The effect of feeding a dried yeast culture on the performance of beef cattle finishing on a grass silage based ration

There is increasing consumer resistance to feeding antibiotic performance enhancers to beef cattle which has created interest in the use of yeast cultures as an alternative. Yeast cultures such as Diamond V ‘XP’ (Rumenco) are produced by growing selected yeast strains (on a semi-solid medium under stressed conditions) which are then dried. Yeast cultures are now used in a considerable number of North American beef feed lots. The objective of this work was to evaluate the effect of feeding ‘XP’ Yeast to finishing beef cattle on a typical UK grass silage-based diet.

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The Influence of a dietary supplement of a dried yeast culture on milk yield and composition in dairy cows on grass silage

Proceedings of the British Society of Animal Science ◽

10.1017/s0308229600030452 ◽

1996 ◽

Vol 1996 ◽

pp. 75-75 ◽

Cited By ~ 1

Author(s):

P. Rowlinson ◽

S.P. Marsh ◽

C. Tufnell ◽

W. Taylor

Keyword(s):

Dairy Cows ◽

Yeast Culture ◽

Grass Silage ◽

Yeast Cultures ◽

Yeast Strains ◽

Holstein Friesian ◽

Cow Performance ◽

Semi Solid ◽

Dietary Treatments ◽

Effect Of Feeding

There is considerable interest in the effect of dietary supplementation with probiotics or yeast cultures on diary cow performance. Yeast cultures such as Diamond V 'XP' are produced by growing selected yeast strains on a semi-solid medium under stressed conditions, which are then dried. Yeast cultures are now used by a majority of the high yielding herds in North America (McCullough 1995). The objective of this work was to evaluate the effect of feeding 'XP' Yeast to a moderate-high yielding (X, 6800kg) herd of dairy cows fed a typical UK diet based on grass silage.72 recently calved Holstein-Friesian dairy cows were allocated to one of two dietary treatments on which they remained throughout 150 days of winter feeding. Both groups received ad libitum grass silage which had a Dry Matter of 224 g/Kg, an estimated ME of 10.8 MJ/Kg DM and a Crude Protein (CP) of 156 g/Kg DM.

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An evaluation of a dried yeast culture on milk yield and composition in dairy cows fed grass and maize silage

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200002398 ◽

1999 ◽

Vol 1999 ◽

pp. 84-84

Author(s):

S. P. Williams ◽

S. P. Marsh ◽

D. Williams

Keyword(s):

Dairy Cows ◽

Solid Medium ◽

Yeast Culture ◽

Maize Silage ◽

Grass Silage ◽

Yeast Cultures ◽

Yeast Strains ◽

Cow Performance ◽

Semi Solid ◽

Effect Of Feeding

There is considerable interest in the effect of dietary supplementation with probiotics or yeast cultures on dairy cow performance. Yeast cultures such as Diamond V ‘XP’ are produced by growing selected yeast strains on a semi-solid medium under stressed conditions, which are then dried. They are now used by a majority of the high yielding herds in North America (McCullough, 1995) and have been shown to have a significant effect on butterfat and protein yield with grass silage fed UK dairy cows (Rowlinson et al., 1995). The objective of this work was to evaluate the effect of feeding a yeast culture to a medium-high yielding (8,100 kg) herd of dairy cows fed a diet based on grass and maize silage.

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Effect of a yeast culture (Yea-Sacc1026) on the performance of cereal fed beef cattle

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200011121 ◽

2005 ◽

Vol 2005 ◽

pp. 201-201

Author(s):

S. P. Marsh ◽

C. M. Kneale ◽

D. Wilde

Keyword(s):

Saccharomyces Cerevisiae ◽

Beef Cattle ◽

Feed Additives ◽

Yeast Culture ◽

Yeast Cultures ◽

Micro Organisms ◽

Over 40 Years ◽

Effect Of Feeding ◽

Single Farm Payment ◽

Live Yeast

The introduction of the Single Farm Payment support system sees a change from headage to area payments. The removal of the Beef Special Premium for steers is likely to see a move towards either 12-15 month intensive finishing systems or low input extensive grass based 24-30 month finishing systems. Late maturing breed type cattle reared on the latter system may however require a 2-3 month intensive finishing period to achieve adequate fat cover. With falling cereal prices there is increased interest in their use in beef cattle rations. Antibiotic based feed additives e.g., monensin sodium, have been successfully used for over 40 years to manipulate microbial activity and improve beef cattle performance. The use of monensin sodium will be banned from January 2006 and there is therefore a requirement to find alternative ‘natural’ products that can improve the efficiency of beef production with intensive cereal based rations. Yeast cultures are composed of yeast (Saccharomyces cerevisiae ) and the medium on which it was grown. These products are dried in a manner which preserves the fermenting activity of the yeast. It is suggested that production responses associated with the use of live yeast culture supplements in ruminants may be related to their stimulatory effects on specific groups of micro-organisms in the rumen. The objective of this study was to determine the effect of feeding a live yeast culture (Yea-Sacc1026) on the performance of cereal fed beef cattle.

