scholarly journals Chemical composition of hay produced from three different drying techniques

2021 ◽  
Vol 48 (3) ◽  
pp. 142-153
Author(s):  
I. A. Ewetola ◽  
K. O. Adebayo ◽  
A. A. Amisu ◽  
S. O. Jimoh ◽  
P. A. Dele ◽  
...  

Sporadic change in weather condition has posed serious threat to hay production which has been considered to be the simplest means of conserving forage during the period of abundance. In order to maximize opportunity of ensuring that forage is conserved with less weather  dependent  technique,  an  experiment  was  conducted  to  evaluate  chemical composition of hay produced from three different drying techniques stored for a period of 90 days in South-west Nigeria. The experiment comprises three factors namely: Four fertilizer types, two grass species and three drying techniques forming 4 x 2 x 3 factorial arrangement, having 24 total treatments combinations replicated thrice. The fertilizer types were N.P. K. 20:10:10 (NPK), Aleshinloye organo-mineral (AOM) and poultry manure (PM) and a control. These were applied at the rate of 120 kgN/ha based on their nitrogen content. The grasses were Panicum maximum (Ntchisi) and Andropogon tectorum which were harvested at 8 weeks after cutting back (8WAC) in early dry season period in the year 2016. The three drying techniques were oven drying, solar drying and conventional drying. The results presented shows that solar dried hay were observed to produce the highest significant (P<0.05) crude protein (CP) (9.50, 8.81 and 8.41%) at 0, 6 and 12 weeks after storage (WAS), respectively. Meanwhile, the highest (P<0.05) ash (9.77 %) was observed in conventional dried hay at 6 WAS. The highest (P<0.05) ether extract (EE) (5.92%) was obtained in conventional dried hay at 12 WAS. The highest (P<0.05) Non Fibre Carbohydrate (NFC) values (23.35, 29.19 and 44.41%) were observed in conventional dried hay, while the lowest (P<0.05) NFC values (10.42, 25.12 and 37.55%) were obtained in solar dried hay at 0, 6 and 12 WAS, respectively. The highest (P<0.05) Neutral Detergent Fibre (NDF) (58.08 and 48.83%) were observed in oven and solar drying techniques at 0 and 6 WAS respectively. Conventional dried hay had the highest ADL (14.58%) at 12 WAS. The highest (P<0.05) hemicellulose (16.17 and 24.58%) were recorded in solar dried hay at 0 and 6, WAS respectively. In conclusion, solar drying technique produced best hay having the highest CP content throughout the sampling periods, although the CP content was decreased as the storage progresses, but it still retained the CP content beyond the recommended rate for optimum animal performance.     Les changements sporadiques dans les conditions météorologiques ont posé une grave menace à la production de foin, qui a été considérée comme le moyen le plus simple de conserver le fourrage pendant la période d'abondance. Afin de maximiser les possibilités de s'assurer que le fourrage est conservé avec une technique moins dépendante des conditions météorologiques, une expérience a été menée pour évaluer la composition chimique du foin produite à partir de trois techniques de séchage différentes stockées pendant une période de 90 jours dans le sud-ouest du Nigéria. L'expérience comprend trois facteurs: quatre types d'engrais, deux espèces d'herbe et trois techniques de séchage formant 4 x 2 x 3 arrangement factorial, ayant 24 combinaisons totales de traitements répliquées trois fois. Les types d'engrais étaient N.P. K. 20:10:10 (le 'NPK'), Aleshinloye organo-minéral (le 'AOM') et fumier de volaille (le 'PM') et un contrôle. Ceux-ci ont été appliqués à un taux de 120 kgN/ha en fonction de leur teneur en azote. Les graminées étaient panicum maximum (Ntchisi) et Andropogon tectorum qui ont été récoltées à 8 semaines après la coupe (8WAC) au début de la saison sèche en 2016. Les trois techniques de séchage étaient le séchage au four, le séchage solaire et le séchage conventionnel. Les résultats présentés montrent que le foin séché solaire a été observé pour produire la protéine brute (CP) la plus importante (P<0.05) (CP) (9.50, 8.81 et 8.41 %) 0, 6 et 12 semaines après le stockage (WAS), respectivement. Pendant ce temps, les cendres les plus < (P<0.05) (9.77 %) a été observé dans le foin séché conventionnel à 6 WAS. Extrait d'éther (P<0.05) le plus élevé (EE) (5.92 %) a été obtenu dans le foin séché conventionnel à 12 WAS. Les valeurs les plus élevées (P<0.05) non fibre de carbone (NFC) (23.35, 29.19 et 44.41 %) ont été observées dans le foin séché conventionnel, tandis que les valeurs NFC les plus faibles (P<0.05) (10.42, 25.12 et 37.55 %) ont été obtenus dans le foin séché solaire à 0, 6 et 12 WAS, respectivement. Fibre détergente neutre (NDF) la plus élevée (P<0.05) (NDF) (58.08 et 48.83 %) ont été observés dans les techniques de séchage au four et solaire à 0 et 6 WAS respectivement. Le foin séché conventionnel avait l'ADL le plus élevé (14.58%) à 12 WAS. L'hémicellulose la plus élevée (P<0.05) (16.17 et 24.58 %) ont été enregistrés dans le foin séché solaire à 0 et 6, WAS respectivement. En conclusion, la technique de séchage solaire a produit le meilleur foin ayant la teneur en CP la plus élevée tout au long des périodes d'échantillonnage, bien que la teneur en CP ait diminué au fur et à mesure que l'entreposage progresse, mais elle a tout de même conservé la teneur en CP au- delà du taux recommandé pour une performance optimale des animaux.

