A comparison of ten rice-straw varieties grown at two different altitudes during a wet and a dry season, using the in vitro cumulative gas production technique

1996 ◽  
Vol 57 (3) ◽  
pp. 183-194 ◽  
Author(s):  
Barbara A. Williams ◽  
Siti Chuzaemi ◽  
Soebarinoto ◽  
Jaap van Bruchem ◽  
Huug Boer ◽  
...  
Keyword(s):  
Rice Straw ◽  
Gas Production ◽  
Dry Season ◽  
Production Technique ◽  
Different Altitudes

Evaluation of some ruminant feedstuffs using gas production technique, in vitro

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
Keyword(s):  
Rice Straw ◽  
Sugarcane Bagasse ◽  
Nutritive Value ◽  
Gas Production ◽  
Nutritional Requirements ◽  
Meat Production ◽  
Production Technique ◽  
By Products ◽  
Potential Use

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.

Estimation of fermentable energy by the automatic in vitro gas production technique for a selection of feedstuffs incubated alone and in combination

1998 ◽  
Vol 1998 ◽  
pp. 69-69
Author(s):  
S. Fakhri ◽  
A. R. Moss ◽  
D.I. Givens ◽  
E. Owen
Keyword(s):  
Organic Matter ◽  
Incubation Period ◽  
Gas Production ◽  
Production Technique ◽  
In Vitro Gas Production ◽  
Fe Content ◽  
The Individual ◽  
Gas Volume ◽  
Selection Of

The gas production (GP) technique has previously been used to estimate the gas volume (fermentable energy (FE)) of compound feed ingredients for ruminants (Newbold et al., 1996). It was shown that the FE content of feed mixtures was represented by the combination of the total gas from the incubation of the individual feeds. However this additivity might not be consistent throughout the incubation period. The objectives were to test whether 1. other GP parameters give better estimates of FE for simple mixtures and are they additive; 2. whether organic matter apparently degraded in the rumen (OMADR) explain differences in GP; and 3. to find out if there are any other better measures than OMADR for estimating FE.

scholarly journals The nutritional evaluation of forage-based mixed rations in New Zealand using an in vitro gas production technique. 1: analytical survey

2021 ◽  
pp. 1-6
Author(s):  
N.D. Meads ◽  
R. Tahmasbi ◽  
N. Jantasila
Keyword(s):  
Dry Matter ◽  
Volatile Fatty Acids ◽  
Environmental Science ◽  
Ghg Emissions ◽  
Negative Relationship ◽  
Real Data ◽  
Gas Production ◽  
Production Technique ◽  
In Vitro Gas Production

Greenhouse gas (GHG) emissions from livestock are an important consideration in environmental science. Estimating GHG production can be problematic at a farm or animal level, and requires controlled conditions to produce real data. An in vitro gas production technique (IVGPT) was developed to evaluate forage-based total mixed rations in digestion kinetics and GHG production. Two hundred and sixty samples of complete mixed rations (MR), which included a pasture component used in commercial lactating dairy herds, were collected around NZ across three calendar years, 2017-2019. Twenty of the 260 samples were 100% total mixed rations (TMR) with no pasture content. The samples were submitted for proximate analysis as well as IVGPT to generate GHG production figures. The results showed an average total gas production (TGP) of 129.82 ml/g dry matter (DM), 78.6% true digestibility (TDMD), 125.06 mg/g DM microbial biomass (MB), 20.16 g CH4/kg DM, and 12.8 MJME/kg DM. The average nutrient composition was dry matter (DM) 31.55%, crude protein (CP) 21.85%, neutral detergent fibre (NDF) 44.35%, and starch 7.03%. The IVGPT CH4 production was negatively correlated to NDF (r=-0.312), ADF (r=-0.193), TGP (r=-0.216), and was positively correlated with TDMD (r=0.250), apparent digestibility (ADMD) (r=0.614), starch (r=0.117) and volatile fatty acids (r=0.538). The MR diet showed a strong positive relationship with ADMD digestibility (P=0.01) and a negative relationship with fibre content (NDF, P=0.01 and ADF, P=0.01). However, CH4 production reduced linearly with increasing TGP (P=0.01). The results indicated that a greater CH4 production may be related to higher digestibility of mixed ration.

scholarly journals Nutrient Quality and in Vitro Digestibility of Bio-Ammoniated Rice Straw Bales

2020 ◽  
Vol 44 (3) ◽  
Author(s):  
Cuk Tri Noviandi ◽  
Dibya Ratnopama ◽  
Ali Agus ◽  
Ristianto Utomo
Keyword(s):  
Rice Straw ◽  
Crude Protein ◽  
Production Method ◽  
Proximate Analysis ◽  
Gas Production ◽  
Crude Fiber ◽  
In Vitro Digestibility ◽  
Nutrient Quality ◽  
Randomized Design

This study was done to determine the effects of bale sizes of bio-ammoniated rice straw on its nutrient quality and in vitro digestibility. Rice straw were bio-ammoniated by adding 2 g urea and 1 g probiotic/kg DM. By following a completely randomized design, rice straw was baled in 3 different weights (15, 25, and 35 kg) with six replications for each treatment, and then stored for 3 weeks. In the end of the week 3, bales were opened, aired, and then sampled for proximate analysis (dry matter, organic matter, crude protein, and crude fiber) and digestibility by in vitro gas production method. Using analysis of variance method, the proximate data showed that greater the bales size (15, 25, and 35 kg) increased crude protein (7.59, 7.86, and 9.95%, respectively; P<0.05) and decreased crude fiber contents (24.1, 22.1, and 18.8%, respectively; P<0.05). By increasing the size of bales also increased a, b, and c fractions (-0.79, 0.26, and 0.82 mL/100 mg DM; 20.2, 18.2, and 17.6 mL/100 mg DM; 0.012, 0.014, and 0.019 mL/h, respectively; P<0.05) as well as gas production (11.4, 11.5, and 13.8 mL/100 mg DM, respectively; P<0.05). It can be concluded that packing bio-ammoniated rice straw in 35 kg bale is the most effective way in increasing nutrient quality and digestibility of rice straw.

Nutritional Evaluation of non Forage High Fibrous Tropical Feeds for Ruminant Using in vitro Gas Production Technique

2005 ◽  
Vol 4 (5) ◽  
pp. 298-303 ◽  
Author(s):  
Songsak Chumpawadee . ◽  
Kritapon Sommart . ◽  
Thevin Vongpralub . ◽  
Virote Pattarajinda .
Keyword(s):  
Gas Production ◽  
Production Technique ◽  
Nutritional Evaluation ◽  
In Vitro Gas Production
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