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Articles 1981 - 2010 of 18292

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Applying The Transdisciplinary Adaptive Systemic Approach To Securing The Long-Term Future Of Grassland Ecosystems, C. G. Palmer, Z. W. Tessema, A. Bantider, B. Gusha, J. Tanner Feb 2024

Applying The Transdisciplinary Adaptive Systemic Approach To Securing The Long-Term Future Of Grassland Ecosystems, C. G. Palmer, Z. W. Tessema, A. Bantider, B. Gusha, J. Tanner

IGC Proceedings (1977-2023)

Contemporary grasslands all exist as complex adaptive systems, specifically complex social-ecological systems – whether these are in protected areas or are part of private or communal agricultural landscapes. These systems are subject to the current planetary condition that includes rapidly growing human populations and demand for natural resources, the widespread use of pollutants, and climate change consequences. All complex adaptive systems have characteristics in common - they comprise multiple elements, which interact, and the multiple interactions cause intersecting feedback loops. As a result, a current system condition reflects its history, future condition is difficult to predict, and interventions have unpredictable …


Saving Rangelands From Pastoralists? Understanding The Long-Term Socio-Ecological Consequences Of The Current Rangeland Conservation Model In The Indian Himalaya, Rashmi Singh Feb 2024

Saving Rangelands From Pastoralists? Understanding The Long-Term Socio-Ecological Consequences Of The Current Rangeland Conservation Model In The Indian Himalaya, Rashmi Singh

IGC Proceedings (1977-2023)

Following the mainstream narrative of biodiversity conservation, state-led policies of pastoralist removal from protected areas have been a common practice across parts of Asia and Africa. In the Himalayan region, restrictive access and removal of pastoralist communities from protected areas have been assumed to be the best remedy for rangeland conservation. But does this practice translate into any benefits for conservation? This paper critiques the current conservation model adopted in the Indian Himalayas. I argue that this model simply recreates a landscape favouring the state’s interests, produces exclusions, and may also negatively affect both society and ecology. I build on …


Fencing Lands To Enhanced Climate Change Resilience, Promoting Biodiversity Regeneration And Improved Livelihoods Of Climate Change In Makueni County, Frank Wesonga, Francis Keya Feb 2024

Fencing Lands To Enhanced Climate Change Resilience, Promoting Biodiversity Regeneration And Improved Livelihoods Of Climate Change In Makueni County, Frank Wesonga, Francis Keya

IGC Proceedings (1977-2023)

Kenya is a food insecure country, weather patterns are drastically changing and people are losing livelihoods and earnings when their lands dry, water for domestic supply lacks and livestock die further frustrating livelihoods of the poor. This paper briefly discusses Fencing of lands as prerequisite to biodiversity protection and faster water retention mechanism, through tree planting, enhancing CO2 sequestration as trees, shrubs and vegetation’s find suitable environment to grow. Baringo and Makueni County are characterized by unsustainable agriculture, environmental degradation resulting from soil erosion, high poverty levels and food insecurity due to unpredictable dry spells and climate change. The present …


Physically Adjusted Ndf: Integrating Forage Physical Form With Diet Complexity On The Farm, P. J. Kononoff, M. B. Hall Feb 2024

Physically Adjusted Ndf: Integrating Forage Physical Form With Diet Complexity On The Farm, P. J. Kononoff, M. B. Hall

IGC Proceedings (1977-2023)

Physical form of forages and their neutral detergent fiber (NDF) content are crucial in ruminant diets for maintaining a healthy rumen and a productive animal. A challenge has been in taking the concept from its research base and applying it successfully in varied diets. A new system for physically adjusted NDF (paNDF) offers an option. It takes into account the forage, NDF, starch and other components in the diet and uses the Penn State Particle Separator on farm to assess total mixed ration particle size to provide recommendations on directions to move the diet to maintain a healthy rumen. This …


Organization Of Indigenous Dairy Cattle Production System In Murunkan Veterinary Region In Mannar District, Sri Lanka, Rmus Bandara, S. Fernando, S. C. Somasiri Feb 2024

Organization Of Indigenous Dairy Cattle Production System In Murunkan Veterinary Region In Mannar District, Sri Lanka, Rmus Bandara, S. Fernando, S. C. Somasiri

