A5036699364- Agriculture Sustainability and Environmental Impact
- Ruminant Nutrition and Digestive Physiology
- Genetic and phenotypic traits in livestock
- Genetic Mapping and Diversity in Plants and Animals
- Soil Carbon and Nitrogen Dynamics
- Odor and Emission Control Technologies
- Animal Behavior and Welfare Studies
- Thermoregulation and physiological responses
- Genetic and Clinical Aspects of Sex Determination and Chromosomal Abnormalities
- Sustainable Agricultural Systems Analysis
- Organic Food and Agriculture
- Economic and Environmental Valuation
- Effects of Environmental Stressors on Livestock
- Demographic Trends and Gender Preferences
- Agricultural Economics and Policy
- Reproductive Health and Technologies
- Isotope Analysis in Ecology
- Anaerobic Digestion and Biogas Production
- Reproductive Biology and Fertility
- Genetic Syndromes and Imprinting
- Environmental Justice and Health Disparities
- Cassava research and cyanide
- Urban Agriculture and Sustainability
Colorado State University
2019-2024
Pennsylvania State University
2015-2020
Texas A&M University
2015
A comprehensive national assessment of the sustainability beef is being conducted by U.S. industry. The first 7 regions to be analyzed Kansas, Oklahoma, and Texas. survey visits throughout region provided data on common production practices. From these data, representative ranch feedyard operations were defined simulated for varying climate soil conditions using Integrated Farm System Model. These simulations predicted environmental impacts each operation including cradle-to-farm gate...
An assessment of the sustainability beef production in Kansas, Oklahoma, and Texas region requires information on their practices. A voluntary survey was conducted for ranches feedyards along with site visits to gather Responses represented 0.8% cows maintained 9% cattle finished region, a wide range size types operations. Most characteristics cow-calf stocker did not vary much across states, but there were differences cow stocking rates forage from wetter east side drier, semiarid...
Quantifying the impact of thermal stress on milk yields is essential to effectively manage present and future risks in dairy systems. Despite existence numerous heat indices designed communicate thresholds, little information available regarding accuracy different estimating yield losses from both cold at large spatio-temporal scales. To address this gap, we comparatively analyzed performance existing capturing US response national scale. We selected four commonly used indices: Temperature...
The growing interest in incentivizing sustainable agricultural practices is supported by a large network of voluntary production standards, which aim to offer farmers and ranchers increased value for their product support reduced environmental impact. To be effective with producers consumers alike, these standards must both credible broadly recognizable, thus are typically highly generalizable. However, the impact agriculture strongly place-based varies considerably due complex biophysical,...
Brahman-cross calves exhibit unusual inheritance of birth weight: Brahman-sired crossbreds out females are heavier with greater difference between sexes than the reciprocal cross. The objectives this work were to confirm that and investigate non-Mendelian genetic effects may influence differences in Brahman × Simmental crossbred calves. Crossbred produced by embryo transfer ( = 2,862) natural service or artificial insemination 2,125) from 1983 1991 a private seedstock producer. F embryos...
Our objective was to characterize grass-fed beef cattle production systems in the Northeast United States. We surveyed 70 producers learn about their management practices. Responses were assigned USDA Plant Hardiness Zones according location. Farms also categorized based on whether they produced or purchased forage meet herd's year-round nutritional needs. compared using nonparametric methods. Grazing seasons up 2.3 mo longer warmer zones than cooler (P < 0.01), likely contributing 46% less...
Abstract The relationship between nutrition, production and environmental aspects of ruminant livestock systems is a complex highly nuanced subject that has long suffered from oversimplification assumptions associated within these practices. However, with the advent new evolving models growing understanding complexities their interactions each other, there been large welcome growth in recent literature regarding emerging technologies, insights will allow for appropriate impactful changes...
Abstract As our global agriculture landscape continues to change it has become more important than ever find sustainable alternatives feed livestock. Hempseed and its derivatives may provide alternative sources of nutrients for inclusion in livestock diets, however, due the paucity research on hemp byproducts, there is no authorization these products food animal diets. We hypothesized that digestibility use hempseed meal would be similar other protein sources. Forty Western White-Faced...
The 2020 Social and Environmental Apocalypse:Reimagining Black America Tatiana Height, Olivia T. Ngadjui, Fushcia-Ann Hoover, Jasmine A. Dillon Prelude: Writing as Community While the COVID-19 pandemic has had disastrous impacts on marginalized communities, global situation also set stage for a number of activist movements virtual writing spaces form resistance. In midst pandemic, founder Women PhDsⓇ former colleague/friend came up with idea starting accountability group women color. color...
Representing the performance of cattle finished on an all forage diet in process-based whole-farm system models has presented a challenge. To address this challenge, study was done to evaluate ADG predictions Integrated Farm System Model (IFSM) for steers consuming all-forage diets during finishing period. Animal data from warm-season annual grazing trials conducted 2014 and 2015 at Eatonton Beef Research Unit were compared with model predictions. Treatments representing highest (BMR14),...
Abstract Grass-fed beef systems (GFB) are one approach proposed to improve the sustainability of animal-sourced foods. Our objective was estimate carbon (CF) and reactive nitrogen (NF) footprints cost production (COP) for northeastern U.S. GFB. A partial life cycle assessment conducted using Integrated Farm System Model (IFSM). Systems were characterized surveys interviews. Representative operations simulated in IFSM by grouping farms with similar environments forage management practices....
Abstract Grazing distribution is an important aspect of pasture management, yet measuring traits for sustainable forage consumption challenging. Uplands are often un-grazed by beef cattle due to rugged terrain while riparian zones heavily grazed; thus, may be achieved if improved landscape utilization encouraged. Modifying grazing behaviour with fencing and (or) water-source feeding location(s) effective in improving patterns; however, these infrastructure improvements typically expensive,...