MARKERS OF RUMINAL KINETIC ON LACTATING HOLSTEIN x ZEBU COWS
DOI:
https://doi.org/10.5216/cab.v12i1.1234Keywords:
cattle productionAbstract
The efficiency of polyethylenoglicol (PEG) and Co-EDTA was evaluated on the estimate of the main parameters that characterize the liquid phase’s kinetics of Holstein x Zebu cows’ rumen. Significant differences were not observed (P>0,05) among the markers for estimates of ruminal volume (l), passage rate (l/h), retention time (h), outflow rate (l/h) and recycling rate (cycles/d). However, Co-EDTA was the most suitable marker and presented more stability than PEG did. When the spectrophotometry (Co-EDTA methodology of analysis) became impossible, the marker PEG can be a cheap alternative and it supplies satisfactory results, since, the meticulousness of the turbidimetric technique is respected.KEYWORDS: Co-EDTA, liquid phase, outflow rate, polyethylenoglicol, ruminal volume.
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Published
2011-03-31
How to Cite
SILVA, Janaina Januário da; SALIBA, Eloísa Oliveira Simões; AROEIRA, Luiz Januário Magalhães; RODRIGUÉZ, Norberto Mário; SILVA, André Guimarães Maciel. MARKERS OF RUMINAL KINETIC ON LACTATING HOLSTEIN x ZEBU COWS. Brazilian Animal Science/ Ciência Animal Brasileira, Goiânia, v. 12, n. 1, p. 01–07, 2011. DOI: 10.5216/cab.v12i1.1234. Disponível em: https://revistas.ufg.br/vet/article/view/1234. Acesso em: 14 dec. 2025.
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Animal Production
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