Feed intake of sheep receiving ration with addition of passion fruit peel meal

Part of the costs of animal production is food, and consequently, several alternatives have been examined for use as co-products, such as passion fruit peel meal (PFP). The objective of this study was to evaluate the dry matter (DMI), nutrient intake, feeding behavior, and physiological parameters of sheep receiving PFP in their ration. Four mixed breed sheep were with a mean body weight of 38.4 kg and distributed in a 4 × 4 Latin square. The experimental diet was formulated with 50% corn silage and 50% concentrate (dry matter [DM] basis), to contain 16% crude protein (CP) and 70% total digestible nutrients, with the addition of PFM to the feed at 0%, 1.6%, 5.8%, and 8.9% based on DMI. The addition of PFP did not affect (P > 0.05) DMI and nutrients, with an average DMI of 838.51 g d-1, 2.21% of body weight, and 54.59 g kg-0.75. The addition of PFP to the ration did not change the feed intake of DM and nutrients. The PFP did not change the ingestive behavior of sheep during the dawn, morning, and afternoon. However, an increase in the intake time and leisure time was observed during the night. PFP did not influence any of the physiological variables; however, the high temperature during the execution of the experiment caused animal discomfort both in the morning and in the afternoon

Digestibilidade total e desempenho de bezerras lactentes da raça Holandesa com adição de própolis na dieta

The objective of the present study was to evaluate the effect of  addition of propolis based products  (LLOSA2 and LLOSC1) at two concentrations of propolis (A and C) and two alcoholic contents (1 and 2,) towards the use of lasalocid sodium (positive control) in total tract digestibility and performance of Holstein heifers fed from birth to weaning (60 days) with milk and concentrate diet (20% crude protein). It was used a completely randomized design with three treatments and ten repetitions for performance evaluation, and four replications to estimate the total tract digestibility of the diets at 5% significance level. There was no effect (P>0.05) of the tested additives on dry matter intake of heifers (1048.5 g/day), average daily weight gain (711.3 g/day) and feed conversion (1.5). Similarly, no significant difference (P>0.05) of additives was observed on the digestibility of dry matter (77.4%), crude protein (79.0%) and ether extract (96.9%). Thus, data suggest that the additives based on propolis can be used in replacement of lasalocid in Holstein heifers, as the additives based on propolis did not cause any damage to the nutrient intake, performance, feed conversion and total tract digestibility of tested diets.Objetivou-se avaliar o efeito da adição de produtos à base de própolis (LLOSA2 e LLOSC1) em duas concentrações de própolis (A e C) e dois teores alcoólicos (1 e 2) frente ao uso de lasalocida sódica (controle positivo) na digestibilidade total e desempenho de bezerras Holandês Preto e Branco alimentadas do nascimento ao desmame (60 dias) com leite e  ração concentrada (20% de proteína bruta). Utilizou-se delineamento experimental inteiramente casualizado com três aditivos e dez repetições para avaliação do desempenho; e quatro repetições para a estimativa da digestibilidade total das dietas ao nível de 5% de significância.  Não houve efeito (P>0,05) dos aditivos testados sobre o consumo de matéria seca das bezerras (1048,5 g/dia), ganho de peso médio diário (711,3 g/ dia) e para conversão alimentar (1,5). Do mesmo modo, não houve diferença significativa (P>0,05) dos aditivos sobre as digestibilidades de matéria seca (77,4%), proteína bruta (79,0%) e extrato etéreo (96,9%). Assim, os aditivos à base de própolis podem ser utilizados na substituição da lasalocida sódica em bezerras lactentes Holandês, pois os mesmos não causaram nenhum prejuízo ao consumo de nutrientes, desempenho, conversão alimentar e digestibilidade das dietas testadas

Comunidade de prática e inovação em ensino e aprendizagem CPIEA

Apresentação efetuada nas I Jornadas Centro IDEA-UMinho, em Guimarães, 201

Os Audience Response Systems como instrumento de inovação no ensino e na aprendizagem ativa: aplicações no âmbito de uma comunidade de prática e inovação em ensino e aprendizagem e perceções dos alunos

[Extrato] Introdução A atual geração de alunos universitários, nascida em finais da década de noventa e inícios do novo milénio, cresceu com a internet e as tecnologias digitais, sendo apelidados de "nativos digitais" (Anshari et al., 2017). O smartphone tornou-se indispensável no seu quotidiano, permitindo-lhes estar constantemente ligados à internet e desenvolver diversas atividades ao longo do dia, como verificar o email, navegar na web ou interagir nas redes sociais (Grinols & Rajesh, 2014).[...

Distiller’s dried grains with solubles (Zea mays L.) in feeding sheep on nitrogen balance

The objective of this study was to evaluate the effects of diets supplemented with 0.0, 8.0, 16.0, and 24.0% distiller’s dried grain solubles (DDGS) on nitrogen (N) intake, fecal and urinary N excretion, and N absorption and retention (N balance, NB) by feeding sheep. Four sheep of unidentified race were used, with an average body weight of 23.5 ± 1.5 kg, and housed in metabolism cages. We used a 4 × 4 Latin square design for the experimental design, and each experimental period lasted for 20 days. Data on N intake (NI), fecal N, urinary N, absorbed N, and NB were expressed in g day-1; percentage of NI and grams per kilogram of metabolic weight g (kg0.75)-1 were subjected to analysis of variance (ANOVA) and regression analysis at 5% probability. Inclusion of the different concentrations of DDGS in sheep diets had no effect on NI (mean of 15.11 g animal-1 day-1), nor on fecal and urinary N excretion (mean of 5.16 and 0.16 g animal-1 day-1, respectively). Moreover, DDGS supplementation did not alter NB or N absorption (mean of 9.79 and 9.95 g animal-1 day-1, respectively). Thus, it can be concluded that inclusion of up to 24% of DDGS in feed does not affect NI, fecal and urinary N excretion, and NB in sheep

Effect of slow release urea in sheep feed on nitrogen balance

The aim of this study was to evaluate the effect of inclusion of 0.0%, 0.4%, 0.8%, and 1.2% slow release urea (SRU) in sheep feed on nitrogen balance (intake, fecal and urinary excretion, nitrogen absorbed and retained and/or nitrogen balance). Four sheep with an average body weight (BW) of 30.8 ± 1.7 kg were distributed using a Latin square experimental design. Sheep were allocated in metabolic cages and received two meals a day. The data were subjected to analysis of variance and differences were tested using a regression equation with a 5% probability. The inclusion of 0.0%, 0.4%, 0.8%, and 1.2% SRU in sheep diets did not change (p > 0.05) nitrogen intake (NI), with an average value of 20.49 g animal day-1 and 1.57 g (kg0.75)-1. The inclusion of 0.0%, 0.4%, 0.8%, and 1.2% SRU in sheep diets did not affect (p > 0.05) fecal nitrogen (FN) in g (kg0.75)-1, with an average value of 0.65 g (kg0.75)-1. However, the inclusion of SRU changed (p 0.05) the NB expressed as g animal day-1 (10.86) and g (kg0.75)-1 (0.82). However, the NB expressed as % NI or in relation to the NI responded in a quadratic manner (p < 0.05) to the inclusion of different levels of SRU in sheep food. The maximum value for NB was 59.68% NI and it was obtained at 0.68% SRU. Thus, the inclusion of 0.6% to 0.8% slow release urea in sheep diets provides the lowest fecal and urinary nitrogen losses. In addition, these levels provide the best NB values, expressed as a percentage of NI