Publicações - ciências agrárias
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MIRANDA LIMA DE LIMA, GABRIEL;
SEBASTIÃO BRAGA GOMES, NEI;
AUGUSTO DA CUNHA, THIAGO;
Afonso Figueiredo Filho
Palavra-chave:
Pearson correlation;
Diameter increment;
Periodic increment
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Manejo Florestal; Dendrometria e Inventário Florestal
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This study compares the impact of five meteorological variables on the diametric growth of Pinus caribaea var. hondurensis Barrett & Golfari in Vilhena, Rondônia. One thousand nine hundred sixty-eight trees were evaluated and classified at different ages: 600 trees were one year old; 600 trees were two years old; 768 trees were 13 years. The diameter measurement at the soil level (SL) was conducted in young stands between one and two years old. In the stand with 13 years old, the diameter was measured at 1.3 m (DCH). Using a Pressler borer, 50 increment cores were removed at DCH to measure the tree rings in LINTAB™ 6. The diametric growth was evaluated through the Periodic Increment (PI) for young stands and Current Annual Increment (CAI) for adult stands. The following variables were considered: average temperature (°C), precipitation (mm), solar radiation (Kj m-²), real evapotranspiration (mm), and maximum relative humidity (%). The Pearson Correlation Coefficient (r) proposed by Callegari-Jacques and the coefficient of variation (CV%) were used to establish the relationship between growth and meteorological variables. For young stands, the variables with higher positive correlation were real evapotranspiration and maximum relative humidity. However, the variable with a higher positive correlation in adult stands was average temperature, demonstrating a strong correlation until the sixth year of the species.
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Marina da Silveira Gomes;
Afonso Figueiredo Filho;
RETSLAFF, FABIANE APARECIDA DE SOUZA;
LANSSANOVA, LUCIANO RODRIGO
Palavra-chave:
razão de movimentos;
manejo floresta nativa;
Estratificação da floresta;
Projeção da estrutura diamétrica
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Manejo Florestal; Dendrometria e Inventário Florestal;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Mensuração Florestal
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CIPRIANO, ROGER;
TOMAZZOLI, MAÍRA MACIEL;
TOFANELLI, MAURO BRASIL DIAS;
SANTOS, BRUNO FRANCISCO SANT?ANNA;
RIBAS, KATIA CHRISTINA ZUFFELLATO;
Cícero Deschamps
Palavra-chave:
eugenia uniflora;
Estaquia
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Antonio Ostrensky Neto;
HORODESKY, ALINE;
PONT, GIORGI DAL;
COZER, NATHIELI;
CASTILHO-WESTPHAL, GISELA G.
Palavra-chave:
Ostras;
cultivo de ostras;
Ostreicultura;
epibiontes;
Aquicultura
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Aqüicultura;
CIENCIAS_AGRARIAS; Recursos Pesqueiros e Engenharia de Pesca; Aqüicultura; Ostreicultura
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Abstract Due to the competition for food, space, oxygen and due to their role as diseases...
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SALAS, JORGE MARIO CHÁVEZ;
TETTO, ALEXANDRE;
REYNEL, CARLOS;
Nilton José Sousa
Palavra-chave:
Governança;
sustentabilidade;
Área Protegida;
turismo sustentável
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Tecnologia de Alimentos;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Conservação da Natureza; Recuperação de Areas Degradadas
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(es)
The objective of this research was to evaluate the management of tourism in the Bosque de Pómac Historic Sanctuary, in the region of Lambayeque, Peru, by developing a methodology using criteria and variables related to the sustainability of the protected natural area and the activity. Although several methodologies can be used to evaluate the general management of natural protected areas, this study focuses exclusively on tourism-related activities in one specific area. To develop the methodology, international documents related to tourism, nature, and culture were reviewed, and six criteria were obtained to evaluate the progress of tourism management in natural protected areas: Management Governance, Heritage Conservation, Identity and Authenticity, Equity and Inclusion, Marketing and Commercialization, and Visitor Experience. Subsequently, fifty-six variables were determined to be evaluated within the six criteria. A numerical evaluation matrix was designed in order to be applied to the criteria and variables with four rating levels; semi-structured interviews were conducted with twenty-five specialists in the area of tourism and natural protected areas (businesspeople, academics, consultants, public officials, as well as local entrepreneurs) linked to the protected area, and information was obtained from technical reports and field inspections. Using the scores, it was determined that the sanctuary has positively developed the criteria of Governance, Conservation, and Visitor Experience, while the issues related to Cultural Identity and Authenticity, as well as Inclusion and Equity, still need to be improved. Keywords: governance, sustainability, protected areas, sustainable tourism.