IGC Proceedings (1977-2023)

The dairy sector in Murunkan veterinary region in Mannar district in the northern province, Sri Lanka was adversely affected by the 30-year-long civil war which ended in 2009. The post-war recovering dairy sector in the region produced 2.11 million litres of milk in 2017. However, the lack of updated information constrained the sector’s development and identification of development interventions. Hence, this study was designed to review the organization of the dairy production system in the Murunkan veterinary region in Mannar district. A survey was conducted involving 100 dairy cattle farmers selected from 40 villages in the Murunkan veterinary region using …


Effects Of Different Production Systems On The Nutrient Density Of Beef, T. Statham, J. Cloward, N. Evans, S. Van Vliet Feb 2024

Effects Of Different Production Systems On The Nutrient Density Of Beef, T. Statham, J. Cloward, N. Evans, S. Van Vliet

IGC Proceedings (1977-2023)

As concerns regarding beef production systems on human health and animal welfare become more apparent, consumer interest in pasture-raised livestock has been steadily on the rise in the US. Such interest has increasingly led to questions about potential nutritional composition differences in beef from different production systems, such as grass-fed beef and grain-fed beef. The goal of this work was to conduct untargeted metabolomics analysis on a broad range of samples from the US beef supply chain to provide insight into how different finishing systems impact the beef metabolome and nutrient density. Here, we found that 191 out of 802 …


Yak (Bos Grunniens): The Mammal Of Socio-Economic Importance In Gilgit- Baltistan, Pakistan, Muhammad Tariq, Asif Hameed Feb 2024

Yak (Bos Grunniens): The Mammal Of Socio-Economic Importance In Gilgit- Baltistan, Pakistan, Muhammad Tariq, Asif Hameed

IGC Proceedings (1977-2023)

The yaks are long-haired humped bovid, a multipurpose animal that can survive in a low oxygen and cold environment at an elevation of 2000 to 6000 meters above sea level. The animal has the ability to graze diverse foliage from coarse shrubs to short grasses. The majority of yak population is still living in central Asian highlands, which include parts of Tibet, China, Indo-Pak. Yak rearing in Pakistan is bounded to higher elevations (3,500–4,500 meters a.s.l) of Gilgit-Baltistan (GB) and Chitral, where yak is important and places the only means of livelihood through theprovision of milk, meat, and wool, hairs …


Integrated Crop And Pasture Based Livestock Production System Success On Reclaimed Surface Coal Mined Land In South Africa, W. F. Truter, E. N. Cele Feb 2024

Integrated Crop And Pasture Based Livestock Production System Success On Reclaimed Surface Coal Mined Land In South Africa, W. F. Truter, E. N. Cele

IGC Proceedings (1977-2023)

Coal mining is the largest surface mining operation in South Africa’s grassland biome. Surface mining is leaving large tracts of land revegetated to pasture species as mining companies attempt to reclaim the agricultural potential of mined areas. Top soil management remains the key challenge to ensure agricultural productivity. During the reclamation process, newly placed soils are very often chemically, physically and microbiologically degraded, and high soil ameliorant inputs are required to catalyse agroecosystem function. These revegetated landscapes can offer good grazing capacity; however, to date there are no livestock grazing these areas, resulting in the subsequent deterioration of these new …


Grazing And Animal Welfare Of Dairy Cows In Europe, What Do We Know?, A. Van Den Pol-Van Dasselaar, D. Hennessy, J. Isselstein Feb 2024

Grazing And Animal Welfare Of Dairy Cows In Europe, What Do We Know?, A. Van Den Pol-Van Dasselaar, D. Hennessy, J. Isselstein

IGC Proceedings (1977-2023)

Grazing systems are important components of the landscape in almost all European countries. Grazing is inherently close to the nature of herbivores, but no longer applied everywhere in Europe. This paper discusses the extent of dairy cow grazing in Europe and the effect of grazing on animal welfare. The study builds on results of surveys from the European Grassland Federation (EGF) Working Group “Grazing” (WGG) in the period 2010–2022 and a focus group meeting in 2022. Data on the extent of grazing of dairy cows in Europe are provided. Europe can be divided into six distinctive regions with respect to …


