scholarly journals In vitro fermentation and chemical constituents of urea-molasses feed - blocks made with different binders for ruminants.

2021 ◽  
Vol 39 (2) ◽  
pp. 142-149
Author(s):  
O. A. Isah

This study was carried out to assess the chemical contents, in vitro break down, volatile fatty acids, NH3¬-N and methane concentration of urea- molasses feed - block (UMFB) using different binders. Four feed - blocks were formulated as: UMFB A (Cement only), UMFB B (cement + clay), UMFB C (cement + cassava starch), and UMFB D (cassava starch + clay). The feed - blocks were incubated in vitro for 48 hours to assess gas production and other in vitro- ecology parameters. Results of chemical analysis revealed that UMFB C (21.70%), and B (21.65%) had highest (p< 0.05) crude protein content while UMFB D (18.62%) had lowest value. Intermediate crude protein content was recorded for UMFB A (19.58%). However, highest (p<0.05) values of ADF (16.8%) and ADL (15.5%) were recorded for UMFB D. Similar value of ADF (16.70%) and ADL (15.3%) were recorded also for UMFB B. The NDF value of feed - block A (34.6%) was highest (p<0.05) while lowest value of NDF was recorded for UMFB D (32.1%). Production of volatile fatty acids indicated that propionic acid (30.5%), oleic acid (11.3%,) and lactic acid (36.5%) were highest (p<0.05) for UMFB D. Concentration of NH3-N was highest in UMFB B while significant difference (p>0.05) was not observed in the pH and methane values for various UMFB. Highest in vitro digestibility of organic matter was observed in UMFB D. The study showed that the various feed - blocks could serve as a sustainable supplement during dry season and period of scarcity for the ruminants.

1980 ◽  
Vol 60 (3) ◽  
pp. 807-811 ◽  
Author(s):  
R. S. FULKERSON

Midas marrowstem kale (Brassica oleracea L.) was grown in different row width associations with United 106 corn (Zea maize L.) in two studies and ensiled in different moisture blends with corn stover in another. Highest dry matter yields were obtained where a single row of kale was grown at 30 cm to the side of a corn row. This combination also provided the lowest moisture content feed and the highest in vitro digestibility and crude protein content. Changing the corn row width had no significant effect upon yield, plant height, in vitro digestibility, kale leaf or corn ear content. Blending kale with corn stover to provide a silage of about 70% moisture increased the digestibility and protein content of the feed and provided a silage that kept well in storage.


1992 ◽  
Vol 6 (1) ◽  
pp. 25-30 ◽  
Author(s):  
Douglas J. Doohan ◽  
Gilles Belanger ◽  
Russ R. King ◽  
Jerry A. Ivany

Fluazifop-P, applied in the spring or fall and pronamide, applied in the fall only, reduced quackgrass infestation in established alfalfa and increased the dry matter yield of alfalfa. Herbicides did not improve alfalfa in vitro digestibility or crude protein content. Average residues of fluazifop-P in alfalfa treated with rates of 0.25 or 0.5 kg ai ha–1, were 0.1 mg kg–1when harvested 280 d after application, and 0.06 mg kg–1when harvested 295 d after application. Average residues in alfalfa harvested 41 and 55 d after application were 0.13 mg kg–1and 0.1 mg kg–1, respectively, with a 0.25 kg ha–1treatment and 0.19 mg kg–1and 0.05 mg kg–1, respectively, with a 0.5 kg ha–1treatment.


