abstract the addition of manures and chemical fertilizers as soil amendments for the improvement of soil fertility and quality could affect the seasonal changes in the activity of soil microbes and enzymes. this study aimed at investigating the effect of different levels of nitrogen from broiler litter and urea sources on the trend of urease, alkaline phosphatase and saccharase activities in a ...

We examined the effect of dried distillers grains with solubles (DDGS) in diets for late gestating sows on sow and litter performance, colostrum chemical composition, behavior. Sixty 3.77±1.65 parity were divided into three groups 20 animals, a randomized block design 0 (corn-soybean meal diet), 150, or 300 g kg−1 DDGS from 84 days gestation until farrowing. Sows fed presented lower frequency s...

A visual census of marine litter on the seafloor of the Saronikos Gulf (Greece) is presented in the current work. The abundance and qualitative composition of benthic marine litter were investigated in two selected locations of the Saronikos Gulf with a Remote Operated Vehicle, where other sampling strategies couldn't be implemented. The assessment of marine litter was combined with environment...

We quantified the effect of overstory species composition on forest floor dynamics in lowland Costa Rica. Aboveground litter production and forest floor mass were measured over 1 year in 16-year-old single-species plantations established in a randomized complete block design with four blocks. The tree species investigated (=experimental treatments) were Hyeronima alchorneoides, Pentaclethra mac...

The intensive increase in the number of meat poultry, directly broiler chickens both our country and most countries world, is accompanied by accumulation a large amount waste (droppings with litter) this technology limited areas. According to researchers, utilization biomass must take into account environmental requirements challenges. These are met poultry droppings means vermiculture (growing...

an experiment was conducted to evaluate the effect of chemical amendments and reused litter on broiler performances, immune response and skin quality. five hundred and seventy six (576) day old broiler chickens were randomly allocated to 3x2 factorial design experiment. three amendments treatment included control (no chemical addition), alunminum sulfate and zeolite; two types of litter were ne...

Cattle manure and poultry litter are widely used as fertilizers they excellent sources of nutrients; however, potential adverse environmental effects exist during land applications, due to the release zoonotic bacteria antimicrobial resistance (AMR) genes. This study was conducted understand linkages between physiochemical composition, bacterial diversity, AMR gene presence cattle using quantit...

1. Understanding relationships between resource and consumer diversity is essential to predicting how changes in resource diversity might affect several trophic levels and overall ecosystem functioning. 2. We tested for the effects of leaf litter species diversity (i.e. litter mixing) on litter mass remaining and macroinvertebrate communities (taxon diversity, abundance and biomass) during brea...

The chemical complexity of decomposing plant litter is a central feature shaping the terrestrial carbon (C) cycle, but explanations of the origin of this complexity remain contentious. Here, we ask: How does litter chemistry change during decomposition, and what roles do decomposers play in these changes? During a long-term (730 days) litter decomposition experiment, we tracked concurrent chang...

Although we understand the ecological processes eliciting changes in plant community composition during secondary succession, we do not understand whether co-occurring changes in plant detritus shape saprotrophic microbial communities in soil. In this study, we investigated soil microbial composition and function across an old-field chronosequence ranging from 16 to 86 years following agricultu...