Herbage Responses And Performance Of Mature Horses Grazing Warm-Season Perennial Grass-Legume Mixed Pastures, A. C. Vasco, E. R. Santos, J. Lance, J. Dubeux, L. Sollenberger, M. Wallau, C. Wickens, L. Warren Feb 2024

Herbage Responses And Performance Of Mature Horses Grazing Warm-Season Perennial Grass-Legume Mixed Pastures, A. C. Vasco, E. R. Santos, J. Lance, J. Dubeux, L. Sollenberger, M. Wallau, C. Wickens, L. Warren

IGC Proceedings (1977-2023)

Legume-grass mixtures may be a useful alternative to nitrogen-fertilized grass monocultures, but pasture and animal responses have not been assessed for pastures grazed by horses in Florida. This 2-yr study compared pasture and horse responses of continuously stocked, mixed pastures of rhizoma peanut (RP, Arachis glabrata Benth) and bahiagrass (BG, Paspalum notatum Flüggé) receiving 30 kg nitrogen (N)/ha (RP-BG) compared with BG pastures fertilized with 120 kg/N ha (BG-N) or with no N (BG-No N). Herbage mass was similar among treatments in 2020 and for most evaluation days in 2019. In 2019, stocking rate (AU/ha) was greater in …


Integrating Plant Secondary Metabolites And Foraging Behavior To Enhance Animal Health In Ruminant Production Systems, J. J. Villalba, J. W. Macadam, S. Van Vliet, F. D. Provenza Feb 2024

Integrating Plant Secondary Metabolites And Foraging Behavior To Enhance Animal Health In Ruminant Production Systems, J. J. Villalba, J. W. Macadam, S. Van Vliet, F. D. Provenza

IGC Proceedings (1977-2023)

Legumes and forbs contain bioactives or plant secondary compounds (PSC) with potential to enhance animal health through their antibiotic, antioxidant and immunomodulatory properties that are evident even at small dietary concentrations. In turn, ruminants can regulate their ingestion of PSC through behavioral mechanisms that allow for the efficient achievement of homeostasis. High concentrations of PSC lead to food avoidance, whereas lower content of PSC in the diet achieved through regulatory mechanisms of ingestion could promote medicinal and/or prophylactic effects in the animal and concomitant health benefits to milk and meat products. Under this context, we discuss the restructuring of rangelands …


The Hindgut Microbiome Of Grazing Horses, J. R. Weinert, C. A. Williams Feb 2024

The Hindgut Microbiome Of Grazing Horses, J. R. Weinert, C. A. Williams

IGC Proceedings (1977-2023)

The hindgut microbiome plays an essential role in horses consuming forage-based diets high in fiber, such as pasture. The equine hindgut harbors a large microbial community that ferments dietary fiber and produces by-products which provide a substantial portion of daily energy requirements. Despite the importance in nutrition and health, research evaluating the hindgut microbiome of grazing horses is relatively limited. Grazing horse microbiome research has primarily focused on inter-diet comparisons with mixed diets including concentrates as well as with other forms of forage. Recent research has begun to explore responses of the gut microbiome to different pasture forage species and …


Horse And Pasture Responses To Stocking Methods: Rotational Versus Continuous, C. A. Williams, J. R. Weinert-Nelson Feb 2024

Horse And Pasture Responses To Stocking Methods: Rotational Versus Continuous, C. A. Williams, J. R. Weinert-Nelson

IGC Proceedings (1977-2023)

Rotational grazing management offers potential advantages for economic and environmental sustainability, as well as for horse health. Rotational grazing has the potential to increase pasture yields and available forage for grazing, and therefore reduce supplemental feed costs. A rotational grazing management strategy can also prevent or mitigate negative effects of overgrazing, with implications for pasture productivity and the environment. Overgrazing can reduce vegetative cover over time, increasing the potential for erosion and nutrient run-off. Overgrazing may also result in long-term decreased forage stand persistence and weed invasion, necessitating more frequent pasture renovation. All of this can negatively impact the horse’s …


Optimizing Production Technology For Sustainable Organic Fodder Production And Soil Health In Indo-Gangetic Plains Of India, Pal Mahendra Singh Feb 2024

Optimizing Production Technology For Sustainable Organic Fodder Production And Soil Health In Indo-Gangetic Plains Of India, Pal Mahendra Singh