1969 ◽  
Vol 59 (3) ◽  
pp. 186-198
Author(s):  
J. A. Arroyo-Aguilú ◽  
S. Tessema ◽  
R. E. McDowell ◽  
P. J. Van Soest ◽  
A. Ramírez ◽  
...  

Samples from five tropical grass species: Guinea (Panicum maximum), Pangola (Digitaria decumbens), Congo (Brachiaria ruziziensis), Merker (Pennisetum purpureum), and Star (Cynodon nlemfuensis), were harvested during nine weeks at ages from 7 to 63 days in southwestern Puerto Rico. The grasses were fertilized at the rate of 4480 kg/ha per year with a 15-5-10 fertilizer. The crude protein content of all grasses exceeded 10 percent up through 28 days of regrowth. Grasses declined in crude protein from a mean of 18.1 percent at 7 days to 5.6 percent at 63 days. A narrower range was observed between grasses from 42 to 63 days. The five tropical grasses possessed high contents of structural carbohydrates, principally cellulose and lignin, which increased with age, except in Pangola grass. Silica did not change uniformly with age in any of the grasses while hemicellulose was characterized by marked fluctuations. Digestibility values were lower at all stages of growth than in temperate forages of similar ages. Cellulose was negatively correlated with in vitro digestibility in all grasses except Pangola. Lignin appeared to be the predominant factor in determining digestibility. The relationship of silica to digestibility varied between species, being positive in some (Guinea and Congo) and negative in others (Star, Pangola, and Merker). The grasses may be ranked as follows with regard to their chemical composition and digestibility: Merker > Congo > Star > Guinea > Pangola. Pangola grass, though lowest in in vitro digestibility, declined least with advancing age, thus maintaining a more constant quality for a longer period of time.


1967 ◽  
Vol 69 (2) ◽  
pp. 155-160 ◽  
Author(s):  
W. L. Johnson ◽  
W. A. Hardison ◽  
L. S. Castillo

The results of more than fifty estimates1 of herbage yield and ninety-seven analyses of chemical composition are presented in the first of several reports on nutritive evaluation studies of Panicum maximum (guinea grass). Effects of stage of maturity and season are discussed.Herbage yield increased at an increasing rate with maturity, and was depressed by about 40 % in the dry season compared to the wet season. The most significant differences in chemical composition were a decrease in crude protein from 9·8 % to 6·6% and a corresponding increase in crude fibre from 32·1 % to 39·4% as the grass matured from about 2½ weeks to about 2½ months in age. An increased level of nitrogen fertilization resulted in crude protein content being nearly doubled and crude fibre somewhat reduced.


