Effect of Grazing Management on Diet Quality, Intake, and Digestion in Steers Grazing Native Range in Western North Dakota PDF Download
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Author: Holly Jo Pitcher-Cline
Publisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 166
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Author: Holly Jo Pitcher-Cline
Publisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 166
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Author:
Publisher: ScholarlyEditions
ISBN: 1464965080
Category : Science
Languages : en
Pages : 1115
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Book Description
Issues in Animal Science and Research / 2011 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Animal Science and Research. The editors have built Issues in Animal Science and Research: 2011 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Animal Science and Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Animal Science and Research: 2011 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.
Author: Jacki Ann Johnson
Publisher:
ISBN:
Category : Animal nutrition
Languages : en
Pages : 98
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Author: Victor R. Squires
Publisher: EOLSS Publications
ISBN: 1848263716
Category :
Languages : en
Pages : 424
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Range and Animal Sciences and Resources Management is a component of Encyclopedia of Food and Agricultural Sciences, Engineering and Technology Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. Rangelands comprise over forty percent of the earth's land surface and, as one of the most prevalent land systems on the planet, rangelands are critical habitats for myriad plant and animal species and form many of the world's major watersheds Rangelands are categorized in two distinct ways: (a) as a type of land or (b) a type of (land) use. This theme with contributions from distinguished experts in the field discusses about Range and Animal Sciences and Resources Management in several related topics. These two volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.
Author:
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 324
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"Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Author: David Kenneth Blount
Publisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 234
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A trial was conducted May 1 to September 4, 1989 at the Eastern Oregon Agricultural Research Center (EOARC) Burns, OR to examine the effects of strip or continuous grazing management on the diet and performance of steers grazing native flood meadows. The objective was to determine if strip grazing would be a more efficient means of grazing management than continuous grazing. The experiment was designed to test diet quality, botanical composition of the diet, daily dry matter (DM) intake and performance of yearling steers. Eighty yearling steers weighing 253±17 kg were selected from cattle at the Squaw Butte Experiment Station. The experimental design was a randomized complete block, with blocking based on past forage production. Treatments were continuous or strip grazing. A representative meadow of approximately 22.4 ha was divided into four equal pastures. Continuous grazing steers had access to 5.6 ha pastures for the duration of the study. Animals on strip grazing were confined to an area that was estimated to provide 5-7 days of forage using New Zealand portable electric fencing. Strip sizes were predetermined based on standing forage crop. Steers were not allowed to graze more than 7 days in any one strip. Diet quality was estimated from bi-weekly esophageal samples. Extrusa was collected from 4 esophageal fistulated steers per treatment on two consecutive days. Collections were timed to coincide with the mid point of the strip being currently grazed. Samples were pooled by collection dates and analyzed for CP and IVOMD. Dietary OM intake was estimated from biweekly, 24 hr total fecal collections starting the day following esophageal collections. Total DM fecal output from 6 fecal collection steers per treatment was corrected with the %IVOMD to predict actual DM intake. Diet botanical composition was estimated by microhistological examination of fecal sub-samples. Animal weight gains were recorded bi-weekly. Experimental animals grazed together at all times during the trial. Initial stocking densities were 2.0 AU/ha in each treatment pasture. Steers were counted as .56 AU with 20 steers grazing 5.6 ha pastures. The average strip size over the trial was .46 ha; and depending upon standing crop of forage, ranged from .23-1.15 ha. Record moisture from snowmelt and rainfall resulted in greater than expected standing crop of forage. This growth resulted in under stocking of both treatment pastures. A 1.08 ha block was removed as hay from the higher forage producing strip treatment block to adjust for over abundant forage. This resulted in a total mean strip grazed area of 4.37 ha or 22% less than continuous grazing. Actual grazing density means over the summer were 2.6 AU/ha for continuous and 3.15 AU/ha for the strip treatment. Available forage was determined from clipped plots on a DM basis and expressed as herbage allowance at a given point in time. Herbage allowance for steers in continuous grazed pastures ranged from 405-1153 kg/AU when measured at bi-weekly intervals and 68-186 kg/AU for strip grazed steers when estimated at the beginning of each strip. Grazing pressure was higher for strip grazed steers (.10 AU/kg) compared to continuous (.02 AU/kg). Diet quality declined significantly over the summer (P
Author: Martha Ann Funk
Publisher:
ISBN:
Category : Beef cattle
Languages : en
Pages : 148
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Author: Michael J. Knott
Publisher:
ISBN:
Category :
Languages : en
Pages : 128
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Author: David W. Rodgers
Publisher:
ISBN:
Category : Feeds
Languages : en
Pages : 254
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Author:
Publisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 1732
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