Education in Brazil faces some difficulties, and these are reflected in the results of internal and external evaluations. These results show the difficulties that students have in learning and understanding the contents of chemistry. The objective of this work is to carry out an analysis of the difficulties reported by students in the 3rd year of high school in a regular public school, located in Pecém (municip...
The experiment was conducted to evaluate the effects of particle size of the limestone and the use of artificial light on feeding behavior, performance, egg quality and bone of laying hens. A total of 300 Hisex White hens at 18 weeks of age, distributed in a completely randomized design in factorial 5 x 2, with 5 replicates of 6 birds. The factors studied were 5 granulometries obtained by increasing the proport...