Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Institution
- Publication Year
- Publication
- Publication Type
Articles 1 - 30 of 122
Full-Text Articles in Soil Science
Role Of Non-Traditional Forages In Livestock Production In India, Bhag Mal, J N. Gupta, J P. Singh
Role Of Non-Traditional Forages In Livestock Production In India, Bhag Mal, J N. Gupta, J P. Singh
IGC Proceedings (1997-2023)
The paper reports a number of non-traditional forage species which form the life support system for grazing animals in normal conditions as well as scarcity periods like droughts and famines. Such species vary according to climatic and ecological conditions of India. These species play an important role in domestic livestock production as well as providing forage to the game animals. In the arid region the majority of such species are small trees and shrubs; in semi-arid regions majority of such species are shrubs, aquatic weeds and minor millets. In temperate/alpine Himalaya such species range from lichens, ferns, climbers to shrubs …
The Role Of Leguminous Browse Plants In A Cool Mediterranean Enviornment, P A. Lane, R Reid, D Parsons
The Role Of Leguminous Browse Plants In A Cool Mediterranean Enviornment, P A. Lane, R Reid, D Parsons
IGC Proceedings (1997-2023)
There is considerable scope for improving the productivity and persistence of pasture systems, in the temperate low rainfall zones (< 550 mm annual rainfall) of Australia and New Zealand. Alternative pasture species, including leguminous browse plants, have potential to increase the diversity and stability of these pasture systems. The genus Dorycnium (canary clover), has previously been identified as containing a number of species with desirable forage and soil conservation characteristics. Preliminary investigations have indicated that at least two species, D. rectum and D. hirsutum, produce significant quantities of forage in the year of establishment and are palatable to sheep. It is proposed that these plants may provide a valuable source of forage on land which currently lacks productive and persistent pasture. Forage produced by these plants would be allowed …
A Transdisciplinary Approach To Landscape Transformation Towards Perennial, Diverse, Circular Systems: Why And How, V. Picasso, C. Williams
A Transdisciplinary Approach To Landscape Transformation Towards Perennial, Diverse, Circular Systems: Why And How, V. Picasso, C. Williams
IGC Proceedings (1997-2023)
Prevailing agricultural systems in the U.S. are dominated by intensification through annual crop monocultures and high amounts of external inputs. Increased yields per unit of land have resulted but many undesirable environmental, ecological, and socioeconomic outcomes have co-occurred. Lack of resilience within intensified agricultural systems is a factor in these outcomes. Redesign of agricultural systems and changes in federal policy are needed to better support resilience in agriculture. Redesign for greater resilience must encourage adoption of agricultural systems that are diverse, perennial, circular, and include forages. We developed a transdisciplinary framework within a project orientation with a focus on crops …
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
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 (1997-2023)
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
Participatory Evaluation Of Urochloa (Brachiaria) Grasses In The Cool Highlands Of Central Kenya, Elkana Nyambati, W. Ayako, S. K. Mailu
IGC Proceedings (1997-2023)
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 …
Physically Adjusted Ndf: Integrating Forage Physical Form With Diet Complexity On The Farm, P. J. Kononoff, M. B. Hall
Physically Adjusted Ndf: Integrating Forage Physical Form With Diet Complexity On The Farm, P. J. Kononoff, M. B. Hall
IGC Proceedings (1997-2023)
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 …
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
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 (1997-2023)
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 …
Forages For Horses Revamped, C. Gelley, E. Lyon, H. Zynda, S. Mastellar, E. Share, B. Hendershot, D. Kreager, G. Wilson, R. Purdin, J. Hampton, J. Morris, T. Wiseman, L. Beers, M. Sulc
Forages For Horses Revamped, C. Gelley, E. Lyon, H. Zynda, S. Mastellar, E. Share, B. Hendershot, D. Kreager, G. Wilson, R. Purdin, J. Hampton, J. Morris, T. Wiseman, L. Beers, M. Sulc
IGC Proceedings (1997-2023)
The Forages for Horses program began in Ohio in1998 as a collaboration between the Ohio Forages & Grasslands Council and Ohio State University Extension. Over time, additional collaborations with the Natural Resources Conservation Service, Ohio Department of Agriculture and local Soil and Water Conservation Districts expanded the program. At its inception, one to three educators would partner to provide eight hours of in-person lectures followed by a pasture walk to better the management practices of equine enthusiasts. From 2021 through 2022, the curriculum was adapted for a hybrid classroom and included three 90-minute live webinars featuring nine different presentations followed …
More Than Fiber: Forage Carbohydrates Affecting Animal Performance, M. B. Hall
More Than Fiber: Forage Carbohydrates Affecting Animal Performance, M. B. Hall
IGC Proceedings (1997-2023)
Forages are well known as an important source of fiber in livestock diets. However, their carbohydrate contribution is more than fiber. Forage grasses and legumes supply sugars, fructans, and other water-soluble carbohydrates as well as soluble fiber that behave very differently than starch in the rumen. With a focus on ruminants, we will explore the forage supply, and ruminal and animal impacts.