2021 ◽  
pp. 094-098
Author(s):  
Musa Tibin Musa Ahmed

This study was carried out to determine chemical composition and in vitro dry matter and organic matter digestibility of range plant species of the area. Samples were collected from range lands at full maturity stage, dried under shade and subjected to chemical analysis and dry matter and organic matter in vitro digestibility for Vigna sunhum, Andropogan gayanus, Pennisetum Pedicelatum, Shoenfeldia gracilis and Stylothanis flavicans were determined. The data was analyzed via analysis of variance and differences among means were determined using Least Significant Difference (LSD) test. The results showed that the legumes (Vigna sunhum and Stylothanis flavicans) were significantly higher (P≤0.01) in their crude protein content and the percentage of crude protein respectively was 13.4% and 10.00% while the grasses were significant (P≤0.05) higher in Crude Fibre (CF), ash, Acid Detergent Fibers (ADF) and Neutral Detergent Fibers (NDF). Crude fiber % values were 41.78, 43.37 and 46.07% for Pennisetum Pedicelatum, Andropogan gayanus and Shoenofeldia gracilis, respectively. The acid detergent values were 53.85, 47.74 and 53.39 for the three weeds. (P≤0.05), while the ratio of neutral detergent was significantly higher (P≤.05) in grasses than in the two legume species; 87.22, 82.35 and 88.99% for the three grasses respectively. Similarly higher in vitro dry matter and organic digestibility coefficients were obtained from legume species than grasses. The study concluded that, the studied grasses were higher in fiber content and lower in their protein content but, legumes grasses (Vigna sunhum, Pennisetum Pedicelatum and Stylothanis flavicans) had high nutritive value and in vitro digestibility which may provide ruminants with the needed protein and energy.


Author(s):  
Francisco Duarte FERNANDES ◽  
Roberto GUIMARÃES JÚNIOR ◽  
Eduardo Alano VIEIRA ◽  
Josefino de Freitas FIALHO ◽  
Juaci Vitória MALAQUIAS

ABSTRACT The present study aimed to assess the influence of pruning on the starch yield and nutritional value of the aerial parts of industry- purpose cassava clones adapted to the Cerrado region of Central Brazil. Four elite clones were submitted to either total shoot pruning or no pruning at 12 months after planting, in a randomized complete block design with three replications. Plants were evaluated eighteen months after planting. Clone 330/09 presented the highest root yield with and without pruning, and also higher starch yield, green and dry mass yields, and crude protein yield of aerial parts without pruning. In plants that were pruned, clones 117/09 and 359/09 stood out, with higher yields of the crude protein content of the aerial part and a higher in vitro digestibility of the dry matter. These clones are therefore an option when using the aerial parts of cassava in animal feed. Total pruning at 12 months of age significantly increased the crude protein content and in vitro digestibility of the dry matter of the aerial parts, improving its nutritional value. Pruning did, however, reduce the starch yield of the roots and the total yields of the roots and aerial parts.


2016 ◽  
Vol 4 (2) ◽  
pp. 178 ◽  
Author(s):  
Muhammad Askari Zakariah

The objective of the study was to identify the effect of Trichoderma viride andSaccharomyces cerevisiae inoculant on chemical compositions, digestibility, and theobromineconcentration of fermented cocoa pod. This experiment consisted of four treatments,namely cocoa pods without fermentation as control (R0); fermentation of cocoa pods withinoculant T. viride (R1); fermentation of cocoa pods with inoculant S. cerevisiae (R2); andfermentation of cocoa pods with inoculant T. viride and S. cerevisiae mixed culture (R3).Each treatment had 3 replicates, and then was fermented for 10 days. Variables observedwere the chemical compositions i.e dry matter (DM), organic matter (OM), crude protein(CP), ether extract (EE), crude fiber (CF), nitrogen free extract (NFE), fiber fraction (Neutraldetergent fiber and acid detergent fiber), in vitro digestibility, and theobromine concentration.Data were analysed by one-way analysis of variance and followed by Duncan’s new multiplerange test (DMRT), if there were any significant difference. Results showed the inoculumaffected (P<0.05) the chemical composition, fiber fraction and in vitro digestibility. However,theobromine was not detected on cocoa pod without fermentation and fermentation.Compared to group R0, inoculation with T. viride and S. cerevisiae mixed culture (P<0.05)resulted in higher DM concentration (92.78% vs 89.72% respectively), higher CP (7.43% vs5.63% respectively), higher NDF (79.41% vs 61.18% respectively), higher ADF (73.04%vs 47.94% respectively), but was not significantly different on DM and OM digestibility(21.22% vs 22.24%, and 22.67% vs 24.31% respectively) than cocoa pod without fermentation.It is concluded that inoculant T. viride and S. cerevisiae mixed culture increased CPconcentration, but had no effect on in vitro digestibility.


