scholarly journals The effect of different proportions of Medicago media Pers. in mixtures with Festulolium braunii (K. Richt.) A. Camus on the yield and feed value of green fodder

2019 ◽  
Vol 28 (1) ◽  
Author(s):  
Marzenna Olszewska ◽  
Stefan Grzegorczyk ◽  
Anna Bałuch-Małecka
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Lower Proportion ◽  
Water Soluble ◽  
Soluble Carbohydrates ◽  
Protein Ratio ◽  
Predominant Species ◽  
Green Fodder ◽  
Feed Value ◽  
Full Utilization

A field experiment was performed in 2011–2013. The aim of the study was to determine the effect of different proportions of Medicago media in mixtures with Festulolium braunii on the yield and feed value of green fodder, including the content of crude protein (CP) and water-soluble carbohydrates (WSC), and the carbohydrate-to-protein ratio. It was found that alfalfa had a high competitive advantage over Festulolium. In the second and third year of full utilization, alfalfa was the predominant species in the tested mixtures regardless of the proportion of sown seeds. The mixtures with alfalfa were characterized by high and stable dry matter yields and high protein content, whereas Festulolium significantly increased the content of WSC and improved the WSC:CP ratio. The evaluated mixtures had a higher feed value than pure-sown components. The results of the study indicate that Festulolium mixtures with a lower proportion (30% and 50%) of alfalfa are characterized by a higher feed value.

The assessment of herbage legume varieties. II. In vitro digestibility, water soluble carbohydrate, crude protein and mineral content of primary growth of clover and lucerne

1966 ◽  
Vol 66 (3) ◽  
pp. 351-357 ◽  
Author(s):  
W. Ellis Davies ◽  
G. ap Griffith ◽  
A. Ellington
Keyword(s):  
White Clover ◽  
Crude Protein ◽  
Dry Matter ◽  
Red Clover ◽  
Water Soluble ◽  
Soluble Carbohydrates ◽  
Soluble Carbohydrate ◽  
In Vitro Digestibility ◽  
Primary Growth

The primary growth of eight varieties of three species–white clover (3), red clover (4) and lucerne (1)–was sampled at fortnightly intervals and the percentage dry matter, in vitro digestibility, crude protein, water soluble carbohydrates, P, Ca, K, Na and Mg were determined.Differences between species were nearly always significant and the general order of merit was white clover, red clover and lucerne. The exceptions were for dry-matter percentage where this order was reversed, and red clover had the lowest Na and highest Mg content.

Food intake, digestibility and rumen fermentation in reindeer fed baled timothy silage in summer and winter

1996 ◽  
Vol 127 (4) ◽  
pp. 517-523 ◽  
Author(s):  
T. H. Aagnes ◽  
A. S. Blix ◽  
S. D. Mathiesen
Keyword(s):  
Food Intake ◽  
Crude Protein ◽  
Dry Matter ◽  
Rangifer Tarandus ◽  
Water Soluble ◽  
Soluble Carbohydrates ◽  
Grass Silage ◽  
Apparent Digestibility Coefficient ◽  
Natural Range ◽  
Feeding Trials

SUMMARYReindeer calves(Rangifer tarandus tarandus) were used in parallel feeding trials with two different qualities of round-bale timothy silage in September 1992 (summer) and April 1993 (winter) in northern Norway, to determine the effect of season on their food intake and ability to utilize silage of different fibre contents. The silages were prepared from first-cut (FC) and regrowth (RG) timothy. The FC silage contained (on a dry matter (DM) basis) 12·3% crude protein, 30·4% cellulose and 6·2% water soluble carbohydrates (WSC), whereas the RG silage contained 14·3% crude protein, 18·7% cellulose and 30·0% WSC. For each trial, six male calves were taken directly from a natural range and divided into two groups of three animals. One group was offered FC silage and one RG silagead libitum, for 46 days. Mean daily DM food intake (g/kg liveweight) was not significantly different in summer compared to winter(P> 0·05), but significantly higher in the animals fed RG silage compared to the animals fed FC silage (P< 0·0001). The apparent digestibility coefficient of DM was high for both silages both in summer and winter, ranging from 74·4 to 86·6%. However, the digestibility in winter was significantly higher than in summer(P< 0·002) and the digestibility of RG silage was higher than that of the FC silage (P< 0·009). The ruminal VFA concentration was significantly higher in winter than in summer (P< 0·03) and in the animals fed RG silage (range 55·3–104·9 mM) compared to the animals fed FC silage (range 35·2–61·7 mM) (P< 0·002). In spite of the high digestibility of both the FC and RG silages, the nitrogen balance was significantly higher in the animals in winter compared to summer(P< 0·0001) and in the animals fed RG silage compared to the animals fed FC silage(P< 0·0001). Thus, utilization of grass silage in reindeer appears to be influenced both by season and by plant quality.