2014 ◽  
Vol 94 (4) ◽  
pp. 705-715 ◽  
Author(s):  
J. I. Arroquy ◽  
M. V. Cornacchione ◽  
D. Colombatto ◽  
C. Kunst

Arroquy, J. I., Cornacchione, M. V., Colombatto, D. and Kunst, Jr., C. 2014. Chemical composition and in vitro ruminal degradation of hay and silage from tropical grasses. Can. J. Anim. Sci. 94: 705–715. This study was conducted to evaluate the effects of preservation type on chemical composition and in vitro ruminal degradation of warm-season grasses (WSG). Treatments consisted of two factors (6×2): the first factor was tropical grasses: Cenchrus ciliaris (cv. Biloela, and cv. Molopo), Chloris gayana (cv. Callide and cv. Finecut), Panicum maximum, and Brachiaria bryzanta; and the second factor was preservation type (hay vs. silage). Cell wall, hemicellulose, cellulose, and water-soluble carbohydrate (P<0.05) concentrations were different among WSG. In general, hay or silage altered fiber content compared with fresh. For instance, hemicellulose and cellulose contents were lower in silage than in hay and fresh grass (P<0.05). Gas production rates were higher in silage from 0 to 24 h of fermentation, except at 4 h of incubation. After 24 h, gas production (GP) rate was similar for both preservation types, whilst potential GP was similar between preservation types. However, silage had decreased lag time compared with hay (P<0.01). Silage had greater dry matter disappearance than hay (P<0.05), and gas production yield was similar for grass species and preservation type. Our results indicate that WSG conserved as silage showed beneficial changes in chemical composition and dry matter degradation compared with hay.


1960 ◽  
Vol 55 (3) ◽  
pp. 339-350 ◽  
Author(s):  
V. A. Oyenuga

1. The effects of the stage of growth and frequency of cutting on the yield and chemical composition of Panicum maximum Jacq., under the tropical humid conditions prevailing in Ibadan area were studied in the season 1953 to 1954. The cutting frequencies adopted were seventeen, eight, six and four times harvesting a year which corresponded respectively to a growing period of 3, 6, 8 and 12 weeks before the plants were cut.2. It was shown that Guinea grass gave the highest growth rate and cumulative green fodder yield (approximately 28 tons per acre) per year when allowed a 12-weekly growth cycle. Cutting the grass every 3 weeks gave a total minimum yield of 20 tons per acre. 6-weekly samplings resulted in higher green fodder yield than cutting it every 8 weeks. Such yield differences which exist among the various cutting treatments, however, are not statistically significant. When yields of edible (leafy) green fodder were considered, the order of superiority was 3-weekly > 6-weekly > 12-weekly > 8-weekly.It was shown that the increased yield of green and dry fodder obtained from the 12-weekly cut grass was made up of both fresh regrowth as well as of grasses which had been growing for 12 weeks.3. P. maximum contains a fairly high percentage of dry matter and this increased directly with the length of cutting intervals. Dry-matter yields, like those of green fodder, were highest for the 12-weekly harvested material, followed in order by the 6-weekly cut, the 8-weekly cut and the 3-weekly cut samples. However, the production of leaves and the accumulation of dry matter in them, are inversely related to the length of growing interval up to and including grasses allowed 8-weekly growing periods.4. The stems of P. maximum tend to mature more rapidly than the leaves, particularly at a growing stage of between 3 and 6 weeks of age. At between the 8 and 12 week growth stages, the development of the stem of P. maximum in relation to that of its leaves was not as rapid as observed in the case of either P. purpureum or of Andropogon tectorum.5. The percentage dry matter, nitrogen-free extract, ether extract and calcium are directly related, while those of crude protein, silica-free ash, phosphorus and magnesium, are inversely related to the length of cutting intervals. It was also shown that the mean percentage crude protein of Guinea grass of about 12 at 3 weeks of growth, declined by 45% to 6·4 when the grass was cut every 12 weeks. The grass contains a high amount of magnesium, a reasonably high amount of calcium, but a somewhat low content of phosphorus, a fact which accounts for the wide calcium to phosphorus ratio. This ratio widened with the length of cutting intervals.6. When Panicum maximum was cut at 3 -weekly intervals, it produced 69·3% more protein, 58·5% more silica-free ash, 32·3% more calcium, 49·6% more phosphoric acid, 71% more magnesium and higher amounts of carbohydrate and total nutrient material than when it was allowed to grow for 8 weeks. Similarly when the grass was allowed a 12-weekly growth cycle, it produced 35% more of total nutrient, 36·5% more of carbohydrate material and 62·2% more of calcium than when it was sampled every 8 weeks. It appears totally unprofitable from the point of view of yield of chemical constituents to subject P. maximum to a growth cycle of 8 weeks.7. Yields of green and dry matter and the percentage crude protein, silica-free ash, and nitrogen-free extract are directly related to the degree of precipitation. In general periods of high rainfall were accompanied by higher yields and percentage content of these constituents, while periods of low rainfall gave rise to smaller yields. The percentage content of crude fibre, on the other hand, was inversely related to rainfall.


