Ensilage from alkali-treated roughages

1979 ◽  
Vol 19 (98) ◽  
pp. 354 ◽  
Author(s):  
WR McManus ◽  
LL Grout ◽  
VNE Robinson ◽  
P Southwell-Keely ◽  
PN Woodhart
Keyword(s):  
Acetic Acid ◽  
Dry Matter ◽  
Marked Effect ◽  
Alkali Treatment ◽  
Good Condition ◽  
Chemical Properties ◽  
Reaction Phase ◽  
Ph Values ◽  
Dry Matter Digestibility ◽  
Naoh Treatment

Three experiments examined the chemical properties and digestibility of silage made from ground wheaten straws and a ground mature legume hay treated with alkali, the effects of type and concentration of alkali, heating during the initial alkali-reaction phase, and the effect of a grain supplement on initiation and maintenance of fermentation. All silages opened in good condition. Initial (1 1/2 hour) pH values for alkali-treated silages were high : 5% NaOH, 11.5; 1.25% NaOH, 9.1 ; 1.25% NH4OH, 9.8 c.f. 6.9 for non-alkali control silages. Final (day 41) pH values for the 4% and 5% NaOH treatment ranged from 6.24-4.86. Inclusion of grain at the start of the process generally favoured early decline in pH values at 70 hours, but had no marked effect on the resultant product at 41 days. Inclusion of grain did not appear to be warranted since, in experiment 1, substantial quantities of acetic acid (0.73-2.33 g 100 g-1 silage DM) and of lactic acid (1.08-1.50 g 100 g-1 silage DM) as well as some propionic acid were found in alkali-treated roughage ensiled alone. These values were greater than for control (no alkali) silages not receiving grain, and indicate that alkali solubilization of hemicellulose occurred, with subsequent fermentation. Alkali treatment increased the digestibility of wheat straws by 60 to 80%; but it did not alter that of alkali-treated mature siratro hay. NH4OH was less effective than NaOH in increasing silage dry matter digestibility. It was concluded that potentially useful silage can be formed from alkali-treated roughages despite the initial highly alkaline environment. The results indicate that neither heating during the main alkali reaction phase nor the inclusion of grain are necessary, either for the initiation of useful fermentation or for the formation of a useful product.

scholarly journals Woolenization of Jute Fibre

2017 ◽  
Vol 13 (30) ◽  
pp. 314
Author(s):  
Rony Mia ◽  
Md. Ariful Islam ◽  
Bulbul Ahmed ◽  
Jalal Ibn Amin Mojumdar
Keyword(s):  
Market Share ◽  
Alkali Treatment ◽  
Chemical Properties ◽  
World Market ◽  
Modern Technology ◽  
Physical And Chemical Properties ◽  
Jute Fibre ◽  
Naoh Treatment ◽  
Physical And Chemical ◽  
And Chemical Properties

Once upon a time, Jute was called the golden fibre of Bangladesh. Due to some problems and growth of modern technology, the market share of jute has decreased. In this paper, the effect of Woolenization of jute fibre was described. It also shows how the physical and chemical properties of jute have been changed by alkali-treatment as well as its structure. It was demonstrated that this kind of treatment leads to several changes in its structure which has turned to a near wool structure. These works are done by different concentrations of different alkalis. Finally, 15% NaOH treatment of jute show maximum woolenized properties where we obtain softened and swollen jute. Conclusively, we have made some other products from woolenized jute fibres such that if introduced into our world market, it can increase the market share of jute fibre.

scholarly journals Effects of fibre on digestibility and passage time in Callithricidae

1984 ◽  
Vol 18 (3) ◽  
pp. 275-279 ◽  
Author(s):  
F. Krombach ◽  
C. Flurer ◽  
H. Zucker
Keyword(s):  
Wheat Bran ◽  
Dry Matter ◽  
Marked Effect ◽  
Time Consistency ◽  
Passage Time ◽  
Crude Fibre ◽  
Saguinus Fuscicollis ◽  
Dry Matter Digestibility ◽  
Pelleted Diet ◽  
Considerable Degradation

The effects of fibre in a pelleted diet on food intake, digestibility of crude fibre, dry matter and energy, on passage time and consistency of faeces were studied in 2 species of Callithricidae, Callithrix jacchus and Saguinus fuscicollis. Coarse cellulose, microcellulose, wheat bran and shrimp meal (chitin = crude fibre) were tested in diets containing 2, 4 and 6% total crude fibre, respectively. Digestibility and passage time were determined by inclusion of 0·5% Cr2O3 in the diet. Both celluloses had little influence on the digestibility of energy and dry matter. Digestibility of crude fibre was very low. Wheat bran led to evident depression of energy and dry matter digestibility. High digestibility of crude fibre occurred at the higher levels of inclusion in the diet. Shrimp meal was highly digested with little influence on digestibility of energy and dry matter, indicating considerable degradation of chitin. Wheat bran showed a marked effect, while microcellulose had no effect on passage time, consistency and volume of faeces.

