Male calves are not economically attractive for most dairy farms in the current system and therefore considered surplus industry. The issue has gained growing attention many countries, due to economic animal welfare implications. It is known that livestock extensionists play a crucial role facilitating change promoting sustainable practices among farming community. This study aimed investigate knowledge attitudes of Brazilian extensionist regarding three potential solutions male calves: use...

Phenolic compounds are widely present in forage. However, few studies have been carried out to investigate the presence of these animal products such as milk. In this study, total phenolic content (TPC) and ferric reducing-antioxidant power (FRAP) milk produced under agroecological conventional management systems southern Brazil were determined. Three compared: (a) agroecological, with intensive rotational grazing, also known Voisin grazing (ECO); (b) semi-intensive (SIC); (c) (CGR) (n = 8...

Smallholder dairy farmers that are responsible for 90% of the milk produced in Santa Catarina State, southern Brazil, transitioned recent decades from production self-consumption to commercial dairying. The objective this study was identify groups sharing common characteristics, potentials and limitations compare their main management practices, quality. We collected data 124 farms distributed 24 municipalities, using semi-structured interviews, inspection housing milking environment, live...

A significant share of Greenhouse Gases (GHG) produced from agriculture comes cattle farming. The reduction in GHG emissions ruminants fed with grains has led some researchers to recommend such a diet as means mitigating the sector. more accurate balance emissions, however, must include carbon (C) stocked by feed crops. Within grain production system, no-tillage (NT) cultivation systems have greater capacity increase and store soil organic (SOC). grazing management systems, rotation used...

This study describes the development of propolis nanoparticles (PNP) to treat bovine mastitis. Three PNP prepared with varying concentrations (5% and 7%, w/v) surfactants [poloxamer (1%, 3%, 4%, soy lecithin (0.25%, 0.7%, 1%, w/v)]. were characterized according their size, polydispersity, zeta potential, pH, morphology, physical stability. evaluated for in vitro antimicrobial cytotoxic effects. obtained spherical a monodisperse distribution (polydispersity index < 0.2) an average particle...

Summary Solitary Tinamou Tinamus solitarius is a threatened Brazilian bird, and very little known about its ecology behaviour. In this study we aimed to verify the use of habitats in different stages plant succession circadian activity pattern species. The was conducted Santa Catarina state (27º43’S, 48º49’W). Six camera traps were used record species three areas successional during 12-month period. Traps remained at each sample site for two months, after which they moved new site, minimum...

The objective of this study was to investigate the effects different trough types on water consumption and drinking behaviour pasture-based beef heifers. Two trials were implemented with 32 heifers test two troughs, namely a rectangular concrete (RC) round polyvinyl chloride tank (PVC). In Trial 1, both troughs simultaneously available groups four animals within eight paddocks. 2, distributed in pairs throughout 16 paddocks and, crossover design, exposed one type at time. trials, estimated...

Social hierarchy affects the access of animals to feed resources. On daily rotational pasture systems, supplementation time may influence feeding behavior. This trial was designed test effect grain delivery on behavior heifers. Heifers divided into two groups according breed (n = 15 Braford and n 19 Jersey) were tested in a crossover design with treatments: INITIAL-supplement at 8 am (entry fresh paddock), MIDDLE-supplement 4 pm (middle paddock use). Animals entered new every morning,...

Avoiding grazing near feces is an efficient strategy to prevent parasitic infection and contamination; therefore, in the evolution of herbivorous species, this behavior may have developed as a mechanism protect host against by gastrointestinal nematodes. The aim study was assess whether distance from dung related level cattle. Based on Fecal Egg Count (FEC) means, 18 castrated male steers, aged months, were divided into three groups: High (FEC ≥ 315); Medium = 130–160); Low 40–70). To...

RESUMO: A Avaliação do Ciclo de Vida (ACV) é uma ferramenta capaz estimar o potencial emissões e apontar as fases críticas um determinado produto ou processo em todo seu ciclo vida. O objetivo deste trabalho foi resumir os principais resultados das pesquisas estudos caso ACV relacionados à bovinocultura leiteira nacional internacional, 2008 a 2014, realizar análise crítica categorias impacto abordadas com maior frequência pela literatura: mudança climática, acidificação, eutrofização, uso da...

Age at weaning affects the behaviour of piglets weaned in conventional confined environments. The adaptation to this event, which exposes important stressors, has not been examined detail outdoor systems. aim study was compare 3 or 4 weeks age an production system. Six replicates four born and raised outdoors, originated from different litters but previously acquainted, were approximately 20 (D20) 30 (D30) days 36 m2 pens offered high-quality diets. Their recorded by direct visual...