Evaluation Of Three Tropical Perennial Grasses For Beef Production In South Central Florida,
2025
University of Florida
Evaluation Of Three Tropical Perennial Grasses For Beef Production In South Central Florida, A Larbi, P Mislevy, W F. Brown, M B. Adjei
IGC Proceedings (1977-2023)
Species of the genus Cynodon (Bermudagrasses and stargrasses) have a considerable potential for grazing in southern Florida (Adjei et al., 1980, Pitman et al., 1984). Preliminary evaluation studies indicate that two new stargrass cultivars, Florico and Florona ( Cynodon nlemfuensis Vanderyst var nlemfuensis) and Callie Hybrid Bermudagrass [C. dactylon (L.) Pers Tifton 44 X Callie], may offer alternatives to commercially available cultivars, due to their high forage production, persistence, cold tolerance and better nutritive value (Mislevy et al., 1981 and Brown, 1986). Little is known, however, of animal performance on these grasses under grazing. The objective of the study was …
Effects Of Grazing Sainfoin Stubble Fields And Adding With Green Hay On Grass-Lamb Fattening,
2025
Gansu Agricultural University
Effects Of Grazing Sainfoin Stubble Fields And Adding With Green Hay On Grass-Lamb Fattening, Fu Yikun, Jia Dujing, Li Guangdi, Dang Bo, Wen Shangwen, Xu Changlin
IGC Proceedings (1977-2023)
With its fast turnover, low cost and high nutrition, lamb production has been developing an important industry of seasonal animal husbandry recently in China. The way of taking lambs from pastoral area and then fattened in farming area is considered to be most effective for lambs can make good use of feeds and climate resources in both farming and pastoral areas. The effects of grazing sainfoin ( Onobrychis viciifolia) stubble fields and adding with green hay on two types of lamb fattening were studied by means of measuring live-weight gains, meat quality and carcass output during 1986-1987, and the …
Simplification Du Paturage Pour Vaches Ellaitantes En Region De Demi-Montagne Humide,
2025
INRA
Simplification Du Paturage Pour Vaches Ellaitantes En Region De Demi-Montagne Humide, P D'Hour, J P. Garel, M Petit
IGC Proceedings (1977-2023)
Les plateaux herbagers du Nord du Massif Central (France) sont d'altitude moyenne (ll00 m) et beneficient d'un climat oceanique montagnard, permettant une saison de paturage de 5-6 mois. Les prairies naturelles a base de graminees fournissent une herbe abondante au printemps, mais leur production estivale peut etre fortement limitee par la pluviometrie. Ces prairies sont utilisees par des troupeaux de vaches allaitantes, sous-alimentees pendant l'hiver, qui doivent reconstituer leurs reserves corporelles au paturage. La croissance au paturage des veaux, allaites par leurs meres, depend de la qualite et de la quantite d'herbe disponible (Petit et Muller, 1980; Leblanc et al, …
Efficiency Of Grazing On Growth And Nutrient Intake Of Dairy Heifers,
2025
Obihiro University of Agriculture and Veterinary Medicine
Efficiency Of Grazing On Growth And Nutrient Intake Of Dairy Heifers, M Okamoto, I Iketaki, N Hasegawa, N Yoshida
IGC Proceedings (1977-2023)
Grazing has traditionally been recognized as one of the most important labor-saving means in which herbage can be utilized more economically. However, in Japan, the practice of grazing is declining due to improved farm management - more animals per farm, greater harvest yield per area and higher production performance. Grazing animals tend to be healthier and more productive than animals kept in confinement. In addition, feed cost of raising dairy heifers on high pasture system is reduced by more than 50 % relative to the conventional (dry lot) system and to 65 % when the cost oflabor and facilities are …
Management Systems For Growing Fattening Bovine Cattle In Coast Cross Bermudagrass No.1 Without Irrigation,
2025
Instituto de Ciencia Animal
Management Systems For Growing Fattening Bovine Cattle In Coast Cross Bermudagrass No.1 Without Irrigation, G Vales, A Molina
IGC Proceedings (1977-2023)
Four experiments were carried out to establish an intensive non-irrigated system with Holstein male calves in coast cross bermuda grass No. 1 (Cynodon dactylon cv. Coast cross 1). Two grazing methods were evaluated. These were : segregating the area for pasture conservation in the rainy season and N fertilization including the strategy of application combined with different stocking rates.
