The influence of supplementing heifer diets with &lt;i&gt;Saccharomyces cerevisiae&lt;/i&gt; yeast on the activity of polysaccharidases in the rumen

Miltko, Renata; Kowalik, Barbara; Majewska, Małgorzata; Bełżecki, Grzegorz; Skomiał, J.

doi:10.22358/jafs/65632/2015

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…Contrarily, several studies showed that yeast supplementation increases the activity and amount of ruminal bacteria that degrade the fibre (Michalet-Doreau, Morand, & Martin, 1997;McAllister et al, 2011;Ding et al, 2014). However, Miltko, Kowalik, Majewska, Bełżecki, and Skomiał (2015) showed a reduction in the xylan-degrading enzymes, suggesting that microbial additives can inhibit the digestibility of hemicelluloses in the rumen and explain this lower ADG.…”

Section: Discussmentioning

confidence: 99%

The Effect of Live Yeast Supplementation on Beef Cattle Performance: A Systematic Review and Meta-Analysis

Sartori¹,

Canozzi²,

Zago³

et al. 2017

JAS

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This meta-analysis evaluates the effects of yeast supplementation (Saccharomyces cerevisiae) on dry matter intake (DMI) and average daily gain (ADG) in beef cattle. The inclusion criteria were complete and randomized trials and supplementation with yeast S. cerevisiae versus no supplementation to measure DMI or ADG. Data were extracted from relevant papers via pre-defined protocols. A meta-analysis of random effects was conducted for each indicator separately including the mean of the control and treated groups. The results were presented with the pooled mean difference (MD), 95% of confidence interval, and I² (percentage of total variation between studies that is due to heterogeneity rather than chance). A total of 12 publications reporting 22 trials conducted in 1,161 cattle were analysed. The heterogeneity between studies was high and ranged from 92 to 99%. No effects were observed in ADG with the inclusion of yeast in the diet (MD = -2.849 g/day, p = 0.492). However, there was a reduction in the DMI (MD = -0.885 kg/day; p = 0.023) despite the high heterogeneity among studies (I 2 = 92.4%; p < 0.001). The ADG increased when the forage level in the diet was between 30 and 50% (MD = 641.08 g/day; p = 0.001) and decreased when the level range from 51 to 75% (MD = -2.90 g/day; p < 0.001). In over 60% of the Neutral Detergent Fibre, the use of yeast in the diet decreased the ADG by 406.94 g/day (p = 0.034). Feedlot animals showed a reduction in the DMI (MD = -0.97 kg/day; p = 0.019) if supplemented with yeast. Supplementation with S. cerevisiae in the diet of beef cattle had no effect on ADG; however, it does improve the feed conversion due to the reduction in DMI.

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Section: Discussmentioning

confidence: 99%

The Effect of Live Yeast Supplementation on Beef Cattle Performance: A Systematic Review and Meta-Analysis

Sartori¹,

Canozzi²,

Zago³

et al. 2017

JAS

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“…The cumulative gas production technique was used to evaluate the nutritive value of feeds according to their fermentation kinetics (Kara, 2015;Kara et al, 2015). This technique has been applied successfully in different animal species, for example in ruminants (Kara, 2015;Kara et al, 2015;Miltko et al, 2015), horses (Elghandour et al, 2016), chickens (Guo et al, 2003) and rabbits (Bovera et al, 2010). Bovera et al (2006) suggested that the faeces could be used as an alternative inoculum instead of caecal content for gas production techniques in rabbit.…”

Section: Introductionmentioning

confidence: 99%

Effect of dietary fibre and condensed tannins concentration from various fibrous feedstuffs on <i>in vitro gas</i> production kinetics with rabbit faecal inoculum

Kara¹

2016

J. Anim. Feed Sci.

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“…The use of lysozyme in enzymatic studies provides a breakdown of the microorganisms' cell wall. This procedure is widely used by researchers in these types of experiments and is an alternative to efficient but timeconsuming sonication (26). The enzymatic studies revealed that all carbohydrates examined were digested throughout the entire length of the digestive tract.…”

Section: Discussionmentioning

confidence: 99%

Presence of carbohydrate-digesting enzymes throughout the digestive tract of sheep

Miltko

Bełżecki

Kowalik

et al. 2016

Turk J Vet Anim Sci

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IntroductionSheep breeding is one of the oldest professions closely associated with human civilization. The group of livestock called ruminants has a great utility. Sheep breeding yields meat and lambs, and, to a lesser degree, milk, wool, and hide. The physiology and morphology of sheep reflect adaptations to particular ecological niches. Based on food preference, sheep are herbivorous animals that prefer food rich in cellulose, i.e. 'grass/roughage eaters' (1). The most important feature of ruminants is the four-chambered stomach in the front of the gastrointestinal tract. Digestion of plant material occurs in the largest chamber, in the rumen, thanks to symbiotic microorganisms belonging to three taxonomic groups: bacteria, fungi, and protozoa (2). Among the protozoa, the most abundant and most important are the ciliates belonging to the family Ophryoscolecidae, followed by the family Isotrichidae. Protozoa differ in food preferences. Representatives of Ophryoscolecidae prefer insoluble carbohydrates, e.g., starch and cellulose, whereas Isotrichidae ciliates prefer soluble polysaccharides and do not utilize cellulose (3).Numerous studies have assessed digestive processes in the rumen, but relatively few provided information about digestion later in the digestive tract of ruminants. The goal of this work was to characterize degradation of carbohydrates in the full gastrointestinal tract of adult sheep. Materials and methods Animals, feeds, and feedingSix adult Polish Merino sheep with an average body mass of 55.3 kg were kept in separate pens. Their diet consisted of high-quality ingredients: 1560 g of meadow hay (which was collected on approximately 20 May, before heading), 250 g of ground barley, and 20 g of vitamin-mineral premix (Polfamix OK, Trouw Nutrition Polska, Grodzisk Mazowiecki, Poland), as shown in Table 1. The daily ration was divided into two equal parts and fed at 0700 and 1900 hours. Water was available ad libitum. Feed analyses were conducted in the Laboratory of Chemistry, The Kielanowski Institute of Animal Physiology and Nutrition, Polish Academy of Sciences, using AOAC methods (4). Cellulose was calculated as ADF -ADL according to Rinne et al. (5). Measurements of the length and weight of the digestive organsAnimals were weighed and then slaughtered 3 h after the morning feeding according to standard procedures. Immediately after slaughtering, the entire digestive tract of sheep was removed and the connective tissues and lipids were removed carefully. Particular organs in the digestive tract (the stomach including the rumen, reticulum, omasum, and abomasum, as well as the small intestine, cecum, and large intestine) were isolated by ligating these

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The influence of supplementing heifer diets with <i>Saccharomyces cerevisiae</i> yeast on the activity of polysaccharidases in the rumen

Cited by 5 publications

References 11 publications

The Effect of Live Yeast Supplementation on Beef Cattle Performance: A Systematic Review and Meta-Analysis

The Effect of Live Yeast Supplementation on Beef Cattle Performance: A Systematic Review and Meta-Analysis

Effect of dietary fibre and condensed tannins concentration from various fibrous feedstuffs on <i>in vitro gas</i> production kinetics with rabbit faecal inoculum

Presence of carbohydrate-digesting enzymes throughout the digestive tract of sheep

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