Infdtration rate and sediment production were measured over a 2-year period on an intensive rotationally grazed pasture. Measurements were taken prior to the movement of livestock onto the pasture, soon after their removal, and approximately midway through the subsequent rest period of each rotation through the system. Midgrass-dominated interspaces were characterized by significantly higher ht...

A method was developed to determine the contributions of ammonia-oxidizing archaea (AOA) and ammonia-oxidizing bacteria (AOB) to the nitrification potentials (NPs) of soils taken from forest, pasture, cropped, and fallowed (19 years) lands. Soil slurries were exposed to acetylene to irreversibly inactivate ammonia monooxygenase, and upon the removal of acetylene, the recovery of nitrification p...

An integrated management system involving cattle, ewes and lambs developed to minimise levels of parasitic nematode contamination of pasture was evaluated in a 2-year (1989-1991) study. Four experimental farmlets were managed as self-containcd units over a May-May year. Over the two years, stocking rate averaged 15 su/ha and cattle:sheep ratio 35:65. Three treatments (lambs regularly drenched, ...

Increasing plant species diversity has been proposed as a means for enhancing annual pasture productivity and decreasing seasonal variability of pasture production facing more frequent drought scenarios due to climate change. Few studies have examined how botanical complexity of sown swards affects cow performance. A 2-year experiment was conducted to determine how sward botanical complexity, f...

To investigate the maternal plane of nutrition and role of Se yeast on muscle Se concentration, plasma glutathione peroxidase (Gsh-Px) activity, and colostrum Se concentration in mares and their foals, 28 Quarter Horse mares (465 to 612 kg of BW, and 6 to 19 yr of age) were used in a study with a randomized complete block design. Mares were blocked by expected foaling date and randomly assigned...

Grazing plays an important role in milk production most regions of the world. Despite importance grazing, current trends livestock farming Europe are causing a decline popularity pasture-based feeding dairy cows. This paper aims to provide overview challenges faced by pasture system under climate change. lands ecosystem services including regulation and storage water flows, nutrient cycling, C ...

A survey of internal parasites in Oklahoma swine herds indicates that most of the internal parasites common to swine are widespread in the state, although numbers are somewhat lower than those reported in surveys of states with a greater concentration of swine. A total of90 growing-finishing swine were used to study the effect of anthelmintic treatment regimes and management systems on pig perf...

Stable organic milk producer prices over the course of the 2015/2016 conventional milk price crisis in the EU suggest that product differentiation according to the preferences of buyers for ethical milk attributes could be a good marketing strategy for conventional milk. Through an online choice experiment conducted in Germany we analyse the preferences of conventional milk buyers for ethical a...

The aim of this study was to define breeding goals and determine the suitable selection index in Rayeni cashmere goat using simulated data. To select animals for increased quantity of meat, milk and cashmere produced, body weight of the doe (BWD), milk weight (MW), cashmere weight (CW), weight of kids for sale (WK) and number of kids for sale per doe (NK) was used as selection criteria. Four se...