Evaluation of models utilized in in vitro gas production from tropical feedstuffs
DOI:
https://doi.org/10.5433/1679-0359.2019v40n1p443Keywords:
Degradation kinetic, Evaluation of feedstuffs, Non-linear models.Abstract
This study aimed to evaluate the adequacy of seven non-linear models (France, Orskov and McDonald, Gompertz, exponential, logistic, two-pool exponential and two-pool logistic) in the adjustment of the curve and in the generation of parameters of cumulative gas production from five tropical feedstuffs (rice hulls, sugarcane, cassava chips, turnip by-product, and peach-palm by-product) used in ruminant nutrition. To this end, the feedstuffs were incubated in vitro in graduated glass syringes together with a buffer inoculum solution, in triplicate. Gas production was read at 0, 2, 4, 6, 8, 10, 12, 24, 26, 28, 30, 32, 36, 48, 52, 54, 56, 60 and 72 h of incubation. The data were used to generate the parameters of each model using the SAS statistical package. After the parameters were generated, the gas volume values were obtained at the aforementioned times, for each model, and these were compared with the values observed at incubation by using Model Evaluation System (MES) software. For the comparison, regression parameters were tested using Mayer’s test, in addition to the evaluation of the mean bias (MS), concordance correlation coefficient (CCC), and mean squared prediction error (MSPE). The France, Logistic, and Gompertz models, for rice hulls, and the Orskov and McDonald model, for cassava chips, were significant (P < 0.1) according to Mayer’s test, indicating lack of fit of the model. Besides presenting the lowest MSPE, the models that showed fit according to Mayer’s test were the two-pool logistic for rice hulls and cassava chips, and the two-pool exponential for sugarcane, turnip, and peach palm. Thus, the non-linear two-pool models are the most efficient in adjusting to the curve and in the generation of parameters of cumulative production of gases from the tested feedstuffs.Downloads
References
ASSOCIATION OF OFFICIAL ANALYTICAL CHEMISTS - AOAC. Official methods of analysis. 15th ed. Arlington: Association of Official Analytical Chemists, 1990.
BENEDETI, P. D. B.; FONSECA, M. A.; SHENKORU, T.; MARCONDES, M. I.; PAULA, E. M.; SILVA, L. G.; FACIOLA, A. P. Does partial replacement of corn with glycerin in beef cattle diets affect in vitro ruminal fermentation, gas production kinetic, and enteric greenhouse gas emissions? Plos One, San Francisco, v. 13, n. 6, p. 1-18, 2018.
BIBBY, J.; TOUTENBURG, H. Prediction and improved estimation in linear models. New York: John Wiley & Sons, 1977. 201 p.
CORNU, A.; BESLE, J. M.; MOSONI, P.; GRENET, E. Lignin-carbohydrate complexes in forages: structure and consequences in the ruminal degradation of cell-wall carbohydrates. Reproduction Nutrition Development, Les Ulis, v. 34, n. 5, p. 385-398, 1994.
FONDEVILA, M.; BARRIOS, A. The gas production technique and its application to the study of the nutritive value of forages. Cuban Journal of Agricultural Science, San José de las Lajas, v. 35, n. 3, p. 187-196, 2001.
FRANCE, J.; DHANOA, M. S.; THEODOROU, M. K.; LISTER, S. J.; DAVIES, D. R.; ISAC, D. A model to interpret gas accumulation profiles associated with in vitro degradation of ruminant feeds. Journal of Theoretical Biology, San Diego, v. 163, n. 1, p. 99-111, 1993.
FRANCE, J.; LÓPEZ, S.; KEBREAB, E.; BANNINK, A.; DHANOA, M. S.; DIJKSTRA, J. A general compartmental model for interpreting gas production profiles. Animal Feed Science and Technology, Amsterdam, v. 123-124, n. 1, p. 473-485, 2005.
GETACHEW, G.; BLÜMMEL, M.; MAKKAR, H. P. S.; BECKER, K. In vitro gas measuring techniques for assessment of nutritional quality of feeds: a review. Animal Feed Science and Technology, Amsterdam, v. 72, n. 3, p. 261-281, 1998.
GROOT, J. C. J.; CONE, J. W.; WILLIAMS, B. A.; DEBERSAQUES, F. M. A.; LANTINGA, E. A. Multiphasic analysis of gas production kinetics for in vitro fermentation of ruminant feeds. Animal Feed Science and Technology, Amsterdam, v. 64, n. 1, p. 77-89, 1996.
HALL, M. B. Neutral detergent-soluble carbohydrates. Nutritional relevance and analysis. Gainesville: University of Florida, 2000. 39 p.
JIAO, P. X.; HE, Z. X.; DING, S.; WALKER, N. D.; CONG, Y. Y.; LIU, F. Z.; BEAUCHEMIN, K. A.; YANG, W. Z. Impact of strain and dose of live yeast and yeast derivatives on in vitro ruminal fermentation of a high-grain diet at two pH levels. Canadian Journal of Animal Science, Ottawa, v. 1, n. 1, p. 477-487, 2018.