scholarly journals Substratos no desenvolvimento de cultivares de gérbera envasada

2015 ◽  
Vol 21 (2) ◽  
pp. 177
Author(s):  
Fernanda Ludwig ◽  
Dirceu Maximino Fernandes ◽  
Amaralina Celoto Guerrero ◽  
Roberto Lyra Villas Bôas
Keyword(s):  
Dry Matter ◽  
Ornamental Plants ◽  
Chemical Properties ◽  
Dry Mass ◽  
Chemical Characteristics ◽  
Physical And Chemical Properties ◽  
Ph Values ◽  
Aerial Parts ◽  
Physical And Chemical ◽  
And Chemical Properties

The gerbera is a prominent culture that has gained in the Brazilian market of flowers and ornamental plants and there is a great demand for adequate substrates for its production. This study was conducted to evaluate the growth and distribution of dry mass and nitrogen in potted gerbera, depending on the substrates and cultivars. Experimental design was randomized blocks in a 5x2 factorial arrangement (5 substrates and 2 cultivars). Red and Cherry cultivars were evaluated at 1, 15, 29, 43 and 50 days of acclimation (DAA) to the leaves number, leaf area, dry mass of aerial parts (leaf and flower) and accumulation of nitrogen. From 29 DAA, the inflorescence has established as the drain and has contributed significantly to the total dry mass. The accumulation of nitrogen was similar in vegetative and reproductive periods. The traits evaluated varied depending on the substrate used, influenced by physical and chemical properties of the same. The growth, dry matter and nitrogen distribution potted gerbera cultivars Cherry and Red are influenced by physical and chemical characteristics of substrates, with better results in substrates with bulk density of less than 530 kg m-3 and pH values between 5.5 and 6.8

EFFECT OF PROCESSING METHODS ON THE IN VITRO DIGESTIBILITY OF SODIUM HYDROXIDE TREATED ROUGHAGES

1970 ◽  
Vol 50 (3) ◽  
pp. 657-662 ◽  
Author(s):  
B. G. OLOLADE ◽  
D. N. MOWAT ◽  
J. E. WINCH
Keyword(s):  
Sodium Hydroxide ◽  
Dry Matter ◽  
Water Solubility ◽  
Lignin Content ◽  
Barley Straw ◽  
In Vitro Digestibility ◽  
Acid Detergent Fiber ◽  
Dry Matter Digestibility ◽  
Naoh Treatment

The response of roughages to sodium hydroxide (NaOH) treatment varied with type of roughage. Treatment with NaOH at 23 C for 24 hr increased in vitro dry matter digestibility (IVDMD) by 8,5, 39.6 and 21.5 percentage units for alfalfa stem, barley straw and corn stover, respectively. Increased IVDMD values were brought about, in part, by increased water solubility and decreased cell wall constituents. No significant changes occurred in acid detergent fiber, cellulose or lignin content. The IVDMD values of barley straw ranged from 38% at 0% NaOH to 81% with 12% NaOH at 130 C. At all temperatures and durations, IVDMD increased with increase in concentration of NaOH up to the 8% level. Above 8% NaOH, no further increase in IVDMD occurred. Temperature affected the rate as well as the extent of the response to NaOH. Treatments at 100 C for 90 min resulted in IVDMD values approximately 10 percentage units higher than at 23 C for 24 hr.

The roughage requirement of the early-weaned calf

1973 ◽  
Vol 16 (2) ◽  
pp. 195-203 ◽  
Author(s):  
Hi Shin Kang ◽  
Jane Leibholz
Keyword(s):  
Fatty Acids ◽  
Acetic Acid ◽  
Wheat Straw ◽  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Linear Increase ◽  
Total Volatile ◽  
Dry Matter Digestibility ◽  
Acid Detergent Fibre ◽  
Ad Libitum

SUMMARYAn experiment was conducted with 50 male Friesian calves between 5 and 11 weeks of age. Milled wheat straw (0·95 cm screen) was included in a pelleted all-concentrate diet at concentrations of 0, 15, 30 or 45 %. The nitrogen content of the diets was maintained by the addition of urea. The diets were given alone or with a chaffed lucerne hay or wheat straw supplement ad libitum. All diets contained 2 % sodium bicarbonate.The feed intake and weight gains of the calves were increased significantly by the inclusion of 15 % milled wheat straw, but were reduced by 30 or 45 % straw. The supplements of chaffed wheat straw or lucerne hay ad libitum did not influence the performance of the calves. The inclusion of wheat straw in the diets reduced their dry-matter digestibility but the digestibility of acid detergent fibre was maximal with 27 % straw. The digestibility of nitrogen was significantly increased by 15% straw but reduced by further increases in straw.The inclusion of wheat straw in the diets did not influence the pH of the rumen contents or the concentration of total volatile fatty acids in the rumen. Increasing the level of straw in the diet caused a significant linear increase in the proportion of acetic acid and decreases in butyric, propionic and valeric acids.

