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Full-Text Articles in Physical Sciences and Mathematics
The Effect Of Grazing On Etiolated Regrowth In Eight Grass Species, H A. Lardner, S.B M. Wright, R.D H. Cohen
The Effect Of Grazing On Etiolated Regrowth In Eight Grass Species, H A. Lardner, S.B M. Wright, R.D H. Cohen
IGC Proceedings (1993-2023)
Grazing by herbivores affects grass species both morphologically and physiologically. A grazing study was conducted on an irrigated pasture near Outlook, Saskatchewan, Canada during the summers of 1991 and 1992 to determine etiolated regrowth after grazing of reed canarygrass (Phalaris arundinacea L.), slender wheatgrass (Elymus trachycaulus (Link) Gould ex Shinners subsp. trachycaulus), intermediate wheatgrass (Thinopyrum intermedium (Host) Barkw. & D.R. Dewey subsp. intermedium), orchardgrass (Dactylis glomerata L.), meadow bromegrass (Bromus beibersteinii Roem. & Schult.), smooth bromegrass (Bromus inermis Leyss.), tall fescue (Festuca arundinacea (Schreb.) Wimm.) and timothy (Phleum pratense L.) in …
Canada's Forage Resources, D Mccartney, P R. Horton
Canada's Forage Resources, D Mccartney, P R. Horton
IGC Proceedings (1993-2023)
Canada is the second largest country in the world and stretches 5,500 km east to west and 4,600 km north to south. About 90% of Canada is uninhabited with 90% percent of the population living within 500 km of the Canadian-American border. About 60% of Canadians live in southern Ontario and Quebec. The grazing industry is located primarily in western Canada with British Columbia, Alberta, Saskatchewan and Manitoba having 84% of the national beef herd. Ontario and Quebec have 73% of the national dairy herd. The majority of harvested forage, dehydrated alfalfa and forage seed crops are grown in western …
Autumn Grass Growth- The Effect Of Rest Interval, R Neilan, E G. O'Riordan, G Keane
Autumn Grass Growth- The Effect Of Rest Interval, R Neilan, E G. O'Riordan, G Keane
IGC Proceedings (1993-2023)
The effect of closing dates (Experiment 1: August 1, August 14 and September 18) and grass regrowth interval (Experiment 2) on herbage yield in the autumn/winter and in the following spring were investigated on a previously grazed Lolium perenne sward. In Experiment 1, similar yields were obtained for the August 1 and August 14 closing. Yields decreased and the proportion of dead material increased from 0.19 to 0.61 between mid-October and late- December. In Experiment 2, dry matter yield increased linearly (P < 0.05) with rest interval up to 7 wks in swards closed in September. There was no significant yield advantage for rest intervals greater than 5-6 wks. It is concluded that accumulated autumn and spring yields showed increased DM production with the shorter regrowth intervals.
