scholarly journals The nutritive value of rice straw in relation to variety, urea treatment, location of growth and season, and its prediction from in sacco degradability

1997 ◽  
Vol 10 (2) ◽  
pp. 215-222 ◽  
Author(s):  
Soebarinoto ◽  
Siti Chuzaemi ◽  
Jaap van Bruchem ◽  
Hartutik ◽  
Mashudi
2019 ◽  
Vol 59 (9) ◽  
pp. 1667
Author(s):  
Sineenart Polyorach ◽  
Metha Wanapat ◽  
Anusorn Cherdthong ◽  
Pongsatorn Gunun ◽  
Nirawan Gunun ◽  
...  

The objective of the present study was to determine the effect of urea–lime treatment on nutritive value and rumen degradability of rice straw by using the nylon-bag technique. Straw was assigned to treatments according to a 2 × 3 × 5 factorial arrangement in a completely randomised design. Factor A comprised two storage times (10 and 20 days), Factor B comprised three levels of lime addition (0%, 1% and 2%) and Factor C comprised five levels of urea treatment (1%, 2%, 3%, 4% and 5%). Two ruminal fistulated beef steers (410 ± 10 kg) were used to determine in situ DM degradability. The results showed that increasing the urea treatment level increased crude protein and organic matter concentrations, while concentrations of neutral detergent fibre and acid detergent fibre decreased linearly with an increasing lime treatment level (P < 0.05). Moreover, urea and lime treatment increased the soluble fractions at time zero (a), insoluble degradability fractions (b), rate of degradation (c), potential degradability (a+b) and the effective degradability of DM (P < 0.05). Furthermore, rice-straw treatment at 20 days showed a better straw chemical composition and rumen degradability (P < 0.05) than that at 10 days. In conclusion, treatment with urea and lime improved the quality and ruminal degradability of rice straw. The present study suggested that urea treatment can improve the nutritional value of rice straw, especially, treatment with 3% urea together with 2% lime.


2003 ◽  
Vol 2003 ◽  
pp. 166-166
Author(s):  
H. Fazaeli ◽  
A. Azizi ◽  
Z. A. M. Jelan ◽  
S. A. Mirhadi

Fungal treatment has been recently considered as a promising method for improving the nutritive value of straw (Zadrazil et al., 1997). Several studies have been conducted to identify species of white-rot fungi for assessing their ability to improve the nutritive value of straw (Yamakamwa et al., 1992). Since there are many species of fungi in nature, there is an interest in characterising of some species. The objectives of this experiment were to study the effect of five Pleurotus fungi on the chemical composition, in vitro digestibility and in sacco degradability of wheat straw and evaluate their effect in upgrading the nutritive value of lignicellulosic materials.


2001 ◽  
Vol 94 (1-2) ◽  
pp. 15-27 ◽  
Author(s):  
Ahoefa Agbagla-Dohnani ◽  
Pierre Nozière ◽  
Guy Clément ◽  
Michel Doreau

1997 ◽  
Vol 64 (1) ◽  
pp. 71-75 ◽  
Author(s):  
M. Blümmel ◽  
P. Bullerdieck

AbstractThe need to complement in vitro gas production measurements with residue determination is demonstrated by the recalculation and reassessment of published data on in vitro gas production, in sacco degradabilities and voluntary dry matter intake (DMI). The in sacco degradability — gas volume ratio was determined at 24 and 48 h of incubation, termed partitioning factor (PF) and combined with rate and extent parameters of in sacco degradability and in vitro gas production to predict DMI. In vitro gas production and in sacco degradability characteristics (a + b) and c as described by the equation y = a + b(1−ect) explained 0·373 and 0·668 respectively of the variation in DMI of 19 legume and grass hays. The complementation of gas production parameters by the PF24 increased the R2 value to 0·744 with PF24 accounting for 0·407 of the variation in DMI, the rate of gas production (c) for 0·218 and the extent of gas production (a + b) for 0·119 of the variation in DMI. As a single parameter, PF48 showed the highest correlation (R2 = 0·597) with DMI but the combination of PF4S with rate and extent of in sacco or in vitro gas production measurements did not improve the correlation further, probably due to an intercorrelation between rates of fermentation and PF4S. Hays which were degraded at faster rates had higher PF values indicating proportionally higher microbial yield and lower short-chain fatty acid production per unit substrate degraded. Generally, hays with high in sacco degradabilities but proportionally low gas production i.e. hays with high PF values showed higher DMI.


Author(s):  
Ali Ameen Saeed ◽  
Saja Intisar Abid

This study was conducted in Nutrition Lab. to investigate the effect of the type and level of substitution of urea with ruminant manure, M (sheep, cow and buffalo) on basis of nitrogen (N) content on the nutritive value of rice straw silage (RSS). Accordingly silages were nominated as, S-RSS, C-RSS and B-RSS. Urea (U) was substituted with dried manure at 6 combinations, 100:0, 90:10, 80:20, 70:30, 60:40 and 50:50 of U:M. Silage samples were prepared by treating chopped straw with pre-treated solution contained 10% low quality debis and 2% urea. Results showed that lower (P˂0.01) DM loss (11.4%) was observed in S-RSS, and with addition of urea only (3.6%).        Samples of S-RSS and C-RSS recorded higher (P˂0.01) Fleig points (Fp) as compared with those prepared by the addition of B-RSS, 60.42, 55.58 and 49.59 respectively. Reduction (P˂0.01) in this parameter was noticed in samples prepared with a combination of 100:0. Aerobic stability (AS) was a reduced (P˂0.01) in samples prepared by addition of S-RSS by 15 and 13 hours in comparison with samples of C-RSS and B-RSS respectively. Samples prepared with combination of 100:0 were prior (P˂0.01) as compared with other samples.        Results also showed an increase (P˂0.01) in in vitro digestibility of organic matter (IVOMD) in samples of S-RSS in comparison with samples prepared by addition of C-RSS and B-RSS, 49.99, 44.59 and 42.77% respectively. Samples prepared with combination of 100:0 recorded lower (P˂0.05) in vitro digestibility of dry matter (IVDMD) as compared with combinations of 70:30 and 60:40 of U: M, 40.52, 45.36 and 45.94% respectively.


2003 ◽  
Vol 2 (3) ◽  
pp. 153-158 ◽  
Author(s):  
A. Bhuiyan ◽  
M. A. Akbar . ◽  
M. E. Hossain .

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