IGC Proceedings (1977-2023)

Field experiment was carried at Instructional Dairy Farm, G B Pant University of Agriculture & Technology, Pantnagar (India) during 2020-21 and 2021-22 to optimize the production technology for sustainable organic fodder production and soil health in Indo-Gangetic plains of India. Among the organic production systems, application of vermicompost @ 5 t/ha gave the highest fodder yield, gross return and net return but the B:C ratio was derived highest from zero budget natural farming. Among the Kharif crops grown in different cropping systems, BN hybrid intercropped with cowpea gave the significant higher green and dry fodder yield, gross return, net return …


Ruminant Agriculture: A Tool For Climate Change Mitigation, B. L. Peterson Munks, M. Rellaford, J. Shanahan, S. Urbanowitz, F. Wang, S. Wang, Y. Zhao, E. Bender Feb 2024

Ruminant Agriculture: A Tool For Climate Change Mitigation, B. L. Peterson Munks, M. Rellaford, J. Shanahan, S. Urbanowitz, F. Wang, S. Wang, Y. Zhao, E. Bender

IGC Proceedings (1977-2023)

The quest to address and mitigate climate change has been dubbed a “wicked problem” as it involves many interconnected processes requiring a multifaceted, comprehensive approach. Animal agriculture contributes roughly 15% to CO2 equivalent (CO2e) emissions; as a result, a concerted effort is being made to develop and promote more climate-friendly production practices. These practices include species diversification in grasslands, improving grazing rotation, adding nitrogen amendments, and the use of feed additives to reduce enteric fermentation. Successful inter-seeding of legumes and deep-rooted native grasses increases soil organic carbon (SOC) pools in many systems by increasing the biological carbon inputs to the …


Economics And Other Factors Affecting The Adoption Of Novel Endophyte Technology, M. H. Poore, J. Horner Feb 2024

Economics And Other Factors Affecting The Adoption Of Novel Endophyte Technology, M. H. Poore, J. Horner

IGC Proceedings (1977-2023)

Endophyte infected tall fescue impacts cattle and other livestock across vast regions of the world. Toxicosis from wild type endophyte is widespread in regions where toxic tall fescue is the base perennial forage. The Alliance for Grassland Renewal was founded to address this complex issue and to facilitate appropriate adoption of Novel Endophyte Tall Fescue, the only potentially 100% effective remedy for fescue toxicosis. A poor understanding of the Cost/Benefit ratio of renovating pasture is one of the main reason farmers give for not renovating tall fescue pastures. An Excel-based spreadsheet tool was developed by University of Missouri Extension to …


Smallholder Zebu And Forage Production Development In Central Madagascar, L. Randriamanalina, M. S. Vorontsova, M. T. Rajaonah, O. P. Nanjarisoa, C. E. R. Lehmann, D. Miharinjanahary, H. N. S. Ratovoarinjaka, A. Bendrainy, C. Rijaniaina, A. M. Rabendrina, D. Rabeharison, B. F. Rakotozafy, F. Rakotoarison, D. Tahirinirainy, T. Randriamboavonjy, H. Ralimanana, J. Raharimampionona, C. Birkinshaw, W. Truter Feb 2024

Smallholder Zebu And Forage Production Development In Central Madagascar, L. Randriamanalina, M. S. Vorontsova, M. T. Rajaonah, O. P. Nanjarisoa, C. E. R. Lehmann, D. Miharinjanahary, H. N. S. Ratovoarinjaka, A. Bendrainy, C. Rijaniaina, A. M. Rabendrina, D. Rabeharison, B. F. Rakotozafy, F. Rakotoarison, D. Tahirinirainy, T. Randriamboavonjy, H. Ralimanana, J. Raharimampionona, C. Birkinshaw, W. Truter

IGC Proceedings (1977-2023)

Poverty in the Central Highlands of Madagascar is partly driven by inefficient exploitation of native forages and poor livestock nutrition. Zebus are of importance as cultural symbols, but this tradition has grown disconnected from agricultural policy. This project is working with three central highland communities near the protected areas of Itremo, Ibity and Ankafobe, to boost rangeland productivity and trial management methods which will support key forage grasses and improve livestock nutrition. A severe nitrogen deficiency compounded by extremely acidic soil conditions and low phosphorus is observed across the three sites. The lowest grazing capacity of an estimated 0.7 livestock …


