How to add yeast to broiler feed to reduce use of antibiotics.

How to use yeast in broiler feed to reduce use of antibiotics. Meat color is an important visual quality factor when consumers purchase chicken.

However, high use of antibiotics during broiler raising to achieve desirable color and freshness may have residual effects on human health.

How to use yeast in broiler feed to reduce use of antibiotics. To prevent irrational use of antibiotics, a supplementary application of yeast (Saccharomyces cerevisiae) with antibiotics was suggested.

In this study, yeast powder mixed with antibiotics was found effective as probiotics in increasing broiler weight, improving feed efficiency, and preventing growth of pathogen microorganisms.

Baker's yeast can make plants tolerate soil contamination.

Baker's yeast can make plants tolerate soilcontamination. Most plant species, including crops, cannot tolerate the toxic effects of soil pollutants, which dramatically impair their growth and development. In a new study, a research team discovered that two genes from baker's yeast can increase plant resistance to a broad range of toxic substances, enabling their growth in contaminated soils. The study published in Scientific Reports, a research team led by Paula Duque from the Instituto Gulbenkian de Ciencia (IGC; Portugal) discovered that two genes from baker's yeast can increase plant resistance to a broad range of toxic substances, enabling their growth in contaminated soils. Heavy metals and organic pollutants released into the environment by the industry, as well as the misuse of herbicides and pesticides commonly used in agriculture, negatively affect the quality of soils. Although some plant species are able to remove soil contaminants and grow normally, but these are a small minority. The current strategies to decontaminate soils are very expensive and not so effective. Researchers has been looking for alternative strategies to make plants more resilient to toxic compounds,and a possible solution may lie in Saccharomyces cerevisiae the common baker's yeast. The incorporation of the yeast to soil will boost growth and also solve an environmental problem of pollution and toxicity.

Yeast cell wall derivatives improve broiler gut health.

Mannan-oligosaccharides (MOS), mannose rich fractions (MRF) improve broiler microflora to strengthen gut health, reduce antibiotic usage and fight resistance.Given the ever-increasing rise in bacterial strains that are less and less sensitive to existing treatments, antibiotic resistance has the potential to become one of the greatest problems of our generation. While abuse of antibiotics in humans is probably the major contributor, policy makers have turned the spotlight on agricultural use as a way to control the problem. Treatment of animals with antimicrobials can cause drug resistance to zoonotic pathogens. Bacteria from animals can be spread to humans via food products during slaughter and processing. This spread has been extensively documented for conventional food-borne pathogens, such as Salmonella, Campylobacter and E. coli. While the debate rages over what is driving the seemingly inexorable rise of antibiotic-resistant microbes, alternatives to antibiotics and products capable of reducing the risk of antibiotic resistance transfer through the food chain are clearly required. Globally, it is recognized that there is no so-called “silver bullet” to replace antibiotic use in animal production and producers will almost certainly have to improve hygiene and husbandry to address the issue. Products that will assist the move to antibiotic-free production status include many that are designed to regulate and support the gut environment and its microflora: 1)Coccidial vaccines. 2)Probiotics 3) Feed enzymes. 4) Functional nutrients such as nucleotides 5) Organic acids and feed hygiene products. 6) Organic minerals 7) Plant-based products such as herbs, spices and essential oils. 8) Yeast cell wall derivatives such as mannan-oligosaccharides (MOS) and mannose rich fractions (MRF). The functional ingredients currently in use for microbial control, MOS and MRF are widely used in animal nutrition and have been shown to improve animal performance in a manner similar to antibiotic-like growth promoters. Since 1999 the use of MOS in animal feed has become more prominent, mainly due to the European ban on prophylactic antibiotic growth promoters in animal feed. Given their ability to bind and limit the colonization of gut pathogens, MOS and MRF have proven to be an effective solution for antibiotic-free diets, as well as providing support for immunity and digestion.Read more

Yeast Can Now Produce THC, Marijuana’s Infamous Compound,cannabidiol .

