2013
DOI: 10.1590/s1516-35982013000500006
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Effects of 2-hydroxy-4(methylthio) butanoic acid isopropyl ester on rumen fermentation in cashmere goats

Abstract: -The impact of dietary 2-hydroxy-4-(methylthio) butyric acid isopropyl ester (HMBi) on rumen fermentation in cashmere goats was investigated to determine the effect of this ester on cashmere production. Four healthy castrated Liaoning cashmere goats with permanent rumen cannulas were assayed for four periods. In each period, goats were fed a different diet: control diet (containing 0% MetaSmart (an HMBi product)), diet I (containing 0.85% MetaSmart), diet II (containing 1.27% MetaSmart) or diet III (containing… Show more

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Cited by 5 publications
(4 citation statements)
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“…However, there was a tendency (P = 0.07) for supplementation of HMBi to decrease production of CH 4 /kg DMI compared to RPF. This reduction was not expected, since HMBi increases the total concentration of VFA and acetic acids: propionic acid ratio in the rumen of goats (Feng et al, 2013); thus, CH 4 production would be expected to be higher. Intake of DM for RPFA was numerically slightly higher than for RPF and DMI could therefore have affected CH 4 production as discussed above; however, the magnitude of the difference in DMI was not large enough to explain the lower CH 4 emission for RPFA compared to RPF found in the current experiment.…”
Section: Methane Productionmentioning
confidence: 97%
“…However, there was a tendency (P = 0.07) for supplementation of HMBi to decrease production of CH 4 /kg DMI compared to RPF. This reduction was not expected, since HMBi increases the total concentration of VFA and acetic acids: propionic acid ratio in the rumen of goats (Feng et al, 2013); thus, CH 4 production would be expected to be higher. Intake of DM for RPFA was numerically slightly higher than for RPF and DMI could therefore have affected CH 4 production as discussed above; however, the magnitude of the difference in DMI was not large enough to explain the lower CH 4 emission for RPFA compared to RPF found in the current experiment.…”
Section: Methane Productionmentioning
confidence: 97%
“…The fraction of ashes due to the contribution of minerals and the fraction of NDF by the contribution of energy to the activity of microbial flora in the rumen (Hamed & Elimam, 2009;Kumara et al, 2009;Olivares-Pérez et al, 2013). Furthermore, it has been observed that a mineral deficiency in ruminant diet can cause a decrease in the rumen microbial growth and affect the fermentative activity of bacteria on the fibre (Feng et al, 2013). Also in ruminants decreased dry matter intake and the digestibility of diets deficient in phosphorus (Feng et al, 2013).…”
Section: Experimental Studymentioning
confidence: 99%
“…Furthermore, it has been observed that a mineral deficiency in ruminant diet can cause a decrease in the rumen microbial growth and affect the fermentative activity of bacteria on the fibre (Feng et al, 2013). Also in ruminants decreased dry matter intake and the digestibility of diets deficient in phosphorus (Feng et al, 2013).…”
Section: Experimental Studymentioning
confidence: 99%
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