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A comparison of wheat and barley as supplements to grass silage for finishing beef cattle

Animal Science ◽

10.1017/s0003356100006164 ◽

1993 ◽

Vol 56 (1) ◽

pp. 61-67 ◽

Cited By ~ 2

Author(s):

R. W. J. Steen

Keyword(s):

Beef Cattle ◽

Spring Barley ◽

Live Weight ◽

Ammonia Nitrogen ◽

Carcass Composition ◽

Metabolizable Energy ◽

Crude Fibre ◽

Grass Silage ◽

Soya Bean Meal ◽

Finishing Beef Cattle

AbstractTwo randomized-block experiments were carried out to examine the relative value of wheat and barley as supplements to grass silage for finishing beef cattle. In each experiment unwilted, formic acid-treated silage was offered ad libitum and supplemented with 500 g soya-bean meal and 50 g minerals and vitamins to 44 12-month-old bulls for 157 and 172 days in experiments 1 and 2 respectively. Twelve of the animals also received 2·5 kg rolled spring barley (LB), 12 received 4·0 kg barley (HB) and 20 received 3·25 kg rolled wheat (W). For experiments 1 and 2 respectively the barley contained 796 and 787 g dry matter (DM) per kg; 118 and 105 g crude protein (CP) per kg DM; 47 and 57 g crude fibre per kg DM; the wheat contained 845 and 800 g DM per kg; 112 and 116 g CP per kg DM; 23 and 25 g crude fibre per kg DM; and the silages contained 190 and 177 g DM per kg; 153 and 176 g CP per kg DM; 80 and 104 g ammonia-nitrogen per kg total nitrogen. On average over the two experiments, for treatments LB, HB and W respectively, silage DM intakes were 5·4, 4·7 (s.e. 0·14) and 4·9 (s.e. 0·11) kg/day; total DM intakes 7·9, 8·3 (s.e. 0·14) and 8·1 (s.e. 0·11) kg/day; metabolizable energy intakes 91·4, 97·8 and 94·2 MJ/day; live-weight gains 1·04,1·19 (s.e. 0·029) and 1·10 (s.e. 0·023) kg/day and carcass gams 0·65, 0·77 (s.e. 0·017) and 0·70 (s.e. 0·013) kg/day. It is concluded that the feeding value of wheat was proportionately 0·98 of that of barley for finishing beef cattle when given as a supplement to grass silage, and that the type of cereal offered did not affect silage intake or carcass composition.

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Differentiation of Yeast Cultures in Ruminant Feedingstuffs Using a Rapid DNA Fingerprinting Technique

Proceedings of the British Society of Animal Production (1972) ◽

10.1017/s0308229600026489 ◽

1994 ◽

Vol 1994 ◽

pp. 101-101

Author(s):

Elizabeth Moore ◽

Denis R. Headon

Keyword(s):

Sodium Dodecyl ◽

Yeast Cells ◽

Microbial Populations ◽

Yeast Culture ◽

Yeast Cultures ◽

Yeast Strains ◽

Genetic Sequences ◽

Polymerase Chain ◽

Different Strains ◽

Triton X

Research indicates that certain yeast strains are beneficial in their capacity to stimulate key microbial populations. This stimulation is strain specific with similar yeast strains exerting their effect on totally different microbial populations. Future yeast culture supplements may contain mixtures of different strains designed to suit specific diets. This, therefore, requires the development of a rapid sensitive technique to differentiate among taxonomically similar yeast strains in animal diets. This technique, termed the Randomly Amplified Polymorphic DNA (RAPD) assay, is based upon the use of randomly designed short polynucleotide primers to amplify genetic sequences from the DNA of the desired yeast strain. Our objective involves the development of this technique to distinguish between closely related yeast strains present in feed. The feed sample investigated was a standard cattle ration containing three strains of Saccharomyces cerevisiae (1026, 2045 and 2020) and Candida utilis 3001 at a concentration of 106 CFU/g respectively. Isolation of single colonies of yeast strains present was achieved by feed extraction in dilution buffer followed by plating a series of dilutions on rose-bengal agar. Thirty randomly selected colonies were cultured in YPD (1% yeast extract, 2% peptone, 2% glucose) broth for 24 - 30 hours at 30°C. Genomic DNA was isolated from yeast cells by standard methods based on subjection of the cells to vortex mixing in the presence of glass beads, triton X-100, sodium dodecyl sulphate, phenol and chloroform. Isolated DNA from randomly selected colonies was amplified by Polymerase Chain Reaction (PCR) for 45 cycles of 1 min at 94°C, 1 min at 36°C and 1 min at 72°C using randomly designed 10 bp primers.