The Effect Of Grazing On Leaf Development In Eight Grass Species, H A. Lardner, S.B M. Wright, R H. Cohen
The Effect Of Grazing On Leaf Development In Eight Grass Species, H A. Lardner, S.B M. Wright, R H. Cohen
IGC Proceedings (1993-2023)
Grazing by herbivores affects grass species both morphologically and physiologically. A grazing study was conducted on an irrigated pasture near Outlook, Saskatchewan, Canada during the summers of 1991 and 1992 to determine morphological development of regrowth of reed canarygrass (Phalaris arundinacea L.), slender wheatgrass (Elymus trachycaulus (Link) Gould ex Shinners subsp. trachycaulus), intermediate wheatgrass (Thinopyrum intermedium (Host) Barkw. & D.R. Dewey subsp. intermedium), orchardgrass (Dactylis glomerata L.), meadow bromegrass (Bromus beibersteinii Roem. & Schult.), smooth bromegrass (Bromus inermis Leyss.), tall fescue (Festuca arundinacea (Schreb.) Wimm.) and timothy (Phleum pratense L.) in order to …
Production Response To Feed Supplementation Of Dairy Cows In A Seasonal Calving And Grazing System, T R. Dhiman, W R. Kanneganti, R P. Walgenbach, L J. Massingill, M C. Miltbank, M P. Russelle, L D. Satter
Production Response To Feed Supplementation Of Dairy Cows In A Seasonal Calving And Grazing System, T R. Dhiman, W R. Kanneganti, R P. Walgenbach, L J. Massingill, M C. Miltbank, M P. Russelle, L D. Satter
IGC Proceedings (1993-2023)
A study was conducted over a period of two years to determine the impact of supplemental feed on milk yield and reproductive performance of dairy cows in a spring calving and grazing system. Three groups of Holstein cows consumed either all pasture (P), 2/3 (2/3P), or 1/3 (1/3P) of their feed dry matter from a temperate pasture of mixed grasses and white clover (Trifolium repens L.). The balance of feed for the 2/3P and 1/3P groups was supplied by a supplement containing grain and some forage. Cows calved between March and June. During the grazing season cows consumed 0, 5.8 …
The Effect Of Turnout Date To Pasture In Spring And Grazing Strategy On The Performance Of Spring-Calving Dairy Cows In Wet Land Enviornment, J Maher, S Crosse, M Rath
The Effect Of Turnout Date To Pasture In Spring And Grazing Strategy On The Performance Of Spring-Calving Dairy Cows In Wet Land Enviornment, J Maher, S Crosse, M Rath
IGC Proceedings (1993-2023)
The objective was to investigate the effect of earlier turnout to pasture in spring on animal performance in a wet land environment. Fiftysix spring-calving dairy cows were randomly allocated to four treatments and the stocking rate for each treatment was 2.47 cows/ ha. Cows in three of these treatments commenced grazing in mid- March. The cows on Treatment A grazed 100% of the farm and received 3 kg/day of concentrate. Cows on Treatment B and C grazed 50% of the farm (area designated for silage production), received silage at night, indoors, and 6 kg/day and 3 kg/day of concentrate respectively. …
Beef Production From Grazed Grass And Grass/Clover Swards, Edward G. O'Riordan
Beef Production From Grazed Grass And Grass/Clover Swards, Edward G. O'Riordan
IGC Proceedings (1993-2023)
grazed grass (fertiliser nitrogen treated) and grass/clover swards, during two grazing seasons which extended from early-April until mid-November. Both permanent (Treatments A, B and C) and reseeded (Treatment D, E and F) swards were respectively stocked with 3000, 2500 and 2000 kg liveweight/ha in Spring using fifteen steers/treatment (liveweight = 570kg/head). There were small and generally non-significant treatment effects on final liveweight in both years, but heavier carcasses were observed on the reseeded swards (P<0.05). Clover based swards (Treatments B, C and E, F) produced heavier carcasses (P<0.05) than the nitrogen fertilised grass swards (Treatments A and D). Pasture production ranged from 7540 to 10,469 and from 6360 to 11,606 kg DM/ha in year 1 and 2 respectively, with highest yields being observed on the nitrogen fertilised treatment and on the reseeded swards.