scholarly journals The effect of lactic acid additive on the quality and chemical composition of meadow grass silage

2003 ◽  
Vol 19 (3-4) ◽  
pp. 61-69
Author(s):  
Jan Pyś ◽  
Wladislaw Migdal ◽  
Branislav Zivkovic ◽  
Olga Kosovac ◽  
Mihal Fabjan ◽  
...  
Keyword(s):  
Lactic Acid ◽  
Crude Protein ◽  
Dry Matter ◽  
Water Solution ◽  
Water Soluble ◽  
Soluble Carbohydrates ◽  
Total N ◽  
Grass Silage ◽  
Fermentation Quality ◽  
Dominant Grasses

In the experiment, forage from the 1st cut of meadow grasses mown at the heading stage of dominant grasses was ensiled. The control silages were made from fresh forage (dry matter 223.5 g?kg-1) and wilted forage (dry matter 351.9 g?kg-1). The experimental silages were made from fresh forages supplemented with a 5% water solution of lactic acid (0.5 and 0.7 l?100 kg-1 of forage) and 8% water solution of lactic acid (0.4 and 0.6 l?100 kg-1 of forage). The highest contents of crude protein, water-soluble carbohydrates and energy were found in silages supplemented with 5% lactic acid applied at 0.7 l?100 kg-1 of forage and in silages supplemented with 8% lactic acid applied at 0.6 l?100 kg-1 of forage. The above silage variants were also characterized by the lowest content of NH3-N in total-N, butyric acid and acetic acid, as well as the highest contents of lactic acid and the best indicators of fermentation quality. No important differences were found between silages made from wilted forage and silages made with lactic acid supplement.

scholarly journals Grazing Preference of Dairy Cows and Pasture Productivity for Different Cultivars of Perennial Ryegrass under Contrasting Managements

Animals ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 253 ◽  
Author(s):  
M. Jordana Rivero ◽  
Oscar L. Balocchi ◽  
Fabián L. Neumann ◽  
Juan A. Siebald
Keyword(s):  
Dairy Cows ◽  
Perennial Ryegrass ◽  
Crude Protein ◽  
Dry Matter ◽  
Genetic Selection ◽  
Fertilization Rate ◽  
Water Soluble ◽  
Sugar Concentration ◽  
Soluble Carbohydrates ◽  
High Sugar

The objective of this study was to evaluate the pasture performance of different cultivars of perennial ryegrass, two “high sugar” and two standard cultivars, under two contrasting agronomic managements (aimed at either decreasing or increasing water soluble carbohydrates concentration), and their effects on the grazing preference of dairy cows. Eight treatments arising from the factorial combination of four cultivars and two managements were randomly applied to 31-m2 plots in three blocks. Pasture dry matter production and growth rate were measured for one year. Three grazing assessments were performed to establish the grazing preferences of six dairy cows in spring, summer and autumn. High sugar cultivars produced less dry matter per hectare than the standard cultivars. Cows consumed more grass and harvested a greater proportion of the pasture under the agronomic management aimed at decreasing sugar concentration, i.e., with a greater nitrogen fertilization rate and under a more frequent defoliation regime, which could be explained by the greater crude protein concentration achieved under this management. The results suggest that the genetic selection for greater levels of sugars was at the expense of herbage yield, and that cows preferred to graze herbage with a greater crude protein level instead of a greater sugar concentration.

