Daily rumen pH pattern of loose-housed dairy cattle as affected by feeding pattern and live yeast supplementation

Bach, À.; Iglesias, C.; Devant, M.

doi:10.1016/j.anifeedsci.2006.09.011

Cited by 146 publications

(138 citation statements)

References 20 publications

Supporting

Mentioning

107

Contrasting

Unclassified

Order By: Relevance

“…Similarly, Lila et al (2004) observed no effect of a twin-strain of Saccharomyces cerevisiae live cells (0.33 to 1.32 g/l) on pH. In contrast, Bach et al (2007) demonstrated that yeast supplementation (Saccharomyces cerevisiae Strain CNCM I-1077) to dairy cattle (5 g/day) contributes to the rumen environment by enhancing the ruminal pH. On the other hand, Mutsvangwa et al (1992) showed that ruminal pH was depressed by the addition of yeast culture (YeaSacc) in bulls (8 to 10 g/day).…”

Section: Discussionmentioning

confidence: 99%

“…Certain studies have indicated that supplementation of yeast to the diet may improve feed intake (Williams et al 1991), weight gain (Tripathi and Karim 2011), digestion (Jouany et al 1998), numbers of anaerobic and cellulolytic bacteria (Newbold et al 1995), ruminal pH value (Bach et al 2007) and alter the patterns of SCFA (Marden et al 2008). However, animal responses to yeast supplementation have not been consistent.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Effects of hydrolysed yeasts on ruminal fermentation in the rumen simulation technique (Rusitec)

Oeztuerk¹,

Emre²,

Breves³

2016

Vet. Med.

View full text Add to dashboard Cite

ABSTRACT:The objective of the present study was to investigate the effects of three different hydrolysed yeast products derived from Saccharomyces cerevisiae [hydrolysed whole yeast (HWY), less hydrolysed whole yeast (LHWY), and yeast cell wall (YCW)] on microbial fermentation characteristics using the rumen simulation technique (Rusitec) with three consecutive experiments. The Rusitec system consisted of six fermentation vessels. Each vessel received 5 g chopped meadow hay and 4 g concentrate (as-fed basis) daily for up to 22 days. Yeast products were added to the fermentation vessels at a concentration of 0.25 or 0.75 g/day. In most cases, ruminal microbial activity was stimulated by HWY and YCW, particularly at the 0.75 g/day level. HWY resulted in a decrease (P < 0.05) in ruminal pH and an increase (P < 0.05) in total short-chain fatty acid (SCFA), acetate, propionate and methane productions, and an increase in NH 3 -N concentration when compared with the control values. Ruminal pH was not altered, but total SCFA, acetate, propionate, butyrate, and methane productions as well as NH 3 -N concentration increased (P < 0.05) in response to YCW treatment. Digestibility of organic matter was not significantly affected by either HWY or YCW. The effects of LHWY on ruminal fermentation characteristics were negligible. These results indicate that degree of hydrolysation (low or high) and composition of yeasts (whole cell or cell wall) have remarkable effects on ruminal microbial activity in the Rusitec system.

show abstract

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Effects of hydrolysed yeasts on ruminal fermentation in the rumen simulation technique (Rusitec)

Oeztuerk¹,

Emre²,

Breves³

2016

Vet. Med.

View full text Add to dashboard Cite

show abstract

“…Yeasts, in particular different strains or commercial products of Saccharomyces cerevisiae, have been tested on dairy cows with a number of positive effects such as increased dry matter intake (DMI) and milk production (Wohlt et al,1998;Dann et al, 2000); improved diet digestibility (Erasmus et al, 1992;Marden et al, 2008); stabilized rumen pH (Bach et al, 2007); and stimulated rumen bacteria growth (Newbold et al, 1995). However, there are also many studies with no or negative responses to yeast supplementation (Mwenya et al, 2005;Longuski et al, 2009;Chung et al, 2011), probably related to the strong influence of the basal diet, the variation in yeast strains and the different commercial formulations.…”

Section: Introductionmentioning

confidence: 99%

Microbial biodiversity of the liquid fraction of rumen content from lactating cows

