Agricultural Science Commons^™

Relationships Between Pasture Management Inputs And Pasture Consumption Rates In Non‐Irrigateddairy Systems In South‐Eastern Australia, J. Tharmaraj, D. F. Chapman, J. Hill

IGC Proceedings (1977-2023)

No abstract provided.

Sustainable And Profitable Grazing Management In A Highly Variable Environment‐Evidence And Insights From A Long Term Grazing Trial In Northern Australia, Peter O’Reagain, John Bushell

IGC Proceedings (1977-2023)

No abstract provided.

Patch Selection By Cattle Can Be Quantified Using Satellite Imagery And Gps In Extensive, Semi-Arid Savannas, Christopher Holloway, Peter O'Reagain, Nigel Tomkins

IGC Proceedings (1977-2023)

No abstract provided.

Plant Functional Groups Composition Associated To Management Practices In Temperate Natural Grasslands (Flooding Pampa, Argentina), Mónica G. Agnusdei, O. Fernández, M. R. Colabelli, P. Vázquez, O. Vignolio, R. C. Fernández Grecco

IGC Proceedings (1977-2023)

No abstract provided.

Effect Of Lambs' Early Weaning On Their Growth Performance And The Pasture's Stocking Rate, Liping Zhang, D. Fang, J. F. Xu, J. P. Wu, Z. M. Lei

IGC Proceedings (1977-2023)

No abstract provided.

Sward Characteristics Of Dairy Cows Grazed At Two Stocking Rates In Agro‐Pastoral Transitional Zone Of Northern China, Yonghong Shi, Jianguo Han

IGC Proceedings (1977-2023)

No abstract provided.

Trigger Points--Decision Tools To Mitigate Seasonal Climate Risk In Western New South Wales, Australia, Yohannes Alemseged, Ronald B. Hacker, W. J. Smith

IGC Proceedings (1977-2023)

No abstract provided.

Effect Of Horse Grazing Under Different Stocking Rates On The Selection Of Feeding Patches, G. Fleurance, Bertrand Dumont, Anne Farruggia, N. Edouard, Laurent Lanore

IGC Proceedings (1977-2023)

No abstract provided.

Effect On Artemisia Frigida Module Under Different Stocking Rates In The Desert Steppe, Inner Mongolia, S. Y. Jiao, G. D. Han, M. J. Wang, Z. W. Wang, C. L. Li, Z. H. Xue, X. H. Yang

IGC Proceedings (1977-2023)

No abstract provided.

Grassland Sustainability And Livestock Production In Taipusi Banner, Inner Mongolia, Y. Zheng, David R. Kemp, Z. Xu, R. Jones, T. Takahashi, Q. Tian, T. Xilin

IGC Proceedings (1977-2023)

No abstract provided.

Demonstration Farms To Improve Grassland And Household Incomes In Western China, Jing Wang, Mengli Zhao, David R. Kemp, Gemma Turnbull

IGC Proceedings (1977-2023)

Western China is the less developed area of China, of which about 3.31×10⁹ ha is grassland. The livelihoods 40 million people, the majority ethnic minorities, are supported by this grassland. To achieve balanced growth while reducing economic disparities is one of the major challenges that China faces to maintain both its current GDP growth rate and social stability. The development of demonstration farms is an efficient way to alleviate or ideally to solve this challenge. Recent studies conducted on the desert steppe in Inner Mongolia have shown, that under current conditions, stocking rates can be reduced to get both …

Identifying And Addressing Sustainable Pasture And Grazing Management Options For A Major Economic Sector–The North Australian Beef Industry, Neil D. Macleod, Joe C. Scanlan, Lester I. Pahl, Giselle L. Whish, Robyn A. Crowley

IGC Proceedings (1977-2023)