KRIZSAN, S. J.; JAN?ÍK, F.; RAMIN, M.; HUHTANEN, P. Comparison of some aspects of the in situ and in vitro methods in evaluation of neutral detergent fiber digestion. Journal of Animal Science, Champaign, v. 91, n. 2, p. 838-847, 2013.
LI, M.; ZI, X.; ZHOU, H.; HOU, G.; CAI, Y. Effects of sucrose, glucose, molasses and cellulase on fermentation quality and in vitro gas production of king grass silage. Animal Feed Science and Technology, Amsterdam, v. 197, n. 1, p. 206-2012, 2014.
LICITRA, G.; HERNANDEZ, T. M.; VAN SOEST, P. J. Standardization of procedures for nitrogen fracionation of ruminant feeds. Animal Feed Science and Technology, Amsterdam, v. 57, n. 4, p. 347-358, 1996.
LÓPEZ, S.; DHANOA, M. S.; DIJKSTRA, J.; BANNINK, A.; KEBREAB, E.; FRANCE, J. Some methodological and analytical considerations regarding application of the gas production technique. Animal Feed Science and Technology, Amsterdam, v. 135, n. 1, p. 139-156, 2007.
MAYER, D. G.; STUART, M. A.; SWAIN, A. J. Regression of real-world data on model output: an appropriate overall test of validity. Agricultural Systems, Montevideo, v. 45, n. 1, p. 93-104, 1994.
MELLO, R.; MAGALHÃES, A. L. R.; BREDA, F. C.; REGAZZI, A. J. Modelos para ajuste da produção de gases em silagens de girassol e milho. Pesquisa Agropecuária Brasileira, Brasília, v. 43, n. 2, p. 261-269, 2008.
MENKE, K. H.; STEINGASS, H. Estimation of the energetic feed value obtained from chemical analysis and gas production using rumen fluid. Animal Research and Development, Tu?bingen, v. 28, n. 1, p. 7-55, 1988.
MERTENS, D. R. Gravimetric determination of amylase-treated neutral detergent fiber in feeds with refluxing in beakers or crucibles: collaborative study. Journal of AOAC International, Arlington, v. 85, n. 6, p. 1217-1240, 2002.
NATIONAL RESEARCH COUNCIL - NRC. Nutrient requirements of dairy cattle. 7th ed. Washington: The National Academies Pres, 2001. 381 p.
NOGUERA, R. R.; SALIBA, E. O.; MAURICIO, R. M. Comparación de modelos matemáticos para estimar los parámetros de degradación obtenidos a través de la técnica de producción de gas. Livestock Research for Rural Development, Cali, v. 16, n. 11, p. 10-17, 2004. Available in: http://www.lrrd.org/lrrd16/11/nogu 16086.htm. Accessed at: 25 jan. 2018.
ORSKOV, E. R.; MCDONALD, I. The estimation of protein degradability in the rumen from incubation measurements weighted according to rate of passage. Journal of Agricultural Science, Toronto, v. 92, n. 2, p. 499-503, 1979.
PELL, A. N.; SCHOFIELD, P. Computerized monitoring of gas production to measure forage digestion in vitro. Journal of Dairy Science, Champaign, v. 76, n. 4, p. 1063-1073, 1993.
RAMIN, M.; HUHTANEN, P. Development of an in vitro method for determination of methane production kinetics using a fully automated in vitro gas system - A modelling approach. Animal Feed Science and Technology, Amsterdam, v. 174, n. 3-4, p. 190-200, 2012.
RODRIGUES, M. A. M.; CONE, J. W.; FERREIRA, L. M. M.; BLOK, M. C.; GUEDES, C. V. M. Relationship between in situ degradation kinetics and in vitro gas production fermentation using different mathematical models. Animal Feed Science and Technology, Amsterdam, v. 151, n. 1-2, p. 86-96, 2009.
SCHOFIELD, P.; PITT, R. E.; PELL, A. N. Kinetics of fiber digestion from in vitro gas production. Journal of Animal Science, Champaign, v. 72, n. 11, p. 2980-2991, 1994.
STATISTICAL ANALYSIS SYSTEM INSTITUTE - SAS INSTITUTE. System for Microsoft Windows: release 8.2. Cary: SAS Institute, 2008. CD-ROM.
UCKARDES, F.; KORKMAZ, M.; OCAL, P. Comparison of models and estimation of missing parameters of some mathematical models related to in situ dry matter degradation. The Journal of Animal & Plant Sciences, Lahore, v. 23, n. 4, p. 999-1007, 2013.
VAN SOEST, P. J.; ROBERTSON, J. B. Analysis of forages and fibrous foods. Ithaca: Cornell University, 1985. 202 p.
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