نتایج جستجو برای: grazing behavior
تعداد نتایج: 633539 فیلتر نتایج به سال:
Abstract The objective of this study was to evaluate the grazing behavior mature beef cows natural grassland in silvopastoral systems (SPS) comparison with pasture full sun (FS) during austral summer South America. A total fifty-five Braford crossbred multiparous suckled (352 ± 43 kg) were randomly assigned two treatments, replicates, a complete randomized design: SPS (n=28) and FS (n=27). Glob...
Prairie dogs can reduce the carrying capacity on rangelands by up to 50% through direct consumption of vegetation and clipping plants. Studies have shown that forage quality digestibility are greater prairie dog towns than off town; however, research is lacking quantifies rates nutrition intake cattle. In 2012−2016, a study was conducted in South Dakota evaluate livestock grazing behavior, diet...
Two 25-d trials (late summer and early winter) were conducted to determine the influence of supplementation method on forage use and grazing behavior. Fifteen ruminally and 12 esophageally fistulated steers (316 and 400 kg, respectively) were blocked by weight and assigned randomly to one of three treatments: 1) self-feeding supplement (via Calan gates) with salt as a limiting agent; 2) daily h...
The importance of plant species diversity on performance of livestock grazing temperate region pastures is summarized in this review. As livestock producers seek less capital-intensive production systems, emphasis is redirected toward low-input pasture systems that rely on complex species mixtures to produce forage. Increased plant species diversity has been linked to improvements in ecosystem ...
Compared to temperate systems, there have been few detailed assessments of canopy characteristics and associated grazing behavior in planted tropical grasslands. Reasons include the large number of forage species used in warm climates, the diversity of their morphology, research priorities emphasizing germplasm evaluation and management, and limited resources. This review describes canopy attri...
Using the seawater dilution technique, we measured phytoplankton growth and microzooplankton grazing rates within and outside of the 1999 Bering Sea coccolithophorid bloom. We found that reduced microzooplankton grazing mortality is a key component in the formation and temporal persistence of the Emiliania huxleyi bloom that continues to proliferate in the southeast Bering Sea. Total chlorophyl...
Factors influencing the feeding behavior of goats include grazing management practices, type of vegetation and season, breed and stage of production, group size, and properties of diets fed in confinement. Considerable information has been gathered from visual observation during daylight. However, tools are now available to characterize the feeding behavior of goats while grazing and while in c...
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 to protect the host against infection by gastrointestinal nematodes. The aim of this study was to assess whether grazing distance from dung is related to the level of parasitic infection in catt...
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