Studies of natural herbage of the subtropics II. The effect of added concentrates on the digestibility of herbage

1962 ◽  
Vol 58 (3) ◽  
pp. 393-397 ◽  
Author(s):  
J. H. Topps

1. The effect of feeding three levels of concentrates on the organic matter digestibility of two kinds of herbage was determined in four Latin square trials with four wether sheep.2. Analysis of variance of the trials showed that the organic matter digestibility of all mixed feeds was significantly higher than that of the corresponding herbage. With one exception, the organic matter digestibility of the mixed feeds within each trial was not significantly different.3. The digestibility coefficients of the concentrates, derived by difference, were invariably high and exceeded 100% for four levels of addition. This indicated a marked improvement of the digestibility of herbage when it was fed with certain levels of concentrate.4. A possible explanation of the increase of digestibility was discussed and the practical implications of the results indicated.

2017 ◽  
Vol 18 (4) ◽  
pp. 518-529 ◽  
Author(s):  
Adriano Jorge Possamai ◽  
Joanis Tilemahos Zervoudakis ◽  
Luciana Keiko Hatamoto-Zervoudakis ◽  
Lucien Bissi da Freiria ◽  
Pedro Ivo José Lopes da Rosa Silva ◽  
...  

SUMMARY We evaluated the effects of increasing levels of crude glycerin in multiple supplements for grazing beef cattle on intake, nutrient digestibility, pH, ruminal ammoniacal nitrogen, and serum glucose. Five Nellore steers (initial BW of 480 kg [SD 15]), grazing a tropical pasture, were used in a 5 × 5 Latin square design. The treatments used were control (no supplementation; only a mineral mixture ad libitum) and four levels of crude glycerin (0, 80, 160, 240 g/kg of supplements). Supplementation type had no impact (P > 0.05) on pH at 0 and 4 h after supplementation. Animals supplemented with different levels of crude glycerin showed higher N-NH3 values (P < 0.05) at 4 h after supplementation. Crude glycerin supplementation did not reduce pasture intake (P > 0.05), increasing dry matter intake (P > 0.05) due to increased organic matter digestibility (P > 0.05). Supplementation of 4 kg/animal with crude glycerin (240 g/kg supplement) did not reduce pasture intake and organic matter digestibility.


ZOOTEC ◽  
2016 ◽  
Vol 36 (2) ◽  
pp. 387
Author(s):  
Nasriya . ◽  
Ronny A.V Tuturoong ◽  
Ch. L. Kaunang ◽  
S. S. Malalantang ◽  
M. M. Tindangan

THE EFFECTS OF OFFERING KING GRASS (Pennisetum purpupoides) AND CORN  STOVER ON DRY MATTER AND  ORGANIC MATTER OF ONGOLE CROSS BREED STEER CALVES. A research has been conducted to evaluate the effects of offering king grass (Pennisetum purpupoides) and corn stover as ingredients for ration formulating on dry matter and organic matter digestibility of ongole cross breed steer calves. Five ongole cross breed steer calves with about 100 kg body weight were used in this experiment. Latin square design  with 5 tereatments was used. The treatments were rasio of king grass and corn stover; R1 = 100% king grass, R2 = 75% king grass + 25% corn stover, R3 = 50% king grass + 50% corn stover, R4 = 25% king grass + 75% corn stover, R5 100% corn stover.  The variables measured were dry matter and organic matter digestibility. Analysis of variance showed that there were no significant effect of treatments on dry metter and organic matter digestibility. Averages of dry matter digestibility during experiment ranged 56.27% - 59.48%. The highest was 59.48% for R5 (100% corn stover) and the lowest was 56.27% for R1 (100% king grass). Averages of organic matter ranged from 87.64% to 88.72%. The highest organic matter digestibility was on R4 (25% king grass + 75% corn stover) and the lowest organic matter digestibility was on R2 (75% king grass + 25% corn stover). It can be concluded that the best nutritive value was at combination of 25% king grass + 75% corn stover on dry matter and organic matter digestibility of ongole cross breed steer calves. keywords: king grass, corn stover, digestibility, dry matter, organic matter


