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Guidelines For Optimal Use Of Near Infrared Spectroscopy (Nirs) With Sample Preparation And Presentation Across Instrument Platforms, D. W. Mcintosh Feb 2024

Guidelines For Optimal Use Of Near Infrared Spectroscopy (Nirs) With Sample Preparation And Presentation Across Instrument Platforms, D. W. Mcintosh

IGC Proceedings (1977-2023)

Guidelines for optimal use of near infrared spectroscopy (NIRS) with sample preparation and presentation across instrument platforms will cover methods and resources specifically for NIRS analysis. Recommendations for sample preprocessing and scanning required to ensure compatibility across calibrations will be highlighted. Proper calibration determinations, monitoring, and performance will be demonstrated to create a baseline for correct use. Additional materials about the use and reporting of nutritive content predictions for publication will be discussed. Goals of this topic session are to develop an understanding of the basics of NIRS technology and provide the basics to what a laboratory is required to …


Transitioning To Multiple-Use Polyculture Grassland-Derived Bioenergy Feedstock Systems, J. P. Muir, J. L. Foster, A. Falk, S. Weiss, W. D. Pitman, W. Alsion, H. D. Naumann, J. R. Bow, C. Shadrock, E. Osei, O. Lasater Feb 2024

Transitioning To Multiple-Use Polyculture Grassland-Derived Bioenergy Feedstock Systems, J. P. Muir, J. L. Foster, A. Falk, S. Weiss, W. D. Pitman, W. Alsion, H. D. Naumann, J. R. Bow, C. Shadrock, E. Osei, O. Lasater

IGC Proceedings (1977-2023)

We argue that research and development of grassland-derived bioenergy feedstock (GBF) has focused unduly on dedicated monospecific biomass systems to the detriment of more stable multiple-use multispecies grasslands. This has retarded GBF adoption as a viable, sustainable contribution to renewable energy production in North America. We hypothesize that focusing on multiple-use GBFs will foster greater feedstock availability for nascent renewable energy generation while minimizing financial risk to grassland husbandry during market transitions from current grazing systems to more flexible business models. Our hypothesis is that source and demand are more likely to develop simultaneously under less risky multiple-use grassland management. …


Participatory Evaluation Of Urochloa (Brachiaria) Grasses In The Cool Highlands Of Central Kenya, Elkana Nyambati, W. Ayako, S. K. Mailu Feb 2024

Participatory Evaluation Of Urochloa (Brachiaria) Grasses In The Cool Highlands Of Central Kenya, Elkana Nyambati, W. Ayako, S. K. Mailu

IGC Proceedings (1977-2023)

Grasslands are increasingly threatened by over exploitation, degradation and climate change that has undermined their productive capacity, leading led to inadequate quantity and quality feed. Urochloa grass, a native of eastern Africa has been widely improved and adapted as livestock forage. A farmer participatory study was conducted to evaluate productivity of eight Urochloa grasses (Urochloa brizantha cv. Marandu, U. brizantha cv. Xareas, U. brizantha cv. Piata, U. brizantha cv. MG4, U. decumbens cv. Basilisk, U. humidicola cv. Humidicola, U. humidicola cv. Llanero and Urochloa hybrid Mulato II) compared to controls of Pennisetum purpureum (Napier grass cv. Kakamega 1 …


Sunn Hemp As An Alternative Forage In The Texas High Plains Region, S. A. O’Shaughnessy, H. M. Mosqueda, D. K. Brauer Feb 2024

Sunn Hemp As An Alternative Forage In The Texas High Plains Region, S. A. O’Shaughnessy, H. M. Mosqueda, D. K. Brauer

IGC Proceedings (1977-2023)

Forage production in the Texas High Plains, a semi-arid region, is critical to sustain the local cattle industry. However, the main source of water for irrigation is the highly depleted Ogallala Aquifer, making forage crop water productivity (CWP) of high importance. In this one-year study, three types of forages were cultivated under deficit irrigation treatments of 80% and 50% of full crop water use. The forages were: a non-brown midrib forage sorghum; a legume, sunn hemp; and a sorghum/sunn hemp mix. The experiment was conducted in Bushland, Texas in 2019. Treatment plots were arranged in a split plot design with …


