulase, and cellulase), Silobac (L. plantarum, S. faecium, and Lactobacillus sp.), and Pioneer 1174 (S. faecium and L. plantarum). Silos were opened 125 days after ensiling and sampled to proceed chemical analyses. Pioneer increased soluble carbohydrates, ethylic alcohol concentration, and buffering capacity. This inoculant decreased pH, ammonia, and acetic acid concentration compared to control. Pioneer also increased starch content compared to control, but Sil-All decreased. The DM, CP, ADIN, NDF, ADF, and lignin contents, In vitro digestibility of the DM, DM losses, aerobic stability, propionic, butyric and lactic acids did not suffer influence of treatments.Sunflower (20.0% DM and 10.0% CP) was ensiled in 16 plastic experimental silos, forming four treatments: control, Sil-All (S. faecium, P. acidilactici, L. plantarum, amylase, hemicellulase, and cellulase), Silobac (L. plantarum, S. faecium, and Lactobacillus sp.), and Pioneer 1174 (S. faecium and L. plantarum). Silos were opened 125 days after ensiling and sampled to proceed chemical analyses. Pioneer increased soluble carbohydrates, ethylic alcohol concentration, and buffering capacity. This inoculant decreased pH, ammonia, and acetic acid concentration compared to control. Pioneer also increased starch content compared to control, but Sil-All decreased. The DM, CP, ADIN, NDF, ADF, and lignin contents, In vitro digestibility of the DM, DM losses, aerobic stability, propionic, butyric and lactic acids did not suffer influence of treatments.


Acta Scientiarum. Animal Sciences | 2008

Valor nutritivo da silagem de capim-elefante cultivar Napier ( Pennisetum purpureum , Schum) inoculada com bactérias ácido-láticas

Paulo Henrique Mazza Rodrigues; Stefano Juliano Tavares de Andrade; Thomas Fernandes; Felix Ribeiro de Lima; Laércio Melotti; Carlos de Sousa Lucci


Acta Scientiarum. Animal Sciences | 2008

Estudo comparativo de diferentes tipos de silos sobre a composição bromatológica e perfil fermentativo da silagem de milho

Paulo Henrique Mazza Rodrigues; Silvia Ban de Gouvêa Pedroso; Laércio Melotti; Stefano Juliano Tavares de Andrade; Felix Ribeiro de Lima


Acta Scientiarum. Animal Sciences | 2003

Adição de inoculantes microbianos sobre a composição química e perfil fermentativo da silagem de capim-elefante ( Pennisetum purpureum , Schum) - DOI: 10.4025/actascianimsci.v25i2.2080

Paulo Henrique Mazza Rodrigues; Thomas Fernandes Teixeira Lopes; Stefano Juliano Tavares de Andrade; Laércio Melotti; Carlos de Sousa Lucci; Felix Ribeiro de Lima; Paula Marques Meyer


Acta Scientiarum. Animal Sciences | 2008

Valor nutritivo da silagem de sorgo tratada com inoculantes enzimo-microbianos

Paulo Henrique Mazza Rodrigues; Ana Lúcia Senatore; Carlos de Sousa Lucci; Stefano Juliano Tavares de Andrade; Felix Ribeiro de Lima; Laércio Melotti

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