Yeast, the sugar-gobbling microorganism that’s filled our bellies with beer and bread for millennia, has a new, increasingly important, role to play in society: serving as a therapeutic drug factory. In August, scientists announced they had genetically engineered yeast to produce the painkiller hydrocodone, and even before that breakthrough, modified yeast churned out the anti-malarial drug artemisinin. Now, scientists have customized yeast to create THC (the marijuana chemical that produces a “high”) and cannabidiol Biochemists from the Technical University in Dortmund, Germany, created a genetically-engineered yeast strain to produce very small amounts of THC or cannabidiol. Unlike normal yeast, however, these custom yeast have to be fed cannabigerolic acid, which is a precursor molecule to THC and cannabidiol. Using a molecular precursor as a starting point is a bit like reading a book from the middle chapters to its conclusion. Ideally, the entire process would start with simple sugars — or chapter 1 — rather than precursors to complete the entire chemical pathway that the marijuana plant does naturally. However, scientists believe they’ll get to that point and scale up production for industrial use in the near future, the New York Times reports. The team published its work with the yeast strain that produces THC in the journal Biotechnology Letters. They also created a separate strain that produces cannabidiol, but those data are yet to be published. Marijuana is chock full of molecular compounds that are fascinating to scientists. Synthetic THC is already available in pill form and it is used to ease nausea in cancer patients undergoing chemotherapy, or stimulate the appetites of people with H.I.V. or other infections. Cannabidiol, a compound that is not psychoactive, has shown potential to reduce the frequency of seizures in epileptic individuals. Yeast factories could help scale up production of these chemicals not just for therapy, but for research too. Producing marijuana’s constituent compounds in vast quantities would give researchers a supply of marijuana’s myriad chemicals to better understand how, or if, they work as advertised. Still, at the moment, the plant is far more efficient than the yeast — modern marijuana strains can contain more than 30 percent THC by dry weight. So there’s still a long way to go before THC-producing yeast change the landscape of cannabis research. Researchers will likely need to splice many more genes into species of yeast to complete the entire chemical reaction in a single strain. But at the rate that genetically-modified yeast research is advancing, it may not be a long wait. culled from science for the curious Discover.

Cattle Feeding Probiotics offer alternative to in-feed antibiotics.

Focusing on gut health may help cattle producers find replacements for in-feed antibiotics now that the Veterinary Feed Directive (VFD) is in place. By 2017, the U.S. Food and Drug Administration (FDA) will require medically important antibiotics — those approved for use in both humans and animals — to be used in animals only under the order of a veterinarian. When producers incorporate specific medications into feed, the rate and timing must be based on a VFD issued by a licensed veterinarian. Producers will also be required to retain VFD records for two years. An easy, cost-effective additive — that is not regulated under a VFD — is a probiotic or direct-fed microbial (DFM). These natural products help tip the balance in favor of beneficial microbes in the gut. Supporting the dynamic and robust bacterial communities in the lower intestinal tract can naturally promote a positive systemic immune response within the animal. In turn, this positive response can act as a natural preventive to help reduce the need for treatment or even the use of on-arrival antibiotics. One probiotic, Saccharomyces cerevisiae boulardii CNCM I-1079, has been proven to naturally activate cattle’s immune response and decrease the need for treatment. In fact, S. c. boulardii CNCM I-1079 has been shown to improve cattle feed uptake, lower morbidity and lower mortality. In a study of cattle sourced from auction barns across the southeastern United States, cattle fed S. c. boulardii CNCM I-1079, had 39 percent fewer re-treatments for Bovine Respiratory Disease Complex (BRDC) as compared to controls.2 “Probiotics offer an alternative way to fight the battle against BRDC,” Dr. Barling says. “In many respects, the lower gut powers the day-to-day immunity and health of any animal.” Active dry yeast probiotics like S. c. boulardii CNCM I-1079 can be fed to cattle before or during a period of known stress. Then, it is typically fed after arrival while cattle are adjusting to their new surroundings. In addition, S. c. boulardii CNCM I-1079 can be fed in conjunction with vaccination and either feed grade or injectable antibiotic treatment programs. Instead of thinking about treating disease,think about improving an animal’s well-being so they’re better prepared to fight off health challenges. The losses are reduced on all fronts: losses from treatment expenses, costs from the additional labor required to pull and treat cattle, production declines and losses from mortality. source; drovers

HOW TO USE YEAST TO MAINTAIN RUMINAL HEALTH.

Wet weather can lead to low quality silage, in turn a potential cause of Sub Acute Ruminal Acidosis in dairy cows. Managing silage quality therefore is paramount. Good quality forage should always be the basis of any ration, and when quality and/or quantity of forage dry matter intake is reduced, then cows can struggle to perform.