Legumes As A Biological Tool To Address The Sustainability Of Ruminant Production Systems, H. Sheridan, M. B. Lynch Feb 2024

Legumes As A Biological Tool To Address The Sustainability Of Ruminant Production Systems, H. Sheridan, M. B. Lynch

IGC Proceedings (1977-2023)

Growing public concern regarding accelerated rates of climate change, the depletion and degradation of natural resources such as biodiversity water and soils, coupled with policy commitments to address these challenges, are placing increasing pressures to enhance sustainability metrics associated with agriculture in general, and ruminant production systems in particular. At EU and indeed global scale, there has probably never before been so many potentially conflicting challenges for agriculture. On one hand, agricultural systems need to produce more, to feed the increasing global human population, while at the same time being much less reliant on economically and environmentally costly chemical inputs …


Forage And Grazinglands Extension: Training The Next Generation Of Specialists, D. W. Hancock Feb 2024

Forage And Grazinglands Extension: Training The Next Generation Of Specialists, D. W. Hancock

IGC Proceedings (1977-2023)

This invited talk provides a perspective on what is required to excel in the role as an Extension Specialist. In the USA, most such Extension Specialists are tenure-track faculty, and have state-wide or even multi-state responsibilities. Advice is given on how to balance the high expectations of such a faculty appointment while providing appropriate recommendations to farmers/ranchers and service providers in the forage and grazinglands industry. This talk will offer one former Extension Specialist’s perspective on the skills, experience, and persona required to begin a successful career as a Forage and Grazinglands Extension Specialist. Additional exposition will be given on …


Spring Grass Availability And Silage Supplementation Impact On Dry Matter Intake And Enteric Methane Emissions In Grazing Dairy Cattle, M. Kennedy, S. Walsh, T. M. Boland, M. Egan Feb 2024

Spring Grass Availability And Silage Supplementation Impact On Dry Matter Intake And Enteric Methane Emissions In Grazing Dairy Cattle, M. Kennedy, S. Walsh, T. M. Boland, M. Egan

IGC Proceedings (1977-2023)

Enteric methane (CH4) emissions were measured in forty spring calving cows offered one of two (n=20) contrasting diets (High Grass; HG, Low Grass; LG) over 10 weeks in early lactation (8th February – 18th April 2021). All cows were blocked for breed and parity and balanced on milk production, economic breeding index (EBI), bodyweight and body condition score and randomly allocated to treatments. The HG grazing treatment cows were offered their full daily nutrient requirement from grazed grass and concentrate with no silage supplementation. The LG grazing treatment cows were offered a restricted (~60%) amount of their daily nutrient requirement …


Spatio-Temporal Dynamics Of The Dual-Purpose Cattle Value Chain In The Colombian Amazonas, A. Leinert, S. Burkart Feb 2024

Spatio-Temporal Dynamics Of The Dual-Purpose Cattle Value Chain In The Colombian Amazonas, A. Leinert, S. Burkart

IGC Proceedings (1977-2023)

The cattle sector plays an important role in the economy of the Caquetá department, located in the Colombian Amazon. However, the predominantly extensive production system is associated with low productivity and negative environmental impacts, such as land degradation, greenhouse gas emissions, and deforestation. Efforts to introduce improved practices (e.g., improved forages or silvopastoral systems) have been made over the last decades, but adoption rates remain low. Though several studies have analyzed the cattle value chain (VC) to enhance the understanding of adoption barriers, the heterogeneity of farmers has been considered only marginally when trying to explain their adoption behavior. To …


Predicting Forage Provision Of Grasslands Across Climate Zones By Hyperspectral Measurements, F. A. Männer, J. Muro, J. Ferner, S. Schmidtlein, A. Linstädter Feb 2024

Predicting Forage Provision Of Grasslands Across Climate Zones By Hyperspectral Measurements, F. A. Männer, J. Muro, J. Ferner, S. Schmidtlein, A. Linstädter

IGC Proceedings (1977-2023)

The potential of grasslands’ fodder production is a crucial management measure, while its quantification is still laborious and costly. Remote sensing technologies, such as hyperspectral field measurements, enable fast and non-destructive estimation. However, such methods are still limited in transferability to other locations or climatic conditions. With this study, we aim to predict forage nutritive value, quantity, and energy yield from hyperspectral canopy reflections of grasslands across three climate zones. We took hyperspectral measurements with a field spectrometer from grassland canopies in temperate, tropical and semi-arid grasslands, and analyzed corresponding biomass samples for their quantity (BM), metabolizable energy content (ME) …