Beef Production From Digitaria Eriantha Subsp. Eriantha In A Sub-Tropical Environment,
2025
Cedara Agricultural Research Station
Beef Production From Digitaria Eriantha Subsp. Eriantha In A Sub-Tropical Environment, M B. Hardy, N N. Gray
IGC Proceedings (1977-2023)
Digitaria eriantha subsp. eriantha, previously known as D. smutsii (Russel and Smook 1980), is a robust perennial grass adapted to a wide range of soils and climatic conditions. In Australia, the species has performed well on a number of sites with soils ranging from« cracking clays to sandy loams» where rainfall varied between 400 and 1000 mm/annum (Strickland 1987). A similar range of adaptability has been recorded in South Africa (Brockett and Gray 1984, Dannhauser 1985). In cutting trials, D. eriantha yielded between 3500 and 15000 kg of dry matter/ha with annual rainfall of 450 and 1200 mm/annum respectively. The …
Beef Production In Guineagrass Pastures With Nitrogen Or Legumes,
2025
Universidade Estadual Paulista
Beef Production In Guineagrass Pastures With Nitrogen Or Legumes, V Favoretto, L.R. De A. Rodrigues, A G. Chiarello, A.A M. Sampaio, P F. Vieira, E B. Malheiros
IGC Proceedings (1977-2023)
Beef production in Brazil is based on the high dry-matter production of tropical grasses, but yields are not always satisfactory. Nitrogen fertilization results in linear increases of drymatter production (Gomide et al., 1984) and also in the liveweight-gain (LWG) of the animals (Addison et al., 1985). However, due to the high cost of fertilizers, the utilization of grass pastures associated to herbaceous or shrub legumes may be an economic way to increase animal production. The aim of this work was to study the availability of dry-matter and the L WG of steers in Guineagrass (Panicum maximum Jacq.) pastures fertilized with …
Performance Of Three Beef Cow Genotypes When Grazing Sown Pasture At Two Sward Heights,
2025
Macaulay Land Use Research Institute
Performance Of Three Beef Cow Genotypes When Grazing Sown Pasture At Two Sward Heights, I A. Wright, J R. Jones, T J. Maxwell, A.J F. Russel
IGC Proceedings (1977-2023)
In grassland based systems of animal production, it is important to choose a genotype of animal with production characteristics appropriate to the level of nutrition which can be supplied by the available resources. It is generally recognised that the most economically efficient beef cow systems are those that allow the cows to increase levels of body fat when feed is plentiful or cheap (eg. summer grazing in N. Europe) and to draw on those reserves during periods of feed scarcity or when feed is expensive (eg. winter) (Russel and Broadbent, 1985). The ability of cows to increase body reserves during …
Cow-Calf Performance On Cool Season And Warm Season Pasture Systems,
2025
USDA, Agricultural Research Service
Cow-Calf Performance On Cool Season And Warm Season Pasture Systems, J R. Gerrish, F A. Martz, V A. Johnson, R E. Morrow, G B. Garner
IGC Proceedings (1977-2023)
Preweaning growth of beef calves is determined by milk production of the dam and herbage consumption by the calf. These parameters are impacted by quantity of herbage on offer and nutritive quality of the sward. Forage availability and quality are dependent upon species composition and pasture management. In the humid temperate regions, both C3 and C4 species are utilized in grazing programs with traditional grazing management being either continuous or very lax rotations. A grazing study was undertaken to evaluate the preweaning growth of calves and milk production of their dams as impacted by pasture species and intensity of management …
Year-Round Grazing Systems For Beef Production From Conception To Slaughter,
2025
. Virginia Polytechnic Institute and State University
Year-Round Grazing Systems For Beef Production From Conception To Slaughter, V G. Allen, J P. Fontenot, W P. Green, R C. Hammes Jr
IGC Proceedings (1977-2023)
Throughout much of the world cattle are produced mainly on forage. High grain yields in the U.S. have led to feeding cattle high grain to minimize time in the feedlot, and overhead costs. Recent emphasis on lean meat, diet and health issues has renewed interest in finishing cattle on forages. The objective of this research was to evaluate various forage systems of beef production from conception through slaughter with minimum grain. Effects of forage system during cow-calf and growing phases on performance and carcass characteristics during the finishing phases were evaluated. The research included calves born in late winter-early spring …
Supplements For Calves Fed Autumn Pasture,
2025
Massey University
Supplements For Calves Fed Autumn Pasture, G F. Wilson, K Wittayanuparpyuenyong, A M. Kassano
IGC Proceedings (1977-2023)
