Ao elaborar um manejo alimentar para vacas em lactação é necessário analisar o nível de produção, o estágio da lactação, o consumo esperado de matéria seca, o estado corporal do animal, entre outros aspectos, com a finalidade de atender as exigências nutricionais da mesma. A partir disso, é possível formular dietas para o rebanho leiteiro que irão combinar adequadamente os nutrientes de maneira a atender a demanda requerida, e estimular o potencial de produção dos animais de modo eficiente para o sistema. Entretanto, o balanceamento correto é apenas um dos componentes para um bom manejo nutricional, sendo que a mensuração de sobras é um fator importante, já que o excesso de alimento no cocho gera perdas financeiras. Com isso, o presente estudo tem como objetivo abordar as exigências nutricionais das vacas leiteiras, assim como cálculos de dieta e mensuração de sobras, pontos importantes para aumentar a lucratividade do produtor em seu sistema.

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The objective of the present study was to evaluate the effect of a vitamin and mineral complex, associated with the application of an efficient anthelmintic, in parasitized lambs, with characteristic signs of gastrointestinal nematode infection, on hematological clinical parameters of clinical improvementand weight gain. 60 lambs Australian Merino breed, with 8 and 9 months of age, were segregated in four groups: control (no supplemetation); formula 1 (Iron Dextran, Organic Phosphorus, Cyanocobalamin and Vitamin k); formula 2 (Iron Dextran, Organic Phosphorus and Cyanocobalamin); and formula 3 (Vitamin k). Hematocrit, prothrombin time, total plasma proteins, color of the conjunctiva and weight gain were analyzed. The results were submitted to analysis of variance (ANOVA) through the repeated measures test. There was no statistical difference between treatments for the variables of hematocrit (P = 0.564), prothrombin time (P = 0.911) and plasma proteins (P = 0.6), for the conjunctiva color variable there was a difference (P = 0.052 ), with greater results for the groups supplemented with Vitamin K, Butafosfan, Cyanocobalamin and Iron (groups F1 and F3), as well as those same groups reached higher body weight at D35 (P = 0.023). It can be concluded that the administration of vitamin and mineral complex, associated with efficient anthelmintic, promoted a better performance in parasitized lambs.

The aim of this study was to evaluate the effect of rumen-protected (RPM) supplementation on body temperature, as well as the relationship between skin thickness and body temperature of Nelore cows in a tropical climate. The study was carried out at the Hildegard Georgina Von Pritzelwitz Agrozootechnical Experimental Station (Fazenda Figueira), located in southern Brazil (23º34'26" S; 50º58'14" W), during the 2020/2021 breeding season. In the period from d-28, 28 days after the FTAI protocol, the animals were divided into 2 treatments: the Control Group (CG) receiving 100g/cow/day of mineral salt, and the Methionine group (MG) with the same mineral salt supplementation plus 3g RPM. Between d-9 and d-2 FTAI the body temperature was measured using a data logger coupled to the progesterone device, with assessment of vaginal temperature every 30 minutes. The skin was measured in millimeters (mm) with a cutimeter in the scapular region at the same day of pregnancy diagnosis (d28). The mean plus one standard deviation of the skin thickness was used to categorize the animals with thick skin and thin skin corresponding to (CG: 5.09% of 530 animals; GM: 5.28% of 530 animals) leaving a total of 55 animals in total, GC=27 and MG=28. Data were analyzed using Mixed Models in JMP, considering the body temperature as the random variable; group, day, quartile and their interactions with fixed effects; animals were included as a random effect. Body temperature was different between GC (38.878±0.028) and GM (38.784±0.028), P< 0.05. The interaction between group and skin category was different between GC-thin skin (38.92±0.041) and MG-thin skin (38.74±0.037; P< 0.05), the other categories showed no difference (P > 0.05). The other evaluations did not show difference (P >0.05). In conclusion, methionine was able to reduce the internal body temperature of Nelore cows at tropical temperatures, mainly in those with thin skin thickness.

Resumo-O objetivo deste trabalho é demonstrar o processo de captação de sinais corporais como expressões faciais, batimentos cardíacos e ondas cerebrais para compreender a relação dos mesmos com as emoções e a aprendizagem, durante experimentos realizados em instituições de ensino, guiados por um processo de seis passos apoiados por ferramentas tecnológicas. A metodologia é de natureza qualitativa e quantitativa. Os resultados mostram que o estado emocional dos participantes durante a realização das atividades pode ser percebido através do monitoramento dos sinais corporais, e conclui-se que, analisando o conjunto de batimentos cardíacos, métricas de performance através das ondas cerebrais e estado emocional por expressões faciais, uma mesma atividade pode produzir reações diferentes nos participantes, de acordo com a metodologia adotada e o estilo de aprendizagem de cada aluno. Com relação aos trabalhos futuros, o objetivo é expandir o número de experimentos a fim de comparar os dados, ajustar e validar o processo metodológico adotado.