Utilization of nitrogen- and mineral-rich vascular forage plants by reindeer in winter

2002 ◽  
Vol 139 (2) ◽  
pp. 151-160 ◽  
Author(s):  
P. V. STOREHEIER ◽  
S. D. MATHIESEN ◽  
N. J. C. TYLER ◽  
I. SCHJELDERUP ◽  
M. A. OLSEN
Keyword(s):  
Vascular Plants ◽  
Crude Protein ◽  
Dry Matter ◽  
Rangifer Tarandus ◽  
Growing Season ◽  
Water Soluble ◽  
Soluble Carbohydrates ◽  
Forage Plants ◽  
Water Soluble Carbohydrates

The marginal winter pastures of reindeer and caribou (Rangifer tarandus) in Arctic and sub-Arctic areas are assumed to be nitrogen- and mineral-poor. Reindeer eat a mixed diet consisting of nitrogen-deficient lichens and a wide variety of vascular plants in winter. Some reindeer populations manage to maintain carcass mass outside the growing season and very little is known about the ability of reindeer to utilize vascular plants in this season. The chemical composition and in vitro digestibility of 17 species of vascular forage plants and one species of moss collected mid-winter from beneath the snow at an inland winter pasture in northern Norway were determined. Wintergreen parts of graminoids had a high content of crude protein (0.072–0.108 g/kg dry matter (DM)) and water-soluble carbohydrates (0.098–0.167 g/kg DM) and were highly digestible (50–65% IVDMD) compared with the withered parts of the plants (27–53% IVDMD). The digestibility of both shrubs and graminoids was inversely related to content of cellulose and lignin, but positively correlated with increasing contents of water-soluble carbohydrates. Shrubs were relatively calcium-rich (3.6–6.1 g/kg DM) while wintergreen graminoids contained up to 10.0 g/kg DM of potassium, 1.5 g/kg DM magnesium and 2.1 g/kg DM phosphorus. The present study demonstrates that the wintergreen parts of several species of vascular plants are nutritious, containing high levels of nitrogen and minerals, and that they are highly digestible to reindeer in winter. Vascular plants may, therefore, be more important to reindeer and caribou in winter than previously realized.

scholarly journals The composition of pasture grasses at the university farm Viik

1965 ◽  
Vol 37 (2) ◽  
pp. 135-147
Author(s):  
Maija-Liisa Salo
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Sugar Content ◽  
Water Soluble ◽  
Grass Species ◽  
Soluble Carbohydrates ◽  
Meadow Fescue ◽  
Pasture Grasses ◽  
Water Soluble Carbohydrates ◽  
Heading Stage

During the grazing seasons of the years 1961—63 determinations were made on the contents of monosaccharides, sucrose, fructosan, crude protein and ash in various grass species. In 1961 cocksfoot and meadow grass were investigated, in 1962 meadow fescue was included and in 1963 also timothy. Weather observations were also made during the seasons. The following results were established: At the beginning of the grazing season the contents of water-soluble carbohydrates in all the grasses were at a high level, reaching a maximum of slightly over 20 % of the dry matter. This high-sugar level lasted from one to four weeks, depending on the temperature, until the plants began to form flowering heads. At the heading stage the total amount of water-soluble carbohydrates decreased to nearly half of the previous level. During the remainder of the grazing season, or for 3—3 ½ months, the total sugar content was about 8—13 % of the dry matter, dropping sometimes, however, to as low as 6 %. At the end of the dry summer of 1963, higher contents than usual were determined. There were no great differences in the total contents of water-soluble carbohydrates between the different grass species. From the highest to the lowest sugar content, the species were: meadow fescue, meadow grass, cocksfoot. In fact timothy should be ranged as the first but this grass was not sampled from the pasture paddocks. Of the various water-soluble carbohydrates, the sucrose fraction was the largest in most of the samples. Cocksfoot contained less fructosan than the other grasses, and at the heading stage its content of monosaccharides was very high. Of the three years of the study, two were rainy and one was dry. In spite of the differing weather conditions, however, no noteworthy differences in the water-soluble carbohydrate contents were observed. The crude protein content was found to be dependent upon the growth stage. No appreciable differences were observed between cocksfoot, meadow grass and meadow fescue. Timothy, on the other hand, had a lower content of both protein and ash than the three pasture grasses. Contents of cell-wall substances were generally alike during the pasture season. Notable exceptions were evident only in the cases where the samples represented grass at an early growth stage. Meadow grass contained slightly more cell-wall constituents than cocksfoot, e. g. its xylan and crude lignin contents were somewhat higher. Furthermore, the solubility of such constituents in weak acid was slightly less for meadow grass than for cocksfoot.