The Business Case For Healthy Grasslands-Based Agriculture – Economic And Social Implications, E. Bisangwa, Pat D. Keyser
The Business Case For Healthy Grasslands-Based Agriculture – Economic And Social Implications, E. Bisangwa, Pat D. Keyser
IGC Proceedings (1997-2023)
Native perennial warm-season grasses (NWSGs) of the United States (U.S.) provide valuable summer forage. Studies have shown their potential within grazing systems as a complement to cool-season forages, as well as their benefits to soil biota, wildlife biodiversity, carbon sequestration and their resiliency to extreme drought and flood events. In this paper, we demonstrate that, in addition to these benefits, NWSGs provide important economic value to beef and dairy producers as a hedge against financial risks posed by overreliance on cool-season grasses.
Use Of Limpograss As An Alternative Feed During The Fall Forage Gap In Beef And Dairy Systems In Central And North Florida, L. Garcia, José C. B. Dubeux Jr., Marcelo O. Wallau, J. D. Pereira-Neto, M. A. Bernardini, M. Ruiz-Moreno
Use Of Limpograss As An Alternative Feed During The Fall Forage Gap In Beef And Dairy Systems In Central And North Florida, L. Garcia, José C. B. Dubeux Jr., Marcelo O. Wallau, J. D. Pereira-Neto, M. A. Bernardini, M. Ruiz-Moreno
IGC Proceedings (1997-2023)
In central and North Florida, the use of limpograss [Hemarthria altissima (Poir.) Stapf & C. E. Hubb.] for beef and dairy operations is limited and its potential use is not well documented. Two on-farm projects have been conducted in Central and North Florida to explore the use of limpograss as an alternative conserved forage during late fall and winter. The potential use of this forage as baleage for dairy farmers and as stockpiling for livestock producers would offer another alternative to reduce feed costs and fill the forage gap in the area when typical warm-season forages go dormant. In …
Chlorophyll And Mineral Dynamics Of Perennial Grass Species Found In Semi- Arid Rangelands Of South Africa, N. H. Msiza, K. E. Ravhuhali, H. K. Mokoboki, Sydney Mavengahama, L. E. Motsei
Chlorophyll And Mineral Dynamics Of Perennial Grass Species Found In Semi- Arid Rangelands Of South Africa, N. H. Msiza, K. E. Ravhuhali, H. K. Mokoboki, Sydney Mavengahama, L. E. Motsei
IGC Proceedings (1997-2023)
Minerals are essential for ruminants and are mostly provided by grass species. Their growth stage is vital in the supply of these minerals. Perennial grass species have been mostly undervalued, owing to the scarce information concerning their potential feeding value and little documentation about their potential nutritive value in different growth stages. This study was conducted to investigate the chlorophyll and mineral concentration of grass species at different growth stages under greenhouse conditions at the North-West University Experimental farm, North West province, South Africa. The soil, collected from different villages, was mixed and samples were drawn for chemical analysis before …
Opportunities For Promoting The Adoption Of Forages In Kenya, Joseph G. Mureithi, Elkana M. Nyambati
Opportunities For Promoting The Adoption Of Forages In Kenya, Joseph G. Mureithi, Elkana M. Nyambati
IGC Proceedings (1997-2023)
Livestock production plays an important socio-economic role in many areas across Kenya. They are kept in all the major livestock production systems including smallholder mixed crop- livestock system, crop-livestock-tree production system, and pastoral/extensive livestock production system, which occupy about 70% of land in Kenya. Livestock production is mainly constrained by inadequate feed quantity and quality. Forage forms the major source of feed for ruminant livestock as they provide high-quality forage to alleviate feed shortages. The demand for pasture and fodder production and conservation to meet livestock feed requirements, particularly during the dry seasons, has created the need to re-position the …
