Evaluation of in vitro ruminal fermentation kinetics of diet mixed with mineral organic additive using artificial neural network

Sofyan, Ahmad; Herdian, Hendra; Sakti, Awistaros Angger; Anggraeni, Ayu; Amri, Aldicky Faizal; Kurniawan, T.; Darma, I. N. G.; Febrisiantosa, Andi

doi:10.1063/5.0143968

Cited by 1 publication

(1 citation statement)

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“…Data sets were taken with kind permission from [5] and [6] which reported the supplementation of organic minerals, probiotics, inulin, and protected amino acids into ruminal feed (20 observation data) and the use of swimming crab shells in dietary feed (14 observation data) to the response of ruminal gas production in vitro respectively. Both studies used The Neway program [7] to predict the kinetic equation of gases produced from rumen fermentation in vitro.…”

Section: Data Source and Statistical Methodsmentioning

confidence: 99%

The Use of R Programming Language for ModellingIn vitroRumen Fermentation Gas Production

Herdian,

Sofyan,

Sakti

et al. 2024

BIO Web Conf.

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The in vitro gas production technique is one of the feed evaluation methods that capture the characteristics of rumen microbial fermentation in response to the gas produced by feed ingredients. The gas production response is related and modelled to a unit of time with several parameters using non-linear regression mathematical equations. To facilitate this task, a script program in R has been developed that can perform the intended calculations. The calculation process uses nonlinear mathematical equations with intercepts. The equation shows that gas production (P) (mL) is influenced by several constants that indicate the share of gas production from the soluble fraction (FA) (mL), gas production from the potentially soluble part (FB) (mL), gas production rate (KC) (mL/h) and incubation time (T) (h). In addition to P and T, the three constants are tried to be derived by the program created. The data set is taken from several in vitro gas production studies that have been conducted previously. The Neway Software program of curve fitting calculations was used to validate the results, as the mean difference was tested using an unpaired T-test. Both programs showed the same calculation results for FA (P=0.9996), FB (P=0.9998), and KC (P=0.9962). The residual standard error (RSE) and R-square (R2) values of both programs also came with the same result they were RSE (P =0.9978), and R2 (P=0.6087) respectively. This shows that the R program script made can carry out the calculation process of making a model of the gas production equation for modeling in vitro gas production from rumen fermentation.

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Section: Data Source and Statistical Methodsmentioning

confidence: 99%