Anais da Academia Brasileira de Ciencias最新文献

Reproductive biology and phenology of Dyckia erectiflora (L.B.Sm.) Forzza (Bromeliaceae): An endemic bromeliad from rocky outcrops of the Northeastern Brazilian Cerrado. 直立戴克氏菌的生殖生物学和物候学凤梨科：产于巴西塞拉多东北部岩石露头的特有凤梨科植物。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-10-06 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520250273

Mariana Lenara DE A Masrua, Bruno Ayron DE S Aguiar, Elda Simone Dos S Soares, Maria DA Conceição P DE Oliveira, Gardene Maria DE Sousa

{"title":"Reproductive biology and phenology of Dyckia erectiflora (L.B.Sm.) Forzza (Bromeliaceae): An endemic bromeliad from rocky outcrops of the Northeastern Brazilian Cerrado.","authors":"Mariana Lenara DE A Masrua, Bruno Ayron DE S Aguiar, Elda Simone Dos S Soares, Maria DA Conceição P DE Oliveira, Gardene Maria DE Sousa","doi":"10.1590/0001-3765202520250273","DOIUrl":"https://doi.org/10.1590/0001-3765202520250273","url":null,"abstract":"The reproductive success of rupicolous bromeliads in the Cerrado depends on climatic conditions and pollinators availability. This study analyzed the phenology and reproductive biology of Dyckia erectiflora (L.B.Sm.) Forzza, an endemic rupicolous bromeliad from Northeastern Brazilian Cerrado. Reproductive phenophases were monitored for two consecutive years in Sete Cidades National Park, Piauí, Brazil. The floral biology and pollination system of the species were evaluated. Flowering and fruiting were seasonal, with delays observed in the second year of the study. Flowering did not correlate with rainfall, occurring during the transition from the rainy to the dry season, while fruiting occurred during the dry season. Seed dispersal, which is anemochoric, ceases at the end of the dry season, facilitating germination in the early rainy months. Flowers exhibit a brief temporal and spatial separation at the beginning of the maturation of the reproductive whorls. The anthesis begins in the late afternoon, with the partial exposure of the receptive stigma, although floral resources such as pollen and nectar are available the following day. The pollination system is melittophilous by exotic bees, rare for the ornithophilous genus. The absence of native vertebrate pollinators raises concerns about the anthropogenic impact on the species' pollination efficiency.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 4","pages":"e20250273"},"PeriodicalIF":1.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Efficacy of thymol as a promising candidate substance against the exotic pest Achatina fulica Bowdich, 1822 (Mollusca, Gastropoda). 百里香酚作为一种有前景的候选物质对外来害虫黄斑蝶蛾的防治效果。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-10-06 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520250228

Paula DE Abreu, Antônio Marcos O Toledo, Vasconcelos O Silva Júnior, Erik Daemon, Marta T D'Agosto

{"title":"Efficacy of thymol as a promising candidate substance against the exotic pest Achatina fulica Bowdich, 1822 (Mollusca, Gastropoda).","authors":"Paula DE Abreu, Antônio Marcos O Toledo, Vasconcelos O Silva Júnior, Erik Daemon, Marta T D'Agosto","doi":"10.1590/0001-3765202520250228","DOIUrl":"https://doi.org/10.1590/0001-3765202520250228","url":null,"abstract":"Achatina fulica is a terrestrial snail native to the African continent but currently found in many countries worldwide. It is considered an urban and agricultural pest, causing significant economic losses. Therefore, substances extracted from plants have demonstrated effective results in pest control, such as thymol, a compound obtained from the essential oils of Lamiaceae plants. It is used in oral microbicide products, acting both as a bactericide and fungicide. This work aimed to evaluate the molluscicidal activity of thymol on adults and 30-day-old juveniles of A. fulica in bioassays. Nine hundred sixty adults and 960 juvenile snails. Thirty concentrations, between 80 and 0.01gL-1, were tested. Thymol acted as a molluscicide on A. fulica adults and juveniles at concentrations of 80 to 30gL-1 causing 100% mortality. No deaths were recorded for the control group. These results contribute to the control of this gastropod in highly infested areas, including in association with other control techniques. This is a difficult pest to control and even at present there is no effective control pest.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 4","pages":"e20250228"},"PeriodicalIF":1.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249343","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative analysis of structural chromosome variability and heterochromatin localization in Passiflora L. (Passifloraceae). 西番莲属植物结构染色体变异与异染色质定位的比较分析。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-10-06 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520250272