Annual Clovers Around The World: Current Status And Future Prospects, P. G. H. Nichols, G. R. Smith, D. J. Moot, Serkan Ates, Claudio Porqueddu, Esteban F. Rios, Mounir Louhaichi, Alejandro Del Pozo, N. Kotze, Alan W. Humphries, K. Ghamkhar, M. H. Ryan
Annual Clovers Around The World: Current Status And Future Prospects, P. G. H. Nichols, G. R. Smith, D. J. Moot, Serkan Ates, Claudio Porqueddu, Esteban F. Rios, Mounir Louhaichi, Alejandro Del Pozo, N. Kotze, Alan W. Humphries, K. Ghamkhar, M. H. Ryan
IGC Proceedings (1997-2023)
This paper reviews the distribution and importance of annual clover (Trifolium) species for pasture and fodder production systems globally. Of the 158 recorded annual Trifolium species, 65.2% are endemic to the Mediterranean basin and surrounding areas, 14.6% to sub-Saharan Africa, 17.7% to the United States of America and 2.5% to Chile. Fourteen species have been commercialised, while other endemic and naturalised annual clovers are also utilised. Key species for self-regenerating pastures include T. subterraneum, T. michelianum and T. respinatum var. resupinatum, while major dual-purpose grazing and fodder species include T. incarnatum, T. vesiculosum, T. alexandrinum and T. …
Industrial Hemp Forage Potential, Swarup Podder, John H. Fike, B. Wilson
Industrial Hemp Forage Potential, Swarup Podder, John H. Fike, B. Wilson
IGC Proceedings (1997-2023)
Hemp (Cannabis sativa L.) has been a valuable species for humans throughout history due to its adaptability and diverse uses. Farmers are interested in hemp as a forage and feedstuff due to its unique nutritional properties and fast summer production. Moreover, the presence of cannabinoids in leaf and bud tissues may provide pharmacological benefits to animal health, productivity, and product quality under different regulatory frameworks. This study examined two hemp cultivars, Grandi and Joey, solely as forage crops, and samples were taken at different growth stages in Blacksburg, VA, USA, in 2021. The highest biomass production of 1.41 tons per …
Accuracy And Precision Of Near Infra-Red Spectroscopy (Nirs) Versus Wet Chemistry In Forage Analysis, U. K. Saha, R. J. Kern-Lunbery
Accuracy And Precision Of Near Infra-Red Spectroscopy (Nirs) Versus Wet Chemistry In Forage Analysis, U. K. Saha, R. J. Kern-Lunbery
IGC Proceedings (1997-2023)
Near Infra-red Spectroscopy (NIRS) is an attractive option for forage analysis. NIRS is less labor intensive, nondestructive, rapid, environmentally friendly and provides accurate and precise results. However, many nutritionists are quick to brush off NIRS, citing ‘poor accuracy’. We evaluated the accuracy and precision of dry matter (DM), crude protein (CP), acid detergent fiber (ADF), and neutral detergent fiber (NDF) of 33 National Forage Testing Association (NFTA) proficiency test (PT) alfalfa hay samples analyzed by NIRS in 7 NIRS Forage and Feed Testing Consortium (NIRSC) member laboratories. The reference method averages (RMA), used to evaluate the NIRS results, were based …
Back To The Future: How Do We Get There From Here? Making Restoration Work, K. Swilling, E. Bisangwa, Pat D. Keyser
Back To The Future: How Do We Get There From Here? Making Restoration Work, K. Swilling, E. Bisangwa, Pat D. Keyser
IGC Proceedings (1997-2023)
Extreme temperatures and long periods of drought observed with increasing frequency in the southeastern United States (U.S.) have demonstrated the need to develop more robust forage systems. Native warmseason grasses (NWSGs) are well adapted to fill this role, but their expanded use comes with several challenges, most notably, reliable establishment. The high cost of site preparation, high cost of seed, and slow initial growth of NWSG seedlings must be addressed to achieve increased adoption of NWSG in the eastern U.S. If these challenges are overcome, incorporating NWSG into grazing systems would benefit producers by filling the summer forage gap, mitigating …
