Using a Range-Livestock Model to Estimate Maximum Cow-Calf Stocking Rates on a Mixed-Grass Prairie

2006 ◽  
Author(s):  
Allan A. Andales ◽  
Lajpat R. Ahuja
Keyword(s):  
Mixed Grass Prairie ◽  
Mixed Grass ◽  
Cow Calf ◽  
Stocking Rates

scholarly journals 263 Interaction between stocking and supplementation rates on the performance of steers grazing mixed-grass prairie during winter

2019 ◽  
Vol 97 (Supplement_3) ◽  
pp. 90-90
Author(s):  
Stacey A Gunter
Keyword(s):  
Body Weight ◽  
Body Weight Gain ◽  
Average Daily Gain ◽  
Random Variable ◽  
Experimental Unit ◽  
Beef Steers ◽  
Stocking Rate ◽  
Mixed Grass Prairie ◽  
Mixed Grass ◽  
Stocking Rates

Abstract To evaluate the effects of stocking and supplementation rates on steers grazing mixed-grass prairie during winter, 16 pastures (10 to 21 ha each) were selected and treatments were arranged in a 3 x 2 factorial design; the first factor was an stocking rate of 39.4, 33.2, and 29.7 animal-unit-d/ha harvested over 88 d of grazing; the second factor was supplementation at 0.9 or 1.4 kg/d. Steers were fed a 43% CP cottonseed meal-based pellet. Pastures were stocked annually in late January (2009, 2010, and 2011) with British x Continental crossbred beef steers (body weight = 202 ± 6.7 kg; n = 137 steers/yr) at stocking densities described above. Data were analyzed by ANOVA with pasture as the experimental unit and year as a random variable; least-squares means were separated with linear and quadratic contrast. From late-January to mid-March, average daily gain (ADG, kg) did not differ (P = 0.13) among stocking rates, but ADG differed (P = 0.01) between 0.9 and 1.4 kg of supplement/d. From mid-March to late-April and over the entire grazing period, ADG responded to stocking rate and interacted (P < 0.01) with supplementation rate; ADG tended to respond quadratically (P ≤ 0.09) to stocking rate at 0.9 kg/d of supplementation, but with 1.4 kg/d of supplement ADG was not affected (P ≥ 0.18). Body weight gain per hectare tended (P < 0.08) to interact between stocking and supplementation rates. With 0.9 kg/d of supplement the BW gain per hectare increased quadratically (P < 0.01) in response to increasing stocking rate, where supplementation at 1.4 kg/d resulted in BW gain per hectare increasing linearly (P < 0.01). Optimal supplementation rates with high-protein feeds is related to stocking rate. At lower stocking rates, less supplement seems to be most beneficial. At higher stocking rates, more supplement is justified.

scholarly journals Seasonal temperature and precipitation effects on cow–calf production in northern mixed-grass prairie

2013 ◽  
Vol 155 (2-3) ◽  
pp. 355-363 ◽  
Author(s):  
Justin L. Reeves ◽  
Justin D. Derner ◽  
Matt A. Sanderson ◽  
Mark K. Petersen ◽  
Lance T. Vermeire ◽  
...  
Keyword(s):  
Seasonal Temperature ◽  
Mixed Grass Prairie ◽  
Temperature And Precipitation ◽  
Mixed Grass ◽  
Cow Calf

Effects of Disturbance on Silver Sagebrush Communities in Dry Mixed-Grass Prairie

2013 ◽  
Vol 31 (3) ◽  
pp. 274-282
Author(s):  
L. K. Hickman ◽  
P. A. Desserud ◽  
B. W. Adams ◽  
C. C. Gates
Keyword(s):  
Mixed Grass Prairie ◽  
Mixed Grass

scholarly journals 179 Using a 100% Dried Distillers Grains Cube as a Supplement for Steers Grazing Mixed Grass Prairie in Oklahoma

2020 ◽  
Vol 98 (Supplement_2) ◽  
pp. 46-46
Author(s):  
Zane N Grigsby ◽  
Paul A Beck ◽  
Stacey A Gunter
Keyword(s):  
Animal Health ◽  
Late Summer ◽  
Estradiol Benzoate ◽  
Positive Control ◽  
Negative Control ◽  
Early Summer ◽  
Trenbolone Acetate ◽  
Mixed Grass Prairie ◽  
Mixed Grass ◽  
Main Plot

Abstract This research was conducted to determine effects of supplementation and implanting on BW gain by steers grazing mixed grass prairie (n = 12 pastures, 19.9 ± 0.7 ha) in northwest Oklahoma. Three main plot treatments were: 1) Negative Control (NC), no supplementation, 2) Positive Control (PC), supplemented with DDGS cubes, 1.8 kg/steer on alternate days in late summer, 3) High Supplement (HS), 1/3 increase in stocking rate with 0.75% BW supplemental DDGS cubes all season. Steers (n = 125, BW = 223.1 ± 23.2 kg) were stocked at 2.2 ha/steer for PC and NC, 1.3 ha/steer for HS. Grazing was from May 17 – September 27 (132 d). All steers were implanted with 200 mg progesterone and 20 mg estradiol benzoate (SYN, Synonvex S, Zoetis Animal Health) on May 17. On July 18 three reimplant treatments were applied: 1) no reimplant; 2) SYN; or 3) 40 mg trenbolone acetate and 8 mg estradiol (Revalor G, Merck Animal Health). Data were analyzed using the PROC MIXED in SAS as a split-plot experimental design. In early summer HS had 0.26 kg greater (P < 0.01) ADG than NC and PC. Late summer gains of PC were 0.33 kg/d more (P ≤ 0.01) than NC; and HS gained 0.49 and 0.16 kg/day more (P ≤ 0.04) than NC and PC, respectively. Gain per hectare for PC (46 kg/ha) were greater (P < 0.01) than NC (35 kg/ha) and more than doubled (P < 0.01) with HS (89 kg/ha). Reimplanting had no effect on ADG (P ≥ 0.28). Late season supplementation with PC resulted in supplemental efficiency of 2.7 kg supplement/kg added gain compared with NC. Increased stocking rates with season long supplementation in HS resulted in supplemental efficiency of 3.8 kg supplement/kg added gain per hectare. Based on these data, a 100% DDGS cube is an effective supplement option to increase BW gain during the late summer or increase carrying capacity and gain during the summer grazing period in northwestern Oklahoma.

scholarly journals Response of a mixed grass prairie to an extreme precipitation event

Ecosphere ◽  
2015 ◽  
Vol 6 (10) ◽  
pp. art172 ◽  
Author(s):  
Amy L. Concilio ◽  
Janet S. Prevéy ◽  
Peter Omasta ◽  
James O'Connor ◽  
Jesse B. Nippert ◽  
...  
Keyword(s):  
Extreme Precipitation ◽  
Extreme Precipitation Event ◽  
Precipitation Event ◽  
Mixed Grass Prairie ◽  
Mixed Grass

scholarly journals Black-Tailed Prairie Dog Effects on Montana's Mixed-Grass Prairie

2004 ◽  
Vol 57 (6) ◽  
pp. 641-648 ◽  
Author(s):  
Carolyn M. Johnson-Nistler ◽  
Bok F. Sowell ◽  
Harrie W. Sherwood ◽  
Carl L. Wambolt
Keyword(s):  
Prairie Dog ◽  
Mixed Grass Prairie ◽  
Mixed Grass
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