The aim of this study was to evaluate the inclusion of different levels of soybean meal in pirarucu’s diet. 200 pirarucu juveniles (152.15 ± 0.8 g) were distributed in 20 polyethylene tanks with a continuous water flow system. A completely randomized experimental design was used, with five treatments (n = 4) containing 0, 10, 20, 30 and 40% of soyb...
A alimentação do nortista é principalmente à base de peixes nativos da região, sendo o tambaqui a espécie mais consumida, especialmente em Manaus, onde se encontra o centro consumidor de maior importância. Os gastos com o fornecimento de ração constituem o principal custo na produção, portanto o objetivo do trabalho foi avaliar a ração confeccionad...
This study aimed to assess the impact of adding forage cactus as an additive to the production of corn silage without the cob on the performance of feedlot sheep and subsequent silage losses. The experimental design was completely randomized, consisting of three treatments: corn silage without cob; 0% = 100% corn plant without the cob; 10% = 90% co...
O objetivo deste trabalho foi avaliar a eficiência do uso de bolotas compostas por ração (R) e bolotas compostas por ração com peixe moído (RP, proporção 2:1) sobre o desempenho zootécnico, parâmetros bioquímicos do sangue e intensidade da coloração vermelha (IC) de reprodutores de pirarucu. Oito casais (20,7 ± 2,7 kg) foram distribuídos em oito vi...
Abstract: The purpose was to evaluate structural characteristics of pasture, behavioral aspects and physiological parameters of sheep finished on irrigated Tamani grass pasture under continuous stocking, using castor bean cake as alternative input. Structural characteristics of the pasture were assessed in a randomized block design in 2 x 2 factori...
The aim was to evaluate the chemical composition, carbohydrates, protein fractionation and in vitro gas production of silages composed of spineless cactus and tropical forages and their effect on sheep performance. Treatments consisted of silages: corn silage (CS), spineless cactus silage (SCS), spineless cactus + gliricidia (SCG), spineless cactus...
RESUMO: A análise dos custos de produção nas atividades agropecuárias é essencial para otimizar recursos, aumentar a eficácia e assegurar a sustentabilidade. Este estudo investiga os custos de produção na avicultura, 2RevistaContemporânea, v. 4, n. 3, 2024. ISSN 2447-0961piscicultura e suinocultura em municípios e regiões selecionadas do Paraná, um...
Adequate feeding protocols are extremely important for the technical and economic feasibility of fish production systems. Two feeding rates, 3% and 4% body weight per day (3%BW and 4%BW), and two feeding frequencies, twice and three times a day, were tested during 84 days at the initial grow-out phase of tambaqui (94.5 ± 6.4 g) in earthen ponds. No...
Cactus pear is used in large proportions in diets for small ruminants in semiarid regions. However, its exclusive use is not recommended due to the low fiber and crude protein content and the high water and mineral content, leading to metabolic disorders, low dry matter intake, and weight loss. The use of mixed cactus silage associated with protein...
The research investigated the effect of dietary supplementation with Artemia sp. enriched with the autochthonous probiotic Enterococcus faecium on growth performance, microbiota modulation, intestinal morphology, and resistance to pathogenic bacteria of Megaleporinus macrocephalus larvae. The study evaluated four treatments (C: without probiotics; ...