Kedma Raissa G Dos Santos, Kananda Laira G Marçal, Tiago L DO Nascimento, Natoniel Franklin DE Melo

{"title":"Comparative analysis of structural chromosome variability and heterochromatin localization in Passiflora L. (Passifloraceae).","authors":"Kedma Raissa G Dos Santos, Kananda Laira G Marçal, Tiago L DO Nascimento, Natoniel Franklin DE Melo","doi":"10.1590/0001-3765202520250272","DOIUrl":"https://doi.org/10.1590/0001-3765202520250272","url":null,"abstract":"Passiflora is the most diverse genus of the Passifloraceae family, and holds great economic importance. However, cytogenetic information is still limited for most species. This study aimed to analyze the karyotypes of nine Passiflora species, to determine the chromosome number and the distribution of heterochromatic regions by double staining with CMA/DAPI and by fluorescence in situ hybridization (FISH) with 35S and 5S rDNA probes. Eight species presented a karyotype with 2n=18 chromosomes, and in contrast, P. foetida was the only species to exhibit a karyotype with 2n=20. Double staining with CMA and DAPI revealed distinct staining patterns, with four CMA+ blocks located in the terminal regions of the chromosomes of eight species, except in P. foetida, where six CMA+ blocks were observed in the proximal regions. FISH identified four to six 35S rDNA sites in the terminal regions of the chromosomes in P. alata and P. edmundoi, and six sites in interstitial region in P. foetida. In these same species, two 5S rDNA sites were observed, and in P. foetida four sites in the subterminal regions. The observed chromosomal variations suggest significant genetic diversity in the genus, valuable data for studies of diversity, conservation and genetic improvement.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 4","pages":"e20250272"},"PeriodicalIF":1.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249322","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ecological Impacts of Artisanal Shrimp Trawling on Macroinvertebrate Bycatch in the Southwestern Atlantic, Brazil. 巴西西南大西洋手工虾拖网捕捞对大型无脊椎动物副渔获物的生态影响。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-10-06 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520250069

Meriane S Paula, Delfina Gutiérrez, Paulo Cesar DE Paiva, Christine Ruta

{"title":"Ecological Impacts of Artisanal Shrimp Trawling on Macroinvertebrate Bycatch in the Southwestern Atlantic, Brazil.","authors":"Meriane S Paula, Delfina Gutiérrez, Paulo Cesar DE Paiva, Christine Ruta","doi":"10.1590/0001-3765202520250069","DOIUrl":"https://doi.org/10.1590/0001-3765202520250069","url":null,"abstract":"Artisanal shrimp trawling represents an activity of considerable socioeconomic relevance, particularly in coastal communities. However, it is a non-selective fishing method known for capturing large amounts of bycatch, which negatively impacts benthic ecosystems, especially marine invertebrates. This study aimed to analyze the influence of depth, temperature, and fishing season on the distribution patterns, abundance, and biomass of macroinvertebrates captured as bycatch. Samples were collected during open and closed fishing seasons at depths ranging from 13 to 35 meters in commercial shrimp trawling operations in the Santana Archipelago, Macaé, Rio de Janeiro, Brazil. Generalized Linear Models (GLMs) were used to evaluate the effects of these environmental factors on macroinvertebrate biomass and density. The total biomass recorded was 236 kg, comprising 144 kg (61%) of macroinvertebrates and 92 kg (39%) of commercial shrimp. The shrimp-to-bycatch ratio was 1:1.6, with Crustacea accounting for the largest share of the total biomass. A total of 7,134 macroinvertebrate individuals were recorded, distributed among Crustacea (2,965 individuals; 41.56%), Mollusca (2,361; 33.10%), Cnidaria (1,709; 23.96%), Echinodermata (98; 1.37%), and Annelida (1; 0.01%). Capture rates of shrimp and macroinvertebrates varied between open and closed seasons. The high volume of bycatch highlights the need for improved management strategies in artisanal shrimp fisheries to mitigate environmental impacts in Macaé's marine ecosystems.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 4","pages":"e20250069"},"PeriodicalIF":1.1,"publicationDate":"2025-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249328","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Occurrence and Characterization of Microplastics in Coastal Beach Sand: Insights from a Case Study at Praia Vermelha, Brazil. 海岸沙滩中微塑料的发生和特征：来自巴西普拉亚维尔梅尔哈案例研究的见解。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-10-03 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520250019