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603 Replacement of rolled barley with citrus pulp in a concentrate supplement for finishing beef cattle offered grass silage

Journal of Animal Science ◽

10.2527/asasann.2017.603 ◽

2017 ◽

Vol 95 (suppl_4) ◽

pp. 295-295 ◽

Cited By ~ 1

Author(s):

M. J. Kelly ◽

A. P. Moloney ◽

A. K. Kelly ◽

M. McGee

Keyword(s):

Beef Cattle ◽

Grass Silage ◽

Citrus Pulp ◽

Finishing Beef Cattle

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A comparison of wheat and barley as supplements to grass silage for beef cattle

Proceedings of the British Society of Animal Production (1972) ◽

10.1017/s0308229600010059 ◽

1989 ◽

Vol 1989 ◽

pp. 4-4

Author(s):

R. W. J. Steen

Keyword(s):

Beef Cattle ◽

Spring Barley ◽

Live Weight ◽

Beef Breed ◽

Once Daily ◽

Grass Silage ◽

Feeding Value ◽

Soyabean Meal ◽

Ad Libitum ◽

Finishing Beef Cattle

Two randomised-block experiments have been carried out to examine the relative feeding value of wheat and barley as supplements to grass silage for finishing beef cattle. In each experiment unwilted, formic acid-treated silage was offered ad libitum and supplemented with 500 g soyabean meal and 50 g minerals and vitamins to 44 twelve month old bulls for 157 and 172 days in experiments 1 and 2 respectively. In addition 12 animals received 2.5 kg rolled spring barley (LB), 12 received 4.0 kg barley (HB) and 20 received 3.25 kg rolled wheat (W). Silage was offered once daily and concentrates twice daily in two equal meals.Eleven British Friesian bulls and thirty-three bulls which were Friesian x Continental beef breed were used in each experiment. They were initially 402 and 385 kg live weight in experiments 1 and 2 respectively. In both experiments the animals were housed and fed in groups of four in slatted pens. All animals were slaughtered at the end of the experiments to obtain carcass data.

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The Effect of Yeast Culture Addition to Diets of Grass and Grass Silage on Rumen Bacterial Numbers

Proceedings of the British Society of Animal Production (1972) ◽

10.1017/s0308229600026453 ◽

1994 ◽

Vol 1994 ◽

pp. 98-98

Author(s):

S.M. El Hassan ◽

C.J. Newbold ◽

R.J. Wallace

Keyword(s):

Saccharomyces Cerevisiae ◽

Bacterial Growth ◽

Dry Matter ◽

Diet Composition ◽

Yeast Culture ◽

Microbial Protein ◽

Grass Silage ◽

Yeast Cultures ◽

Stimulation Of

It has been suggested that the mechanism by which yeast cultures (YC), based on Saccharomyces cerevisiae, improve ruminant production is by stimulating rumen fibre digestion and microbial protein flow from the rumen. Both of these effects have in turn been related to the increases in bacterial growth in the rumen observed when YC is added to the diet. However, although it is has been shown that the effectiveness of YC in improving productivity is influenced by the composition of the diet fed (Williams and Newbold, 1990), little is known about how the ability of YC to stimulate bacterial numbers in the rumen is affected by diet composition.The effect of diet on the stimulation of bacterial numbers in the rumen by YC was investigated in the rumen simulation technique (Rusitec). Grass silage was prepared from a sward of perennial rye-grass, without the use of a preservative. Fresh grass was collected from the sward prior to ensilage and stored at -20°C. Grass (5.96 g dry matter (DM) /day) and grass silage (6.54 g DM/ day) were compared alone or supplemented with 500 mg / day YC (Yea-sacc, Alltech), in triplicate, in an experiment lasting 21 days.Four rumen cannulated sheep, allowed ad lib access to grass silage, were used to investigate further the effects of YC on bacterial numbers in the rumen in vivo. The effects of YC (4 g/ day) were investigated in a 2 × 2 factorial design with 28 day periods.

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The potential of a range of maize silages, included as a component of grass silage based diets, to increase the dry matter and energy intakes of finishing beef cattle

Proceedings of the British Society of Animal Science ◽

10.1017/s1752756200007717 ◽

2002 ◽

Vol 2002 ◽

pp. 115-115

Author(s):

R.M. Kirkland ◽

R.W.J. Steen ◽

F.J. Gordon ◽

T.W.J. Keady

Keyword(s):

Beef Cattle ◽

Dry Matter ◽

Nutrient Supply ◽

Maize Silage ◽

Grass Silage ◽

Metabolisable Energy ◽

Finishing Beef Cattle ◽

Forage Mixtures ◽

Forage Diets

The inclusion of maize silage in grass silage based diets may offer the potential to improve productivity on farms due to associative effects resulting from mixed-forage diets on nutrient supply to the animal. The objective of the present study was to examine the effects on dry matter (DM) and metabolisable energy (ME) intakes of beef cattle of offering forage mixtures comprising grass and maize silages of differing qualities.

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