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Economic comparison of stocker cattle performance on winter wheat vs. summer-dormant tall fescue with nitrogen or interseeded alfalfa in the southern great plains.
Transl Anim Sci
November 2024
Bayer Crop Science, St. Louis, MO, USA 63141-7843.
Winter wheat ( L.) is a significant forage source for livestock grazing in the Southern Great Plains (SGP). However, increasing input costs and changing climate conditions compel producers and researchers to search for alternative forage systems, such as cool-season perennials.
View Article and Find Full Text PDFThe LTAR Integrated Common Experiment at Southern Plains.
J Environ Qual
November 2024
USDA-ARS, Livestock, Forage, and Pasture Management Research Unit, Oklahoma and Central Plains Agricultural Research Center, El Reno, Oklahoma, USA.
The Southern Plains (SP) is one of 18 Long-Term Agroecosystem Research network sites that combine strategic research projects with common measurements across multiple agroecosystems. Projects at the SP site focus on the use of indicator measurements to aid in assessment of land and nutrient management's impact on soil health, water quality, carbon and water balances, and forage biomass-quality in diversified, adaptive crop-livestock systems designed to overcome shifts in natural resources and climate. The prevailing treatment is tilled winter wheat (Triticum aestivum L.
View Article and Find Full Text PDFPlant-parasitic Nematodes Associated with Grasses Grown for Seed in the Willamette Valley of Oregon.
J Nematol
March 2024
Oregon State University, Department of Horticulture, 4017 Agriculture and Life Sciences Building, Corvallis, OR 97331.
Article Synopsis
- Plant-parasitic nematodes (PPN) are a less-known group of pathogens affecting cool-season grass seed crops in Oregon, and this survey identifies their presence in various grass species.
- The study sampled 37 fields during the 2022 and 2023 growing seasons, revealing significant differences in PPN community composition based on the type of grass host and the time of sampling.
- DNA sequencing techniques uncovered several nematode species, some of which are noted for the first time in association with these grasses, highlighting the need for more research on their impact on grass yield and health.
Levodopa attenuates the feed intake reduction caused by ergot alkaloids in cattle.
J Anim Sci
January 2024
Department of Animal and Food Science, University of Kentucky, Lexington, KY, USA.
Consumption of ergot alkaloids from endophyte-infected tall fescue results in losses to the livestock industry in many countries and a means to mitigate these losses is needed. The objective of this study was to evaluate intra-abomasal infusion of the dopamine precursor, levodopa (L-DOPA), on dopamine metabolism, feed intake, and serum metabolites of steers exposed to ergot alkaloids. Twelve Holstein steers (344.
View Article and Find Full Text PDFAdoption by olive baboons () of newly constructed electricity pylons as sleeping sites in Laikipia, Kenya.
Ecol Evol
March 2024
Conservation Science & Wildlife Health San Diego Zoo Wildlife Alliance San Diego California USA.
Olive baboons () use fixed, secure, and naturally occurring sleeping sites such as tall trees and rocky cliffs, as protection from predators and often show a selection preference for particular trees or rocky cliff faces. We documented olive baboons' adoption of recently constructed high-tension electrical transmission towers (pylons) as a novel type of sleeping site in Laikipia, Kenya. The use of pylons suggests that the greatest potential benefits may include reduced parasite exposure and predation avoidance.
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