Sandri

Manfrin

Pallavicini

et al. 2014

Animal

View full text Add to dashboard Cite

Host and dietary interactions with the rumen microbiome can affect the efficacy of supplements, and their effect on the composition of the bacterial population is still unknown. A 16S rRNA metagenomic approach and Next-Generation Sequencing (NGS) technology were used to investigate the bacterial microbiome composition in the liquid fraction of the rumen content collected via stomach tubing. To investigate biodiversity, samples were taken from three groups of four lactating dairy cows given a supplement of either 50 g of potato protein (Ctrl group), or 50 g of lyophilized Saccharomyces cerevisiae (LY group) or 50 g of dried S. cerevisiae (DY group) in a potato protein support. Rumen samples were collected after 15 days of dietary treatments and milk production was similar between the three groups. Taxonomic distribution analysis revealed a prevalence of the Firmicutes phylum in all cows (79.76%) and a significantly (P < 0.05) higher presence of the genus Bacillus in the DY group. Volatile fattyacid concentration was not significantly different between groups, possibly because of relatively high inter-animal variability or limited effect of the treatments or both, and the correlation analysis with bacterial taxa showed significant associations, in particular between many Firmicutes genera and butyrate. Limited differences were observed between dietary treatments, but the lack of microbiome data before yeast administration does not allow to draw firm conclusions on the effect of dietary treatments.Keywords: rumen bacteria community, Saccharomyces cerevisiae, Next-Generation Sequencing, 16S rRNA, dairy cows Implications Next-Generation Sequencing technology offers the opportunity to gather information regarding the rumen microbiome by comparing repository databases of rumen bacteria 16S rRNA gene sequences generated through different experiments. The high extent of sequencing attained through this research provides valuable information on the microbial biodiversity of the liquid phase of the rumen and represents a contribution to research in rumen microbiology and dairy feed supplements. However, the effectiveness of yeast supplements to modify the rumen bacterial microbiome requires further investigation.

show abstract

“…Mikroba rumen dapat tumbuh dan berkembang serta berperan aktif dalam proses metabolisme, apabila ketersediaan nutrien dan bahan dasar (prekusor) dalam keadaan seimbang dan memadai. Disamping itu, kondisi rumen : derajat keasaman (pH) dan suhu juga sesuai dengan subtrat dan kebutuhan mikroba pencernanya (Bach et al, 2007). Tingginya masukkan karbohidrat mudah terfermentasi ke dalam rumen menyebabkan terjadinya penurunan pH rumen, tetapi dilain pihak kondisi ini sangat mendukung untuk pertumbuhan yeast secara optimal (Williams, 1988).…”

Section: Hasil Dan Pembahasanunclassified

“…Oleh karena itu, perlu dilakukan upaya untuk mengatur pola fermentasi rumen, melalui manipulasi ransum sapi. Dilaporkan oleh para peneliti bahwa penambahan yeast dalam ransum sapi perah dapat meningkatkan pH rumen (Harrison et al, 1988;Bach et al, 2007), meningkatkan jumlah dan aktivitas bakteri selulolitik (Wiedmeier et al, 1987;Harrison et al, 1988;Tang et al, 2008) dan pada akhirnya meningkatkan proporsi C 2 /C 3 dari 2,96 menjadi 3,45 (Dawson, 1987). Penambahan biakan yeast dalam ransum juga dapat meningkatkan biomasa mikroba (Dawson, 1987;Harrison et al, 1988), sehingga dapat meningkatkan suplai protein mikroba untuk sapi perah, yaitu 1,3 kali seluruh bakteri rumen dan 1,5 kali bakteri selulolitik (Weidmeir et al, 1987).…”

unclassified

Produk Metabolisme Rumen pada Sapi Perah Laktasi

Suwandyastuti

Rimbawanto

2015

J. Agripet

View full text Add to dashboard Cite

The rumen microorganism, as yeast, have an important role in rumen fermentation processes and the rumen metabolism product. A research had been done to study the use of yeast, Saccharomyces cereviseae in Lactating dairy cattle ration. The research had been conducted by experimental method, in a Latin Square Design. The animal were subjected as column and periods function as row. The treatment to be tested were four levels of yeast addition, namely : 0, 5, 10 and 15 g/cattle/day. The variables measured were rumen metabolism product : Total Volatile Fatty Acids (T-VFA), Acetate (C 2 ), Propionate (C 3 ), Butyrate (C 4 ), Formiate, Valerate, Nitrogen Ammonia and C 2 /C 3 . Based on the all variables measured, it was indicated that the addition of yeast Saccharomyces cereviseae up to 15 g/cattle/day have not changed the rumen metabolism product on lactating dairy cattle; although it was a normally production of total VFA (96,86 ± 9,94 mM/L and C 2 /C 3 (3,08 ± 0,14), but it was very high production of N-NH 3 (12,85 ± 2,72 mM/L). To increase the efficiency of metabolism processes, it is need the addition of fermentable carbohydrate in ration.

show abstract

Daily rumen pH pattern of loose-housed dairy cattle as affected by feeding pattern and live yeast supplementation

Cited by 146 publications

References 20 publications

Effects of hydrolysed yeasts on ruminal fermentation in the rumen simulation technique (Rusitec)

Effects of hydrolysed yeasts on ruminal fermentation in the rumen simulation technique (Rusitec)

Microbial biodiversity of the liquid fraction of rumen content from lactating cows

Produk Metabolisme Rumen pada Sapi Perah Laktasi

Contact Info

Product

Resources

About