Vertical Distribution In Grass Swards: Interactions Between Dry Matter And Nutritional Quality, D R. Buckmaster, R H. Mohtar, S L. Fales
Vertical Distribution In Grass Swards: Interactions Between Dry Matter And Nutritional Quality, D R. Buckmaster, R H. Mohtar, S L. Fales
IGC Proceedings (1993-2023)
A field experiment was conducted to study the distribution of mass and quality over plant height throughout the growing season in a pure stand of orchardgrass (Dactylis glomerata L.). When plant density (expressed as kg DM/ha per cm height) is plotted against a height of strata, all treatments show a similar linear shape distribution. ADF and NDF concentrations declined with sward height. Fall treatments had lower ADF and NDF concentrations than summer treatments. Conversely, CP concentrations showed an increase with plant height. Fall treatments showed higher CP than spring and summer treatments. Defoliation management did not affect orchardgrass quality. …
Average Annual Requirements, Production, Import And Export Of Legumes And Grass Seeds In Yugoslavia (Serbia And Montenegro) Up To The Year 2000, B Radenovic
IGC Proceedings (1993-2023)
F.R. Yugoslavia (Serbia and Montenegro), in the period from 1995 to 2000, will have sufficient lucerne seeds, of the local varieties and production, and will be able to produce for export from 300 to 500 tons of seeds for foreign varieties registered in our Variety List. For the known customer in Yugoslavia, Serbia, the production of lucerne seeds can be organized in accordance with wishes of foreign partners including varieties that have not been registered, but in such a case a special permit from relevant state authorities would be required, and provided that all produced quantities of lucerne variety that …
Agronomic Evaluation Of Novel Germplasm Under Grazing: Arachis Pintoi Bra-031143 And Paspalum Atratum Bra-009610, A O. Barcellos, E A. Pizarro, N L. Costa
Agronomic Evaluation Of Novel Germplasm Under Grazing: Arachis Pintoi Bra-031143 And Paspalum Atratum Bra-009610, A O. Barcellos, E A. Pizarro, N L. Costa
IGC Proceedings (1993-2023)
The effect of the animal on the pasture and their reverse consequence was studied on two replicated areas of 0.27 and 0.18 ha in a grasslegume sward established in a poorly humid drained soil in the Brazilian Cerrado. The A. pintoi BRA-031143 and P. atratum BRA- 009610 sward was evaluated during four consecutive years under two grazing pressures (GP). The imposed GP affected the botanical composition and pasture availability. Mean live weight gain/animal/ day under the two imposed GP varied from 387+17g, 578+68g, 697+35g and 687+123g between the 1992/93 and 1995/96 rainy seasons. During the dry season the LWG/animal/day varied …
Emergence Of Small And Large Seeded Grasses: Importance Of Shoot Strength, M Andrews, M E. Andrews, C Watson, S M. Percival
Emergence Of Small And Large Seeded Grasses: Importance Of Shoot Strength, M Andrews, M E. Andrews, C Watson, S M. Percival
IGC Proceedings (1993-2023)
Inter-specific relationships between mean seed weight (MSW), coleoptile and mesocotyl length and width, shoot strength and emergence from 15 mm sowing depth were examined for six temperate pasture grass species ranging in MSW from 0.34 - 10.4 mg. For all species, coleoptile + mesocotyl length was greater for emerged than non-emerged seedlings. Across species, emergence % was not significantly correlated with coleoptile + mesocotyl length but it was significantly correlated with mean seed weight and coleoptile and mesocotyl width. Shoot strength increased with increased coleoptile width. It is proposed that decreased emergence % with decreased seed weight across species at …
Rumen Fermentation Kinetics Of Grass Measured In Sacco And With The Gas Production Technique, J W. Cone, H Valk
Rumen Fermentation Kinetics Of Grass Measured In Sacco And With The Gas Production Technique, J W. Cone, H Valk
IGC Proceedings (1993-2023)
