Methane production by mixed ruminal cultures incubated in dual-flow fermentors.
TLDR
Dilution rate and forage-to-concentrate ratio altered the partition of substrate by microbes and underestimated methane output at higher dilution rates and with high forage diets.About:
This article is published in Journal of Dairy Science.The article was published on 2004-01-01 and is currently open access. It has received 70 citations till now. The article focuses on the topics: Dilution.read more
Citations
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Evaluation of the passage rate equations in the 2001 Dairy NRC model.
TL;DR: The sensitivity analysis indicated that accurate determinations of DMI, the Kd of the B fraction of feed CP, and feed CP are the most important variables needed to predict MP supply in lactating dairy cows with the NRC (2001) model.
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Digesta kinetics in gazelles in comparison to other ruminants: Evidence for taxon-specific rumen fluid throughput to adjust digesta washing to the natural diet.
Marie T. Dittmann,Marie T. Dittmann,Jürgen Hummel,Sven Hammer,Abdi Arif,Christiana Hebel,Dennis W. H. Müller,Julia Fritz,Patrick Steuer,Angela Schwarm,Michael Kreuzer,Marcus Clauss +11 more
TL;DR: Findings suggest that in different ruminant taxa, morphophysiological adaptations controlling MRTsoluteRR evolved to achieve a similar SF RR in relation to a %grass threshold, where species with >20% grass have higher SF.
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Effects of dilution rate and retention time of concentrate on efficiency of microbial growth, methane production, and ruminal fermentation in Rusitec fermenters.
TL;DR: Investigation of the effects of 2 dilution rates and 2 concentrate retention times on microbial growth, methane production, and fermentation of a 30:70 alfalfa hay:concentrate diet in Rusitec fermenters maintained at similar pH would indicate that using higher DL and shorter concentrate RT than those typically used in Russia would contribute to improving the simulation of in vivo fermentation of high-concentrates diets.
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Manipulation of in vitro ruminal fermentation and digestibility by dried rumen digesta
Anusorn Cherdthong,Metha Wanapat +1 more
TL;DR: In this article, the effect of dried rumen digesta (DRD) levels on rumen kinetic gas production, rumen ammonia-nitrogen (NH3-N) and digestibility of nutrients by using in vitro gas production techniques was investigated.
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Comparison of In vivo and In vitro Techniques for Methane Production from Ruminant Diets
TL;DR: In this article, the authors compared the methane (CH 4 ) production estimated by in vivo (sulfur hexafluoride tracer technique (SF 6 )) with that of two in vitro rumen simulation (RUSITEC) and gas production (IVGPT)) techniques.
References
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Principles and Procedures of Statistics.
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Estimación lineal de los requerimientos nutricionales del NRC para ganado de leche
TL;DR: Linear regression equations have been obtained to directly calculate the nutrient requirements of dairy cattle (TDN, DE, ME, NEL,CP, Ca, P, Vitamin A and Vitamin D) on different physiological stages: maintenance, pregnancy and milk production based on NRC nutrient requirements tables.
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A net carbohydrate and protein system for evaluating cattle diets: II. Carbohydrate and protein availability.
Charles J. Sniffen,J D O'Connor,P.J. Van Soest,Danny G. Fox,James B. Russell,James B. Russell,James B. Russell +6 more
TL;DR: The Cornell Net Carbohydrate and Protein System has a submodel that predicts rates of feedstuff degradation in the rumen, the passage of undegraded feed to the lower gut, and the amount of ME and protein that is available to the animal.