scholarly journals Chemical Composition and Digestibility of Major Feed Resources in Tanqua-Abergelle District of Central Tigray, Northern Ethiopia

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Tikabo Gebremariam ◽  
Shumuye Belay

Background. A detailed study on the feed quantity and quality is required to document the available feeds and their nutritional values. Aim. The study was aimed to investigate and document the chemical composition and in vitro dry matter digestibility of major feed resources available in Tanqua-Abergelle district of central Tigray, northern Ethiopia. Methods. Ten different feed resources were evaluated for their nutritive values. Representative feed samples were collected and prepared following appropriate procedures. The samples were subjected to analysis of chemical composition and in vitro dry matter digestibility (IVDMD) using proper scientific procedures. Results. Wide variations were observed in nutritive values of the investigated feeds. The highest crude protein (CP) was measured in Atella (15.90%) followed by green grass (13.20%), mill waste (10.90%), groundnut straw (9.18%), and cowpea straw (8.11%) in descending order. Mill waste (11.84 MJ/kg DM) and Atella (11.81 MJ/kg DM) had the highest metabolizable energy (ME) followed by green grass (9.83 MJ/kg DM), groundnut straw (9.28 MJ/kg DM), Teff straw (8.56 MJ/kg DM), and cowpea straw (8.39 MJ/kg DM) in that order. The highest NDF was recorded in groundnut null (79.80%) and the lowest NDF in mill waste (35.00%) and Atella (40.60%). The highest IVDMD was seen in mill waste (81.43%) and Atella (81.21%) and the lowest in groundnut hull (39.95%). Conclusion. The nonconventional feeds have moderate protein and reduced fiber contents, and thus, they can be utilized as supplement for poor-quality feeds. These feeds need further investigation using animals to substantiate the current study.

1972 ◽  
Vol 25 (6) ◽  
pp. 1377 ◽  
Author(s):  
RFH Dekker ◽  
GN Richards

The dry matter digestibility (DMD) of poor quality roughages such as spear grass (Heteropogon contortus) by sheep and cattle has been shown to increase on addition of sulphur to the diet. The sulphur is added most frequently as inorganic sulphate, either alone (Playne 1969) or supplemented with urea (Bray and Hemsley 1969; Kennedy and Siebert 1972; Siebert and Kennedy 1972) or gluten (Playne 1969). These supplements have also increased feed intake in sheep (Playne 1969; Kennedy and Siebert 1972; Siebert and Kennedy 1972) and cattle (Siebert and Kennedy 1972), and have improved the nitrogen and sulphur balance (Moir, Somers, and Bray 1967; Bray and Hemsley 1969; Playne 1969; Kennedy and Siebert 1972) within the animal. Sulphates have been shown to increase the in vitro rumen digestion of starch (Kennedy, Mitchell, and Little 1971), crude fibre (Bray and Hemsley 1969), and acid-detergent fibre and cellulose (Barton, Bull, and Hemken 1971).


1982 ◽  
Vol 22 (116) ◽  
pp. 155 ◽  
Author(s):  
SC Valentine ◽  
RB Wickes

Four groups of seven Friesian cows were offered 70% of their calculated metabolizable energy requirements as pasture hay and either 2.4, 4.8 or 7.2 kg/d of dry matter (DM) as wet brewers' grains or 3.9 kg DM/d as rolled barley. A further group of cows received no supplement. The quantities of brewers' grains offered were calculated from in vitro digestible DM content to provide lo%, 20% and 30%, respectively, of metabolizable energy requirements and the rolled barley 30% of metabolizable energy requirements. The cows consumed a mean of 2.2,4.3 and 6.1 kg DM/d, respectively, as brewers' grains and 3.9 kg DM/d as rolled barley. The daily yields of milk (litres), protein (kg) and solids not fat (kg), respectively, were greater (P < 0.05) for the cows offered brewers' grains at 4.8 kg DM/d (1 5.6,0.49, 1.36) and 7.2 kg DM/d (16.4, 0.54, 1.45) than for the cows offered rolled barley (13.3, 0.45, 1.21). Daily yields of milk fat from the cows offered either 4.8 or 7.2 kg DM/d of brewers' grains or rolled barley did not differ significantly. There were no significant differences between treatments in liveweight change. It was concluded that wet brewers' grains and rolled barley offered as supplements to dairy cows fed hay have similar nutritive values for milk production. It was calculated that for milk fat production the break even landed price ratio of brewers' grains to barley is 1:1.26.