Sustainable use of the northern grazing lands is a long-standing issue for management and policy, heightened by projections of increased climatic variability, uncertainty on forage supplies, vegetation complexes, and weeds and diseases. Meat and Livestock Australia has supported a large study to explore sustainable grazing management strategies and increase the capacity of the sector to address climate change. Potential options were explored by bio-economic modeling of ‘representative’ beef enterprises defined by pastoralists and supported by regional research and extension specialists. Typical options include diversification, infrastructure, flexible stocking rates, wet season resting, and prescribed fire. Concurrent activities by another team included …

Grassland Rehabilitation Through Re-Designing Livestock Management Systems, Guodong Han, Zhongwu Wang, Zhiguo Li, Mengli Zhao, David R. Kemp, David L. Michalk, Kris M. Havstad

IGC Proceedings (1977-2023)

Grasslands are one of the most important land types supplying critical ecosystem services including feed for livestock grazing. They occupy ~54% of the world’s ice-free land surface. China contains the third largest area of grassland in the world, ~400 M ha, ~40% of China’s land surface. Chinese grasslands are severely degraded primarily due to overgrazing, which contributes to local poverty because of poor livestock production. To both recover the degraded grassland and to enhance the local herders’ income, a large farm-scale experiment was conducted in a desert steppe of Inner Mongolia, China from 2007 to 2012. We used a baseline …

Influence Of Stocking Rate, Grazing Season Length And Dairy Cow Genetic Strain On The Nitrogen Balance Of Grass Based Dairy Production Systems, Deirdre Hennessy, Willie Ryan, Laurence Shalloo

IGC Proceedings (1977-2023)

Stocking rate (SR), grazing season (GS) length and Holstein-Friesian (HF) strain can have a profound effect on the productivity of grass-based milk production systems. The optimum SR is that which gives the maximum sustainable economic output of product per unit area. Increasing SR increases output per ha, but also requires increased inputs of feed and fertilizer. Increasing the proportion of grazed grass utilized for milk production improves the economic sustainability of the system (Dillon et al. 2008). Nitrogen (N) use efficiency is one of the key drivers of environmentally and economically sustainable agricultural production systems. Achieving the optimum balance …

Root Decomposition Of Elephant Grass Pastures Grazed At Different Management Intensities, José C. B. Dubeux Jr., Hiran Marcelo Siqueira Da Silva, Maria Lúcia Silveira, Erinaldo Viana De Freitas, Mércia V. F. Dos Santos, Alexandre C. L. De Mello

IGC Proceedings (1977-2023)

Grazing management may alter chemical composition of plant components affecting nutrient cycling. Among pasture management tools, adjustment of stocking rate (SR) and N fertilization have potential to affect nutrient cycling in the grassland ecosystem (Dubeux et al. 2007). Excreta from grazing animal and litter are the two major pathways of nutrient return on grazed pastures (Thomas 1992). Fertilization and SR may alter these pathways by different forms. Increasing fertilization generally increases pasture net primary productivity. Stocking rate affects different pasture and animal responses. Regarding nutrient cycling, increasing SR will likely increase proportion of nutrient returned through excreta as opposed …

Animal Production Over Rice-Pasture Rotation System: Animal Performance, R. Cuadro, S. Luzardo, Fabio Montossi, A. Lavecchia

IGC Proceedings (1977-2023)

Fluctuations in commodity prices, determine the need to find strategies to stabilize production in farming systems. The rice - pastures rotation systems are a good example of this, where animal production takes place in the moments where rice is rotated with pastures (3 years rice and 2 years pastures). In this context, INIA has developed a technology adjusted to the east of the country, with the use of "summer tillage" to intensify livestock production through the incorporation of lambs fattening. These technologies, comercially validated with sheep-rice farming systems, can move the process of cattle backgrounding (males and females), but requires …

Beef Heifers Performance Under Continuous Grazing On Modified Grassland In Argentina Flooding Pampa, María L. Agnelli, Roberto O. Refi, Estrella M. Oyhamburu, Mario C. Ursino

IGC Proceedings (1977-2023)

