Results 11 to 20 of about 3,422 (113)

Contrasting Embryogenic Trajectories Reveal Spatial Control as a Key Determinant of Embryogenic Competence in Theobroma cacao L. [PDF]

open access: yesPhysiol Plant
ABSTRACT Somatic embryogenesis (SE) in Theobroma cacao is a micropropagation technique of great importance but remains constrained by genotype recalcitrance. The cellular and molecular mechanisms distinguishing regenerative from non‐regenerative responses remain poorly understood.
Alzate-Lozano S   +4 more
europepmc   +2 more sources

Effect of composting on bacterial communities in poultry litter generated using conventional and organic production systems. [PDF]

open access: yesJ Environ Qual
Abstract Poultry production generates substantial quantities of poultry litter, which can be applied to agricultural soils as organic fertilizer. Although this production system is sustainable, it can increase the microbial numbers and change ecological interactions and trophic networks in the soil.
Bertholoto DM   +8 more
europepmc   +2 more sources

Mudanças climáticas e suas relações com o uso da terra no município de Alta Floresta - Amazônia Meridional Brasileira

open access: yesBiodiversidade Brasileira, 2021
A brusca ocupação do norte de Mato Grosso levou à transformação de grandes áreas de transição Cerrado-Amazônia numa das mais importantes regiões de produção agrícola e pecuária do Brasil.
Katiane da Silva Santos   +2 more
doaj   +1 more source

Somatic cell count in the diagnosis of subclinical mastitis in sheep of different breeds

open access: yesSemina: Ciências Agrárias, 2018
The aims of this study were to determine the occurrence of subclinical mastitis in sheep of different breeds and the values for somatic cell count (SCC) in milk for the diagnosis of the disease at lactation and weaning, a fundamental prerequisite for ...
Luiz Francisco Zafalon   +3 more
doaj   +1 more source

Distribuição de anticorpos para herpesvírus bovino 1 em rebanhos bovinos

open access: yesArquivo Brasileiro de Medicina Veterinária e Zootecnia, 2002
A distribuição de anticorpos neutralizantes para o herpesvirus bovino 1 (HVB 1) foi estudada em quatro faixas etárias de bovinos, em 21 rebanhos de leite e de corte.
C.B. Melo   +5 more
doaj   +1 more source

Land Degradation, Cultural Ecosystem Services, and Ecosystem Disservices in the Sumapaz Páramo, Colombia: An Integrated Socioecological Assessment

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Understanding the relationships among land degradation, ecosystem functioning and human well‐being is essential for conserving tropical high‐mountain ecosystems. This study examined the relationships among land degradation, Cultural Ecosystem Services (CES), ecosystem disservices (EDS) and visitor perceptions at Laguna Colorados in the Sumapaz
Victor Fabian Forero Ausique   +4 more
wiley   +1 more source

Beyond forests: Harnessing conservation gardening for open biomes in Brazil

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Urban gardening offers an innovative conservation strategy by integrating native ornamental species into urban landscapes. We evaluated the ornamental potential of the Brazilian flora by comparing the representation of species from forests versus open biomes (focusing on campo rupestre grasslands) and introduced and validated the Index of Ornamental ...
Flávia Santos Faria   +2 more
wiley   +1 more source

Network analysis uncovers putative genes affecting resistance to tick infestation in Braford cattle skin

open access: yesBMC Genomics, 2019
Background Genetic resistance in cattle is considered a suitable way to control tick burden and its consequent losses for livestock production. Exploring tick-resistant (R) and tick-susceptible (S) hosts, we investigated the genetic mechanisms underlying
Daniela D. Moré   +8 more
doaj   +1 more source

ACETATO DE TRIANCINOLONA COMO PRÉ-INDUTOR DO PARTO DE RECEPTORAS DE EMBRIÃO NELORE PRODUZIDOS IN VITRO

open access: yesCiência Animal Brasileira, 2009
Este estudo teve como objetivo avaliar o efeito de diferentes doses e momentos da gestação para a administração do acetato de triancinolona (TRI) na pré-indução de partos. Utilizaram-se como modelo experimental receptoras de embriôes Nelore produzidos in
Luiz Fabiano Coelho de Rezende   +5 more
doaj   +1 more source

Peridomestic infestation by Triatoma pallidipennis and natural infection with Trypanosoma cruzi in Zacatepec, Morelos, Mexico Infestación peridoméstica por Triatoma pallidipennis e infección natural por Trypanosoma cruzi en Zacatepec, Morelos, México

open access: yesMedical and Veterinary Entomology, EarlyView.
Entomological and community‐related risk factors for Chagas disease were assessed through peridomestic sampling, calculation of entomological indices and surveys of community knowledge, attitudes and practices. Forty‐six triatomines, all identified as Triatoma pallidipennis, were collected, and all specimens showed natural infection with Trypanosoma ...
Reyna Vargas‐Abasolo   +5 more
wiley   +1 more source

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