نتایج جستجو برای: native fescue
تعداد نتایج: 103580 فیلتر نتایج به سال:
Small cow-calf operations are common in the Appalachian region. Tall fescue [Lolium arundinaceum (Schreb.) S. J. Darbyshire] is the dominant forage in these systems for direct grazing as well as for stockpiling. The present study was conducted from 2001 to 2005. A total of 108 Angus and Angus crossbred cows were allotted randomly to 6 forage systems and then to 3 replicates within each system. ...
Estimating diet digestibility: a comparison of 11 techniques across six different diets fed to rams.
Six digestion trials were conducted using eight Suffolk rams (four/trial; two trials run concurrently) to determine the ability of 11 techniques to estimate in vivo apparent DM digestibility (DMD). Diets (trials) were as follows: 1) ad libitum access to chopped fescue hay, 2) ad libitum access to alfalfa hay, 3) limit-fed fescue hay, 4) limit-fed alfalfa hay, 5) 25% soybean meal and 75% fescue ...
Endophyte infected tall fescue (E+) is the base diet for nearly all beef cattle in the southern USA. It has been linked to a variety of toxicological conditions due to the presence of large numbers of ergot alkaloids. This study was designed to investigate the effects of E+ seed extract and selected ergot alkaloids on the detoxification pathway by cytochrome P450 (CYP3A4) enzyme system. Tests w...
The analysis of large genomes is hampered by a high proportion of repetitive DNA, which makes the assembly of short sequence reads difficult. This is also the case in meadow fescue (Festuca pratensis), which is known for good abiotic stress resistance and has been used in intergeneric hybridization with ryegrasses (Lolium spp.) to produce Festulolium cultivars. In this work, we describe a new a...
Germination response to varying temperatures and water stress levels during a 30-day incubation period was observed in 4 eastern Oregon collections of Festuca iduhoensis Elmer. Seeds were selected from the following habitat types: Artemisia trident&a ssp. wyomingensis/Festuca iduhoensis (ARTRV/FEID), Pinus ponderosa Dougl./Festucu idahoensis (PIPO/FEID). One stand of each habitat type was sampl...
Fine fescue taxa differ in their field establishment rate but it is unclear if this due to differences germination or seedling growth rate. Research at Purdue University quantified seed morphology, vigor, and vigor among 30 cultivars of fine (FF) (Festuca spp.). Strong creeping red (STCRF) rubra ssp. rubra), slender (SLCRF) (F. littoralis), Chewings commutata), hard brevipila), sheep ovina) wer...
Heat stress transcription factors (HSFs) compose a large gene family, and different members play differential roles in regulating plant responses to abiotic stress. The objectives of this study were to identify and characterize an A2-type HSF, FaHsfA2c, in a cool-season perennial grass tall fescue (Festuca arundinacea Schreb.) for its association with heat tolerance and to determine the underly...
High temperature stress is a major limiting factor in the growth and development of tall fescue (Festuca arundinacea) in transitional and warm climatic regions. In this study, we evaluated the photosynthesis, PSII functionality, and antioxidant activity of two tall fescue cultivars, Jaguar 3 brand (heat-tolerant) and TF 66 (heat-sensitive) in response to high temperature stress. High temperatur...
The objective of this study was to determine the effect harvesting alfalfa ( Medicago sativa L.) and tall fescue [Schedonorus arundinaceus (Schreb.) Dumort] after frost ensiling mixtures these forages on silage fermentation characteristics, intake, digestibility ruminal by ewe lambs. Forages were harvested in October 2017, wilted, blended as either alone, 67% + 33% novel endophyte-infected fesc...
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