Agronomy ◽  
2020 ◽  
Vol 11 (1) ◽  
pp. 52
Author(s):  
Ntokozo Happy Msiza ◽  
Khuliso Emmanuel Ravhuhali ◽  
Hilda Kwena Mokoboki ◽  
Sydney Mavengahama ◽  
Lebogang Ezra Motsei

The establishment of complementary native grass species could be an ideal method of dealing with existing problems of veld degradation and inadequate forage quantity and quality of pastures. A greenhouse experiment was conducted to evaluate the effect of native grasses viz., Anthephora pubescens, Cenchrus ciliaris, Chloris gayana, Dactylis glomerata, Digitaria eriantha, Eragrostis curvula, Festuca arundinacea, Panicum maximum and Themeda triandra. Attributes at different growth stages on agronomy, morphology and chemical composition were checked. Panicum maximum had the broader (p < 0.05) leaves across all growth stages when compared to all other grass species. Festuca arundinacea had highest (p < 0.05) number of tillers than C. ciliaris, C. gayana, D. glomerata, D. eriantha, E. curvula, P. maximum and T. triandra at 2–4-months age. Within each species, all grasses had the highest (p < 0.05) number of leaves at maturity. Chloris gayana, D. glomerata and P. maximum had the highest (p < 0.05) biomass yield when compared to F. arundinacea at the elongation stage. Eragrostis curvula had the highest (p < 0.05) crude protein (CP) values when compared to all other grasses, except for D. glomerata, F. arundinacea and P. maximum at the elongation stage. Panicum maximum and T. triandra had the least (p < 0.05) acid detergent lignin (ADL) values when compared to all other grasses at both vegetative and the elongation stages. In the ranking, C. ciliaris, C. gayana, D. eriantha, E. curvula, P. maximum and A. pubescens outperformed the rest of the grasses on most parameters. With the low crude protein (CP) content of these grasses, protein supplementation is highly crucial for high performing ruminants, especially those animals that graze grasses as their sole diets.


2020 ◽  
Vol 47 (3) ◽  
pp. 309-322
Author(s):  
I. A. Ewetola ◽  
A. A. Amisu ◽  
S. O. Jimoh ◽  
T. O. Muraina ◽  
J. A. Olanite ◽  
...  

The use of inorganic fertilizers has been reported to have improved pasture productivity, however it has also attributed to soil toxicity, environmental pollution, mineral imbalance, and health hazards among many adverse effects. This made the adoption of organic fertilizers became best alternative to correct nutrients deficiencies in the soil due to their environmental friendly nature and less cost effectiveness. To investigate the comparative advantages of these two types of fertilizer, an experiment was conducted to evaluate the influence of fertilizer types on the nutritive quality of Panicum maximum var. Ntchisi and Andropogon tectorum harvested at 6 and 8 weeks during the wet season. The study was a factorial experiment (4 x 2 x 2), arranged in a split-split-plot design with three replicates. There were 16 treatments to include; fertilizer types (NPK, Aleshinloye organo-mineral fertilizer, poultry manure and control (no fertilizer)), grass species (Panicum maximum var. Ntchisi and Andropogon tectorum) and age at harvest (6 and 8 weeks). Fertilizer treatments were allotted to the main plots while grass species were allotted to sub-plots and again harvest age was allotted to sub-subplots. Sub-samples taken from harvested forage materials were oven dried, properly milled and analysed in the laboratory to determine proximate composition [crude protein (CP%), ash, ether extract (EE%)], fibre fractions [acid detergent fibre (ADF%), neutral detergent fibre (NDF%), acid detergent lignin (ADL%), Cellulose, and Hemicelluloses) and in vitro gas production. Fertilizer types significantly (P<0.0.5) affected ADF, hemicellulose, cellulose and methane (CH4). The grasses fertilized with NPK had the highest value (9.00mL) for CH4. Poultry manure (PM) fertilized grasses recorded the highest value for in vitro dry matter digestibility (IVDMD) (89.38%). Andropogon tectorum fertilized with PM harvested at 6 weeks recorded the highest value for IVDMD (93.00%) and the same grass fertilized with NPK, harvested at 6 weeks recorded the highest values (0.37 mL and 4.70%) for short chain fatty acid and metabolizable energy, respectively. Therefore, this study established that fertilizer applications had an influence on fibre fraction, methane and post-incubation parameters of the grasses investigated.