Marina S Sacramento, Elton Jorge R Rodrigues, Karoline S Santana, Maria Inês Bruno Tavares

{"title":"Occurrence and Characterization of Microplastics in Coastal Beach Sand: Insights from a Case Study at Praia Vermelha, Brazil.","authors":"Marina S Sacramento, Elton Jorge R Rodrigues, Karoline S Santana, Maria Inês Bruno Tavares","doi":"10.1590/0001-3765202520250019","DOIUrl":"https://doi.org/10.1590/0001-3765202520250019","url":null,"abstract":"The present study aimed to establish and validate a standardized protocol for the collection, treatment, and characterization of microplastic samples found in beach sands. The methodology was implemented at Praia Vermelha/RJ, demonstrating its effectiveness in identifying and assessing microplastics originating from improper plastic waste disposal in coastal environments. The flotation method showed high efficiency in extracting microplastics, and the subsequent sample treatment, including thorough cleaning and drying processes, ensured reliable results. Through systematic sampling across multiple sections of the beach, a total of 32 microplastics were identified, with polystyrene being the predominant polymer. Optical microscopy effectively confirmed the presence of microplastics, revealing that the most common form was foam, with average sample diameters ranging from 2.1 mm to 4 mm. Fourier Infrared spectroscopy further confirmed the polymer composition, highlighting the dominance of polystyrene among the samples. This study underscores the importance of standardizing collection and analysis protocols for microplastics to enable consistent comparisons across regions and scales. Furthermore, the findings emphasize the urgent need for preventive measures and management strategies to reduce the influx of microplastics into coastal and marine ecosystems. Raising public awareness and promoting sustainable practices are critical steps toward mitigating the environmental impact of plastic pollution.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97Suppl. 3 Suppl. 3","pages":"e20250019"},"PeriodicalIF":1.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Prediction of soil fertility properties in Southern Brazil via proximal sensing. 通过近端传感预测巴西南部土壤肥力特性。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-10-03 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520250075

Stefan D Nachtigall, Marcelo Mancini, Renata A Reis, Elias Frank DE Araújo, Marco Aurélio C Carneiro, Nilton Curi, Sérgio Henrique Godinho Silva