How ‘Pasture For Life (Championing 100% Pasture-Fed Ruminant Products) Has Taken Off In The Uk – From The Bottom Up!, S. J. Gregson Feb 2024

How ‘Pasture For Life (Championing 100% Pasture-Fed Ruminant Products) Has Taken Off In The Uk – From The Bottom Up!, S. J. Gregson

IGC Proceedings (1977-2023)

Ten years ago Pasture for Life (PfL) was a collection of around 50 UK farmers who were producing high quality ruminant food products wholly from pasture. They were regenerative farming pioneers and PfL was run by volunteers and funded through various grants. In the past two to three years, membership has increased significantly, nearing 1,000 with almost 150 certified Pasture for Life (100% grass-fed). The organisation is now run by a paid executive and is bursting with energy, conversation, and learning. Members are mainly farmers, but also include butchers, chefs, vets, academics and consumers – all keen to champion the …


Rotational Stocking With Virtual Fences: Effects On Grassland Diet Digestibility, Livestock Performance And Stress Levels Of Heifers, N. A. Grinnell, D. Hamidi, M. Komainda, F. Reisch, J. Horn, I. Traulsen, R. Palme, J. Isselstein Feb 2024

Rotational Stocking With Virtual Fences: Effects On Grassland Diet Digestibility, Livestock Performance And Stress Levels Of Heifers, N. A. Grinnell, D. Hamidi, M. Komainda, F. Reisch, J. Horn, I. Traulsen, R. Palme, J. Isselstein

IGC Proceedings (1977-2023)

Virtual fencing is an innovative technology for simplified, less laborious dynamic grazing management and remote animal monitoring. The effect of this novel technology on animal welfare is still a matter of debate. Previous research suggests no differences in stress experience responses of cattle between the two fencing systems on continuously stocked pastures. This study investigated differences in diet organic matter digestibility, livestock performance and fecal cortisol metabolite concentrations of heifers on pastures in a rotational grazing system, fenced with a virtual fence (Nofence, Batnfjordsøra Norway) compared to heifers fenced with a traditional electric wire fence. The study was conducted in …


Herbaceous Tropical Legume Integration Into Small-Holder Crop-Livestock Systems In Eastern Indonesia: Results Of 10-Years Of Multi-Disciplinary Systems Research, L. W. Bell, D. Mayberry, K. Cox, S. Traill, J. Nulik, E. J. Hosang, D. Kana Hau Feb 2024

Herbaceous Tropical Legume Integration Into Small-Holder Crop-Livestock Systems In Eastern Indonesia: Results Of 10-Years Of Multi-Disciplinary Systems Research, L. W. Bell, D. Mayberry, K. Cox, S. Traill, J. Nulik, E. J. Hosang, D. Kana Hau

IGC Proceedings (1977-2023)

Integration a forage legume into crop-livestock systems of Eastern Indonesia was tested to establish the capacity to improve nitrogen supply and yields of staple cereal crops (maize and rice) and allow for intensification of beef production to ultimately increase farm income and alleviate rural poverty in the region. Species evaluation sites across a diversity of environments showed Clitoria ternatea (butterfly pea) to be the most resilient and adaptable forage legume for use in association with cropping systems. Crop rotation experiments demonstrated that legumes grown in rotation with maize or rice can increase grain yields by 50% where legume was cut …


Drone And Digital Camera Imagery Estimate C3 And C4 Grass Ratios In Pastures, J. A. Bush, C. D. Teutsch, S. R. Smith, J. C. Henning Feb 2024

Drone And Digital Camera Imagery Estimate C3 And C4 Grass Ratios In Pastures, J. A. Bush, C. D. Teutsch, S. R. Smith, J. C. Henning

IGC Proceedings (1977-2023)

The following study investigates the accuracy and practicality of exploiting the color dichotomy present between C3 and C4 grass species to estimate their respective proportions from drone or camera captured imagery. Understanding the proportions of C3 and C4 grasses in pastures is vital to sound decision making for livestock production. The ability to monitor these proportions remotely will also allow for large scale monitoring as well as detection of changes in botanical composition over time and in response to weather events, management, or climate change. A free green canopy cover (GCC) analyzing software, Canopeo, was used to quantify green plants …