PENGARUH PERLAKUAN ALKALI PADA LIMBAH KULIT KOPI DAN PENINGKATAN KECERNAANNYA DENGAN TEKNIK IN VITRO

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
A. Fariani., dkk
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
Animal Feed ◽  
Alkali Treatment ◽  
In Vitro Digestibility ◽  
Coffee Pulp ◽  
Dry Matter Digestibility ◽  
Tannin Concentration ◽  
Organic Matter Digestibility

This research was done to improve coffee pulp digestibility with alkali treatment and adding organic acid by in vitro. This research was done in two stage, fi rst stage was soaking in alkali fl uid and second stage was in vitro digestibility analysis, in Animal Feed and Nutrition Laboratory, Faculty of Agriculture, Sriwijaya University. Completely Randomized Design (CRD) used in 4 reatments and feed treatment was replicated 3 times. The treatments were: P0 (control), P1 (2 day soaking), P2 (3 day soaking) and P3 (4 day soaking). Observe parameters were tannin concentration, dry matter digestibility, organic matter digestibility, concentration of N-NH3 and (pH). The result showed that the treatment had nosignifi cant diference (P0.01) on tannin concentration. However, it was signifi cantly difference on dry matter digestibility, organic matter digestibility, concentration of N-NH3, and (pH).Key Words: Coffee pulp, alkali treatment, digestibility, in vitro techniques

scholarly journals Fermentative characteristics of sugar cane silages with additives

2014 ◽  
Vol 15 (4) ◽  
pp. 801-814 ◽  
Author(s):  
Wéder Jânsen Barbosa Rocha ◽  
Vicente Ribeiro Rocha Júnior ◽  
Geanderson Walder Vieira da Silva ◽  
Sidnei Tavares dos Reis ◽  
José Reinaldo Mendes Ruas ◽  
...  
Keyword(s):  
Acetic Acid ◽  
Sugar Cane ◽  
Dry Matter ◽  
Fermentation Process ◽  
Ammonia Nitrogen ◽  
Ph Values ◽  
Randomized Design ◽  
Low Concentrations ◽  
Completely Randomized Design ◽  
The Ideal

This work aimed to evaluate the fermentative characteristics silages of two varieties of sugar cane with different additives. The experiment was conducted in the Department of Agricultural Sciences of UNIMONTES, Janaúba Campus - MG. A completely randomized design with a factorial scheme of 2 x 5 + 2 was used, with two varieties of sugar cane (RB 86 7515 and IAC 86 2480) and five additives (urea, NaOH, CaO, corn and Lactobacillus buchneri), with three repetitions and one treatment without additive by variety, where the silos were opened 60 days after the ensiling. The additives NaOH and CaO promoted reductions in the losses by gases and effluents of the silages of sugar cane. The IAC 86 2480 variety showed better recovery rate of dry matter. The additives NaOH and L. buchneri reduced the water activity in the IAC 86 2480 variety. Corn and L. buchneri promoted lower pH values. The addition of urea significantly increased the amounts of ammonia nitrogen. The silages supplemented with NaOH and CaO showed high levels of lactic acid and low concentrations of ethanol. The concentration of acetic acid as a percentage of dry matter was high in all treatments. Propionic acid and butyric acid were within the ideal range for the fermentation process. The use of NaOH and CaO additives resulted in a silage with good fermentative characteristics and the best variety for the ensiling process was IAC 86 2480.

scholarly journals The accuracy of several in vitro methods in estimating in vivo digestibility of the tropical dairy ration

2022 ◽  
Vol 951 (1) ◽  
pp. 012012
Author(s):  
Despal ◽  
D T P Manik ◽  
D Evvyernie ◽  
R Zahera
Keyword(s):  
Dry Matter ◽  
Ph Value ◽  
In Vitro Digestibility ◽  
In Vitro Methods ◽  
Ph Values ◽  
Dry Matter Digestibility ◽  
Local Setting ◽  
Randomized Design