{"title":"Prediction of soil fertility properties in Southern Brazil via proximal sensing.","authors":"Stefan D Nachtigall, Marcelo Mancini, Renata A Reis, Elias Frank DE Araújo, Marco Aurélio C Carneiro, Nilton Curi, Sérgio Henrique Godinho Silva","doi":"10.1590/0001-3765202520250075","DOIUrl":"https://doi.org/10.1590/0001-3765202520250075","url":null,"abstract":"Although proximal sensing coupled with machine learning (ML) algorithms have been successful for characterizing soils, questions remain regarding their effectiveness under varied soil conditions. This study evaluated for the first time the efficiency of a portable X-ray fluorescence spectrometer (pXRF) to predict 17 soil fertility properties in Rio Grande do Sul (RS) state, Brazil, through ML algorithms. A total of 468 surface soil samples were analyzed by pXRF and by conventional (reference) methods. Six algorithms were employed: Projection Pursuit Regression, Partial Least Squares, Random Forest, Support Vector Machine, Extreme Gradient Boosting, and Cubist. Predictions accuracy was assessed using the coefficient of determination (R²), root mean square error, normalized root mean square error, residual prediction deviation (RPD) and Ratio of Performance to Interquartile Distance. Cubist and Random Forest outperformed other algorithms, reaching the following R² values: available/exchangeable Al (R² = 0.70), Ca (0.57), Mg (0.75), Mn (0.84), S (0.60), Cu (0.81), K (0.82), P (0.54), besides P-rem (0.80), H+Al (0.73), and total N (0.52). Predictions for organic carbon and available B, Fe, Na, Zn require further investigations. The pXRF combined with ML algorithms can accelerate decisions for agricultural management in RS state, Brazil, by optimizing soil analysis for improved crop management.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97Suppl. 2 Suppl. 2","pages":"e20250075"},"PeriodicalIF":1.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249581","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

COVID-19 in Southern Brazil: Public Health Management and Regional Impacts. 巴西南部的COVID-19：公共卫生管理和区域影响。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-10-03 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241135

Alenilson S Marques, Walas Silva-Oliveira, José Rafael Bordin

{"title":"COVID-19 in Southern Brazil: Public Health Management and Regional Impacts.","authors":"Alenilson S Marques, Walas Silva-Oliveira, José Rafael Bordin","doi":"10.1590/0001-3765202520241135","DOIUrl":"https://doi.org/10.1590/0001-3765202520241135","url":null,"abstract":"The political party base in Brazil plays a fundamental role in pre serving the Democratic Rule of Law. This study empirically analyzes the relationship between the population infected by the coronavirus, weighted by the deaths in the respective municipalities of the sample. The sample consists of the 15 municipalities with the smallest and largest populations from the states of Santa Catarina (SC), Paraná (PR), and Rio Grande do Sul (RS), totaling 45 municipalities per sample and 90 southern Brazilian cities analyzed. Initially, a Normal Distribution is used for the population of the municipalities, the infected population, and deaths caused by SARS-CoV-2 to assess the political management capacity based on party affiliation (Right, Center, or Left) during the pandemic. Subsequently, a Multiple Regression Analysis is conducted to determine whether the predictor variables maintain their significance when considering the territorial, economic, and healthcare structure of municipalities with small and large populations. The results indicate favorable effects for the party base, particularly in larger municipalities. This suggests that the political leaders of these municipalities (mayors) may have influenced the population, particularly in cases where anti-isolation policies were adopted, potentially leading to collapses in the public healthcare system.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 suppl 2","pages":"e20241135"},"PeriodicalIF":1.1,"publicationDate":"2025-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145249516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparative study of the macroinvertebrate assemblages of two urban rivers of Jujuy, Argentina. 阿根廷胡胡伊两条城市河流大型无脊椎动物群落的比较研究。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-26 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520231359