The Nutritional Dynamic Is Key For Use Optimal Forage And Increase Of Meat Production, Bernal-Flores Alvaro, E. A. Pizarro, Quero Carillo Raymundo, Pérez Rodríguez Paulino Feb 2024

The Nutritional Dynamic Is Key For Use Optimal Forage And Increase Of Meat Production, Bernal-Flores Alvaro, E. A. Pizarro, Quero Carillo Raymundo, Pérez Rodríguez Paulino

IGC Proceedings (1977-2023)

The nutritional content grass could be considered a key tool to determine the optimal forage use, based on the requirements of the cattle to maximize production and achieve a highly productive and profitable livestock. The degradation protein complex associated with autophagy plant determines to a great extent the protein content of the grass over time, being priority found the value nutritional required for the livestock for intensification the animal production. The crude protein requirements (CP, 13.5%) to cover nutritional needs in cattle, was established between 28±1 y 30±1 for the dry period and wet period respectively in Camello® hybrid grass. …


Genetic Modification – Applications For Forage And Grassland Production Systems, J. R. Caradus Feb 2024

Genetic Modification – Applications For Forage And Grassland Production Systems, J. R. Caradus

IGC Proceedings (1977-2023)

Genetic modification has been extensively used in crops for 25 years but has rarely been a technology used to advance trait expression in forage and grassland species. The exceptions are the use of herbicide tolerance and low lignin traits in alfalfa which are currently commercially available. In crop species genetic modification has been a valuable option for delivering improved economic and environmental outcomes through providing solutions for many of the challenges facing mankind. There are a many beneficial characteristics that genetic modification has the potential to provide in forage and grassland species. Managing these in the environment and understanding consumer …


Stoloniferous Forage Legumes For Sustainable Mixed Pastures In The Tropics, R. M. Boddey, C De P Rezende, J. Marques Pereira, C. A. Dos Santos, Animal Husbandry Station Of The Extreme South Of Bahia, Brazil, I. O. Ramalho, R. M. Macedo, B. C. G. Homem, D. R. Casagrande, S. Urquiaga, B. J. R. Alves Feb 2024

Stoloniferous Forage Legumes For Sustainable Mixed Pastures In The Tropics, R. M. Boddey, C De P Rezende, J. Marques Pereira, C. A. Dos Santos, Animal Husbandry Station Of The Extreme South Of Bahia, Brazil, I. O. Ramalho, R. M. Macedo, B. C. G. Homem, D. R. Casagrande, S. Urquiaga, B. J. R. Alves

IGC Proceedings (1977-2023)

Brazil has over 80 million ha of tropical pastures formed with species of Brachiaria (syn. Urochloa), mostly grazed by beef cattle and with low fertilizer inputs, especially nitrogen. Recent investigations by our team show that stoloniferous legumes such as forage peanut (Arachis pintoi) and Desmodium ovalifolium are able to persist in mixed swards with Brachiaria brizantha (cv. Marandu) if grazing height is regulated (maximum 30 cm) so that radiation can reach the soil surface allowing stolons to take root. These legumes can persist in mixed pastures and produce milk or animal weight gains similar to the application …


Public Policies For The Development Of A Sustainable, Forage-Based Cattle Sector In Colombia, Argentina, And Costa Rica: A Comparative Analysis, S. Burkart, M. Diaz, Moreno Lerma Feb 2024

Public Policies For The Development Of A Sustainable, Forage-Based Cattle Sector In Colombia, Argentina, And Costa Rica: A Comparative Analysis, S. Burkart, M. Diaz, Moreno Lerma

IGC Proceedings (1977-2023)

Projected increases in global food demand highlight the importance of Latin America as one of the major future food suppliers, particularly regarding animal-source foods such as beef or milk. Despite the importance of the cattle sector for the region, its negative environmental impacts are numerous and the shift towards sustainability is perceived as slow and uncoordinated. This study aims to identify achievements and difficulties in the implementation of public policies for a sustainable cattle sector in Colombia, Argentina, and Costa Rica, for which policies focused on the use of silvo-pastoral systems and forage-based solutions are prioritized. Based on the review …


Applying The Concepts Of Animal Husbandry To Human Health, John Madany Feb 2024

Applying The Concepts Of Animal Husbandry To Human Health, John Madany

IGC Proceedings (1977-2023)

Instead of a new paradigm, we need to modify an old paradigm. We must focus on restoring soil health and reviving human health. Ruminants can be used to heal the land and the people. Pastoralists, by managing ruminants, can preserve their own health while promoting soil health.