Author(s):  
A. S. Chaudhry ◽  
E. L. Miller

That alkali treatments can improve the nutritional quality of poor quality roughages has long been established (Sundstol and Owen, 1984). However, their effectiveness is limited by their potential hazards to the animals and mankind. Alkaline hydrogen peroxide (AHP) has recently emerged as a possible substitute (Gould, 1985) but its farm scale application is limited by the need for high amounts of chemicals and water. Lack of any information regarding its effectiveness over NaOH alone is another factor which requires further investigation. The present study was, therefore, planned to assess the effectiveness of pH-regulated (11.5±0.2) H2O2 (AHP) in improving the in vitro dry matter digestibility (IVDMD) of wheat straw (WS, Avalon) under different laboratory conditions. The possibility of using CaO on its own or to regulate pH for AHP was also tested.


2016 ◽  
Vol 94 (suppl_5) ◽  
pp. 307-307
Author(s):  
J. A. Santos-Haliscak ◽  
J. Kawas ◽  
H. Fimbres-Durazo ◽  
G. Moreno-Degollado ◽  
R. E. Vázquez-Alvarado ◽  
...  

Rangifer ◽  
1986 ◽  
Vol 6 (2) ◽  
pp. 8 ◽  
Author(s):  
Torstein H. Garmo

<p>The chemical composition and in vitro dry matter digestibility of 45 samples of different species of lichen are reported. Mean content (g/100 g dry matter) of the main nutrients was: crude protein 4.2, crude fat 3.2, crude fibre 16.6, ash 1.9, Ca 0.15, P 0.09, Mg 0.05, K 0.13, Na 0.035, S 0.07. The content of microminerals (mg/kg dry matter) was: Cu 2.5, Mo 0.11, Zn 27.2, Se 0.12, Fe 898, Mn 154. The mean in vitro dry matter digestibility was 35%. However, the in vitro method do underestimate the dry matter digestibility of lichens. Stereocaulon spp. showed higher levels of crude protein, P, S, Cu and Mo than Cetraria spp. and Cladonia spp. Cetraria nivalis showed higher digestibility and contained more NFE, ash, Ca, Mg, but less crude fibre than Cladonia stellaris. Lichens contained less amounts of most nutrients compared with grasses (Fig. 1), exept for crude fat, NFE, Se and Fe.</p><p>Kjemisk innhald og in vitro ford&oslash;yelsesgrad av lav.</p><p>Abstract in Norwegian / Samandrag: Kjemisk innhald og in vitro ford&oslash;yelsesgrad av t&oslash;rrstoffet er bestemt i 45 pr&oslash;ver av beitelav fr&aring; to stader i S&oslash;r-Noreg. Middel innhald (g/100g t&oslash;rrstoff) av f&oslash;lgjande n&aelig;ringsstoff var: protein 4.2, feitt 3.2, trevlar 16.6, oske 1.9, kalsium 0.15, fosfor 0.09, magnesium 0.05, kalium 0.13, natrium 0.035, svovel 0.07. Innhaldet (mg/kg t&oslash;rrstoff) av mikron&aelig;ringsstoffa var: kopar 2.5, molybden 0.11, sink 27.2, selen 0.12, jern 898 og mangan 154. Den midlare ford&oslash;yelsesgraden av t&oslash;rrstoffet i lav-pr&oslash;vene var 35%, men in vitro ford&oslash;yelsesanalyser undervurderer ford&oslash;yelsesgraden av lav. Det var ein stor variasjon mellom dei ulike lavartane for dei fleste n&aelig;ringsstoffa og ford&oslash;yelsesgraden. Stereocaulon spp. inneheldt meir protein, fosfor, svovel, kopar og molybden enn Cetraria spp. og Cladonia spp. Gulskinn hadde h&oslash;gare ford&oslash;yelsesgrad, og innehaldet av NFE, oske, kalsium og magnesium var h&oslash;gre enn i kvitkrull, medan trevleinnhaldet var st&oslash;rst i kvitkrull. Lav inneheldt mindre av dei fleste n&aelig;ringsstoffa samanlikna med gras, unnateke feitt, NFE, selen og jern.</p><p>J&auml;k&auml;lien kemiallinen sis&auml;lt&ouml; ja in vitro sulatuksen aste.</p><p>Abstract in Finnish / Yhteenveto: Kuiva-aineen kemiallinen sisalto ja in vitro sulatusaste on m&aring;&aring;r&aring;tty 45:ssa kokeessa t&aring;rkeist&aring; laidunj&aring;k&aring;list&aring; kahdella paikkakunnalla Etel&aring; &mdash; Norjassa. Keskim&aring;&aring;r&aring;inen sisalto (g/100 g kuiva-ainetta) seuraavissa ravintoaineissa oli: valkuaisainetta 4.2, rasvaa 3.2, kuituja 16.6, tuhkaa 1.9, kalsiumia 0.15, fosforia 0.09, magnesiumia 0.05, kaliumia 0.13, natriumia 0.035, rikkia 0.07. Hivenainepitoisuus (mg/kg kuiva-ainesta) oli: kuparia 2.5, molybdeenia 0.11, sinkkia 27.2, seleeni&aring; 0.12, rautaa 898 ja mangaania 154. Kuiva-aineiden keskim&aring;&aring;r&aring;inen sulatusaste j&aring;k&aring;l&aring;kokeissa oli 35%. Eri j&aring;k&aring;l&aring;ajien v&aring;lill&aring; oli suuri vaihtelu eisimmissa ravintoaineissa ja sulatusasteessa. Stereocaulon spp. sis&aring;lsi enemm&aring;n valkuaisainetta, fosforia, rikki&aring; kuparia ja typettomien uuteaineiden, molybdeeni&aring; kuin Cetraria spp. ja Cladonia spp. Lapalumij&aring;k&aring;l&aring;ll&aring; oli korkeampi sulatusaste, ja tuhkan, kalsiumin ja magnesiumin sis&aring;lto oli korkeampi kuin Cladonia alpestris-j&auml;k&auml;l&auml;ss&auml;, mutta kuitusis&aring;lto oli korkein Cladonia alpestris-j&auml;k&auml;l&auml;ss&auml;. J&aring;k&aring;l&aring; sis&aring;lsi v&aring;hemm&aring;n useimmista ravintoaineista ruohoon verrattuna lukuunottamatta rasvaa, typettomi&aring; uuteaineita, seleeni&aring; ja rautaa.</p>