Nutritional value of alfalfa genotypes at various growth stages

2020 ◽  
pp. 17-24
Author(s):  
В.Г. Косолапова ◽  
С.А. Муссие
Keyword(s):  
Medicago Sativa ◽  
Crude Protein ◽  
Dry Matter ◽  
Nutritional Value ◽  
High Energy ◽  
Water Soluble ◽  
Neutral Detergent Fiber ◽  
Soluble Carbohydrates ◽  
Growth Stages ◽  
Omega 3

В статье представлены материалы отечественных и зарубежных авторов, характеризующие биологические особенности люцерны в зависимости от фазы развития, сортовой принадлежности и в сравнении с другими культурами. В решении проблемы производства энергонасыщенных высокобелковых кормов ей отводится важная роль. Люцерна (Medicago sativa) является важнейшей кормовой и самой распространённой культурой в мире. Она отличается высокой урожайностью, ценными кормовыми характеристиками по протеиновой, витаминной и минеральной питательности. В России площадь посевов люцерны достигает 2,3–2,5 млн га. Онa широко выращивается на территории Центрального и Приволжского экономических районов. Люцерна превосходит многие бобовые и злаковые культуры по содержанию питательных веществ и занимает одно из главных мест в кормопроизводстве Российской Федерации для использования в зелёном конвейере и приготовления сена, сенажа и силоса. Авторами отмечается высокое содержание сырого протеина (в пределах 18–20%) в сочетании с богатым составом аминокислот и омега-3 жирных кислот и энергией (9,9–10,8 МДж в сухом веществе), а также высокое содержание макро- и микроэлементов. В статье проведён обзор научных исследований по оценке питательности люцерны в зависимости от фазы роста, установлено увеличение содержания НДК и КДК в период от бутонизации до полного цветения, снижение содержания протеина, водорастворимых углеводов и переваримости органического вещества. В настоящем обзоре представлены сведения о содержании питательных веществ в листьях и стеблях и отмечены различия в зависимости от сорта растения. Результаты исследований питательной ценности различных сортов люцерны в России, Турции, Польше, Болгарии и Эфиопии показали высокую вариабельность по содержанию сырого протеина, НДК, КДК, сырой золы, сырого жира и переваримости сухого вещества. This paper reports on the biology of alfalfa genotypes at different growth stages described by domestic and foreign literature. Alfalfa has a good potential as a source of high-protein and high-energy feed. Alfalfa (Medicago sativa) is widely cultivated for forage all over the world. This crop has high productivity and is rich in protein, vitamins and mineral elements. In Russia alfalfa fields occupy 2.3–2.5 million ha. Alfalfa is one of the most important crops in the Central and Volga regions. It exceeds most legumes and gramineous in nutritional value and is extensively used for green forage, hay, haylage and silage production. Alfalfa has high concentration of crude protein (18–20%), energy (9.9–10.8 MJ in dry matter), amino acids and omega-3 fatty acids as well as macro- and microelements. The article reviews alfalfa nutritional value as affected by growth stage. Contents of neutral detergent fiber (NDF) and acid detergent fiber (ADF) increases at budding-flowering period while concentrations of protein and water-soluble carbohydrates drops together with organic matter digestibility. This review provides information on leaf and stem nutrients effected by genotype. According to experiments conducted in Russia, Turkey, Poland, Bulgaria and Ethiopia alfalfa genotypes vary significantly in crude protein, NDF, ADF, crude ash, crude fat and dry matter digestibility.

scholarly journals THE EFFECT OF THE HARVEST STAGES AND ADDITIVES ON THE SILAGE VALUE OF THE DIFFERENT SUNFLOWER POPULATIONS

2021 ◽  
Vol 5 (1) ◽  
pp. 57-72
Author(s):  
ZEYNEP GÜL ◽  
Mustafa TAN
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Protein Ratio ◽  
Local Varieties ◽  
Ph Values ◽  
Full Flowering ◽  
Feed Value ◽  
Silage Quality ◽  
Additive Control

The research was carried out in the irrigated trial areas of Atatürk University Faculty of Agriculture in 2009 and 2010. 7 different local sunflower varieties (Edirne-black-seeded, Edirne-white-seeded, Erzurum-black-seeded, Erzurum-white-seeded, Kırklareli-black-seeded, Kırklareliwhite-seeded and Tekirdağ) from 3 different harvest times (table formation, full flowering and seed filling) were examined for silage. In the study, silage was carried out using 5 different additives (additive-control, 10% barley, 10% straw, 5% molasses, 1% salt). Dry matter ratio, crude protein ratio, ADF ratio, NDF ratio, relative feed value and pH values ​​were determined in silage. The results showed that local varieties, form times and additives have important effects on silage quality of sunflower. Using barley and molasses as additives significantly improves silage quality. Although the delay in form time decreased the crude protein ratio and increased the ADF and NDF ratios, it improved the dry matter ratio and silage pH.

