In-vitro Gas Production Parameters and Degradability of Diets Containing Graded Levels of Stem-Treated Cashew Nut Shell

2018 ◽  
Vol 4 (3) ◽  
pp. 39-46
Author(s):  
J.O. Ocheja ◽  
◽  
J.A. Ayoade ◽  
A. Oyibo ◽  
C.O. Ode ◽  
...  
Keyword(s):  
Gas Production ◽  
Production Parameters ◽  
Cashew Nut ◽  
In Vitro Gas Production ◽  
Cashew Nut Shell

scholarly journals In vitro gas production kinetics and digestibility in ruminant diets with different levels of cashew nut shell liquid

2018 ◽  
Vol 39 (4) ◽  
pp. 1669
Author(s):  
Tatiana García Díaz ◽  
Antonio Ferriani Branco ◽  
Luís Carlos Vinhas Ítavo ◽  
Geraldo Tadeu dos Santos ◽  
Silvana Teixeira Carvalho ◽  
...  
Keyword(s):  
Gas Production ◽  
Ammoniacal Nitrogen ◽  
Ruminal Fermentation ◽  
Cashew Nut Shell Liquid ◽  
Ruminal Ph ◽  
Cashew Nut ◽  
Production Kinetics ◽  
Ruminant Diets ◽  
Cashew Nut Shell

The aim of this study was to evaluate the effect of increasing levels of cashew nut shell liquid (CNSL) in ruminant diets on in vitro dry matter digestibility (IVDMD), gas production kinetics, ruminal fermentation parameters, ammoniacal nitrogen concentration (NH3-N), and pH of the artificial rumen contents. The experimental design was completely randomized in a factorial 5 x 4 + 1 design, with five concentrate levels (200, 400, 600, 800, and 1,000 g kg-1 DM) and four CNSL levels (0, 0.3, 0.6, and 1.2 g kg-1 DM), as well as a control diet comprising only whole-plant corn silage, totaling 21 treatments. The inclusion of concentrate linearly increased IVDMD, while CNSL levels showed a quadratic effect, with the maximum estimated at 0.5 g kg-1 of CNSL. The total gas production, the disappearance of the substrate, the fraction of slow degradation (fraction VF2), and the respective degradation rate (fraction µ2) linearly increased with increasing levels of concentrate in the diet. Increasing concentrate levels resulted in a linear increase in the concentration of NH3-N and a reduction in the pH of the rumen liquid. Increasing CNSL levels decreased the concentration of NH3-N and increased the ruminal pH. The inclusion of 0.5 g CNSL kg-1 in the ruminant diets improved IVDMD, without altering the kinetic parameters of ruminal fermentation. The addition of CNSL to ruminant diets reduces ammoniacal nitrogen production and can avoid drastic reductions in ruminal pH, favoring better fermentation in the rumen.

Prediction of in vitro gas production parameters of concentrate feeds by near infra-red reflectance spectroscopy (NIRS)

1999 ◽  
Vol 1999 ◽  
pp. 155-155 ◽  
Author(s):  
S. Fakhri ◽  
A. R. Moss ◽  
D.I. Givens ◽  
E. Owen
Keyword(s):  
Gas Production ◽  
Optical Data ◽  
Model Parameters ◽  
Production Parameters ◽  
In Vitro Gas Production ◽  
Kinetic Coefficients ◽  
Infra Red ◽  
Standard Normal ◽  
Kikuyu Grass

Herrero et al. (1996) found that NIRS was able to calibrate and cross-validate the static values of gas produced from the incubation of Kikuyu grass using manual in vitro gas production. However, the fermentation kinetic coefficients were not calibrated satisfactorily by NIRS. The aim of this study was to investigate the potential of NIRS as a means of predicting fermentation and the France et al. (1993) model parameters obtained from the automated in vitro gas production experiments for a range of concentrate feeds.Thirty-eight milled (1 mm) samples representing three typical concentrate feed types were scanned over the infra-red region covering 1100 to 2300 nm using an NIRS systems 6500 spectrometer. Optical data recorded as log 1/Reflectance were transformed to their standard normal variates and detrended values (SNV-D).

scholarly journals In vitro gas production parameters of sesame (Sesamum indicum) straw treated with sodium hydroxide, urea or sulphuric acid

2010 ◽  
Vol 1 (1) ◽  
pp. 243-243
Author(s):  
M. Malekkhahi ◽  
M. Danesh Mesgaran ◽  
A. Heravi Mousavi ◽  
A. Vakili ◽  
A. Tahmasbi ◽  
...  
Keyword(s):  
Sodium Hydroxide ◽  
Sulphuric Acid ◽  
Sesamum Indicum ◽  
Gas Production ◽  
Production Parameters ◽  
In Vitro Gas Production

scholarly journals Effect of peppermint (Mentha piperita) essential oil on in vitro gas production parameters of lucerne hay and cottonseed hulls

2010 ◽  
Vol 1 (1) ◽  
pp. 264-264 ◽  
Author(s):  
E. Jani ◽  
M. Danesh Mesgaran ◽  
A.R. Vakili ◽  
A. Soleimani ◽  
H. Jahani-Azizabadi
Keyword(s):  
Essential Oil ◽  
Gas Production ◽  
Mentha Piperita ◽  
Production Parameters ◽  
In Vitro Gas Production

scholarly journals Determination of Feed Values of Different Physical Processed Common Vetch Seed (Vicia Sativa) by in Vitro Gas Production Technique

2020 ◽  
Vol 8 (12) ◽  
pp. 2528-2532
Author(s):  
Yasemin Işık ◽  
Adem Kaya
Keyword(s):  
Rumen Fluid ◽  
Gas Production ◽  
Vicia Sativa ◽  
Production Technique ◽  
Common Vetch ◽  
Production Parameters ◽  
Production Values ◽  
In Vitro Gas Production

In this study, in vitro gas production values, gas production parameters (a, b, a+b and c) and organic matter digestibilities (OMD), metabolizable energy (ME), net energy lactation (NEL) contents, chemical compositions and feed values of different physical processed (raw, soaked, boiled and roasted) common vetch seeds (Vicia sativa) were determined by in vitro gas production technique. Rumen fluid, used in this study, was obtained by probe from one Holstein bull (seven years old, average live weight= 650 kg) raised at Research and Application Farm of Agricultural Faculty Atatürk University. Raw and treated common vetch seeds were incubated for 2, 4, 6, 8, 12, 24, 48, 72 ve 96 hours for the determination of in vitro gas production values and gas production parameters in rumen fluid. It was observed significant differences among all of the common vetch seeds in terms of chemical composition (DM, CA, OM, CP, EE, NDF, ADF, ADL) values (P

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