Milk production levels achieved by dairy cows, and the growth rates of newly weaned calves, grazing ryegrass/white clover pastures during autumn in New Zealand are normally lower than those achieved during spring (Wilson, 1988), The present experiment was undertaken to compare the effects of milk replacers and concentrate supplementation on the grass intakes and performance of 6-11 week-old calves. A second objective was to investigate if the form in which milk replacer was fed (liquid or powder) influenced the responses. Such information is required to provide reasons for the poor performance of cattle in the autumn and also to demonstrate …
Effect Of Acremonium Coenophialum Infected Festuca Arundinacea On Cow-Calf Production,
2025
University of Tennessee
Effect Of Acremonium Coenophialum Infected Festuca Arundinacea On Cow-Calf Production, J C. Waller, J B. Mclaren, H A. Fribourg, A B. Chestnut, D G. Keltner
IGC Proceedings (1977-2023)
Tall fescue (Festuca arundinacea Schreb.) is the predominant forage available to beef cattle producers in the transition zone of the eastern US. The presence of the endophytic fungus Acremonium coenophialum Morgan-Jone & Garns has been associated with reduced animal performance that results in substantial economic loss to producers (Bacon and Siegel, 1988; Bush and Burrus, 1988; Stuedemann and Hoveland, 1988). Cattle producers have used N fertilization to increase productivity of fescue pastures. Renovation of fescue pastures with legumes has been a method of improving pasture quality and the performance of animals grazing those pasture (McLaren et al., 1983).
Soil Fertility And Beef Production In The Semi-Arid Sub-Tropics,
2025
CSIRO
Soil Fertility And Beef Production In The Semi-Arid Sub-Tropics, P C. Kerridge, R W. Mclean
IGC Proceedings (1977-2023)
Two-thirds of the grazing lands in Queensland are on infertile soils, low in organic matter, phosphorus (P) and nitrogen (N) (Weston et al., 1981). Pasture quality is low and average liveweight gain (L WG) of steers on these soils ranges from 0.10 to 0.30 kg/day compared to 0.40 to 0.50 kg/day on more fertile soils. Low herbage production limits carrying capacity to 3-10 ha/animal. The nutritive value can be improved by (i) direct supplementation of animals with N and P, (ii) introduction of a legume together with fertilizer and/or supplement P or (iii) use of heavily fertilized improved grasses ± …
Animal Perforamnce On Dwarf Elephantgrass And Rhizoma Peanut Pastures,
2025
University of Florida
Animal Perforamnce On Dwarf Elephantgrass And Rhizoma Peanut Pastures, L E. Sollenberger, C S. Jones Jr, G M. Prine
IGC Proceedings (1977-2023)
Pasture systems in the southeastern U.S. are based on perennial warm-season grasses, but forage quality of these species is often low during mid-summer through early fall. Two perennial forages that were recently released in Florida, 'Mott' dwarf elephantgrass (Pennisetum purpureum Schum. ; Sollenberger et al., 1988b) and the legume 'Florigraze' rhizoma peanut (Arachis glabrata Benth. ; Prine et al., 1981), have potential to provide herbage of high quality during May through October. Grazing trials were conducted to determine steer ( Bos spp.) average daily gain (ADG), carrying capacity (CC), and gain ha-1 on Mott and Flozigraze, and to compare these …
Influence Of Forage Availability On Growth And Reproduction Of Brahman-Hereford (F-1) Females Grazing Humid Pastures And Semi-Arid Rangelands,
2025
Texas Agricultural Experiment Station
Influence Of Forage Availability On Growth And Reproduction Of Brahman-Hereford (F-1) Females Grazing Humid Pastures And Semi-Arid Rangelands, J W. Holloway, F M. Rouquette Jr, C R. Long, M K. Owens, B G. Warrington, A D. Chamrad, J F. Baker, D W. Forrest
IGC Proceedings (1977-2023)
Relationship of forage availability, animal growth, and reproduction have been studied in both humid "improved" pastures (Adje et al., 1980; Guerrero et al., 1984; Bransby et al., 1988) and semi-arid "native" rangelands (Hart, 1972, 1978) but no study has been reported in which the two ecosystems hav�� b��en compared in terms of these relationships. Forage ava1lab1hty 1s one of the primary variables that can be easily controlled by cattle producers and thus the relationship to performance and reproduction is of fundamental importance. The purpose of this experiment was to determine if the patterns of relationship between forage availability and animal …
Forage Management System For Lean Beef Production: Nitrogen Rate On Pasture And Roughage Level In Feedlot,
2025
Texas Agricultural Experiment Station
Forage Management System For Lean Beef Production: Nitrogen Rate On Pasture And Roughage Level In Feedlot, F M. Rouquette Jr, L R. Nelson, D P. Hutcheson
IGC Proceedings (1977-2023)
Fertilizer rates have long been shown to increase forage dry matter production and growth promoting implants have been shown to increase live weight gains during either the stocker or feeder phase. There has been little evidence, however, to ascertain the influence of pasture-animal management systems on subsequent feedlot performance. The primary objectives of this study were to: (1) determine the influence of rate of fertilizer nitrogen and Zeranol implant on gain per animal and gain per acre ; and (2) determine the influence of previous pasture treatment on feedlot performance from two levels of roughage.