Harvesting Site Influenced The Concentration Level Of Nitrogen And Mineral Status Of Woody Species In Semi-Arid Areas Of South Africa, K. E. Ravhuhali, H. S. Mudau, H. K. Mokoboki, B. Moyo, L. E. Motsei Feb 2024

Harvesting Site Influenced The Concentration Level Of Nitrogen And Mineral Status Of Woody Species In Semi-Arid Areas Of South Africa, K. E. Ravhuhali, H. S. Mudau, H. K. Mokoboki, B. Moyo, L. E. Motsei

IGC Proceedings (1977-2023)

Feed shortages in semi-arid areas cause a major set-back for livestock production. An understanding of the nutritive value of woody species in most parts of savanna regions can be vital to predicting what these species can offer for livestock productivity. The study assessed the variation in nitrogen and mineral concentration of leaves of woody species as influenced by harvesting site in South Africa. The study sites were communal areas in Limpopo and North West provinces. A total of 52 browse species were selected and used for this study. All statistical tests showed that there was a significant effect of species …


Effects Of Concentrate Supplementation During Summer On Animal Performance And Heat Stress Of Angus Steers Grazing Native Grasslands In Uruguay, P. Rovira, P. Lorenzo Feb 2024

Effects Of Concentrate Supplementation During Summer On Animal Performance And Heat Stress Of Angus Steers Grazing Native Grasslands In Uruguay, P. Rovira, P. Lorenzo

IGC Proceedings (1977-2023)

Research in temperate grasslands has addressed livestock supplementation (SUPL) mainly during winter, but more studies are needed on the impact of SUPL during summer where heat stress (HS) conditions may occur. The objective of this study was to evaluate the effects of summer SUPL on average daily gain (ADG), respiratory rate (RR), and body temperature (BT) of steers grazing native grasslands (60% TDN, 7.3% CP) in Uruguay (33°14'S, 54°15'W). Eighteen 15-month-old Angus steers (285±11 kg) were randomly assigned to 6 groups (2 treatments x 3 replicates) with free access to shade and water on a continuous stocking system (1.5 steer/ha) …


The Effects Of Grazing Cover Crops On Animal Performance And Soybean Production, J. Brett Rushing, Rocky Lemus, J. G. Maples, J. C. Lyles Feb 2024

The Effects Of Grazing Cover Crops On Animal Performance And Soybean Production, J. Brett Rushing, Rocky Lemus, J. G. Maples, J. C. Lyles

IGC Proceedings (1977-2023)

Grazing cover crops has the potential to offset costs incurred with cover crop establishment, thus incentivizing management adoption. Information regarding cover crop species in combination with grazing and their subsequent effects on soybean production is limited. A field trial was conducted in Newton, MS from 2019 to 2021 to assess these effects. Cover crop treatments included oats (O), O + crimson clover (OC), and OC + radish (OCR) were applied in a randomized complete block design with three replications. Cover crops differed in nutritive analysis; O had significantly lower mean CP, but greater total daily nutrients (TDN). Weaned beef steers …


The Milk Quality Of Dairy Cows As Influenced By Months And Grassland Regions In The Tropical Country, T. T. Nguyen, T. N. T. Phan Feb 2024

The Milk Quality Of Dairy Cows As Influenced By Months And Grassland Regions In The Tropical Country, T. T. Nguyen, T. N. T. Phan

IGC Proceedings (1977-2023)

The objective of the study was to evaluate the milk yield and quality of dairy cows across periods of year and grassland regions in the tropical country, Vietnam. The milk data were collected from October 2021 to March 2022 at three farms (Farm one in Gialai Province, Farm two and three in Ho Chi Minh City, Vietnam). Each Farm used the different software to manage the milk yield and quality, including SCR DataFlow II, Afifarm, and Epacific management software. The milk properties of freezing point (FP), total solid (TS), fatness, solids-not-fat (SNF), protein, and lactose were analyzed in lab. The …


Design And Management Of Saltbush-Based Forage Systems To Improve Productivity And Reproductive Performance Of Sheep, H. C. Norman, M. G. Wilmot, D. G. Masters, D. Blache, S. K. Maloney, S. N. Hancock Feb 2024