2021 ◽  
Vol 4 (1) ◽  
pp. 133-158
Author(s):  
F. O. Olubajo

Four grass species namely: Cynodon nlemfuensis var robustus (M); Pennisetum purpureum Schum (N); Cynodon nlemfuensis var nlemfuensis (P); and Panicum maximum Jacq. (Q), each between the 4th and 5th, 6th and 7th, and 8th and 9th week of regrowth, was cut in the fourth and fifth years of grazing for hay (i. e. in 1972 and 1973). Digestion trials with West African dwarf sheep showed that there were significant differences in the extent to which the dry matter of the different grass species was digested (P 0.001) and among the stages of growth (P 0.01). The differences between animals within and between treatments and the interactions between treatments and periods of cutting were statistically not significant. The differences among treatment means indicated that treatment Q (68.5 ± 2.73%) was digested better than treatment M (54.9 ± 7.18%, P 0.001), and treatments N and P (60.3 ± 5.37% and 58.7 ± 5.30% P 0.01) respectively. The digestibility of crude protein was generally low in each of the grass specie studied. This is probably a reflection of the low crude protein content of the grass hays which was below 9 percent of dry matter. It ranged from approximately 27.3 percent in treatment N for the 6th week regrowth hay to 51.9 percent in treatment Q for the hay harvested in the 8th week of regrowth. The differences among treatments, stage of maturity, and the interactions between treatments and stage of cutting were not statistically significant. Significant differences between treatments were observed in the digestion of the energy content of the feeds (P 0.001). Treatments N and Q were better digested than M and P (P 0.05). Expressed on metabolic size basis, the intakes of dry matter, crude protein, and energy showed significant differences between treatments and between ages at harvest. The intakes of dry matter in treatments Q, M, and P were significantly higher (P 0.05) than treatment N while there was more dry matter taken from the 4th and 8th week hays than from the hays made from the species harvested in the 6th week of regrowth (P 0.01). More crude protein was consumed per kg0.75 in treatments M, P and Q than in treatment N (P 0.01), and in treatment M than Q (P 0.05). There were higher protein intakes from hays made in the 4th and 8th than those made in 6th week of regrowth (P 0.05). Treatment Q supplied more energy per kgl. 75 than treatments M, P and N (P 0.05), while more energy was consumed per kilogramme of metabolic size in treatment P than in treatment N (P 0.05). Nutritive Value of Hay. The intake of digestible crude protein was relatively low and this probably accounted for the losses in the liveweight of the experimental animals. The results of the experiment are suggestive of the need for supplementary protein feed during the dry season if animals are to make any liveweight gains.


2014 ◽  
pp. 179-190
Author(s):  
Lolito Bestil ◽  
Angelo Francis Atole ◽  
Jandells Rama

