Revista Brasileira de Saúde e Produção Animalhttps://www.scielo.br/journal/rbspa/feed/2024-02-02T20:05:13.281000ZVol. 25 - 2024WerkzeugAntimicrobial resistance of bacterial agents of bovine mastitis from dairy properties in the metropolitan region of São Luís – MA10.1590/S1519-9940202300332024-02-02T20:05:13.281000Z2020-08-09T06:49:10.845000ZBrito, Daniela Aguiar PenhaCosta, Francisca Neide
<em>Brito, Daniela Aguiar Penha</em>;
<em>Costa, Francisca Neide</em>;
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ABSTRACT The objective of this study was to evaluate the “in vitro” antimicrobial susceptibility profiles of Staphyloccusspp. and Streptococcus spp. isolated from the milk of cows with infectious mastitis. This study was conducted on 14 dairy farms located in four municipalities on the Island of São Luís, Maranhão, Brazil. The isolates were obtained by bacteriological cultivation of milk samples, followed by morphological and biochemical characterization. Antimicrobial susceptibility tests were performed using the disk diffusion method. The results showed that none of the principles were 100% effective against the isolates. Penicillin, ampicillin, and amoxicillin showed higher rates of resistance in isolates of Coagulase-positive Staphylococcus (80%, 77.2%, and 77.2%, respectively), Coagulase-negative Staphylococcus (80%, 75.4%, and 75.4%, respectively ), and S. aureus (94.3%, 88.6%, and 88.6%, respectively). Isolates of Streptococcus showed a higher frequency of resistance to streptomycin (94%), tetracycline (86%), and lincomycin (76%). Isolates from the Coagulase-negative Staphylococcus group had the highest multidrug resistance profile, with 32.65% of the strains being simultaneously resistant to more than eight antibiotics. A high frequency of isolates of agents that cause bovine mastitis with multidrug-resistant phenotypes was determined, making it necessary to base the treatment of animals on the diagnosis of the causative pathogen and patterns of sensitivity to antimicrobials.Egg quality and performance of Japanese quail supplemented with organic and inorganic selenium10.1590/S1519-9940202300272024-02-02T20:05:13.281000Z2020-08-09T06:49:10.845000ZTORGA, Anderson de PaulaTEIXEIRA, Alexandre de OliveiraREIS, Renata de SouzaMOREIRA, Leonardo MarmoSOUSA, Júlio César Melo deMORAES, Monique Silva deLACERDA, Alicia Beatriz Ferreira deLYON, Juliana PereiraROCHA JUNIOR, Carlos Magno da
<em>Torga, Anderson De Paula</em>;
<em>Teixeira, Alexandre De Oliveira</em>;
<em>Reis, Renata De Souza</em>;
<em>Moreira, Leonardo Marmo</em>;
<em>Sousa, Júlio César Melo De</em>;
<em>Moraes, Monique Silva De</em>;
<em>Lacerda, Alicia Beatriz Ferreira De</em>;
<em>Lyon, Juliana Pereira</em>;
<em>Rocha Junior, Carlos Magno Da</em>;
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ABSTRACT The objective of this study was to assess the impact of supplementing quail diets with organic selenium (Se) at various concentrations and inorganic Se on performance, egg quality, and storage time under different conditions. In the performance trial, 360 quail aged 27 weeks were included in a completely randomized design comprising six treatments: Basal Diet; 0.15, 0.30, 0.45, and 0.60 ppm of organic Se; and 0.60 ppm of inorganic Se, supplemented “on top” of the basal diet. Six replications were used, each with 10 birds per experimental unit. For the evaluation of storage time and conditions, 720 quail eggs were employed in a completely randomized design. The design featured a 6×5×2 factorial arrangement consisting of six treatments derived from the performance trial, five storage times (7, 14, 21, 28, and 35 days), and two storage forms (refrigerated and non-refrigerated). Each replication contained one egg, totaling 12 replications. Results indicated no significant effect of organic or inorganic Se supplementation in the diets on performance or egg quality. However, Se concentration increased linearly in eggs from quail fed increasing levels of this nutrient. Selenium supplementation affected storage time and egg quality under refrigerated and room-temperature conditions. In conclusion, on-top Se supplementation at concentrations ranging from 0.15 to 0.60 ppm, whether in organic or inorganic forms, does not impact quail performance. Nevertheless, it leads to increased Se deposition in eggs, contributing to the maintenance of egg quality throughout the storage period.Productive and economic efficiency in finishing reproductive cull ewe lambs with high concentrate diets10.1590/S1519-9940202300372024-02-02T20:05:13.281000Z2020-08-09T06:49:10.845000ZGREGÓRIO, Odair AparecidoSANDINI, Itacir EloiFALBO, Margarete KimieANDRADE, Marcos Rafael deSZYCHTA, MarinaBRANQUINHO, Marcela Calciolari
<em>Gregório, Odair Aparecido</em>;
<em>Sandini, Itacir Eloi</em>;
<em>Falbo, Margarete Kimie</em>;
<em>Andrade, Marcos Rafael De</em>;
<em>Szychta, Marina</em>;
<em>Branquinho, Marcela Calciolari</em>;