Rumen fermentation kinetics of grass and silage, differing in age and yield (1500 -7900 kg DM ha-1), were studied in sacco and in vitro, using the gas production test and the Tilley and Terry technique. An increasing yield increased the content of NDF and lignin in grass and decreased protein content, in vitro degradability measured by the Tilley and Terry method, and rate of fermentation measured with the gas production technique and the nylon bag method. The same ranking in fermentation characteristics was observed using the gas production test, the nylon bag method and the Tilley and Terry method. The …
Mineral Intake And Utilization By Dairy Cows Offered Grass Fertilized With Different Levels Of Nitrogen, H Valk, A M. Van Vuuren
Mineral Intake And Utilization By Dairy Cows Offered Grass Fertilized With Different Levels Of Nitrogen, H Valk, A M. Van Vuuren
IGC Proceedings (1993-2023)
In four zero-grazing experiments, the effects ofN fertilizer (450 to 300 to 150 kg/ha/yr) on intake and utilization of some grass minerals (Ca, P and Mg), were investigated. Grass was offered ad lib to 12 cows per N treatment. A reduction in N fertilizer resulted in lower mean contents and intakes of Ca and Mg while P content and intake increased in late summer/autumn. The output of these minerals in milk and urine was relatively low. Therefore, a reduced intake of Ca and Mg resulted in a lower faecal output of these minerals. The ratio between intake and requirement varied …
Performance Of Grazing Bull Calves Supplemented With Increasing Levels Of Ruminally Undegradable Portein, J R. Kawas, O Osmin, J Hernandez, R Leal, F Garza, J L. Danelon
Performance Of Grazing Bull Calves Supplemented With Increasing Levels Of Ruminally Undegradable Portein, J R. Kawas, O Osmin, J Hernandez, R Leal, F Garza, J L. Danelon
IGC Proceedings (1993-2023)
The objective of this study was to determine the effect of increasing levels of ruminally undegradable protein (ECP) on the performance of bull calves grazing Coastcross-1 Bermudagrass during the dry season. One hundred and twelve Zebu-Brown Swiss bull calves weighing an average of 265 kg, were randomly assigned to four treatment groups in a completely random design. Calves received a self-feeding supplement (1 kg) with 40% crude protein (CP) and 31, 38, 44, or 52% ECP. During a 96-day preliminary phase without supplementation, weight gains of the four treatment groups ranged from 0.357 to 0.394 kg/day. A linear (P<0.0 I) response of calf weight gain was observed with an increase in ECP of the supplement (0.668, 0.672, 0.823 and 0.893 kg/day, respectively). Plasma urea concentration was reduced (P<0.05) from 17.8 to 9.85 mg/di with the highest level ofECP, which may reflect a reduced supply of NH -N for ruminal bacteria.
Characterization Of Legume And Grass Residues Following In Vitro And In Sacco Ruminal Digestion, D.J R. Cherney, J H. Cherney, A H. Davidson
Characterization Of Legume And Grass Residues Following In Vitro And In Sacco Ruminal Digestion, D.J R. Cherney, J H. Cherney, A H. Davidson
IGC Proceedings (1993-2023)
Objectives were to characterize the influence of forage species and maturity on dry matter degradation. Averaged across maturities, alfalfa and red clover were lower in NDF content (39 and 30% NDF, respectively) than reed canarygrass and timothy (59 and 54% NDF, respectively). The NDF of the DM residues in grass remained relatively unchanged over time, while NDF of the DM residue in legume increased rapidly for 9 h before becoming relatively constant. Alfalfa incubated in vitro (42% NDF) compared to reed canarygrass (58% NDF) contained more ND soluble material (39% vs. 25%), and more pepsin soluble material (22 vs. 18%). …
Intake, Growth And Feed Preference By Steers Fed Combinations Of Alfalfa And Annual Ryegrass Silage, E Charmley
Intake, Growth And Feed Preference By Steers Fed Combinations Of Alfalfa And Annual Ryegrass Silage, E Charmley
IGC Proceedings (1993-2023)
Nutritive value and intake of legumes is generally considered superior to grasses when ensiled at similar digestibility. The objectives of this experiment were to determine the optimum combination of annual ryegrass (Lolium multiflorum) and alfalfa (Medicago sativa) silages to maximize growth rate of steers fed silage, determine chemical components which influenced performance, and to determine if steers selected the optimum mixture when given a choice. Both silages contained similar concentrations of dry matter, acid detergent fibre and organic acids, but alfalfa silage had higher concentrations of nitrogen (N), soluble N and ammonia N. Annual ryegrass contained …
