https://ri.ufs.br/jspui/handle/riufs/101 Fri, 25 Sep 2026 21:03:19 GMT 2026-09-25T21:03:19Z https://ri.ufs.br/jspui/handle/riufs/26080 Título: Modelagem da dependência espacial do índice de erosividade das chuvas no semiárido brasileiro Autor(es): Almeida, André Quintão de; Souza, Rodolfo Marcondes Silva; Loureiro, Diego Campana; Pereira, Donizete dos Reis; Cruz, Marcus Aurélio Soares; Vieira, Jodnes Sobreira Abstract: The objective of this work was to model the spatial dependence and to map the rainfall erosivity index (EI30) in the semiarid region of Brazil. Registers of monthly erosivity from 210 rainfall stations were used, with daily time series equal to or greater than 15 years. Based on the values of the EI30, a spatial dependence model was made by adjusting the semivariogram. From the semivariogram models, erosivity isoline maps were generated with a kriging interpolator. According to the historical data series, the maximum monthly average value of the EI30 was observed in March, and the annual value ranged from 1,439 to 5,864 MJ mm ha-1 per year, classified as low and moderate, respectively. The highest EI30 values were obtained in the northern and southern extremes of the semiarid region. Average spatial dependence was observed for rainfall erosivity, in most months, especially with the spherical semivariogram model. The range of erosivity varied from 62 to 1,508 km for the monthly EI30 and was of approximately 1,046 km for the annual one. The applied model, with the validation of the semivariograms using the jackknife test, allows the spatialization of the EI30 for the semiarid region of Brazil. Thu, 01 Jun 2017 00:00:00 GMT https://ri.ufs.br/jspui/handle/riufs/26080 2017-06-01T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/25993 Título: Heat stress induces expression of HSP genes in genetically divergent chickens Autor(es): Cedraz, Haniel; Gromboni, Juliana Gracielle Gonzaga; Garcia Junior, Antonio Amandio Pinto; Farias Filho, Ronaldo Vasconcelos; Souza, Teillor Machado; Oliveira, Eduardo Ribeiro de; Oliveira, Elizangela Bonfim de; Nascimento, Carlos Souza do; Meneghetti, Camila; Wenceslau, Amauri Arias Sun, 01 Jan 2017 00:00:00 GMT https://ri.ufs.br/jspui/handle/riufs/25993 2017-01-01T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/25873 Título: Productive characteristics of the grass Digitaria umfolozi subjected to defoliation frequencies Autor(es): Araujo, Helber Rodrigues; Rangel, José Henrique de Albuquerque; Fagundes, Jailson Lara; Muniz, Evandro Neves; Santos, Daniel de Oliveira; Santana Neto, José Adelson; Castro Filho, Edivilson Silva; Santos, Gladston Rafael de Arruda Abstract: Foi realizado um experimento com o objetivo de avaliar a produção de matéria seca, disponibilidade total de massa seca, taxa de acúmulo diária de matéria seca, interceptação luminosa, índice de área foliar, taxa de acúmulo diário e disponibilidade de matéria seca dos componentes morfológicos (lâmina foliar, colmo+bainha e material morto), relação lâmina/colmo, proteína bruta, fibra em detergente neutro e fibra em detergente ácido do capim Faixa-Branca submetido a sete frequências de desfolhação (14, 21, 28, 35, 42, 49, 56 dias). As frequências mais longas de desfolhação reduziram os percentuais de lâmina foliar e aumentaram colmo+bainha. A frequência de desfolhação influenciou positivamente a disponibilidade de lâmina foliar, colmo+bainha, material morto e matéria seca total. No intervalo de 42 dias de defoliation o capim faixa branca atingiu 95% de interceptação luminosa. Nas frequências de 14 e 21 dias de desfolhação os teores de proteína bruta das folhas foram acima de 20%.Verificou-se que a maior eficiência de utilização do capim Faixa-Branca é alcançada quando a forrageira é manejada com intervalos de corte de 40 a 46 dias. As maiores frequências de desfolhação contribui positivamente para o aumento do número de folhas totais do capim Faixa-Branca e apresentam maiores teores de proteína bruta das lâminas foliares e colmo+bainha. Wed, 01 Feb 2017 00:00:00 GMT https://ri.ufs.br/jspui/handle/riufs/25873 2017-02-01T00:00:00Z https://ri.ufs.br/jspui/handle/riufs/25624 Título: Casca de banana em dietas para vacas mestiças em lactação Autor(es): Souza, Criszoel Ferreira; Rocha Junior, Vicente Ribeiro; Reis, Sidnei Tavares dos; Antunes, Cláudia Ribeiro; Rigueira, João Paulo Sampaio; Sales, Eleuza Clarete Junqueira de; Soares, Camila; Souza, Guilherme Reis Abstract: The study purpose was to evaluate the intake, digestibility, ingestive behavior and milk production of F1 Holstein x Zebu cows fed with diets containing dried banana peel in the sun with or without addition of chemical agents during the drying process. We used two Latin squares 4 x 4, composed of four diets, four animals and four experimental periods. The diets were formulated to be isonitrogenious with forage to concentrate ratio of 75: 25. Treatments consisted of 20% inclusion of dried banana peel with or without addition of 2% of limestone or 2% of calcium oxide, replacing the sorghum silage, apart from free banana peel diet. Were used eight cows with 80 ± 10 days in milk at the beginning of the experiment, which lasted 72 days, divided into four periods of 18 days with 14 days for diet adaptation and four days of sampling and data collection. The banana peel with calcium oxide decreases rumination time, the total chewing time and the number amounts ruminated per day. However, it didn’t change the feed and rumination efficiencies of DM and NDF. The utilization of dried banana peel in the sun in 20% of the diet doesn’t alter milk yield, with average production of 16.88 kg of milk with 3.5% of fat.day-1. However, reduces DM and nutrients digestibility, which may limit the weight gain of the animals. The use of additives in banana skin drying does not improve the consumption and production of milk. Tue, 01 Mar 2016 00:00:00 GMT https://ri.ufs.br/jspui/handle/riufs/25624 2016-03-01T00:00:00Z