Abstract In vitro digestibility methods have been developed to overcome problems in the in vivo digestibility measurement, but its accuracy should be tested in a local setting. In vitro methods developed by Tilley and Terry (T2), Theodorou (T3) and Sutardi (T4) have been compared to in vivo method (T1) in a block randomized design study. Four heifers FH (337.50 ± 45.87 kg BW) were used in T1, and two fistulated FH bulls (510 ± 20 kg BW) were used as inoculant sources in the in vitro methods. Dairy cattle ration consisted of 54.0% Napier grass and 46.0% concentrate with 58.8% DM, 12.1% ash, 10.0% CP, 3.3% EE, 26.5% CF, and 61.1% TDN. The observed parameters were ration fermentability (pH, NH3, and VFA concentration) and digestibility (DMD and OMD). The data were analyzed using analysis of variance (ANOVA) followed by the Tukey test. The correlation was made before regression analysis to estimate the in vivo parameters from the in vitro. The results showed that pH values are in the normal range (6.7 – 6.8), and insignificantly different between treatments (P>0.05). The concentration of NH3 and VFA were significantly different between the treatments (P<0.05), but T2 produced similar NH3 and VFA concentrations to T1. Similar results were also found in the DMD and OMD. Correlation analysis showed that pH value of T3 correlated significantly with T1, while DMD value of T4 correlated to T1. The T1 DMD (Y) could be estimated from T4 DMD (X) using formula Y (%) = y = -0.091x2 + 9.1632x - 168.4. It is concluded that tropical dairy feedstuffs in vitro digestibility using Tilley and Terry’s method produced similar result to in vivo digestibility method, but in vivo dry matter digestibility can be estimated accurately by in vitro dry matter digestibility using Sutardi method.

Ruminal flora studies. VIII. The influence of rate and method of feeding a ration upon its digestibility, upon ruminal function, and upon the ruminal population

1957 ◽  
Vol 8 (3) ◽  
pp. 254 ◽  
Author(s):  
RJ Moir ◽  
M Somers
Keyword(s):  
Volatile Fatty Acid ◽  
Dry Matter ◽  
Latin Square ◽  
Nitrogen Retention ◽  
Ammonia Nitrogen ◽  
Daily Ration ◽  
Distinctive Pattern ◽  
Nitrogen Levels ◽  
Ph Values ◽  
Dry Matter Digestibility

A single ration made up of commercial sheep cubes (20 per cent. protein) together with oaten and lucerne chaff was fed to five sheep in five different ways. A Latin square design was used. Measurements were made on the ruminal population, the metabolism within the rumen, and the overall nitrogen balance and dry matter digestibility. Each of the different treatments resulted in a distinctive pattern in the ruminal population, pH, ammonia nitrogen, and volatile fatty acid levels. There were significant differences in dry matter digestibility and nitrogen retention. The daily ration given as a single feed gave the lowest dry matter digestibility and nitrogen retention. It also caused the greatest fall in pH values and bacterial counts, and the lowest protozoal counts. The highest ruminal ammonia nitrogen levels were also associated with this treatment. The best performance was obtained by feeding the concentrate in the morning and roughage in the afternoon, or feeding the whole ration in four equal portions at 2-hr intervals. The other two treatments – half ration morning and afternoon, or chaff in the morning and concentrates in the afternoon – gave intermediate results. Some implications of the various data are discussed, and the strong influence of feeding pattern is stressed.

The role of silicon in forages: A quantitative X-Ray study

1987 ◽  
Vol 45 ◽  
pp. 416-417
Author(s):  
Janet H. Woodward ◽  
D. E. Akin
Keyword(s):  
Sodium Acetate ◽  
Dry Matter ◽  
Acetate Buffer ◽  
Plant Tissues ◽  
Sodium Acetate Buffer ◽  
X Ray ◽  
Dry Matter Digestibility ◽  
Percent Composition

Silicon (Si) is distributed throughout plant tissues, but its role in forages has not been clarified. Although Si has been suggested as an antiquality factor which limits the digestibility of structural carbohydrates, other research indicates that its presence in plants does not affect digestibility. We employed x-ray microanalysis to evaluate Si as an antiquality factor at specific sites of two cultivars of bermuda grass (Cynodon dactvlon (L.) Pers.). “Coastal” and “Tifton-78” were chosen for this study because previous work in our lab has shown that, although these two grasses are similar ultrastructurally, they differ in in vitro dry matter digestibility and in percent composition of Si.Two millimeter leaf sections of Tifton-7 8 (Tift-7 8) and Coastal (CBG) were incubated for 72 hr in 2.5% (w/v) cellulase in 0.05 M sodium acetate buffer, pH 5.0. For controls, sections were incubated in the sodium acetate buffer or were not treated.

Sign in / Sign up

Export Citation Format

Share Document