Effect of monensin on performance in growing ruminants reared under different environmental temperatures

Salles, Márcia Saladini Vieira; Zanetti, Marcus Antônio; Titto, Evaldo Antônio Lencioni; Conti, Renata Maria Consentino

doi:10.1016/j.anifeedsci.2008.01.008

Cited by 8 publications

(7 citation statements)

References 42 publications

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“…The effects of monensin supplementation on total VFA concentration have been variable among previous studies (Salles et al, 2008;Khorrami et al, 2015;Lemos et al, 2016), which may be attributed to the duration of monensin treatment. In this long-term study, temporal variations in total VFA concentration were seen over the course of the monensin treatment (P < 0.001), which is in agreement with the results of Rogers et al (1997).…”

Section: Effects Of Monensin On Ruminal Vfa Profiles During Adaptation To Monensinmentioning

confidence: 93%

“…The animal's feed intake may interfere with the evaluation of monensin effects as discrepancies in its CH 4 -suppressing effects were found between measurements per day and per unit feed intake (Odongo et al, 2007). Additionally, it is well documented that ambient temperature can also influence CH 4 production (Salles et al, 2008;Bernier et al, 2012) by affecting animal's DMI and nutrient degradation (Kennedy and Milligan, 1978;von Keyserlingk and Mathison, 1993). However, the ambient temperature fluctuates in long-term studies, such as in the study of Guan (2006) where ambient temperature varied between −28.6 to 6.7°C over 16 wk.…”

Section: Introductionmentioning

confidence: 99%

“…Color version available online. and Mathison, 1993;Salles et al, 2008) by increasing passage rate and thus shortening the mean retention time (Kennedy and Milligan, 1978;Kadzere et al, 2002). Mathematically, DMI can influence the production of end products in rumen fermentation, and this is demonstrated by CH 4 emissions being proportional to DMI (Boadi and Wittenberg, 2002;Grainger et al, 2007).…”

mentioning

confidence: 99%

“…Mathematically, DMI can influence the production of end products in rumen fermentation, and this is demonstrated by CH 4 emissions being proportional to DMI (Boadi and Wittenberg, 2002;Grainger et al, 2007). Therefore, temperature can also affect rumen fermentation and CH 4 emissions indirectly (Salles et al, 2008;Bernier et al, 2012). Although several studies have shown that monensin has no effect on DMI (Odongo et al, 2007;Grainger et al, 2008;Waghorn et al, 2008), 2 meta-analyses (Duffield et al, 2008a;Appuhamy et al, 2013) revealed a 2.3 to 2.6% decrease in DMI in dairy cows fed monensin.…”

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confidence: 99%

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Dynamics of methanogenesis, ruminal fermentation, and alfalfa degradation during adaptation to monensin supplementation in goats

Ren

Liu

et al. 2018

Journal of Dairy Science

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This study aimed to examine the temporal (hourly within a day and daily over the long term) effects of monensin on CH emissions, ruminal fermentation, and in situ alfalfa degradation in dairy goats during dietary monensin supplementation by controlling the confounding effects of feed intake and ambient temperature. Six ruminally cannulated dairy goats were used, and they were housed in environmental chambers and fed a restricted amount of ration throughout the experiment. The experiment included a baseline period of 20 d followed by a treatment period of 55 d with 32 mg of monensin/d. During the whole experiment, CH production was measured every 5 d, whereas fermentation characteristics and in situ alfalfa degradation were analyzed every 10 d. The CH-depressing effect of monensin was time dependent on the duration of treatment, highly effective at d 5 but thereafter decreased gradually until d 55 even though CH-suppressing effect still remained significant. The decreasing effects of monensin on ruminal acetate proportion and acetate to propionate ratio also faded over days of treatment, and the acetate proportion returned up to the pre-supplementation level on d 50. Monensin supplementation elevated ruminal propionate proportion and decreased the effective ruminal degradability of alfalfa NDF, but both measurements tended to recover over time. The postprandial increase rate of hourly CH emissions was reduced, whereas that of propionate proportion was enhanced by monensin supplementation. However, the postprandial responses to monensin in CH emission rates, ruminal VFA profiles, and in situ degradation kinetics declined with both hours after feeding and days of treatment. Our results suggest that the CH-suppressing effect of monensin supplementation in goats was attributed to reductions in both ruminal feed degradation and acetate to propionate ratio, but those reductions faded with time, hours after feeding, and days of treatment.