The Salado river basin is the main beef cattle breeding region of Argentina. It is a flat flooding area with poor slopes (< 3%). Their soils are Natracuoles, Natraqualfes and Argiacuoles. The grasslands are predominately continuously grazed and with a set stocking rate cow – calf system. Stocking rate and grazing pressure are two core variables that directly affect animal production. Reduced animal performance is believed to be due to poor grazing management. During 2010, 2011 and 2012 an experiment on the effect of stocking rate on animal growth and body condition with Angus heifers continuously grazing annual winter grasses, was carried out. Previous studies have demonstrated the practicability of producing replacement females with this management (Carrillo 2001; Eirin et al. 2011; Agnelli et al. 2011) that involves mesothermic grasslands modification into self sown winter grasses by using glyphosate and other herbicides (Oyhamburu et al. 2000, Rodriguez and Jacobo 2010).

The aim of this study was to establish the stocking rate that optimizes beef rearing heifer’s performance for early mating.

Animal Performance And Productivity Of A New Cultivar Of Brachiaria Brizantha, Valéria P. B. Euclides, Denise B. Montagner, Cacilda B. Valle, Nayana N. Nantes

IGC Proceedings (1977-2023)

Brazil has the competitive advantage of a very dynamic and cost-effective animal production system on pastures over other countries. The pursuit of more productive forages that will result in higher quality beef at a lower cost is justified. As Brachiaria is the most important forage genus utilised in Brazil, an intense search for new cultivars amongst collected and introduced ecotypes from Africa is underway. Following agronomic evaluation of this material in plots, 8 Brachiaria ecotypes were pre-selected. As part of Embrapa`s process of cultivar development, B. brizantha cv. Xaraés, characterised by high productivity (liveweight gain/area), was released in 2003, followed …

Dry Matter Intake By Beef Steers On Piatã Palisadegrass (Brachiaria Brizantha Cv. Brs Piatã) Pasture, Denise B. Montagner, Valéria P. B. Euclides, Teresa C. M. Genro, Nayana N. Nantes

IGC Proceedings (1977-2023)

Beef production in Brazil is primarily based on tropical pastures and 85% of these pastures are Brachiaria brizantha cv. Marandu. Such a monoculture could prove disastrous if some pest or disease emerged. With the goal of further diversifying pastures and contributing to the sustainability of the pasture production system, B. brizantha cv. BRS Piatã was released by the Brazilian Agricultural Research Corporation (Embrapa). Little is known about the characteristics of this cultivar in relation to grazing management and plant-animal interactions. Dry matter (DM) intake by grazing animals is influenced by the structural characteristics of tropical grasses (Stobbs 1973, 1975), and …

Performance Of Nelore Cattle On Panicum Maximum Pastures In The Brazilian Cerrado, Giovana A. Maciel, Gustavo J. Braga, Roberto Guimarães Jr., Hélio A. De Araújo, Allan K. B. Ramos, Marcelo A. Carvalho, Lourival Vilela, Liana Jank

IGC Proceedings (1977-2023)

With the increased demand for meat products, associated with environmental concerns due to global climatic and land use changes, the need to efficiently use pasture and forage resources will increase (Boval and Dixon 2012). Efforts to breed and release new forage cultivars must incorporate these concerns, ensuring that introduced material is of high quality, especially under grazing (Euclides et al. 2008).

In this study, we aimed to evaluate the average daily weight gain and stocking rate of Nelore beef cattle grazing new genotypes of Panicum maximum during the rainy season in the Brazilian Cerrado.

Pasture Condition Guides For The Murchison River Catchment, A Fox, T R. Eckersley

Soil conservation survey collection

Knowledge of the pasture resource and its capabilities is essential to sustainable use of the rangelands. Rangeland managers must be able to recognise firstly the different pasture types, and secondly, the differences between present condition classes for each type. Both factors affect the stock carrying capacity, and appropriate pastoral management of a pasture. This guide has been produced for use by pastoralists to assist them to recognise and assess the condition of the perennial pasture resource of their own properties. The guide describes the condition states found in 10 of the most widespread pastures of the Murchison River catchment (Fig. …