Mineral Contents Of White Clover Grass And Nitrogen Fertilized Grass Pastures For Lambs, R Sormunen-Cristian, P Nykänen-Kurki, J Peltola
Mineral Contents Of White Clover Grass And Nitrogen Fertilized Grass Pastures For Lambs, R Sormunen-Cristian, P Nykänen-Kurki, J Peltola
IGC Proceedings (1993-2023)
The mineral contents (Ca, P, Mg, K, Na, Fe, Cu, Zn, and Mn) of white clover grass without nitrogen and grass-only pastures with annual nitrogen rates of 0, 120 and 250 kg ha-1 were studied in 1994 and 1995. The pastures were grazed twice per season by growing lambs. The white clover contents averaged 25% and 42%, respectively. The Ca and Mg contents and the Ca/P ratio were higher, and the K/(Ca+Mg) equivalent ratio lower in white clover grass than in grass-only swards. The P content of white clover grass was similar to that of grass, and the K content …
A Predictive Model Of Vegetation Dynamics Under Grazing, C.P. D. Birch, B R. Werkman, L W. Partridge
A Predictive Model Of Vegetation Dynamics Under Grazing, C.P. D. Birch, B R. Werkman, L W. Partridge
IGC Proceedings (1993-2023)
This quantitative model predicts changes in the species composition of grazed vegetation. It is based on growth equations for each species represented. The three parameters in each equation represent maximum production rate, maximum standing biomass, and the decline of production rate at high total plant density. Parameters may be varied with environmental factors. The model is generic, but is illustrated using values for four taxa growing under red deer (Cervus elaphus) grazing on the Isle of Rhum, Scotland: bent/fescue grassland (Agrostis/Festuca), purple moor-grass (Molinia caerulea), mat-grass (Nardus stricta) and heather (Calluna …
Interpreting Indicators Of A Transfer Of N From Legume To Grass In Competition Studies, P G. Tow
Interpreting Indicators Of A Transfer Of N From Legume To Grass In Competition Studies, P G. Tow
IGC Proceedings (1993-2023)
The transfer of N from legume to grass in mixtures is important for regulating competition. In competition studies which include both monocultures and mixtures, N transfer should be detectable by grass N measurements but may be masked by competitive reductions in grass growth. In the study reported here, whole plant DM and N were measured in Panicum maximum var trichoglume and Neonotonia wightii grown in monocultures and additively in mixtures. While competition reduced whole grass plant DM and N in mixture relative to monoculture, higher grass shoot % N and N yield in the mixture at early harvests appeared reliable …
Relationship Of Visual And Quantitative Methods Of Grass Sward Development, R B. Mitchell, L E. Moser, K J. Moore
Relationship Of Visual And Quantitative Methods Of Grass Sward Development, R B. Mitchell, L E. Moser, K J. Moore
IGC Proceedings (1993-2023)
The objective of this study was to determine the relationship between visual and quantitative estimates of the morphological development of perennial grass swards. Pure stands of intermediate wheatgrass [Thinopyrum intermedium (Host) Barkw. & D.R. Dewey] and switchgrass (Panicum virgatum L.) were hand-clipped to ground level at 2-wk intervals in 1991 at Mead, NE, morphologically classified as mean stage count (MSC), and visually estimated for sward development. Visual estimations of sward development for both species were representative of quantitative measurements during vegetative growth. However, as sward development advanced to the elongation and heading stages, visual methods over-estimated the population …
Intake And Diet Selection By Sheep Grazing Grass/Clover Patches, I J. Gordon, A W. Illius
Intake And Diet Selection By Sheep Grazing Grass/Clover Patches, I J. Gordon, A W. Illius
IGC Proceedings (1993-2023)
The effects of the spatial dispersion of ryegrass (Lolium perenne L) and clover (Trifolium repens L), at the feeding station scale, on diet composition and feeding behaviour were studied for sheep. There were no significant changes in diet composition with changes in the spatial dispersion of sward components. Bite size, bite rate and intake rate did increase as the species became more aggregated.