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 …


Pasture Production And Grazing System In Assist Project: Outcome And Replication Viability In Nigeria For Sustainable Ruminant Production, Okanlade A. Lawal-Adebowale, M. J. Rivero, J. Hunt, Sarah Morgan, Hannah Fleming, R. Pywell, Jonathan Storkey Feb 2024

Pasture Production And Grazing System In Assist Project: Outcome And Replication Viability In Nigeria For Sustainable Ruminant Production, Okanlade A. Lawal-Adebowale, M. J. Rivero, J. Hunt, Sarah Morgan, Hannah Fleming, R. Pywell, Jonathan Storkey

IGC Proceedings (1977-2023)

As important as pasture is to productive management of cattle, sheep and goats, intensive development of grassland for ruminant animals is rare in Nigeria largely due to no conscious effort at pasture cultivation in the country. Consequently, nomadic and free grazing systems remain a practice in the country, with resultant poor animal productivity and agro-related conflicts between ruminant keepers and crop farmers and/or agro-processors. The need to revert this situation underscored the exploration of the potential value of the innovative pasture production and grazing management system tested under the Achieving Sustainable Agricultural Systems (ASSIST) programmme in Rothamsted Research, United Kingdom, …


Effects Of Incorporation Of Sainfoin (Onobrychis Viciafolia Scop.) With Cool Season Grasses On In Vitro Digestibility And Ch4 Emission, H. P. Poudel, Y. Wang, T. Mcallister, Z. J. Zu, B. Eisenreich, S. Acharya Feb 2024

Effects Of Incorporation Of Sainfoin (Onobrychis Viciafolia Scop.) With Cool Season Grasses On In Vitro Digestibility And Ch4 Emission, H. P. Poudel, Y. Wang, T. Mcallister, Z. J. Zu, B. Eisenreich, S. Acharya

IGC Proceedings (1977-2023)

Sainfoin (Onobrychis viciafolia Scop.) is an important non-bloating perennial leguminous forage. The tannins in sainfoin alter protein metabolism in the rumen and have been implicated in altering both nitrous oxide and methane emissions. However, the effect of sainfoin when mixed with cool-season forages is unknown. Therefore, in this study, we evaluated the in-vitro fermentation of sainfoin hay mixed with two other perennial cool-season forages, meadow bromegrass and orchardgrass at five ratios (0:100, 25:75, 50:50, 75:50, and 100:0). Data on dry matter disappearance (DMD), neutral detergent fiber disappearance (NDFD), gas production (GP) methane (CH4) emissions, and ammonia production were collected …


Condensed Tannins And Total Phenols In Stylosanthes Spp., M. V. F. Santos, J. P. Muir, O. F. Oliveira, I. M. Macêdo, W. P. S. Diniz, M. V. Cunha, José C. B. Dubeux Jr., M. A. Lira, R. L. C. Ferrreira Feb 2024

Condensed Tannins And Total Phenols In Stylosanthes Spp., M. V. F. Santos, J. P. Muir, O. F. Oliveira, I. M. Macêdo, W. P. S. Diniz, M. V. Cunha, José C. B. Dubeux Jr., M. A. Lira, R. L. C. Ferrreira

IGC Proceedings (1977-2023)

Rangelands, such as the species of the genus Stylosanthes, are plants highly selected by animals and represent an important forage source for livestock in the Northeast region of Brazil. Plants of this genus are naturally occurring in several places in Brazil and other semi-arid areas. The variability of condensed tannins and total phenols in different Stylosanthes accessions is still poorly characterized. Based on that, the objective of this study was to quantify the content of condensed tannins and total phenols of Stylosanthes accessions collected in different physiographic zones of the State of Pernambuco and cultivated in germplasm banks. The …