1962 ◽  
Vol 42 (1) ◽  
pp. 82-87 ◽  
Author(s):  
J. W. G. Nicholson ◽  
D. W. Friend ◽  
H. M. Cunningham

Rumen-fistulated yearling steers were used in two 4 × 4 latin square design experiments to determine the digestibility and nitrogen retention of all-concentrate rations with various supplements. The inclusion of 5.7 per cent sodium bicarbonate in either a ground- or dry-rolled-grain ration resulted in an increase in urine excretion. Digestibility of organic matter and nitrogen or nitrogen retention were not affected. The addition of 60 milliliters of cod liver oil (1200 I.U. vitamin A, 150 I.U. vitamin D per gram) per day to the bicarbonate supplemented, ground-grain ration tended to decrease organic matter digestibility while the addition of 3.6 per cent sodium propionate tended to increase organic matter digestibility. Differences between these rations and the bicarbonate ration were not statistically significant; however, the percentage of nitrogen retained on the cod liver oil supplemented ration was significantly (P < 0.05) lower than on the propionate supplemented ration.The inclusion of 5.7 per cent ground limestone significantly (P < 0.05) reduced the digestibility of dry matter, and nitrogen, but the digestibility of organic matter was not significantly lower at this probability level.


2018 ◽  
Vol 6 (2) ◽  
Author(s):  
A A Sembiring ◽  
T H Wahyuni ◽  
N D Hanafi ◽  
A H Daulay ◽  
Hasnudi

This study aims to analyze the digestibility of dry matter and organic matter of fermented sago pulp alternative feed on local sheep male weaning. Research conducted at Karang Rejo village farm, Stabat district, Langkat. This study in Maret 2016-Juny 2017. The design used was completely randomized design (CRD), with four treatments five replications. Each repeat consists of one local sheep male weaning with the average of body weight 8-10 kg. The treatment consisted of P1(consentrat with 50% sago pulp without fermented + forage), P2 (consentrat with 60% sago pulp without fermented + forage), P3 (consentrat with 50% sago pulp fermented + forage), and P4 (consentrat with 60% sago pulp fermented + forage). The variable were studied dry matter consumption, organic matter consumption, dry matter digestibility and organic matter digestibility. Results of analysis of variance show that the utilization of fermented sago pulp waste had highly significantly different effect (P<0,01) on dry matter consumption of treatment P1, P2, P3 and P4 is 486,38; 548,68; 604,69;and 671,11 (gr/head/day), and organic matter consumption is 469,34; 525,22; 582,42 and 644,40 (gr/head/day). And average of dry matter digestibility waste not significantly different effect (P>0,05) on value dry matter digestibility of treatment P1, P2, P3 and P4 is 79,04; 79,23; 78,59 and 78,23 (%), average of organic matter digestibility is 81,66; 81,43; 80,79 and 80,27 (%). Increasing use of fermented pulp sago increases the value of dry matter consumption and organic matter consumption in local sheep feed. Conclusions of fermented sago pulp can not to increase dry matter digestibility and organic matter digestibility, but fermented and non-fermented sago pulp can be given to sheep male weaning up to 60%, because the digestibility value of the two ingredients is above 70%.


2017 ◽  
Vol 5 (2) ◽  
Author(s):  
E B N Capah ◽  
E Mirwandhono ◽  
Hasnudi ◽  
T H Wahyuni ◽  
Hasnudi ◽  
...  

The research was conducted at the Laboratory of Animal Biology, Faculty of Agriculture, University of Sumatera Utara in March 2015- June 2015. This study aims to determine the value of dry matter and organic matter processed leaf palm fronds fermentation and ammoniation in cattle Aceh. This study used the Latin Square Design (LSD) 4 x 4. The treatment is Po as the control (untreated), Pf = fermentation (biomol), P2 = ammoniation (urea 3%), P3 = fermentation + ammoniation.The observed variable composed of Consumption and Dry Matter (DMD) and Organic Matter Digestibility (OMD). The result showed that treatments gave not significantly different (P>0.05) on consumption of DM and OM, but gave significantly different effect on DMD and OMD (P<0.05). Average % DMD on treatments Po, PI, P2, P3 : 51.54; 56.65; 51.48; and 63.05 and average % OMD : 58.61; 63.22; 57.28; and 63.05, respectively. The conclusion from this study that utilization of oil palm fronds treated by fermentation or combination between fermentation and ammoniation can increase the dry matter digestibility and organic matter digestibility in Aceh cattle.