This study assessed the chemical composition and degradation of in situ predominant feed resources for ruminants in the marginal uplands of Inopacan,Leyte, Philippines. These feed resources included basal grasses such as guinea (Panicum maximum), humidicola (Brachiaria humidicola), and carabao grass (Axonopus compressus); supplemental legumes such as calopo (Calopogonium muconoides), madre de cacao (Gliricidia sepium) and centro (Centrocema pubescens); foliages of trees/shrubs such as jackfruit (Artocarpus heterophylum Lamk) and abgaw (Premna odorata); and concentrates such as rice bran (D2) and squeezed grated coconut. Chemical analyses followed standard procedures, while trial was done by in situ incubating the feed samples in rumen-cannulated steer fed 70% basal/grass and 30% of the supplements. Crude protein (CP) contents were 15.83 to 18.23% in legumes,10.17 to 11.91% in tree foliages, 5.16 to 8.51% in grasses, and 4.84 to 6.08% in concentrates on as-fed basis. Gross energy (GE) contents were high–5097kcal/kg in grated coconut (highest) and 2931 kcal/kg in humidicola grass (lowest). Calcium (Ca) and phosphorus (P) contents were low, ranging from 0.004 to 0.189% Ca and 0.026 to 0.037% P. Considering animal requirements, these indicated a potential adequacy in GE supply but a limitation in protein and Ca and P in marginal uplands. Dry matter degradation (DMD) was high in grated coconut, abgaw, calopo and madre de cacao (77.86 to 86.51%) among the supplements and in carabao grass (71.11%) of the basal, and low in humidicola and rice bran D2 (46.52 to 47.51%). Crude protein degradation (CPD) was highest in abgaw, calopo, madre de cacao, jackfruit and grated coconut (86.87 to 90.97%), moderate in guinea and carabao grasses and rice bran D2 (61.28 to 64.01%), and low in centro and humidicola (57.46 to 59.63%). Quantitatively, and across chemical composition and in situ degradation, the feeding of humidicola grass, centro legume, and rice bran D2 is least recommended.


2021 ◽  
Vol 15 ◽  
pp. 71-75
Author(s):  
T. A. ADEGBOLA ◽  
I. MECHA

The chemical composition of the leaves of three trees, Acioa baneri, Anacardium occidentale (Cashew) and Mangifera indica (Mango) and an herb, Aspillia africana (Hemorrhage plant), their dry matter intake (DMI, g/day) and digestibilities (%) of dry matter (DM), organic matter (0M), crude protein (CP) a crude fibre (CF) were determined in West African dwarf goats. The chemical composition of three grass species, Andropogon gayanus (Guinea grass), Cynodon nlemfuensis (Giant star grass) and Panicum maximum (Guinea grass was also determined to compare with those of the browses. The browses had higher CP (8.1-31.3%), acid detergent lignin (6.9-15.1%), Calcium (0.5-2.3%) and lower CF (9.6-23.5%) than the grasses which had 3.2-4.9% CP, 4.3-8.1% lignin, 0.43- 0.53% Ca and 24.4-28.1% CF. The consumption of fresh forages (g/d) varied from 193 on Acioa baneri to 918 on Aspilia africana. The highest DM intake was obtained on Aspilia africana, Apparent digestibility values (%) were: DM, 59.9&69.7; OM, 61.0-71.1; CP. 40.9-68.2 and CF, 39.3-64.9. Acioa batereri was the least digested of the forages. The higher CP content of the browses and their availability and acceptability by goals during the dry season in contrast 10 the low CP of the grasses indicates their potential for feeding goats. Acioa barteri is unsuitable as sole food for goats


1987 ◽  
Vol 67 (3) ◽  
pp. 735-746 ◽  
Author(s):  
P. GERVAIS ◽  
J. M. GIRARD

A 3-yr study on height and frequency of cutting showed that alfalfa (Medicago sativa L.) cut at 5 cm from the soil produced significantly more dry matter per hectare than that harvested at 10 cm, but the differences between the two heights decreased with the years and the frequency of cutting. Forages cut at either height had similar mineral composition at any one cutting. However, the percentages of cell walls and of lignocellulose were, in general, highest in alfalfa cut at 5 cm. Height of cutting did not affect the stand nor the accumulation of food reserves in the roots in the fall. The two-cut system gave a uniform production from year to year and maintained the stand at a high level. The three-cut system, the last cut taken in October, yielded the highest yields of dry matter and of crude protein while the four-cut system produced the least and had the thinnest stand at the end of the experiment. Frequency of cutting gave rise to significant variations in the chemical composition of the forages, variations resulting from the difference in the stages of growth at harvest. In general, alfalfa cut at a younger stage exhibited a more valuable composition than that harvested at a later stage. Food storage in the roots varied with frequencies, being highest with the two-cut system and lowest with the four-cut system.Key words: Alfalfa, height and frequency of cutting, yield, chemical composition, food reserves


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