scholarly journals The quality of the forage eaten by Norwegian reindeer on South Georgia in summer

Rangifer ◽  
2000 ◽  
Vol 20 (2-3) ◽  
pp. 17 ◽  
Author(s):  
Svein D. Mathiesen ◽  
Tove H. Aagnes Utsi
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Plant Cell Wall ◽  
Lignin Content ◽  
Rumen Fluid ◽  
Phleum Pratense ◽  
Water Soluble ◽  
Soluble Carbohydrates ◽  
High Quality ◽  
South Georgia

The chemical composition and digestibility of plants selected by Norwegian reindeer (Rangifer t. tarandus) on the sub-Antarctic island of South Georgia (SG) were investigated in the austral summer and compared with two qualities of standard grasses of Phleum pratense of European origin. Paridiochola flabellata, Poa pratense, Poa annua, Deschampsia antarctka, and Phleum alpinum collected on SG contained 14.8, 17.6, 22.8, 16.1 and 10.1% respectively of crude protein of dry matter (DM). Aceana magellanica also collected on SG contained 19.8% of crude protein and 18.8% of water-soluble carbohydrates (WSC) of DM, while the tussock grass P. flabellata, contained as much as 29-3% of WSC of DM. Total plant cell-wall contents (CWC), including cellulose, hemi-cellulose and lignin in P. flabellata, P. pratense, P. annua and P. alpinum were 53.2, 49.6, 41.7 and 40.4% of DM respectively, while A. magellanica contained only 17.5% of DM CWC. The lignin concentrations of plants analysed varied between 1.2 and 3.2% of DM. Mean in vitro dry matter digestibility (IVDMD) of selected plants ranged from 70% in P. flabellata to 83% in P. alpinum after 48 h incubation in rumen fluid from these reindeer. In contrast, the IVDMD of the poor and high quality standard grass Phleum pratense were 54% and 73% of DM, respectively. The forage eaten by reindeer on SG in summer was of high quality, with low lignin content, moderate protein concentration and high degradability in rumen fluid.

Utilization of grass-silage nitrogen by growing sheep

1983 ◽  
Vol 100 (1) ◽  
pp. 43-62 ◽  
Author(s):  
Elisabeth Grenet
Keyword(s):  
Organic Matter ◽  
Formic Acid ◽  
Nitrogen Balance ◽  
Crude Protein ◽  
Nitrogen Loss ◽  
Nitrogen Retention ◽  
Protein Digestibility ◽  
Water Soluble ◽  
Nitrogen Intake ◽  
Green Fodder

SUMMARYThe digestibility, the voluntary intake and the nitrogen balance of 108 diets corresponding to 94 silages prepared from 20 fresh crops were measured in growing sheep. Series of silages were made from the same fresh forage. Each series included two controls: a direct-cut silage without additive and a direct-cut silage with formic acid, with a variable number of experimental silages with different additives.Rumen ammonia concentration, measured on rumen-fistulated sheep, decreased when an additive was used. It increased with nitrogen intake and was inversely related to the organic-matter digestibility and the crude-fibre digestibility. It varied with the silage composition.The crude-protein digestibility of direct-cut silages without additives was similar to or slightly higher than the crude-protein digestibility of the fresh crops. The addition of formic acid depressed the digestibility, but the addition of formaldehyde decreased it even more. The urinary nitrogen loss was higher for silages without additive than for the fresh crops and was decreased by the addition of formic acid. The addition of formaldehyde to formic acid had an additive effect.Retained nitrogen was lower in silages without additives (12% of nitrogen intake) than in parent crops (15·7%). It increased when formic acid (15·8%) was added. The addition of formaldehyde at a low rate (1·5 l/t green fodder) to the formic acid did not increase the nitrogen retention whether expressed in g/day or as percentage of nitrogen intake, but the addition of formaldehyde at a high rate (3·5 l/t green fodder) to formic acid decreased nitrogen retention. The other additives based on cereals or whey did not improve the nitrogen balance compared with formic acid. Nitrogen retention differed according to plant species.Retained nitrogen increased with digestible organic-matter intake and nitrogen intake. It increased with the silage water-soluble carbohydrate content. The higher the silage fermentation product content (ammonia, lactic acid, propionic acid), the lower the retained nitrogen. It appears that the nitrogen value of silages can be high provided that the silages are well preserved and that excessive protein breakdown is avoided.

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