Movement, activity, and landscape use patterns of heritage and commercial beef cows grazing Chihuahuan Desert rangeland

2022 ◽  
Vol 199 ◽  
pp. 104704
Author(s):  
Shelemia Nyamuryekung'e ◽  
Andres F. Cibils ◽  
Richard E. Estell ◽  
Dawn VanLeeuwen ◽  
Sheri Spiegal ◽  
...  
2018 ◽  
pp. 333-346 ◽  
Author(s):  
Jamie Hodgkins ◽  
Petrus le Roux ◽  
Curtis W. Marean ◽  
Kirsty Penkman ◽  
Molly Crisp ◽  
...  

2005 ◽  
Vol 58 (2) ◽  
pp. 99-108 ◽  
Author(s):  
Karen L. Launchbaugh ◽  
Larry D. Howery

2019 ◽  
Vol 97 (Supplement_1) ◽  
pp. 72-73
Author(s):  
Shailes Bhattrai ◽  
Uma Karki ◽  
Sanjok Poudel

Abstract Woodlands dominate the landcover in the Southeast and offer great opportunities for expanding small-ruminant grazing. However, unmanaged understory shrubs grown beyond animals’ access minimizes the utilization of such vegetation. Managing the understory shrubs and non-target trees to lower heights may increase animals’ access to woodland vegetation and alter the landscape-use patterns of animals. The study objective was to determine the effect of vegetation height on the behavior and distribution of Kiko wethers and Katahdin rams in woodlands. The study was conducted in six woodland plots (0.4-ha each) containing southern pine and hardwood trees and numerous understory vegetation. The non-pine species were either cut to one of the heights from the ground level (0 m, 0.91 m, 1.52 m) or left uncut (control). Once the cut vegetation grew back and attained the full canopy, Kiko wethers (8, 48–50 months old, 72.8 ± 2.29 kg live weight) and Katahdin rams (5, 29–32 months old, 95.5 ± 4.31 kg live weight) were rotationally stocked in separate plots (3 plots each species), and their diurnal (dawn-dusk) behaviors and distribution patterns monitored when they were in each plot during the summer of 2018. Data were analyzed in Kruskal-Wallis rank sum test in R. Both wethers and rams visited the control treatment the least, rams grazed mostly in areas with short vegetation (0 m), and wethers visited more to areas with higher vegetation (1.52 m) than rams for feeding (P < 0.001), which was predominant during the post-midday period (3:00-dusk) (P < 0.0001). Browsing was the dominant feeding behavior of wethers (39% browsing vs. 4% grazing), while rams’ feeding behavior was dominated with grazing (24% grazing vs. 12% browsing). Lying was the dominant diurnal behavior of both wethers (46%) and rams (35%), and predominant during the midday period (11 a.m.-3:00 p.m.) (P <0.05). Vegetation heights and diurnal period highly influenced animals’ behavior.


2020 ◽  
Vol 98 (Supplement_4) ◽  
pp. 218-219
Author(s):  
Shelemia Nyamuryekung’e ◽  
Andres Cibils ◽  
Rick Estell ◽  
Alfredo Gonzalez ◽  
Matthew McIntosh ◽  
...  

Abstract The Chihuahuan Desert averages 247 mm of precipitation annually, 53% of which occurs between July and September. Our objective was to examine movement, activity, pasture use, and watering patterns of Angus x Hereford (AH) and Raramuri Criollo (RC) cows on days with precipitation events (PE, ≥ 1.3 mm rain recorded) vs. days with no precipitation (NP) at the Jornada Experimental Range in southern New Mexico during the summers of 2015, 2016, and 2017. Breeds grazed two adjacent pastures (12A = 1190 ha; 12C = 1165 ha) separately in a crossover design for 4 weeks each year. Seven to nine randomly selected cows per breed were collared with Lotek 3300-LR GPS set to log position every 10 min. An average of 7.6 PE occurred during the 4-week trials each year. On PE days, cows traveled farther (PE = 6.95 vs. NP = 6.43 km, P &lt; 0.01), spent more time grazing (PE = 9.07 vs. NP = 8.76 h/day, P = 0.07) and less time resting (PE = 13.90 vs. NP = 14.38 h/day, P = 0.01), and traveled similar distances from watering points (PE = 0.84 vs. NP = 0.80 km, P = 0.41) compared to NP days. On PE days, cows spent less time within 200 m (PE = 1.32 vs. NP = 2.95 h, P &lt; 0.01) and 100 m (PE = 0.79 vs. NP = 1.90 h, P &lt; 0.01) of drinkers regardless of breed. We detected no rainfall x breed interaction (P &gt; 0.05). Overall, RC cows traveled farther, at higher velocities, spent more time grazing, less time resting, and explored areas with greater radius than AH counterparts (P &lt; 0.05). Precipitation appeared to relax environmental constraints on activity of both breeds, likely due to availability of ephemeral watering sources and a transient drop in temperature.