Forage Production Is Not Changed In Dwarf Elephantgrass Swards Managed In A Wide Range Of Pre-Grazing Canopy Heights, V. Y. M. Moncada, K. C. Vargas, D. A. Barreta, D. S. Comassetto, F. C. S. Gislon, E. R. Ribeiro, D. Moraes, A. F. Sbrissa Feb 2024

Forage Production Is Not Changed In Dwarf Elephantgrass Swards Managed In A Wide Range Of Pre-Grazing Canopy Heights, V. Y. M. Moncada, K. C. Vargas, D. A. Barreta, D. S. Comassetto, F. C. S. Gislon, E. R. Ribeiro, D. Moraes, A. F. Sbrissa

IGC Proceedings (1977-2023)

Height corresponding to the critical leaf area index (LAI) has been successfully used to define pre-grazing management targets in pastures subjected to intermittent stocking. However, studies on short/stoloniferous grasses have demonstrated that it is possible to manage pastures at heights below those corresponding to the critical LAI (with a threshold grazing height of approximately 65% of those corresponding to the critical LAI) and achieve a similar forage yield, provided that the severity of defoliation does not exceed 50 percent of the pre-grazing height. In this study, we hypothesized that in tall tussock grasses (such as elephant grass), the amplitude of …


Brix As An Indicator Of Sugar Content And Nutritive Value In Alfalfa And Orchardgrass Herbage, Eric D. Billman, K. Soder, J. Horst, K. Balk, A. Hafla Feb 2024

Brix As An Indicator Of Sugar Content And Nutritive Value In Alfalfa And Orchardgrass Herbage, Eric D. Billman, K. Soder, J. Horst, K. Balk, A. Hafla

IGC Proceedings (1977-2023)

Brix, a measurement of total dissolved solids in solution, has been used by forage producers to provide real-time estimates of energy content of fresh herbage. However, its efficacy has never been validated in herbage through wet chemistry testing and comparisons with other nutritive value parameters. This study compared and correlated Brix measurements with sugar concentrations and common nutritive value parameters relating to protein, fiber, and energy to determine the viability of using Brix to predict when to graze or harvest fresh herbage. Brix measurements were collected monthly on fresh herbage samples of alfalfa (Medicago sativa L.) and orchardgrass (Dactylis …


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 …


Impacts Of Forage Cropping Decisions On Feed-Flows In Cool- Temperate Grazing Systems, D. R. Stevens, M. J. Casey Feb 2024

Impacts Of Forage Cropping Decisions On Feed-Flows In Cool- Temperate Grazing Systems, D. R. Stevens, M. J. Casey

IGC Proceedings (1977-2023)

Intensive cool-temperate grasslands often rely on adding forage crops to help supply feed when pasture growth is limited by cool temperatures and low sunlight. We tested the impacts of using single- or multi-graze crops to alter feed supply in either summer/autumn or winter on productivity in red deer farming systems in a cool-temperate environment. The choice of single-graze or multi-graze crops to provide forage in deer grazing systems had an impact on the feed flows and the amount of pasture available, with multi-graze crops supplying more feed during the dry summer months while single-graze crops supplying more feed during the …


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 …


Diurnal Variation In Forage Nutrient Composition And Metabolic Parameters Of Horses Grazing Warm-Season, Perennial Grass-Legume Mixed Pastures, A. C. Vasco, J. Dubeux, L. Sollenberger, M. Wallau, E. Santos, J. Lance, L. Warren, C. Wickens Feb 2024

Diurnal Variation In Forage Nutrient Composition And Metabolic Parameters Of Horses Grazing Warm-Season, Perennial Grass-Legume Mixed Pastures, A. C. Vasco, J. Dubeux, L. Sollenberger, M. Wallau, E. Santos, J. Lance, L. Warren, C. Wickens

IGC Proceedings (1977-2023)

Although warm-season, grass-legume mixed pastures have improved nutritive value and may reduce negative environmental impacts relative to nitrogen-fertilized grass monocultures, no study has been done to evaluate their effect on diurnal variation of non-structural carbohydrates (NSC) and other nutrients, and on the metabolic responses observed in horses’ blood and fecal samples. This 2-yr study aimed to investigate the circadian variation in nutrient composition and the fecal and blood metabolic responses in horses grazing these pastures. Forage, fecal, and blood samples were collected every 28 days at 0600, 1200, 1800, and 0000 h, in two years, for measurement of diurnal variation …