The following is an excerpt from a post by Chief Innovation Officer Aidan Connolly on LinkedIn.

The way producers use and purchase antibiotics has begun to change, with further regulations from the Veterinary Feed Directive (VFD) going into effect Jan. 1, 2017. What restrictions are being put into place? How will they affect producers? What do you need to know to be prepared? Dr. Darrell Johnson, director of regulatory services at the University of Kentucky, shared all you need to know in the webinar “What does the VFD mean for me?” Here, we look at some of the highlights.

Antibiotic usage has traditionally had four purposes: treatment, control, prevention of illness and low-level feeding to promote feed efficiency. Moving forward, feeding antibiotics for feed efficiency will be eliminated completely, and only on-label use of antibiotics will be allowed. Antibiotics for the first three reasons listed above will be allowed, but only with a veterinary feed directive if in feed or a prescription if in water. Injectables are not affected at this time.

The Centers for Disease Control and Prevention found in a 2013 report that half of prescriptions given to humans are unnecessary. This misuse contributes to growing antimicrobial resistance as bacteria become resistant to drugs to which they are exposed. Though it is uncertain what role antibiotic use in livestock production plays in the overall problem, the FDA is already taking preventive action regarding antibiotic use in livestock, targeting drugs that are medically important to humans.

Veterinarians will begin to play an even more critical role than before in the feeding of antibiotics through feed or water, since the status of many antibiotics will be changed from over-the-counter to prescription or veterinary feed directive only. The goal is to keep veterinarians involved in decision making about the feeding of these drugs, even though a veterinarian is not required for their administration.

Antibiotics affected by the U.S. Veterinary Feed Directive 

Starting Jan. 1, 2017, the following antibiotics will require a prescription:

7 key takeaways

• As of Jan. 1, 2017, claims for production and feed efficiency on veterinary feed directive medications will be eliminated.
• Sales of these drugs will require a veterinary feed directive if going into feed and a prescription if going into water.
• Feed companies and distributors will have to register with the FDA if distributing veterinary feed directive feeds.
• Veterinarians must prescribe the veterinary feed directive and retain the original copy, and both client and distributor must maintain a copy for two years.
• Veterinarians must have a valid veterinarian-client-patient relationship to write a veterinary feed directive prescription.
• Veterinary feed directive prescriptions may be sent to distributors by veterinarians or by hard copy delivered by clients.
• Manufacturers of the drugs will assist vets and feed companies with the paperwork.

Because of these changes, it’s more important than ever to learn about options and opportunities to help maintain health and growth in livestock.  Bio-Mos® and Actigen® are unique feed supplements of the yeast Saccharomyces cerevisiae, which benefits dairy cattle by fundamentally maintaining gut health and stability. To learn more about non-antibiotic options, contact your local Alltech office.

Click here to view the webinar.

For more information, visit:

University of Kentucky Division of Regulatory Services: www.rs.uky.edu

Feedstuffs: http://feedstuffs.com/vfd.aspx          

FDA Website: http://www.fda.gov/AnimalVeterinary/DevelopmentApprovalProcess/ucm071807.htm   

Downloadable poster: http://www.rs.uky.edu/regulatory/feed/vfd/vfdnotice.pdf               

With temperatures exceeding 80⁰ Fahrenheit (F), cows can produce 4,500 to 6,000 British thermal units (BTU) per hour, an amount similar to the output of a 1,500-watt hair dryer. Heat can have serious manifestations in the dairy cow, resulting in effects such as (but not limited to):

• Lower production

• Rumen acidosis

• Milk fat depression  

• Poor reproduction

• Laminitis/lameness

• Weakened immune system

• Mastitis

• Transition disease (retained placenta, displaced abomasum, etc.)

• Lower body condition  score

It is only natural when cows are moved to a small space, such as the holding pen, that body temperatures rise. Research shows that a cow’s body temperature will increase by 3⁰ F in 20 minutes in a holding pen where there’s no cooling. By contrast, a cow’s body temperature will drop by 3.5⁰ F in that same 20 minutes when fans and a soaker system are used. Research by the University of Arizona showed that simply cooling cows in the holding pen increased milk production by 1.7 pounds per day in the summer.

There are can be adverse effects when developing a cooling system for holding pens if incorrectly applied. Water without fans will lead to increased humidity and heat stress in the holding pen, creating a “sauna” effect. Heat stress is a result of both temperature and humidity. The temperature-humidity index (THI) threshold for reproduction is 65,which is lower than the THI of 68 for milk production

Holding pen cooling tips:             

• Mount fans in rows, with airflow toward the back of the holding pen.
• Place 36-inch fans every 20 to 24 feet, or place 48-inch fans every 24 to 36 feet.
• Put 3 feet between fans (for example, between 36-inch fans mounted on 6-inch centers).
• Fan height should be a minimum of 8 feet, as low as possible but out of reach of cows and machinery.
• Mount fans higher if drop hose soakers like i-Wobs are used.
• For narrow holding pens (less than 24 feet) or pens with low ceilings, fans can be alongside the pen.
• Move air across and toward the back of the holding pen.
• Take advantage of prevailing winds.*

*Prevailing winds may be blocked by cattle, freestall dividers or headlocks. Wind speed is typically variable and is not dependable for adequate cooling of cattle.