2020 ◽  
Vol 30 ◽  
pp. 102214
Author(s):  
Christophe Snoeck ◽  
Carleton Jones ◽  
John Pouncett ◽  
Steven Goderis ◽  
Philippe Claeys ◽  
...  

2019 ◽  
Vol 97 (Supplement_1) ◽  
pp. 16-16
Author(s):  
Shailes Bhattrai ◽  
Uma Karki ◽  
Sanjok Poudel

Abstract Woodlands dominates the landcover in the Southeast and offer great opportunities for expanding small-ruminant grazing. However, unmanaged understory shrubs grown beyond animals’ access minimizes the utilization of such vegetation. Managing the understory shrubs and non-target trees to lower heights may increase animals’ access to woodland vegetation and alter the landscape-use patterns of animals. The study objective was to determine the effect of vegetation height on the behavior and distribution of Kiko wethers and Katahdin rams in woodlands. The study was conducted in six woodland plots (0.4-ha each) containing southern pine and hardwood trees and numerous understory vegetation. The non-pine species were either cut to one of the heights from the ground level (0 m, 0.91 m, 1.52 m) or left uncut (control). Once the cut vegetation grew back and attained the full canopy, Kiko wethers (8, 48–50 months old, 72.8 ± 2.29 kg live weight) and Katahdin rams (5, 29–32 months old, 95.5 ± 4.31 kg live weight) were rotationally stocked in separate plots (3 plots each species), and their diurnal (dawn-dusk) behaviors and distribution patterns monitored when they were in each plot during the summer of 2018. Data were analyzed in Kruskal-Wallis rank sum test in R. Both wethers and rams visited the control treatment the least, rams grazed mostly in areas with short vegetation (0 m), and wethers visited more to areas with higher vegetation (1.52 m) than rams for feeding (P < 0.001), which was predominant during the post-midday period (3:00-dusk) (P < 0.0001). Browsing was the dominant feeding behavior of wethers (39% browsing vs. 4% grazing), while rams’ feeding behavior was dominated with grazing (24% grazing vs. 12% browsing). Lying was the dominant diurnal behavior of both wethers (46%) and rams (35%), and predominant during the midday period (11 a.m.-3:00 p.m.) (P < 0.05). Vegetation heights and diurnal period highly influenced animals’ behavior.


Rangelands ◽  
2016 ◽  
Vol 38 (5) ◽  
pp. 292-296 ◽  
Author(s):  
Laura E. Goodman ◽  
Andrés F. Cibils ◽  
Robert L. Wesley ◽  
J. Travis Mulliniks ◽  
Mark K. Petersen ◽  
...  

2019 ◽  
Vol 4 (3) ◽  
pp. 474-482
Author(s):  
Sarah L. Schneider

PurposeVocal fold motion impairment (VFMI) can be the result of iatrogenic or traumatic injury or may be idiopathic in nature. It can result in glottic incompetence leading to changes in vocal quality and ease. Associated voice complaints may include breathiness, roughness, diplophonia, reduced vocal intensity, feeling out of breath with talking, and vocal fatigue with voice use. A comprehensive interprofessional voice evaluation includes auditory-perceptual voice evaluation, laryngeal examination including videostroboscopy, acoustic and aerodynamic voice measures. These components provide valuable insight into laryngeal structure and function and individual voice use patterns and, in conjunction with stimulability testing, help identify candidacy for voice therapy and choice of therapeutic techniques.ConclusionA comprehensive, interprofessional evaluation of patients with VFMI is necessary to assess the role of voice therapy and develop a treatment plan. Although there is no efficacy data to support specific voice therapy techniques for treating VFMI, considerations for various techniques are provided.


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