2020 ◽  
Vol 45 (1) ◽  
pp. 309-316
Author(s):  
O. O. Olufayo ◽  
O. O. Falola

The effect of processing on proximate, mineral, anti-nutritional compositions, gasproduction characteristics, methane production, predicted metabolizable energy, organic matter digestibility and short chain fatty acids production of Delonix regia seeds incubated with Pennisetum purpureum were determined. Five treatments (T1: mixture of soaked Delonix regia seed and Pennisetum purpureum; T2: mixture of raw Delonix regia seed and Pennisetum purpureum; T3: mixture of roasted Delonix regia seed and Pennisetum purpureum; T4: mixture of boiled Delonix regia seed and Pennisetum purpureum and T5:100% Pennisetum purpureum which serves as control) were designed. In vitro gas production techniques for 24 hours were used to determine the nutritive value of processed 50% Delonix regia seed and 50% Pennisetum purpureum. The crude protein ranged from 13.38 to 15.71g/100g DM among the treatments while crude fibre was between 20.10 and 21.40g/100g DM, ether extract ranged from 1.90 to 3.12g/100g DM and ash 7.77 to 12.34g/100g DM. Calcium ranged from (2.34 - 3.61%), magnesium ranged (2.90 – 3.48%), sodium (2.05 – 2.91%) and phosphorus (0.88 – 1.12%). It was observed generally that T2 recorded the highest among the treatments while the values obtained for the heat treated seeds were lower than the raw. Oxalates ranged between (0.23% - 0.32%), phytates (0.29 – 0.43%), tannin (0.03 – 0.08%) and saponnin (0.36 – 0.49%). Methane (ml/200mg DM) production indicated T3 (50% roasted Delonix regia seed and 50% Pennisetum purpureum) was highest. The potential gas production 'a+b' ranged from 12.33 to 28.33mL/200mg DM). The highest potential gas production 'a+b' value of 28.33mL/200mg DM was obtained in T1 compared to other dietary treatment. Dry matter digestibility (DMD) ranged between 70.23 – 91.02% while the rate of fermentation was between 0.51 and 1.18ml/hr. The rate of fermentation was directly proportional to dry matter digestibility (DMD); the soaked recorded the highest value. Processing enhanced the nutritional contents of Delonix regia seeds. The result obtained showed that there were significant differences (p<0.05) among the treatments. In conclusion, soaking the seeds of Delonix regia had beter nutritional contents and has the potential for dry season feeding.  


1986 ◽  
Vol 57 (1) ◽  
pp. 58-64
Author(s):  
Koji TOYOKAWA ◽  
Kei HANZAWA ◽  
Tatsushi INOUE ◽  
Akira SAKAMOTO ◽  
Kaizo TSUBOMATSU

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