Design And Management Of Saltbush-Based Forage Systems To Improve Productivity And Reproductive Performance Of Sheep, H. C. Norman, M. G. Wilmot, D. G. Masters, D. Blache, S. K. Maloney, S. N. Hancock

IGC Proceedings (1977-2023)

There is evidence that effective shelter can significantly improve lamb survival, but the majority of Australian studies have occurred in small paddocks where the ewes had no choice but to use shelter. In mixed farming systems with large open paddocks, it is unclear if ewes will choose to use shelter for lambing. Our multidisciplinary collaboration examines the use of woody shrubs as an opportunity to improve the survival of twin lambs. In a series of large experiments on commercial farms, we will evaluate the impact of different shrub planting configurations, orientations, and densities on microclimates at the sub-paddock scale. Twin-bearing …


Environmental Co-Benefits Of Improved Forages In Smallholder Dairy Systems Of Kenya, A. Notenbaert, S. Mwendia, S. Burkart, P. Karimi, E. Mwema Feb 2024

Environmental Co-Benefits Of Improved Forages In Smallholder Dairy Systems Of Kenya, A. Notenbaert, S. Mwendia, S. Burkart, P. Karimi, E. Mwema

IGC Proceedings (1977-2023)

Livestock play a major role across Kenya, especially in smallholder mixed farms through provision of household nutrition and income through milk and meat. Equally, fertilization of cropland benefits from livestock manure, and livestock often act as insurance and saving. Despite the opportunities and benefits livestock production presents, livestock systems are also key drivers of environmental degradation, including increased nutrient loads, GHG emissions, water use, grassland degradation and land-use conversion. Low livestock productivity, largely due to use of low-quality crop residues and natural grasses often not endowed with nutrients key for animal performance, limits the potential positive contributions of livestock and …


Theobroma Cacao Pod Silage Diets; Effect On Mineral And Anti-Nutrients Utilization By Goats, O. B. Omotoso, Adebowale N. Fajemisin, J. A. Alokan Feb 2024

Theobroma Cacao Pod Silage Diets; Effect On Mineral And Anti-Nutrients Utilization By Goats, O. B. Omotoso, Adebowale N. Fajemisin, J. A. Alokan

IGC Proceedings (1977-2023)

A 63-day study was conducted to evaluate the mineral and anti-nutrients utilization and weight gain by west African dwarf goats fed Theobroma cacao pod silage diets. Cocoa pod husk used was collected, crushed to 2 cm particle size, divided into 4 equal portions, and ensiled differently with synthetic and non-synthetic fertilizer for 28 days under anaerobic conditions to increase the nutrients. Thereafter the ensiled products were dried and incorporated with other convectional feed ingredients at fixed amount to make four diets to feed twenty-four goats (six goats per treatment). Nutrient, mineral and anti-nutrient composition were assayed; sex effect on intake …


Feeds And Forages Intervention Strategies For Improved Livestock Nutrition And Productivity In The Northwest Highlands Of Vietnam, M. Atieno, T. B. N. Trần, V. T. Bùi, T. T. Mai, A. Duncan, S. Douxchamps, M. Peters Feb 2024

Feeds And Forages Intervention Strategies For Improved Livestock Nutrition And Productivity In The Northwest Highlands Of Vietnam, M. Atieno, T. B. N. Trần, V. T. Bùi, T. T. Mai, A. Duncan, S. Douxchamps, M. Peters

IGC Proceedings (1977-2023)

Livestock production in Vietnam is critical for livelihoods particularly for ethnic minorities in the Northwest Highlands (NWH). Improved livestock management and productivity can be achieved through better feed management and increased cultivation of improved forages, to meet animal nutrition demand. This study aimed at assessing feed intervention strategies to address context-specific feed-related challenges, mainly winter feed shortage in Mai Son district, Son La province, Vietnam. Feed interventions included promotion of improved forages (grasses and legumes) and capacity building on animal nutrition techniques including feed preservation, feed mix and feeding regimes for cattle and pigs. Willing farmers selected from a list …


Creating An Interactive Guide To Support Health Disparities Competency, Lauren E. Robinson, Stephanie Henderson, Cayla M. Robinson, Rebecca J. Morgan, Beth Reeder Feb 2024

Creating An Interactive Guide To Support Health Disparities Competency, Lauren E. Robinson, Stephanie Henderson, Cayla M. Robinson, Rebecca J. Morgan, Beth Reeder

2024 R&I Day

Authors share their educational resource developed for the health sciences, that guides users in awareness of health disparities, vulnerable populations, and social determinants of health, directing them to specific guidance and resources available through the library.


