scholarly journals In vitro assessment of nutritive value of date palm by-products as feed for ruminants

2016 ◽  
Vol 28 (10) ◽  
pp. 695 ◽  
Author(s):  
BOUFENNARA Souhil ◽  
Bouazza Lyas ◽  
De Antonio ◽  
Fondevila Manuel ◽  
Amanzougarene Zahia ◽  
...  
2005 ◽  
Vol 2005 ◽  
pp. 223-223
Author(s):  
R. Feizi ◽  
A. Ghodratnama ◽  
M. Zahedifar ◽  
M. Danesh Mesgaran ◽  
M. Raisianzadeh

Pomegranate by-products (peel and seed) contain about 40-45 percent of the fruit’s weight. The rind of the fruit (peel),when dried, is brown outside, yellow inside, hard, dry, brittle, in irregular fragments, inodorous, and with a very astringent, somewhat bitter taste. Analysis of pomegranate peel (PP) is shown that it contains 18.8 percent of tannin, 17.1 of mucilage, 10.8 of extractive matter, 30 of lignin, a trace of resin, and 29.9 of moisture. However, little information is available on PP nutritive value for ruminants. It is poor in protein and rich in tannins. Tannins components of the peel prevents its optimal use. The objective of this experiment was to evaluate the effect of different levels of urea (U) on in vitro gas production with and without added polyvinylpolypyrrolidone (PVP) to ensiled pomegranate peel (EPP).


Author(s):  
PS Banakar ◽  
K Ally ◽  
E Lokesh ◽  
Arathy Saseendran ◽  
George Dominic ◽  
...  

2007 ◽  
Vol 2007 ◽  
pp. 218-218
Author(s):  
S.M.A. Sallam ◽  
M.E.A. Nasser ◽  
A.M. El-Waziry ◽  
I.C.S. Bueno ◽  
A.L. Abdalla

In Egypt, animals suffer from under feeding and mal-nutrition due to the shortage of local produced feed which are not sufficient to cover the nutritional requirements of animals. The annually amount produced of agro-by¬products in Egypt are around 2.5 million ton of rice straw and one million ton of sugarcane bagasse. These wastes are usually burned causing environmental pollution. The potential use of these wastes in ruminant ration will participate in reducing the shortage of feedstuffs and subsequently increase milk and meat production in Egypt. Gas measuring technique has been widely used for evaluation of nutritive value particularly to estimate agro-industry by-products, different feed classes and energy value of straws. Therefore, the main objective of this study was to assess the nutritive value of rice straw, date stone, sugarcane bagasse and berseem hay using the in vitro gas production technique.


2019 ◽  
Vol 62 (1) ◽  
pp. 1-8 ◽  
Author(s):  
Khalil Abid ◽  
Jihene Jabri ◽  
Yves Beckers ◽  
Hela Yaich ◽  
Atef Malek ◽  
...  

Abstract. This study was conducted in order to assess the influence of four doses (0, 0.5, 1, and 2 mg (g dry matter)−1 of commercial fibrolytic enzymes (MAXFIBER-I®, SHAUMANN GmbH, Wahlstedt, Germany) on in vitro fermentation of date palm (Phoenix dactylifera) by-products: date kernels, wasted dates, floral stems, and palm fronds. Rumen contents were obtained from two non-lactating Holstein cows. Enzyme supplementation to by-products was carried out 12 h prior to incubation. Compared to the control, the enzymatic supplementation quadratically increased the extent but not the gas production rate of date kernel fermentation. Indeed, the potential gas production increased notably by 14.8 % with the lowest enzymes dose following recorded gas production after 48, 72, and 96 h of incubation. The estimated organic-matter digestibility, metabolisable energy, and total volatile fatty acids in the incubation fluid tended to be increased with the lowest dose by 7.8 %, 8.4 %, and 13.9 % respectively. For the wasted dates, this feed additive tended to linearly increase the gas production rate of fermentation with the highest dose. On the other hand, this supplementation had no effect on the ruminal fermentation of the floral stems and palm fronds. The exogenous fibrolytic enzymes were more effective on fibrous but not on lignified date palm by-products.


2018 ◽  
Vol 27 (10) ◽  
pp. 679-685 ◽  
Author(s):  
Mark G. Rippon ◽  
Alan A. Rogers ◽  
Laura Sellars ◽  
Liam E. J. Purcell ◽  
Samantha Westgate

2015 ◽  
Vol 166 ◽  
pp. 143-149 ◽  
Author(s):  
Paul Malumba ◽  
Christelle Boudry ◽  
Olivier Roiseux ◽  
Jérôme Bindelle ◽  
Yves Beckers ◽  
...  

Animals ◽  
2019 ◽  
Vol 9 (11) ◽  
pp. 861 ◽  
Author(s):  
Jairo García-Rodríguez ◽  
María José Ranilla ◽  
James France ◽  
Héctor Alaiz-Moretón ◽  
María Dolores Carro ◽  
...  

The nutritive value of 26 agro-industrial by-products was assessed from their chemical composition, in vitro digestibility and rumen fermentation kinetics. By-products from sugar beet, grape, olive tree, almond, broccoli, lettuce, asparagus, green bean, artichoke, peas, broad beans, tomato, pepper, apple pomace and citrus were evaluated. Chemical composition, in vitro digestibility and fermentation kinetics varied largely across the by-products. Data were subjected to multivariate and principal component analyses (PCA). According to a multivariate cluster analysis chart, samples formed four distinctive groups (A–D). Less degradable by-products were olive tree leaves, pepper skins and grape seeds (group A); whereas the more degradable ones were sugar beet, orange, lemon and clementine pulps (group D). In the PCA plot, component 1 segregated samples of groups A and B from those of groups C and D. Considering the large variability among by-products, most of them can be regarded as potential ingredients in ruminant rations. Depending on the characteristic nutritive value of each by-product, these feedstuffs can provide alternative sources of energy (e.g., citrus pulps), protein (e.g., asparagus rinds), soluble fibre (e.g., sugar beet pulp) or less digestible roughage (e.g., grape seeds or pepper skin).


1999 ◽  
Vol 69 (1) ◽  
pp. 213-216
Author(s):  
M. C. Pieltain ◽  
J. I. R. Castan ◽  
M. R. Ventura ◽  
M. P. Flores

Abstract The nutritive value of banana by-products (leaves, pseudostems and raceme stems) for goats was studied by rumen degradability and in vitro digestibility techniques, voluntary intake and maintenance trials. Banana by-products had both a relatively low degradability and digestibility, with derived metabolizable energy content (MJ ME per kg dry matter (DM)) of 6·54 for leaves, 6·66 for pseudostems and 8·24 for raceme stems. Daily voluntary intake (g DM per kg M0·75) was 66·4 for leaves, 19·3 for pseudostems, and 15·3 for raceme stems. On these results, pseudostems and raceme stems would provide less than 0·30 of maintenance ME needs of goats. However, rations based only on banana leaves should meet more than 0·85 of the maintenance energy needs.


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