2013 ◽  
Vol 58 (No. 6) ◽  
pp. 253-261 ◽  
Author(s):  
O.E. Del Razo-Rodríguez ◽  
Ramírez-BribiescaJE ◽  
R. López-Arellano ◽  
Revilla-VázquezAL ◽  
S.S. González-Muñoz ◽  
...  

The objective was to evaluate the effect of different levels of selenium with two levels of grain corn in the diets on ruminal, postruminal, and total tract digestion of nutrients, ruminal fermentation characteristics, and selenium balance in lambs. A split-plot design was used in four periods with repeated Latin square using eight Suffolk &times; Dorset male lambs with four levels of selenium (sodium selenite, Na<sub>2</sub>SeO<sub>3</sub>), without adding selenium, 0.3, 0.6, and 0.9 mg of selenium/kg dry matter (DM) with 70 and 50% of corn grain in the diet. The four selenium levels affected organic matter as follows: starch, neutral detergent fibre, nitrogen and selenium excretion; selenium ruminal digestion; organic matter, neutral detergent fibre, nitrogen and selenium postruminal digestion; and organic matter, neutral detergent fibre, nitrogen and selenium total tract digestion (P &lt; 0.05). Starch and organic matter flow decreased with 0.6 and 0.9 mg of selenium with the 70% grain diet (P&nbsp;&lt; 0.05). Selenium flow increased linearly with selenium levels (P &lt; 0.01) with both levels of grain. Selenium supplementation increased linearly selenium concentration in ruminal fluid (P &lt; 0.01), but did not affect other ruminal characteristics. Also, selenium absorption and retention was increased by selenium concentrations (P&nbsp;&lt; 0.01). The apparent absorption of selenium increased (31%, P &lt; 0.01) with the 70% grain diet. In conclusion, the high content of nonstructural carbohydrates improved the availability of selenium and 0.9 mg of selenium/kg <br />DM improved the absorption and availability of selenium. &nbsp;


2021 ◽  
Vol 22 (3) ◽  
pp. 154-157
Author(s):  
Restuti Fitria ◽  
Siti Rahmawati Zulaikhah ◽  
Novita Hindratiningrum

This research aimed to evaluate the addition of M21 Decomposer (MD) and urea (U) on the Dry matter digestibility (DMD) and Organic matter digestibility (OMD) in vitro. There were five treatments and five replicates. The treatments in this study were the addition of MD and U at different levels. namely R0 = Corn cob without amofer/control; R1 = Amofer Corn cob plus 0.04% MD+3% U; R2 = Amofer Corn cob plus 0.06% MD+3% U; R3 = Amofer Corn cob plus 0.04% MD+5% U; and R4 = Amofer Corn cob plus 0.06% MD+5% U. The obtained data were subjected to Analysis of Variance and continued by an Orthogonal Contrast. The result showed that the treatments significantly affected (P<0.05) both DMD and OMD digestibility. The digestibility of amofer corncob was higher than the non-amofer that exhibited 17.982±2.4409% DMD and 26.024±3.009% OMD. The highest DMD and OMD digestibility was observed in R4. i.e.. 24.655±4.858% and 34.276±5.176%. respectively. In conclusion. the best  level  in the incorporating MD and U is at MD 0.06%  and U 5%  could improve DMD by 6.673% and OMD by 8.252%.


2019 ◽  
Vol 97 (7) ◽  
pp. 3056-3070 ◽  
Author(s):  
Emily A Petzel ◽  
Evan C Titgemeyer ◽  
Alexander J Smart ◽  
Kristin E Hales ◽  
Andrew P Foote ◽  
...  