Have a question or comment?

Many in the U.S. Midwest have had the luxury of increasing their forage inventory over the last couple of years, and this year continues to be on pace.

Dairy cows have the ability to transform fibrous plant materials and byproducts into high-quality milk, but the rumen microbes require available protein to perform these fiber digestion functions. Protein prices in the last month have continued to rise, and many dairy producers are now looking at ways to reduce their out-of-pocket costs and feed more of their housed forage, which typically represents 50 to 70 percent of the total mixed ration.

The rumen bacteria need ammonia-nitrogen

In order to keep the rumen bacteria working more efficiently, an effective source of ammonia-nitrogen (NH3-N) is needed to enhance fiber-digesting bacteria. Research has shown that the bacteria in the rumen primarily use NH3-N in the ruminal fluid, which is derived from a non-protein nitrogen (NPN) source in the feed.

Possible nitrogen sources in the dairy ration

Feed-grade urea is a common form of NPN used in dairy rations, but because of rapid ammonia release, it leads to nitrogen inefficiency and wasted energy in the dairy cow. Vegetable protein sources, such as soybean meal and canola meal, can also be a source of slow-release nitrogen, but these ingredients can have variability in nutrient composition and take up valuable space in the ration. Many producers are trying to find ways to make the ration more energy dense, especially during periods of heat stress, and feeding less bulky ingredients may help to achieve this goal. 

Optigen^® is a unique protein alternative that is 256 percent equivalent crude protein from NPN and provides a sustained release of NH3-N in the rumen. This slow release allows for better synchronization with microbial protein needs while dramatically increasing nitrogen efficiency in the dairy cow. The key is to synchronize the ruminal carbohydrate and crude protein degradability in the rumen to increase microbial protein production and energy derived from rumen microbes. A combination of effective protein sources available in the rumen and post-ruminally — matching essential amino acids in the small intestine — has the potential to increase the cow’s efficiency. 

How does Optigen work?

Many rations can implement up to 6 ounces of Optigen and allow for some removal of protein from vegetable protein sources, such as soybean meal. For example, 6 ounces of Optigen provides 0.9 pounds of protein, which will replace 1.9 pounds of soybean meal, with space for 1.5 pounds of dry matter of corn silage. This will create space in the ration, which will allow the dairy producer to utilize more forage in the ration and to lower out-of-pocket costs.

In a recent trial done at the University of Wisconsin (Journal of Dairy Science 02, Suppl. 1, 290), 16 commercial dairy farms in Wisconsin incorporated Optigen into the ration and removed soybean meal. The space that it created was filled with corn or corn silage. The results show a 1-pound milk production response. You can find the full article on this research here. 

For more information, visit our Dairy page or contact your local Alltech representative.

The following is a preview of Aidan Connolly's post, which you can find on LinkedIn. 

Question 1: Why are antibiotics in animal feed in the first place?

Antibiotics have been good for the world. They have been instrumental in allowing humanity to enjoy a standard and quality of life unimagined prior to their discovery. Initially, antibiotics allowed us to control life-altering and fatal diseases in humans.

Secondarily, they have facilitated the development of a modern, safe and efficient agricultural system that produces food economically, affordably and plentifully for most of the 7 billion people on the planet. 

When farmers began putting antibiotics in the feed of animals in the 1950s they did so initially because it resulted in lower mortalities but quickly they also noted their animals grew faster, requiring less feed. Veterinarians later observed better intestinal health and less inflammation during autopsies and surmised that the improved animal performance was most likely due to the more efficient absorption of nutrients in the intestine of those animals.

Question 2: Where does resistance come from?

The simple definition of resistance is “the ability of microbes to resist the effect of antibiotic drugs” and the mechanisms by which bacteria become resistant and pass on that resistance to other bacteria are relatively well known. Bacteria adapt very quickly to the environment, so when antibiotics are used continuously, the bacteria they are meant to kill can adapt, survive and replicate making it extremely difficult to kill the remaining bacteria. Resistance can develop through selective pressure (that is, when antibiotics kill some but not all of a bacterial group), mutation and gene transfer. These three mechanisms can also combine, as when bacteria not only become resistant to antibiotics, but also start to pass that characteristic on to other bacteria present in the gut. 

There are many sources of resistance with examples in humans and animals, including the inappropriate use of drugs or inadequate diagnostics in hospitals or veterinarian situations, the use of antimicrobial soap in bathrooms, the use of zinc oxide or copper sulfate in the diets of animals, and the use of chlorine in water of humans and animals alike. Scientists have demonstrated that these and any substances that create pressure on a microbial population lead to changes similar to the passage of resistance. 