1965 ◽  
Vol 45 (4) ◽  
pp. 321-331 ◽  
Author(s):  
D. N. Mowat ◽  
R. S. Fulkerson ◽  
W. E. Tossell ◽  
J. E. Winch

The in vitro dry matter digestibility (I.V.D.) of the immature stems of timothy, orchardgrass, and bromegrass was higher than that of the leaves. However the rate of decline of digestibility with advancing maturity was greater with stems. At head emergence the I.V.D. of the leaves of orchardgrass was similar to that of the stems. Wide differences existed, though, in the I.V.D. of leaf and stem fractions of orchardgrass at more advanced stages of growth. Digestibilities of the plant parts of both timothy and bromegrass were not greatly different at any growth stage.The digestibility of leaves of alfalfa decreased only slightly as the season progressed. However, the I.V.D. of the stems declined rapidly early in the season. Unlike the grasses, the stems of alfalfa never attained as high a digestibility as the leaves at the early growth stages.The crude protein content of both leaf and stem portions of the various grass species was similar.As the season progressed, orchardgrass had the highest leaf to stem ratio and bromegrass the lowest. Even within a species, leaf content was a rather poor indicator of digestibility.


1967 ◽  
Vol 45 (3) ◽  
pp. 433-441 ◽  
Author(s):  
M. R. Karr ◽  
C. O. Little ◽  
G. E. Mitchell Jr. ◽  
H. A. Glimp ◽  
P. G. Woolfolk

Rumen cannulas were installed in four sets of twin lambs. Increasing levels (with time) of a mixture of antibiotics and Sulfathalidine were administered via the rumen cannula twice daily to prevent the development of a bacterial population in the rumen. This procedure was successful for 12 weeks. Small concentrations of volatile fatty acids were observed after this time. Neither papillae nor the muscular part of the rumen developed normally in the treated lambs where rumen volatile fatty acids were absent. Structural development of the reticulum and omasum was also greatly reduced by the antibiotic–Sulfathalidine treatments. In vitro butyrate uptake by tissues taken from the rumen, reticulum, and omasum was similar and was low for both the control and treated lambs. Poor muscular development of the rumen wall was observed in the treated lambs; and large quantities of ingesta were present, suggesting a reduced rate of passage. This was associated with diminished feed intake and inability of the lambs to maintain body weight after weaning. The apparent digestion of dietary dry matter, crude protein, starch, and cellulose was reduced by treatment.


1971 ◽  
Vol 77 (1) ◽  
pp. 47-52 ◽  
Author(s):  
R. J. Haggar ◽  
M. B. Ahmed

SummaryThe crude protein content and in vitro dry-matter digestibility (I.V.D.) of leaves and stems of Andropogon gayanus, grouped into four different age categories, were measured at weekly intervals during the secondhalf of the 1968 wet season. The crude protein content of all categories of leaf and stem rose to a maximumat ear emergence; significant reductions occurred thereafter, especiallyin the younger categories of leaf and stem. At any point in time the younger leaves and stems contained significantly more crude protein than the older leaves and stems.Although the mean crude protein content of each stem category was significantly lower than the corresponding leaf category, the young, elongating stems had a significantly higher crude protein content than the older, mature leaves at the time of ear emergence.The mean I.V.D. of all leaf and stem categories was highest at the start of the recording period. At ear emergence the I.V.D. of the young elongating stems was at least as high as the mature leaves. After ear emergence the I.V.D. of the stems fell more rapidly than the leaves.The results support the principle of cutting at ear emergence to achieve maximum yields of digestible nutrients.


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