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| Format: | Artículo científico |
| Language: | en |
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Universidad CES
2019
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| Online Access: | https://www.redalyc.org/articulo.oa?id=321461742002 https://www.redalyc.org/journal/3214/321461742002/ https://www.redalyc.org/journal/3214/321461742002/html/ https://www.redalyc.org/journal/3214/321461742002/321461742002.epub https://www.redalyc.org/journal/3214/321461742002/movil |
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Table of Contents:
- Determination of volatile fatty acids clearance in intact ruminal digesta João Chrysostomo de Resende Júnior João Luiz Pratti Daniel André Rodrigues da Cunha Barreto-Vianna Juliano Vogas Peixoto Gregório Correia Guimarães Suely de Fátima Costa Ronaldo Francisco de Lima Fabiola da Cruz Meirelles Veterinaria Cr EDTA stomach Acidosis rumen physiology Cannulated cows were allocated to a cross-over design to evaluate the technique for determination of volatile fatty acid (VFA) clearance by infusion of marker solution into intact ruminal digesta, and verify the technique sensibility to the variation in the diet. Animals received diet of forage or forage plus concentrate and infusion of valeric acid and Cr-EDTA solution into intact or evacuated ruminal digesta. The total fractional rate of VFA clearance (FRVFAC) was estimated by the exponential decay of valerate over time. The passage FRVFAC to the omasum was assumed as the decay in ruminal Cr concentration and the absorption FRVFAC was estimated by the difference. The total FRVFAC and absorption did not differ between techniques. The passage FRVFAC, however, was lower when the marker solution was added into the evacuated digesta, probably reflecting the destabilization of the rumen environment during the evacuation and the largest volume of fluid observed in animals with evacuated digesta. In conclusion, the infusion of marker solution into intact digesta with homogenization performed by ruminal motility could be usable for the VFA ruminal clearance determination since it seems to cause lesser disturbance in the ruminal environment. 2019 artículo científico 1900-9607 https://www.redalyc.org/articulo.oa?id=321461742002 https://www.redalyc.org/journal/3214/321461742002/ https://www.redalyc.org/journal/3214/321461742002/html/ https://www.redalyc.org/journal/3214/321461742002/321461742002.epub https://www.redalyc.org/journal/3214/321461742002/movil 10.21615/cesmvz.14.1.1 en http://www.redalyc.org/revista.oa?id=3214 Revista CES Medicina Veterinaria y Zootecnia application/pdf Universidad CES Revista CES Medicina Veterinaria y Zootecnia (Colombia) Num.1 Vol.14