Effect Of Stocking Rate And Grazing Systems On Daily Weight Gain Steers Grazing Melilotus Alba Var. Annua Pure Or In Association With Avena Sativa, R N. Berti
IGC Proceedings (1977-2023)
The production of native pastures is less than 80 kg liveweight gain yeac1 ha-1 in the grazing area of the sub-humid environments of the Argentinian sub-tropics. The production of forage is concentrated during the summer-rainy season. The use of pastures of great production and quality as Melilotus u/ba var. annua pure or in association with Avena sativa allows to increase the production to �� 300 kg year-1 ha-1. Previous experience in the area pointed out that the major factors having an influence on the production cost are the stocking rate and the grazing system. The objective of this study was …
Gestion Et Valorization Des Prairies Cultivees En Guyane Francaise,
2025
INRA
Gestion Et Valorization Des Prairies Cultivees En Guyane Francaise, S De Rouville, G Molenat
IGC Proceedings (1977-2023)
L'installation de prairies cultivees sur savane ou sur defriche forestiere en Guyane Frarn;:aise se heurte a la pauvrete chirnique des sols (Cabidoche et Servant, 1982) et a une repartition des pluies irreguliere. Des especes fourrageres, issues de regions comparables, malgre des resultats encourageants en petite par celle, ont parfois des productions decevantes sous le pied ��u bovin utilise: le zebu. L'objectif est de definir une condmte reproductible des paturages afin d'assurer Ieur perennite et une production de viande par hectare suffisante pour atteindre un equilibre technico-econornique dans un systeme a niveau d'investissement eleve (Bourges, 1984).
Long-Term Productivity Of Legumes-Based And Pure Grass Pastures In The Eastern Plains Of Colombia,
2025
CIAT
Long-Term Productivity Of Legumes-Based And Pure Grass Pastures In The Eastern Plains Of Colombia, C Lascano, J Estrada
IGC Proceedings (1977-2023)
The savannas of Colombia have acid soils of low fertility, a well defined dry season and an herbaceous native vegetation of low nutritional value (Lascano and Spain, 1986). As a consequence, traditional livestock production is extensive and of low productivity in terms of animal growth and reproduction (Vera and Sere, 1985). An economically attractive alternative to increase cattle production in the savannas of Colombia is through the use of legume-based pastures, provided they are productive and persistent (Nores and Estrada, 1979). This paper presents results on animal production and forage attnbutes of a long-term grazing experiment which includes a grass …
Animal Production Of Pastures Based On Centrosema Spp. In The Eastern Plains Of Colombia,
2025
CIAT
Animal Production Of Pastures Based On Centrosema Spp. In The Eastern Plains Of Colombia, C Lascano, J Estrada, P Avila
IGC Proceedings (1977-2023)
Lack of adaptation of commercial grass and legume cultivars to biotic and edaphic constraints prevailing in tropical American savannas has been partially responsible for failures in the development of improved pastures in these areas (Toledo, 1985). As a result, the Tropical Pastures Program of CIAT has taken responsibility to collect and select forage germplasm with adaptation to acid soils of low natural fertility. Within the Centrosema genus promising acid soil tolerant species have been identified, such as C. macrocarpum (SchultzeKraft et al., 1985), C. acutifolium (Schultze-Kraft et al., 1987) and C. brasiliarum (Schultze-Kraft and Benavides, 1988). A grazing experiment was …