Diversity And Adaptation Of Perennial Plants From North Africa: Legumes And Grasses, Aissa Abdelguerfi, M. Laouar, K. Abbas, M. M'Hammedi Bouzina
Diversity And Adaptation Of Perennial Plants From North Africa: Legumes And Grasses, Aissa Abdelguerfi, M. Laouar, K. Abbas, M. M'Hammedi Bouzina
IGC Proceedings (1997-2023)
A variety of climates, soil types and reliefs characterise North Africa (Algeria, Morocco, and Tunisia). These natural conditions have produced a large diversity of environments, landscapes, plant formations and flora. Several factors have contributed to the spread of a wide floristic variety: the influence of the Mediterranean in the north and in the north-east, the Atlantic in the west, and the Sahara in the south, as well as the presence of mountain ranges, particularly the Rif, the Tell Atlas, the Sahara Atlas, the Middle Atlas, the High Atlas, and the Anti-Atlas. This diversity of landscapes, environments and ecosystems has generated …
Participatory Plant Breeding In Uruguay, D. Real, G. A. Ferreira, D. F. Risso, C. Mas
Participatory Plant Breeding In Uruguay, D. Real, G. A. Ferreira, D. F. Risso, C. Mas
IGC Proceedings (1997-2023)
The introduction of forage legumes into the native pastures of Uruguay is considered an environmentally safe method with which to increase the level of production through the addition of biologically fixed nitrogen. An integrated plant breeding programme was initiated at INIA (National Agricultural Research Institute), Uruguay, with the aim of developing forage legumes able to persist and produce in co-existence with the native (grass dominant) vegetation under cattle and sheep grazing. The programme was conducted in parallel with rhizobial strain selection. During 1998 to 2001 at Glencoe Research Station (32o 01'32"S lat; 57o 00o 39"W long), 326 …
Adapting The Cropgro Model To Predict Growth And Perennial Nature Of Bahiagrass, S. J. Rymph, K. J. Boote, J. W. Jones
Adapting The Cropgro Model To Predict Growth And Perennial Nature Of Bahiagrass, S. J. Rymph, K. J. Boote, J. W. Jones
IGC Proceedings (1997-2023)
The objective of this research was to modify an existing crop growth model for ability to predict growth and composition of bahiagrass (Paspalm notatum Flügge) in response to daily weather and management inputs. The CROPGRO-CSM cropping systems model has a generic, process-oriented structure that allows inclusion of new species and simulating cropping sequences and crop rotations. An early adaptation of CROPGRO-CSM "species files" for bahiagrass over-predicted growth during late fall through early spring, and totally failed in re-growth if all foliage was lost from freeze damage. Revised species parameters and use of "pest damage" offered only a partial solution. …
Forecasting Forage Yields Using The Arima Model In Pastoral Areas Of East Africa, Robert J. Kaitho, J. W. Stuth, Jay Angerer, A. A. Jama
Forecasting Forage Yields Using The Arima Model In Pastoral Areas Of East Africa, Robert J. Kaitho, J. W. Stuth, Jay Angerer, A. A. Jama
IGC Proceedings (1997-2023)
Predicting forage supply is an age old quest for pastoralists, particularly in fragile and drought- prone areas of Africa. Traditional methods of forecasting forage used by many communities have become less effective due to climate change, frequent droughts and decline of grazing areas. Conflicts relating to available forage and water resources are increasing, because more marginal lands are put to crop production. A new forage forecasting technology has been developed that provides a comprehensive view of current forage condition (Stuth et al., 2004). A multiple species grazing land plant growth hydrology based model (PHYGROW) was parameterised with site-specific soil, …
American Forage And Grassland Council Technology Interaction And Policy Development, E. K. Twidwell, W. A. Tucker
American Forage And Grassland Council Technology Interaction And Policy Development, E. K. Twidwell, W. A. Tucker