AbstractTwo experiments were conducted to measure rates of ruminal disappearance, and energy and nutrient availability and N balance among cows fed corn husks, leaves, or stalks. Ruminal disappearance was estimated after incubation of polyester bags containing husks, leaves or stalks in 2 separate ruminally cannulated cows in a completely randomized design. Organic matter (OM) that initially disappeared was greatest for stalks and least for husks and leaves (P < 0.01), but amounts of NDF that initially disappeared was greatest for husks, intermediate for stalks, and least for leaves (P < 0.01). Amounts of DM and OM that slowly disappeared were greatest in husks, intermediate in leaves, and least in stalks (P < 0.01). However, amounts of NDF that slowly disappeared were greatest in leaves, intermediate in husks, and least in stalks (P < 0.01). Rate of DM and OM disappearance was greater for leaves, intermediate for husks and least for stalks, but rate of NDF disappearance was greatest for stalks, intermediate for leaves, and least for husks (P < 0.01). Energy and nutrient availability in husks, leaves, or stalks were measured by feeding ruminally cannulated cows husk-, leaf-, or stalk-based diets in a replicated Latin square. Digestible energy lost as methane was less (P = 0.02) when cows were fed leaves in comparison to husks or stalks, and metabolizable energy (Mcal/kg DM) was greater (P = 0.03) when cows were fed husks and leaves compared with stalks. Heat production (Mcal/d) was not different (P = 0.74) between husks, leaves, or stalks; however, amounts of heat produced as a proportion of digestible energy intake were less (P = 0.05) among cows fed leaves in comparison to stalks or husks. Subsequently, there was a tendency (P = 0.06) for net energy available for maintenance from leaves (1.42 Mcal/kg DM) to be greater than stalks (0.91 Mcal/kg DM), and husks (1.30 Mcal/kg DM) were intermediate. Nitrogen balance was greater when cows were fed leaves, intermediate for husks, and least for stalks (P = 0.01). Total tract digestion of NDF was greater (P < 0.01) for husks and leaves compared with stalks. Husks had greater (P = 0.04) OM digestibility in comparison to stalks, and leaves were intermediate. Apparently, greater production of methane from husks in comparison to leaves limited amounts of energy available for maintenance from husks even though total-tract nutrient digestion was greatest when cows were fed husks or leaves.


1972 ◽  
Vol 79 (1) ◽  
pp. 99-103 ◽  
Author(s):  
A. M. Raven

SUMMARYA 6 x 6 Latin Square balance experiment was carried out using six Friesian steers, each of which initially weighed about 304 kg. The six treatments studied were an all-hay diet and five other diets containing 20,40,60,80 and 100 % of rolled barley fortified with mineral and vitamin supplements, accompanied by correspondingly reduced proportions of hay. Each diet was fed at an estimated maintenance level of feeding.The progressive increase in the proportion of concentrate gave a significantly linear increase (P < 0·001) in both digestible and calculated metabolizable energy. The actual increase in digestible energy was from 2·62Mcal/kg dry matter (59·3% of the gross energy) on the all-hay treatment to 3·42 Mcal/kg dry matter (79·5% of the gross energy) on the all-concentrate treatment. Use of the determined digestible energy values for the all-hay and fortified barley diets to calculate the digestible energy of the four mixed diets gave results in reasonably good agreement with the determined values, the maximum difference being 0·12 Mcal/kg dry matter, which represented 3·83 % of the determined value. The losses of energy in the urine expressed as percentages of the gross energy of the diets showed a small but significantly linear decrease (P < 0·01) with increase in proportion of barley in the diet. The molar proportions of steamvolatile acids in samples of rumen fluid taken from two animals on each treatment indicated that increase in the proportion of concentrate was associated with tendencies for increase in acetic acid, decrease in propionic acid and little change in butyric acid. The mean digestibility of the organic matter was 62·6 % on the all-hay treatment and 81·8 % on the all concentrate treatment. The progressive increase in the proportion of concentrate gave a significantly linear increase (P < 0·001) in digestibility of the organic matter. Although intakes of nitrogen decreased with increase in the proportion of concentrate due to a decrease in the amount of dry matter fed, the weights of nitrogen retained were well maintained and when expressed as percentages of intake showed a significantly linear increase (P < 0·01).


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