Cows can also have a higher risk of Sub Acute Ruminal Acidosis (SARA), especially if the shortfall in forage energy intake is being met with higher levels of starchy cereals .

Studies have shown that SARA can be responsible for a loss in milk yield of up to 3 litres/cow/day. Paul Sloan, a nutritionist said "A ration done on a computer is no substitute for getting in among the cows."“It’s even more important to get the best out of the total ration and in particular producers need to make the best use of their silage.”

It is important to walk through the cows regularly and observe their behaviour at both feeding and resting times, as this can tell you a lot about how the ration is performing.

 Blends need to be correctly balanced with good levels of cereals to drive performance, and they should contain only quality raw materials with no filler type feeds.

Getting the right level of energy and starch is important, and maize meal is a key ingredient as it has lower starch degradability to help reduce acid loading in the rumen.

Good fiber sources such as soya hulls and sugar beet pulp should also be included to help balance the ration and maintain rumen health.

Sloan says, “Maintaining rumen health is the key and we have added live yeast to most of our rations this winter to help promote rumen function.

Live yeast improves fiber digestion and with the higher levels of fiber in this year’s silage the yeast is an important addition. The live yeast also helps reduce levels of lactic acid in the rumen, therefore helping to reduce the acid loading and maintain a healthier rumen environment.

 By taking this approach we have also seen significant reductions in laminitis-related feet problems.” Researchers Krause and Oetzel (2006) have shown that when frequent bouts of SARA occur, it can increase the risk of damage to the lining of the rumen wall.

 As pH drops, the normal balance of the rumen flora is disrupted and gram negative bacteria lyse, releasing endotoxins.


 As a result of the damaged rumen lining, bacteria and toxins from the rumen can then easily enter the blood stream which can lead to liver damage and an inflammatory response within the animal.

These toxins in the blood stream can also increase the risk of laminitis .Live yeast can help to reduce the risk of SARA occurring by helping to maintain the rumen pH at a higher level

.In addition to helping stabilize and raise rumen pH, live yeast will scavenge oxygen in the rumen, making the conditions more anaerobic, and certain nutrients are also produced by the yeast which helps to stimulate fiber digestion. story credit; all about feed.

YEAST AND ANIMAL NUTRITION.

. Yeasts vary greatly, not only in their unique genetic strains, but also in the way they are produced, cultured, used and the extent to which they can be beneficial.

Live yeast is increasingly used in animal nutrition. It is critical that newborn animals rapidly get colostrum after birth, to provide immunity as well as much-needed nutrients and to ensure a good start in life.


In addition to good farm practices and feed formulation, the addition of live yeast to the feed of the mother has positive short as well as long-term effects on suckling animals.

The feeding of young animals is fundamental to ensuring their growth and the development of their immune system and also has a significant impact on their future production. Attention must be given to nutrition of gestating and ­lactating females to ensure that the nutrition of the suckling animal is ­optimized.

 In fact, if immunoglobulin transfer from mother animals to their progeny is not sufficient during lactation, growing animals will become very sensitive to pathological issues such as intestinal bacteria inducing diarrhoea.

Colostrum (and milk) quality in terms of immune protection and nutritional value will also impact the growth rate of the young animals and then its future growth capacity.

 To ensure a good transfer of immunity, attention must paid to the immune system of the mother and the immune quality of the colostrum (immunoglobulin content) and on achieving a good intake of colostrum by the newborn (quantity ingested and early ingestion post-partum).

 A few weeks before ­giving birth, the immune system of gestating and lactating females has to be well stimulated to have a good synthesis of immunoglobulins, which will then be transferred to the mammary gland.

This immunoglobulin content in the colostrum can be very variable depending on different parameters including live yeast ­supplementation. One way to improve the immunoglobulin content in the colostrum and in the milk is the addition of the live yeast Actisaf (Saccharomyces cerevisiae Sc47) in the feed during gestation and lactation.


It has been proven that, following this approach, the immunoglobulin G (IgG) content is increased in the blood of the gestating female and is then transferred via the colostrum and milk to its progeny. In this way, the immunoglobulin content in the blood of suckling animals is significantly increased with a dose-depending effect.

Live yeast is a natural way to fight against these diarrhoea in newborn. animals.Achieving an optimal growth rate in newborn animals during the suckling period will increase weight at weaning, positively impacting the future growth of the animals.


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