IGC Proceedings (1997-2023)
The American Forage and Grassland Council (AFGC) is a national organisation which has been in existence since 1968. Membership of AFGC is about 2,500. The membership of AFGC is divided into three main sectors: private, public and industry. The private sector has the largest membership (60%), and private members are usually producers that are engaged in some type of agricultural enterprise involving the use of forages. The public sector members (30%) are educators and other government agency personnel that work with the general public. The industry sector (10%) involves various companies that deal with the forage industry. The AFGC Board …
Soil Carbon Sequestration Under Three Years Of No-Till Forage Cropping Systems, D. H. Min, J. D. Deyoung, Richard Leep
Soil Carbon Sequestration Under Three Years Of No-Till Forage Cropping Systems, D. H. Min, J. D. Deyoung, Richard Leep
IGC Proceedings (1997-2023)
The effects of reduced tillage on soil organic carbon (SOC) are generally well established (Chan et al., 2002; Cabardella & Elliott, 1992). The effects of different crops are also somewhat understood (Drinkwater et al., 1998). However, many of these studies are done in the laboratory to study the effects of crop residues on SOC. Many forage-based systems have very little crop residue returned to the field. What residue does return is often in the form of manure or compost, which is usually broken down much more rapidly than most crop residues. The objective of this study is to …
Influence Of Grass Species And Sample Preparation On Ensiling Characteristics, D. J. R. Cherney, M. A. Alessi, J. H. Cherney
Influence Of Grass Species And Sample Preparation On Ensiling Characteristics, D. J. R. Cherney, M. A. Alessi, J. H. Cherney
IGC Proceedings (1997-2023)
Laboratory silos are considered a practical method of comparing a number of treatments (O'Kiely, 1993). Cherney et al. (2004) reported that vacuum-sealed polyethylene bags effectively ensiled corn silage samples in the laboratory. Grasses, with their inherently higher buffering capacities and lower sugar levels, generally are more difficult to ensile. Objectives were to evaluate the influence of species and chopping (whole vs. shredded) on pH and volatile fatty acid profile of grasses ensiled in vacuum-sealed polyethylene bags and to assess the suitability of this method as a laboratory ensiling method.
An Appraisal Of The Potential For Soybeans In The United Kingdom, C. A. Sawyer, G. P. F. Lane, W. P. Davies
An Appraisal Of The Potential For Soybeans In The United Kingdom, C. A. Sawyer, G. P. F. Lane, W. P. Davies
IGC Proceedings (1997-2023)
Soybean is a most important crop worldwide, accounting for 56% of world oilseed production and 69% of world protein meal consumption in 2003 (Soystats, 2004). Since their introduction in the early 1800's, forage soybeans have been grown widely in USA. Used originally as a forage crop, this use largely had been forgotten until Dr T. E. Devine (United States Department of Agriculture, Agricultural Research Service; USDA-ARS) released 4 new forage cultivars. Soybeans potentially offer UK farmers a high quality protein source in a short season and also meet the requirements of supermarket chains to remain GM free. This paper aims …
Species And Chlorine Fertilisation Affect Dietary Cation-Anion Difference Of Cool-Season Grasses, Gilles Bélanger, Sophie Pelletier, H. Brassard, Gaëtan F. Tremblay, Philippe Seguin, R. Drapeau, A. Brégard, Réal Michaud, Guy Allard
Species And Chlorine Fertilisation Affect Dietary Cation-Anion Difference Of Cool-Season Grasses, Gilles Bélanger, Sophie Pelletier, H. Brassard, Gaëtan F. Tremblay, Philippe Seguin, R. Drapeau, A. Brégard, Réal Michaud, Guy Allard
IGC Proceedings (1997-2023)