Monitoring Productivity And Quality Of Grass-Legume Pastures Under Irrigated Condition, L Tahtacioglu, A Mermer, M Avcy
Monitoring Productivity And Quality Of Grass-Legume Pastures Under Irrigated Condition, L Tahtacioglu, A Mermer, M Avcy
IGC Proceedings (1993-2023)
The performance of six grass-white clover mixtures were evaluated in winter cold zone of Eastern Anatolia. In combination with white clover, ryegrass (Lolium perenne L) cocksfoot, (Dactylis glomerata L) and smooth brome (Bromus inermis Leyss) were used in double and triple plant mixtures. Average DM production ranged from 7.5 to 10 t/ha , with no significant differences observed among the mixed swards. DM production of all mixed swards significantly varied between cutting periods and years. A gradual decrease in DM production was observed both from the first to forth cut and from the first to third year. …
Conservation Of Grass Collections At The Western Regional Plant Introduction Station, V L. Bradley, R C. Johnson
Conservation Of Grass Collections At The Western Regional Plant Introduction Station, V L. Bradley, R C. Johnson
IGC Proceedings (1993-2023)
Germplasm managers at the Western Regional Plant Introduction Station (WRPIS) have focused on improving seed regeneration in forage and turf grass species through studies of diversity maintenance, using isozyme markers in annual ryegrass (Lolium multiflorum Lam.) and through studies of pollen isolation, using strains of dominant pubescent and recessive glabrous smooth bromegrass (Bromus inermis Leyss.). Balanced samples of annual ryegrass (an equal number of seeds per plant) from field plots were best for maintaining allelic frequencies, but genetic diversity (heterozygosity and allelic richness) was maintained nearly as well in bulk samples (seeds proportionally assembled according to seeds per …
Development Of Megathyrsus Maximus Genotypes For Intensification Of Cattle Rearing In Brazil, Liana Jank, M. F. Santos, Sanzio Carvalho Barrios, Cacilda Borges Do Valle, Rosangela Maria Simeão
Development Of Megathyrsus Maximus Genotypes For Intensification Of Cattle Rearing In Brazil, Liana Jank, M. F. Santos, Sanzio Carvalho Barrios, Cacilda Borges Do Valle, Rosangela Maria Simeão
IGC Proceedings (1993-2023)
Megathyrsus maximus is a forage species used over 30 million hectares in Brazil and in the surrounding countries for intensification of the cattle production systems. Due to the large area and distinct biomes in which it is used, there is a need to continuously develop more productive and adapted cultivars to each biome and use. Three apomictic accessions were crossed with five sexual plants at Embrapa Beef Cattle in Campo Grande, MS, Brazil in 2014. More than 1100 hybrids were planted in a spaced-plant field and evaluated visually for regrowth after cuts and for disease and pest damage. In 2016, …
Herbage Accumulation And Mass In Massai Grass Plots Mixed With Forage Peanut And Fertilized With Nitrogen, Carlos A. B. Carvalho, M. O. Leal Junior, P. P. Carneiro, J. V. B. Ramos, N. Schultz, J. C. C. Almeida, A. J. Paiva
Herbage Accumulation And Mass In Massai Grass Plots Mixed With Forage Peanut And Fertilized With Nitrogen, Carlos A. B. Carvalho, M. O. Leal Junior, P. P. Carneiro, J. V. B. Ramos, N. Schultz, J. C. C. Almeida, A. J. Paiva
IGC Proceedings (1993-2023)
The objective of this work was to evaluate herbage accumulation and mass during the growing season of Massai grass mixed with peanut forage and fertilized with nitrogen. The work was carried out at Federal Rural University of Rio de Janeiro, Brazil, from 11/2021 to 03/2022. A randomized block experimental design was used, in plots of Massai grass Megathyrsus maximus, in a factorial arrangement, with seven replications. Four treatments formed by the combination of the presence or absence of Archis pintoi and nitrogen fertilization (0 and 50 kg ha-1 of N). Canopy heights of the plots were evaluated weekly …