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GOMES VERNASCHI, LORENA CARLA;
VALOTTO, ALTAIR ANTÔNIO;
EL FARO ZADRA, LENIRA;
Rodrigo de Almeida Teixeira;
Laila Talarico Dias Teixeira
Palavra-chave:
age at first calving;
Dairy cow;
Longevity;
Milk Yield;
productive lifespan;
voluntary culling
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Zootecnia; Genética e Melhoramento dos Animais Domésticos
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Context Length of productive life is defined as the number of days from first calving to the last day of milking records, when the cow is no longer sufficiently productive. Although it has economic implications, length of productive life has not yet been included in Brazilian dairy cattle breeding programs because it depends on other traits such as age at first calving, milk production level and disease occurrence. In addition, its evaluation occurs later in life, and heritability coefficients are low.Aims The aim of this study was to identify the effects of both age at first calving and accumulated 305-day milk yield in the first lactation on length of productive life in Holstein cows.Methods Official dairy control data of 31562 Holstein cows, calved from 2010 to 2014, in 321 herds from Paraná state, Brazil, were analysed by using the Kaplan–Meier estimator and Cox regression model.Key results First calving at<21months was associated with shortest productive life (1197.01±232.40days), whereas first calving at 24months was associated with the lowest hazard ratio (0.572), suggesting that this is the most suitable age of first calving for a longer productive life. Low-yielding cows (first lactation yield<6392kg) had the second lowest survival probability (47.20%), the shortest productive life (1150.60±234.51days) and the highest voluntary hazard ratio (1.30) and were prematurely culled from the herds. High-yielding cows (first lactation yield >12024kg) had lower culling risk at the first lactation.Conclusions Cows that started their reproductive life ∼16months of age (first calving at 24months) had the longest productive life and an average first lactation milk yield ∼9000kg.Implications Reproductive management practices could affect length of productive life through effects on age at first calving and first lactation milk yield. Most of the Holstein semen used in Brazil comes from countries where longevity has already been included in selection indexes; thus, early identification of cow longevity could be used for culling decisions.
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OJEDA-ROBERTOS, NADIA F.;
PERALTA-TORRES, JORGE A.;
PARRA-BRACAMONTE, GASPAR M.;
CRUZ-GONZÁLEZ, ALBA R.;
LUNA-PALOMERA, CARLOS;
ULÍN-YZQUIERDO, CRUZ;
PIRES, LUCIANA A.;
Marcelo Beltrão Molento
Palavra-chave:
Livestock;
trematoda;
infection risk;
Epidemiology;
liver fluke
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COELHO, MEG;
PEDRAZZANI, AS;
QUINTILIANO, MH;
BOLFE, F;
Carla Forte Maiolino Molento
Palavra-chave:
animal welfare;
asphyxiation;
electronarcosis;
live chilling;
Nile tilapia
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Bem-estar animal
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Kendra Zamproni;
FERREIRA, HEITOR RENAN;
Antonio Carlos Batista;
DANIELA BIONDI;
Angeline Martini
Palavra-chave:
road landscaping;
wildland urban interface;
forest fires
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Conservação da Natureza; Controle de incêndios florestais;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Fisiologia Florestal;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Conservação da Natureza; Recuperação de Areas Degradadas
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MAGRI, EDERLAN;
BARBOSA, JULIERME ZIMMER;
PRIOR, STEPHEN A.;
VALDUGA, ALICE TERESA;
Motta, Antonio Carlos Vargas
Palavra-chave:
erva-mate;
micronutrientes;
resíduos
Áreas do conhecimento:
CIENCIAS_AGRARIAS; Agronomia; Ciência do Solo; Nutrição Mineral de Plantas;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Solos Florestais;
CIENCIAS_AGRARIAS; Recursos Florestais e Engenharia Florestal; Silvicultura; Nutrição Florestal
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