Temperament often depends on the animals’ reaction to people, social and environmental conditions. However, little is known about the influence of changes in the pasture environment on cattle temperament. Thus, this study was designed to evaluate if an animals’ temperament changes in response to being kept in a silvopastoral system. This study evaluated the effect of the tree components in a pasture environment on the temperament of any grazing cattle in integrated crop-livestock systems. A total of thirty-two Angus steers were allocated to either a livestock (L) or livestock-forest (LF) system and observed from December 2019 to February 2020. Each animal was evaluated for their reactivity score, flight speed, and number of vocalizations. The statistical model established that the animals were random effects and that the treatments and periods were fixed effects using the MIXED procedure, and the means were compared using LSMeans. The flight speed and number of vocalizations were similar in both production systems, while the reactivity score was lower for animals kept in the LF system when compared to those in the L system. This suggested that the LF system interferes positively with the animal’s temperament in relation to the L production system. However, additional research is needed to understand the influence of the production system on animal temperament.
O presente estudo objetivou avaliar a influência de bactérias promotoras do crescimento (Azospirillum brasilense) e do ácido indolbutírico (IBA) na rizogênese de miniestacas de Tibouchina fothergillae (D.C.) Cogn. Para tanto, miniestacas caulinares foram coletadas de minijardim clonal, preparadas com 6 ± 0,2 cm de comprimento e mantendo-se um par de folhas reduzidas à metade. Após a desinfestação, as bases das miniestacas foram tratadas com ácido indolbutírico (0, 1000 e 1500 mg L-1) e com solução inoculante de Azospirillum brasilense (puro e diluído 1:1), sendo os propágulos plantados em tubetes com vermiculita e mantido em casa de vegetação. Após 60 dias foram avaliadas a porcentagem de enraizamento, número de raízes por estaca, comprimento médio das 3 maiores raízes por estaca, miniestacas vivas e mortas, emissão de brotação, manutenção de folhas. e massa seca de parte aérea e raiz. Os resultados para todas as variáveis não apresentaram diferença estatística ao nível de 5% de probabilidade pelo teste de Tukey. Os resultados indicam que T. fothergillae é de fácil enraizamento, e que os tratamentos com IBA e Azospirillum brasiliense não influenciam na rizogênese da espécie.
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