A Novel Tractor Operated Grass Seed Harvester Developed In India, Chandra Shekhar Sahay, D. S. Thorat, P. S. Pathak
A Novel Tractor Operated Grass Seed Harvester Developed In India, Chandra Shekhar Sahay, D. S. Thorat, P. S. Pathak
IGC Proceedings (1993-2023)
The demand of green and dry fodder in India is estimated to increase to 1170 and 650 m tonne whereas availability is expected to be at 411.3 and 488 m tonne in 2025, respectively, depicting deficit of about 64.9% green fodder and 24.9% dry fodder (Vision 2030, ICAR - IGFRI, Jhansi, 2011). In forages, availability of quality seed is only 25-30% in cultivated fodder and less than 10 % in range grasses and legumes (Vision 2050, IGFRI). Prices paid for grass seeds of native species vary from Rs.5,000 to 6,500 per kg for clean, un-haired seeds due to excessive use …
Tiller Demography Within Synthetic Grass Populations, K. J. Moore, C. Córdova
Tiller Demography Within Synthetic Grass Populations, K. J. Moore, C. Córdova
IGC Proceedings (1993-2023)
Like other populations of biological organisms, the collective aging structure of a population of grass tillers has meaning and consequences far beyond the development of an individual within it. Using various methods, it is possible to assign numerical indices to tiller development so that it can be described numerically. By sampling a population of tillers and assigning a numerical index to each, the average stage of tillers within a population can be calculated and a repeatable assessment of its development determined. The average or mean stage count (MSC) of tiller development is commonly calculated and used to compare the development …
Sustainable Pastures For The High Altitude Andean Tropics Of Colombia, E. Cárdenas, L. Panizzo
Sustainable Pastures For The High Altitude Andean Tropics Of Colombia, E. Cárdenas, L. Panizzo
IGC Proceedings (1993-2023)
Dairy production systems in the high altitude Andean region of Colombia (>2.600 m.a.s.l.) use large amounts of nitrogen (N) fertilisation. Due to the inefficient use of N by the grass, it contaminates surface and ground water resulting in the eutrophication of lakes and rivers. It contributes to increased atmospheric NOx, greenhouse gas and acid rain. Therefore, the effect of different species of grasses mixed with Lotus corniculatuson N soil balance was evaluated.
The Effects Of Offering Hay, Pit-Stored Grass Silage Or Big-Bale Silage To Pregnant Ewes On Ewe And Lamb Performance, T. F. Crosby, P. J. Quinn, J. J. Callan, T. Mcgrane
The Effects Of Offering Hay, Pit-Stored Grass Silage Or Big-Bale Silage To Pregnant Ewes On Ewe And Lamb Performance, T. F. Crosby, P. J. Quinn, J. J. Callan, T. Mcgrane
IGC Proceedings (1993-2023)
Hay and pit silage have been used extensively for feeding sheep over the winter period, but in recent years, especially on smaller farms, big-bale silage has become increasingly popular. However, there is limited comparative information on the use of big-bale silage for sheep, especially in relation to the effects of chopping and growth stage at harvest. This study compared the performance of ewes offered hay, pit silage, or big-bale grass silage made from either chopped or unchopped grass and cut from the same field at the same time.
The Effects Of Offering Grass Or Maize Silages To In-Lamb Ewes On Body Weight And Condition Changes, Colostrum Yield And Quality, T. F. Crosby, P. J. Quinn, J. J. Callan, P. Reilly, B. Flynn, D. Cunningham, T. Massey
The Effects Of Offering Grass Or Maize Silages To In-Lamb Ewes On Body Weight And Condition Changes, Colostrum Yield And Quality, T. F. Crosby, P. J. Quinn, J. J. Callan, P. Reilly, B. Flynn, D. Cunningham, T. Massey
IGC Proceedings (1993-2023)
Hay and more recently grass silage (GS) have been the traditional feeds for sheep in Ireland over the winter period. Alternatives such as maize silage (MS) are becoming increasingly important as winter forage sources especially for cattle. This study sought to evaluate grass silage and maize silage when offered to pregnant ewes.