Graciela Cecilia Gomez

{"title":"Comparative study of the macroinvertebrate assemblages of two urban rivers of Jujuy, Argentina.","authors":"Graciela Cecilia Gomez","doi":"10.1590/0001-3765202520231359","DOIUrl":"https://doi.org/10.1590/0001-3765202520231359","url":null,"abstract":"The present study aimed to know the structure of the assemblages of aquatic macroinvertebrates and the ecological state of two urban rivers of San Salvador de Jujuy (Jujuy province, Argentina). Sampling was performed in the Xibi Xibi and Río Grande rivers during two seasons (dry and wet) in 2021. Six sampling sites were selected (three per river). At each site, physico-chemical parameters were measured and benthic macroinvertebrates were collected. The ordering of sites according to environmental variables was studied using Principal Component Analysis (PCA). The water quality of the basin was evaluated using different biotic indices. Correlation analysis was carried out between the values of the indices and the physico-chemical parameters. NaCl, TDS (total dissolved solids) and electrical conductivity were higher in the sites corresponding to the Río Grande, while the sites sampled in the Xibi Xibi had a higher altitude. The results of the biotic indices were diverse. The IBY-4 (Yungas biotic index) and ASPT (Average score per taxon) are the most appropriate indices to monitor the water quality of the urban rivers of Jujuy.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 4","pages":"e20231359"},"PeriodicalIF":1.1,"publicationDate":"2025-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145205099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Ceylon gooseberry as an additive to improve the quality of meat patties. 锡兰醋栗作为添加剂，提高肉饼的质量。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-22 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520241359

Jessyca Caroline R Ribas, Livian Y Iwaoka, Maria Clara Q DA Silva, Paula T M Pintro

引用次数: 0

Nutritional evaluation of sorghum silage forage AGRI 002E in natura and ensiled with additives in the Tropics. 高粱青贮饲料AGRI 002E在自然条件下和添加添加剂青贮在热带地区的营养评价。

IF 1.1 4区综合性期刊

Anais da Academia Brasileira de Ciencias Pub Date : 2025-09-22 eCollection Date: 2025-01-01 DOI: 10.1590/0001-3765202520231193

Tiago Venturini, Maximiliane A Zambom, Marcela A Neres, Rodrigo Cesar R Tinini, Jessica Gabi Dessbesell, Andressa R Baungratz, Pamela Rosana Schneider, Maria Luiza Fischer, Cibele Regina Schneider, Luana Muxfeldt

{"title":"Nutritional evaluation of sorghum silage forage AGRI 002E in natura and ensiled with additives in the Tropics.","authors":"Tiago Venturini, Maximiliane A Zambom, Marcela A Neres, Rodrigo Cesar R Tinini, Jessica Gabi Dessbesell, Andressa R Baungratz, Pamela Rosana Schneider, Maria Luiza Fischer, Cibele Regina Schneider, Luana Muxfeldt","doi":"10.1590/0001-3765202520231193","DOIUrl":"https://doi.org/10.1590/0001-3765202520231193","url":null,"abstract":"This study evaluated the impact of bacterial inoculant and urea on the chemical composition of AGRI 002E forage sorghum silage over different storage periods. Four treatments were tested: control (WS), bacterial inoculant (SBI), urea (US) and both urea and bacterial inoculant (USBI), with samples evaluated after 0, 28, and 56 days of ensiling. Parameters analyzed included organic acid, soluble carbohydrates (SC), condensed tannins (CT), ammonia nitrogen (NH3-N) dry matter (DM), organic matter (OM), crude protein (CP), ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF), non-fibrous carbohydrates (NFC), lignin, <italic>in vitro</italic> digestibility (<italic>IV</italic>D), CP fractions, and total carbohydrate fractions. Results showed increased in DM, OM, total carbohydrates, NFC and digestibility over time, while CT, NDF, ADF, and SC decreased. Urea supplementation notably increased CP and <italic>IV</italic>DCP, and reduced fiber concentrations compared to the control and bacterial inoculant treatments. Silage stability was achieved after 28 days, but a 56-day period is recommended for optimal fermentation and quality. Urea alone improves digestibility and non-protein nitrogen availability, and combining it with bacterial inoculants may enhance aerobic stability.","PeriodicalId":7776,"journal":{"name":"Anais da Academia Brasileira de Ciencias","volume":"97 4","pages":"e20231193"},"PeriodicalIF":1.1,"publicationDate":"2025-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145129893","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"综合性期刊","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0