Physiological Impact Of Ergot Alkaloid Consumption In Ruminant Livestock, J. L. Klotz, S. K. Duckett, D. L. Harmon Feb 2024

Physiological Impact Of Ergot Alkaloid Consumption In Ruminant Livestock, J. L. Klotz, S. K. Duckett, D. L. Harmon

IGC Proceedings (1977-2023)

Ergot alkaloids in feeds and forages are a worldwide concern. Consumption of ergot alkaloids by ruminant livestock can range from extreme cases that threaten the life of the animal to more frequent and chronic outcomes where livestock productivity is decreased. Consumption of ergot alkaloids alters ruminant physiology such that it outwardly manifests in lower animal intake and gain, decreased reproductive efficiency, and a compromised circulatory system. This talk will cover current research that is improving our understanding of how ergot alkaloids alter cell and tissue physiology that results in the compromised growth and reproduction observed at the whole animal level.


Winter Performance Of North American Bos Grunniens Offered Hay Harvested From Different Forage Species, Jeff Lehmkuhler, G. Dike, M. Mccarty Feb 2024

Winter Performance Of North American Bos Grunniens Offered Hay Harvested From Different Forage Species, Jeff Lehmkuhler, G. Dike, M. Mccarty

IGC Proceedings (1977-2023)

Bos grunniens or the domesticated yak was brought to North America in the late 1800’s and early 1900’s. In Asia, yaks have been observed to lose 25% or more of their body weight over the winter in the high mountain altitudes. Little research has been conducted with the domesticated yak and their nutritional needs. Maintaining positive weight change during the winter is expected to improve the profitability and viability of yak production systems in North America. An on-farm study was conducted near Wellington, KY, USA to investigate the winter performance of yaks and hay type. Four outdoor grass lots approximate …


Tannins In Perennial Legume And Forb Functional Forages, J. Macadam, Juan Villalba, S. Lagrange, E. Stewart, S. Hunt, J. Legako, R. Christensen, R. L. Pitcher, A. Bolletta Feb 2024

Tannins In Perennial Legume And Forb Functional Forages, J. Macadam, Juan Villalba, S. Lagrange, E. Stewart, S. Hunt, J. Legako, R. Christensen, R. L. Pitcher, A. Bolletta

IGC Proceedings (1977-2023)

Feed is the greatest input cost for cattle producers. The studies summarized here employed non-bloating, tannin-containing irrigated perennial legume pastures or hay of legumes or a hydrolysable tannin-containing forb that were grown in the Mountain West USA, with non-tannin legume, grass, or feedlot treatments for comparison. Cattle grazing legume pastures or fed legume or forb hays had greater intake, gain and nitrogen retention, and in some cases, reduced enteric methane emissions compared with grass pastures or hay, and methane emissions were not different from feedlot-fed cattle.


Opportunities Of Grazing Personality Genetics For Steep And Rugged Rangelands, Moreno Garcia, T. M. R. Maxwell, R. Dynes, H. Zhou, J. Hickford Feb 2024

Opportunities Of Grazing Personality Genetics For Steep And Rugged Rangelands, Moreno Garcia, T. M. R. Maxwell, R. Dynes, H. Zhou, J. Hickford

IGC Proceedings (1977-2023)

Globally, extensive pastoral grazing systems are facing multiple pressures, including to address emerging public concerns about environmental impact and animal well-being. This may require new regulatory constraints to be met, while maintaining the economic viability of the systems. One novel approach to addressing these challenges is to capitalize on naturally occurring differences in livestock behaviors, specifically differences in grazing personalities, to assist the production systems deliver more effective and responsible use of rangelands. Herbivores may exhibit consistent grazing behaviors over time and across spatial contexts, which differ among individuals and between groups leading to distinctive grazing patterns known as grazing …