The Dietary Cation-Anion Difference [DCAD = (Na + K) - (Cl + S); Ender et al., 1971] is used in balancing rations for dry dairy cows. Low DCAD diets induce a mild, compensated metabolic acidosis that stimulates bone resorption, improves Ca homeostasis, and prevents milk fever. Dry cow rations contain a high proportion of forage and, therefore, forages fed two to four weeks prepartum should have a low or negative DCAD value. Our objectives were to evaluate the DCAD of five cool-season grass species grown in eastern Canada and to determine the effect of Cl fertilisation on the DCAD …
Seasonal Variation Of Forage Productivity And Quality Of Communally Managed Grassland In The N’Komati River Basin, D. W. Nguluve, C. Menezes, A. Buluveze, A. P. Laita
Seasonal Variation Of Forage Productivity And Quality Of Communally Managed Grassland In The N’Komati River Basin, D. W. Nguluve, C. Menezes, A. Buluveze, A. P. Laita
IGC Proceedings (1997-2023)
Livestock production is increasing in Mozambique. This trend, however, is facing such challenges as land tenure, erratic and not well-distributed rainfall (resulting in floods or droughts), overgrazing, wildfires, and the unsustainable resource management practices of communities. The study objectives were to evaluate forage species occurrence and seasonal variation and to estimate grassland productivity, nutritive value and savanna carrying capacity.
Modelling Of Nitrogen Allocation And Partitioning Within Lucerne (Medicago Sativa) Shoot Tissues During Recovery From Defoliation: An Approach To Estimate Forage Production And Nitrogen Composition, F. Meuriot, A. Escobar-Gutiérrez, J-C. Avice, J-C. Simon, F. Lesuffleur, F. Gastal
Modelling Of Nitrogen Allocation And Partitioning Within Lucerne (Medicago Sativa) Shoot Tissues During Recovery From Defoliation: An Approach To Estimate Forage Production And Nitrogen Composition, F. Meuriot, A. Escobar-Gutiérrez, J-C. Avice, J-C. Simon, F. Lesuffleur, F. Gastal
IGC Proceedings (1997-2023)
Lucerne has been grown over centuries for forage. Its forage production is strongly correlated to the initial taproot and stubble N reserves (Avice et al., 1996; Meuriot et al., 2004). However, the influence of cutting management on the level of N storage and the contribution of these N reserves to forage production still remain unclear and need to be studied at the whole plant level. For this purpose, a deterministic model of N allocation within the different organs and partitioning within different biochemical N pools was developed for lucerne with high and low initial N status and cutting …
Traditional Cattle Feeding Stuffs: Fatty Acid Profile, A. M. Peres, L. Dias, J. Sá Morais, F. Sousa, J. M. Pires
Traditional Cattle Feeding Stuffs: Fatty Acid Profile, A. M. Peres, L. Dias, J. Sá Morais, F. Sousa, J. M. Pires
IGC Proceedings (1997-2023)
Dietary polyunsaturated fatty acids (PUFA) are perceived to be healthier than saturated fatty acids. Therefore, in order to be able to manipulate the fatty acid profile of meat and/or milk, to respond to the consumer demands, knowledge of the fatty acid profile of feeding stuffs for cattle is of major importance (LeDoux et al., 2002; Petit, 2002). In this work a preliminary study was made of the fatty acid profile of the cow's diet in a traditional farm production system.
New Advance In Forage Production And Dairy Industry In China, Zhiqiang Q. Li, J. G. Han
New Advance In Forage Production And Dairy Industry In China, Zhiqiang Q. Li, J. G. Han
IGC Proceedings (1997-2023)
There were 6.9 million dairy cows in China in 2002 with milk yield of 13 million t. These values were 21.4 and 26.7% higher respectively than in 2001. Milk yield per cow was 1891 kg, 4.4 % higher than in the previous year, but still one third lower than the world average. Milk fat and protein contents were about 3.2 and 3.0 % respectively, a little below the world average. Milk consumption was 10.9 kg per person, much lower than the world average (97.6 kg) So, although great changes have taken place in dairy breeding, forage production and disease control, …