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Section: Effects Of Monensin On Ruminal Vfa Profiles During Adaptation To Monensinmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

mentioning

confidence: 99%

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Dynamics of methanogenesis, ruminal fermentation, and alfalfa degradation during adaptation to monensin supplementation in goats

Ren

Liu

et al. 2018

Journal of Dairy Science

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“…Ítavo et al (2011a) found that lambs receiving 15 mL of green propolis daily had higher feed intake than those receiving monensin. The lower intake observed for the animals fed monensin may be related to a possible reduction in rumen motility (Deswysen et al, 1987), improvement in feed efficiency (Salles et al, 2008), or higher levels of propionate production (Aderinboye et al, 2012). The high flavonoid content in propolis extract, which displays bactericidal activity in the ruminal microorganisms (Aguiar et al, 2013), was the possible cause of the intermediate feed intake for this treatment.…”

Section: Discussionmentioning

confidence: 99%

Effects of dietary brown propolis on nutrient intake and digestibility in feedlot lambs

Silva

Ítavo

et al. 2014

R. Bras. Zootec.

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-The present study tested brown propolis in crude or extract form as a feed supplement for feedlot lambs to identify the type that most improves in vivo nutrient digestibility. Digestibility was assessed by both total fecal collection and internal markers and the results obtained by these techniques were compared. The completely randomized design was used to compare feed intake and nutrient digestibility of 24 male lambs aged seven months among four dietary treatments (crude brown propolis, propolis ethanol extract, monensin sodium, and control). Methods of feces collection were compared using a completely randomized split-plot design, with experimental diets corresponding to the main factor and the methods to estimate fecal production as the sub-factor. The diets had a roughage:concentrate ratio of 50:50, with Tifton-85 bermudagrass hay (Cynodon spp.) as roughage, and ground corn, soybean meal and minerals as concentrate. The lambs fed diets with crude propolis had higher feed intake than those fed diets containing monensin sodium. The different diets did not affect dry matter, organic matter, crude protein, neutral detergent fiber, or acid detergent fiber digestibility, but crude propolis supplementation provided higher ether extract digestibility than monensin sodium. Nutrient digestibility, as indicated by indigestible neutral detergent fiber, indigestible acid detergent fiber and sequentially-determined indigestible acid detergent fiber, was lower than that found with the fecal collection method. The addition of brown propolis has the same effect as monensin, but neither maximized nutrient availability in the diet of feedlot lambs at 7 months of age. Digestibility assessment using the internal markers indigestible neutral detergent fiber, indigestible acid detergent fiber and sequentially-determined indigestible acid detergent fiber is not an efficient method compared with total feces collection.

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Effect of dietary monensin inclusion on performance, nutrient utilisation, rumen volatile fatty acid concentration and blood status of West African dwarf bucks fed with basal diets of forages

Aderinboye

Onwuka

Arigbede

et al. 2011

Trop Anim Health Prod

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This experiment investigated the effect of dietary monensin on performance, nutrient utilisation, rumen volatile fatty acid and blood status in West African dwarf (WAD) goats fed with basal diets of forages. Four concentrate supplements were formulated to include 0 (MO), 15 (M15), 30 (M30) and 45 (M45) mg monensin/kg dry matter. Twenty-four WAD bucks (7.3 ± 1.20 kg initial body weight, aged 9-12 months) were randomly allotted to four experimental diets in a completely randomised design for 90 days, six animals per diet. Results indicated that animals fed M15, M30 and M45 diets had lower (P < 0.01) dry matter and water intake than those fed M0 diet. Crude protein and neutral detergent fibre intakes by the bucks followed similar trend. Animals on M15, M30 and M45 had better (P < 0.001) feed and protein efficiency ratio than those fed M0 diet. Rumen pH and total volatile fatty acid concentration were maintained (P > 0.05) while monensin decreased (P < 0.001) acetate/propionate ratio. Blood glucose increased (P < 0.001) from 59.1 mg/dl in animals on M0 diet to 67.8, 66.0 and 66.3 mg/dl in animals on M15, M30 and M45 diets. Overall, there were no variations among animals on M15, M30 and M45 diets. It is concluded that feeding monensin at 15 to 45 mg/kg DM of supplemental concentrate diets to West African dwarf bucks could be effective in improving feed and protein efficiency, manipulating the rumen for increased propionate production and increasing blood glucose levels.

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Effect of monensin on performance in growing ruminants reared under different environmental temperatures

Cited by 8 publications

References 42 publications

Dynamics of methanogenesis, ruminal fermentation, and alfalfa degradation during adaptation to monensin supplementation in goats

Dynamics of methanogenesis, ruminal fermentation, and alfalfa degradation during adaptation to monensin supplementation in goats

Effects of dietary brown propolis on nutrient intake and digestibility in feedlot lambs

Effect of dietary monensin inclusion on performance, nutrient utilisation, rumen volatile fatty acid concentration and blood status of West African dwarf bucks fed with basal diets of forages

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