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ABSTRACT This study aimed to evaluate the performance of reproductive culled lambs kept in confinement, through weight gain, carcass yield, and the state of non-carcass components using two high concentrate diets (90%). One diet was formulated on the property compared to commercially available concentrate. The cost-benefits of each diet were analyzed and compared. We used 24 Corriedale lambs, aged 180 days weighing an average of 28 ± 4 kg. The animals were randomly separated into two groups: the commercial concentrate group (CC) which received 0.4% and 4% of their live weight in Tifton hay and commercial concentrate, respectively, and the property concentrate group (CP) received hay and a high-concentrate diet produced on the property (using whole grain corn as a base), in the same proportions. The study was conducted, for a period of 55 days, along with ten days of adaptation, until they reached 40 ± 2 kg body weight (BW). Animals in the property concentrate group achieved a higher average daily gain (0.232 kg/day), but there was no significant difference in carcass yield between the groups The weights of non-carcass components such as the liver, spleen, and kidneys with fat were higher in the concentrate group. The property concentrate group presented a net income of R$ 0.40, while the animals that received the commercial concentrate presented a negative income of R$ - 0.45, per day. Therefore, the use of a high-grain diet produced on the property under the conditions of this study allowed for better weight gain, and a better cost-benefit ratio.Digestibility, in vitro fermentation parameters <i>and kinetic degradation</i> of diets with crambe crushed10.1590/S1519-9940202200342024-02-02T20:05:13.281000Z2020-08-09T06:49:10.845000ZGOES, Rafael Henrique de Tonissi e Buschinelli dePeixoto, Eduardo Lucas TerraGandra, Jefferson RodriguesSilva, Luiz Henrique Xavier daOsmari, Milene PuntelAnschau, Douglas GabrielSilva, Gleice Kélen Rodrigues daCruz, Fernanda Naiara Fogaça da
<em>Goes, Rafael Henrique De Tonissi E Buschinelli De</em>;
<em>Peixoto, Eduardo Lucas Terra</em>;
<em>Gandra, Jefferson Rodrigues</em>;
<em>Silva, Luiz Henrique Xavier Da</em>;
<em>Osmari, Milene Puntel</em>;
<em>Anschau, Douglas Gabriel</em>;
<em>Silva, Gleice Kélen Rodrigues Da</em>;
<em>Cruz, Fernanda Naiara Fogaça Da</em>;
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ABSTRACT Aimed with this study was evaluate the increasing levels of crambe crushed, on in vitro digestibility of dry matter (IVDDM), organic matter (IVDOM) and crude protein (IVDCP), parameters of fermentation and kinetics of the cumulative gas production. The crushed crambe were included in the diets at 0; 50; 100; 150 g/kg of DM. There was a quadratic effect of the proportions of crambe crushed in the concentrated supplements on IVDDM and IVDOM (maximum point at 0.25 and 0.91 g Kg-1 DM, respectively). Total gas production (A + D) was influenced by the presence of crambe crushed with quadratic effect on minimal point on 0.02 g Kg-1 DM. There was a quadratic effect for pH in the collection times in all diets, the lowest pH values were observed between 4.8 to 8.7 hours. There was a quadratic effect for ammoniacal nitrogen in the collection times in all diets with peaks of NH3-N production occurred between 4.8 and 6.3 hours after the beginning of the incubation. Concluded that the inclusion of crambe crushed up to 150 g kg-1 DM in diets for ruminants does not impair the ruminal degradation kinetics.<i>In vitro</i> gas production from pearl millet cultivars under nitrogen levels10.1590/S1519-9940202300342024-02-02T20:05:13.281000Z2020-08-09T06:49:10.845000ZFRANÇA, Aldi Fernandes de SouzaSILVA, Nelson Rafael daOLIVEIRA, Leonardo GuimarãesBRUNES, Ludmilla CostaCORRÊA, Daniel StaciariniNASSAR, Reginaldo FerreiraJACOVETTI, ReginaldoSILVA PAUSE, Alzira Gabriela da
<em>França, Aldi Fernandes De Souza</em>;
<em>Silva, Nelson Rafael Da</em>;
<em>Oliveira, Leonardo Guimarães</em>;
<em>Brunes, Ludmilla Costa</em>;
<em>Corrêa, Daniel Staciarini</em>;
<em>Nassar, Reginaldo Ferreira</em>;
<em>Jacovetti, Reginaldo</em>;
<em>Silva Pause, Alzira Gabriela Da</em>;
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ABSTRACT This study aimed to evaluate the in vitro gas production from three pearl millet cultivars submitted to four nitrogen levels. The treatments consisted of three pearl millet cultivars (ADR 500, ADR 7020, and LABH 70732) and four nitrogen levels (0, 50, 100, and 200 kg/ha), using urea as the nitrogen source. A 3 x 4 factorial experimental design, employing a randomized block setup, was used to assess both gas production and digestibility. No interaction was observed between nitrogen doses and fermentative parameters on in vitro gas production from the dry matter of pearl millet cultivars. Nitrogen had no impact on the dry matter content or chemical composition of the cultivars. Consistency prevailed in the chemical composition across the various cultivars, a trend that extended to the gas production rates for both soluble and insoluble contents. Notably, nitrogen fertilizer exerted an influence on the fermentation pattern of organic matter, gas production, and lag time for the cultivars. Nitrogen fertilization is advised solely for enhancing fermentative attributes in the case of the cultivar ADR 7020.