Suchergebnisse

Atualmente diversos estudos tem relatado o declínio dos inúmeros polinizadores, principalmente o das abelhas, que são responsáveis pela polinização de aproximadamente 85% das espécies florais existentes no meio ambiente. Dessa forma, objetivou-se com o projeto do Meliponário da UNIMONTES, com intuito de subsidiar a disciplina optativa do curso de Zootecnia – "Criação de Meliponíneos", complementar as práticas da disciplina de Apicultura e como trabalho de Educação Ambiental para alunos do ensino médio e fundamental. O projeto foi desenvolvido na Universidade Estadual de Montes Claros em 2015, tomando forma com o decorrer dos anos, atualmente o mesmo conta com 15 (quinze) caixas, sendo que destas, 15 (quinze) espécies de Jatais, 3 (três) Irais e 2 (duas) Tubunas, e um hotel para abelhas solitárias e várias cavidades ocas (troncos e bambus furados) para a nidificação de espécies solitárias. Os visitantes e alunos ao visitarem o local, conseguem identificar e comparar espécies comuns da região, além de terem informações sobre os benefícios que as mesmas desempenham no ecossistema e informações sobre os seus hábitos de nidificação. No entanto, atividades ainda estão sendo realizadas para a melhoria e desenvolvimento do meliponário, tendo como objetivo deixar o ambiente mais arborizado, ficando o mais próximo dos locais nidificados pelas abelhas e confortável para os visitantes.

Red-fleshed pitaya is an attractive fruit not due only to the color of its flesh and skin, but also the scaly shape of its skin. In addition to being a source of vitamins and minerals, it has high commercial value and represents an alternative for cultivation in semiarid regions. Information about the post-harvest physiology of pitaya, which interferes with its ripening, allows the adoption of preservation and quality-maintenance practices. This study examines the respiratory activity and post harvest alterations of pitaya picked in the commercially immature stage of ripeness, by comparing them with fruits picked fully ripe. Physical and chemical aspects of the fruits were evaluated in two harvests, in 2019 and 2020. Six days after harvest, there was an increase in respiratory activity and a change in color in both ripe and commercially immature fruits. Therefore, pitayas picked commercially immature in both harvests had an increase in respiratory activity post-harvest, with a change in skin color during storage; and six days after harvest, in the 2019 harvest, the fruits resembled those that ripened on the plant, without having their quality compromised. However, in the 2020 harvest, six days after harvest, the fruits picked fully ripe showed soluble solids/titratable acidity ratio, betacyanins and ascorbic acid contents similar to those measured in the commercially immature fruits.

This study aimed to evaluate the effects of includingsun-dried banana peel in diets for F1 Holstein x Zebu cows on intake, digestibility and milk production. Diets were composed of 0, 15, 30, 45 and 60% replacement of sorghum silage with banana peel provided to 10 cows in two simultaneous 5 x 5 Latin squares, with the experiment divided into five periods of 16 days. The dry matter intake showed a quadratic effect with maximum level at 38.30% substitution as well as intake of crude protein expressed in kg-1 day and percentage of body weight, with maximum at the levels of 50.09 and 45.69% inclusion of the peel, respectively. The intake of neutral detergent fiber and the digestibility of neutral detergent fiber and crude protein showed a decreasing linear effect. Variation in weight and body condition score, milk production and feed conversion were not affected. The replacement of 60% sorghum silage with banana peel represents a viable alternative as it causes no change in cows with average production of 16.49 kg milk with 3.5% fat day-1, reducing feeding costs.