Overall, humans are the main source of resistance, due to the misuse of antibiotics, not using them for the time period recommended by their doctors, or not using the recommended dose. Hospitals and homes for the elderly have become hot spots of resistance, which puts older people, very young people and immune-comprised people who are the least capable of fighting off infection without antibiotics at the highest risk.

It is clear that antibiotic use in humans is not uniform. For example, looking at a map of the U.S., antibiotic misuse per 1000 people tends to be concentrated in the eastern part of the country rather than the west, with over-prescription particularly prevalent in the South and Midwest. Recent studies indicate that an average of 506 antibiotic prescriptions are administered per 1000 doctor visits, while experts concluded that only slightly more than half of these prescriptions were actually necessary or appropriate.

In animals, resistance works the same way, and the passage of resistance from animals to humans can occur through contact with live animals or environmental contamination. (In 2005, the CDDEP found that when antibiotics are fed to animals 90% go through urine and 75% were found in feces; more recently antibiotic resistant bacteria have been found in water systems, waste treatment and in dust carried by air.) It also seems to be possible for resistance to be passed through the consumption of meat, milk and eggs from contaminated animals (for example, a U.S. study found that 53% of grocery chicken contained antibiotic resistant E. coli). 

Farmers are often irritated that activists focus on antibiotics in animal food, when the majority of resistance come from human misuse/overuse/abuse, but the general public finds it easy to agree with Prince Charles (speaking to the Royal Society in London) when he said, “I find it difficult to understand how we can continue to allow most of the antibiotics used in farming, many of which are also used in human medicine, to be administered to healthy animals.”

Read the rest of Aidan Connolly's post, including the next five questions and answers, here. 

Income over feed cost (IOFC) can be a critical metric when evaluating a farm’s profitability and the sustainability of a current or proposed feeding program. During times of low milk prices, understanding your costs can be crucial to a farm, effectively riding the wave to the next high or low in the milk price storm.

Understanding IOFC

IOFC is defined as the portion of income from milk sold that remains after paying for purchased and farm-raised feed used to produce the milk.  

Information you need to calculate IOFC:

1. Milk price average per month
2. Total milk produced per day over the period of a month
3. Number of cows as it relates to production during that month
4. Inputs (amount of feed used)
5. Cost per ton of feed input (to purchase or produce)

To illustrate with an example, we will use a 142-cow milking Holstein herd in Kentucky.

• Income
  • Milk price:  $15.50
  • Number of cows: 142
  • Average pounds produced per cow per day: 78 pounds
    • Income per cow per day: $15.50 * .78 = $12.09
• Feed costs:

IOFC = $12.09 (income) - $5.53 (feed costs) = $6.56 per cow per day

Feed to succeed

When evaluating your ration to maximize IOFC, there are potential changes that carry minimal to no cost but can have an impact on your bottom line.

1. Slow release non-protein nitrogen provides a concentrated source of ruminally-degradable protein. Due to the concentrated nature of the protein, a small amount provides the same nutrients as a larger amount of vegetable protein, allowing for reformulation potential to reduce feed costs. Optigen®, a product from Alltech, was utilized by Penn State in an example of IOFC calculation. You can read more here: http://www.dairyherd.com/news/industry/production-financials-cash-flow-mechanics.
2. Yeast: Feeding yeast has been widely researched and has shown to improve dry matter intake, stabilize rumen pH, maximize nutrient release and reduce overall feed costs.
3. Enzymes: Looking at the use of enzyme technology can be another avenue to maximize IOFC.  When feeding high-forage or high-corn diets, adding an enzyme that helps break down the key components in these diets, such as starch or plant fiber, can increase feed efficiency and improve milk production.

Using tools such as IOFC can lead to opportunities to gain a better understanding of your ration, to improve profitability of your herd and to understand your spending power when it comes to other on-farm purchases.  

Meet Neil Keane, manager of the 2016 European Dairy Career Development Program (DCDP). After successfully running the Beef Career Development Program in Europe in 2015, Neil will be in charge of recruiting, training and helping a new generation of graduates grow a successful career in Alltech. Neil is anxious to meet the new DCDP members and shared his impressions and expectations of the program.

Please tell us a little bit about your role in Alltech.

Originally from Ireland, I have a master’s of science in ruminant nutrition from the University College Dublin and a postgraduate diploma in business management from the University of Plymouth. Working in Alltech for more than 11 years now, I am responsible for our ruminant sales in Europe; developing and setting up trials for our new biogas project with Niall Brennan, a former DCDP member; and providing our European dairy customers with sustainable and profitable solutions.

As the Dairy Career Development Program manager, what are the most important skills you are looking for during the hiring process?

When screening candidates for the Dairy Career Development Program, a degree in animal science, dairy science or veterinary science is essential as the position requires a good technical knowledge of animal health and nutrition as well as the dairy industry. The key skills we look for are openness, curiosity, humility, flexibility and enthusiasm. As the program seeks to develop a sales role, it is important that candidates display good interpersonal skills. Being sociable and outgoing is essential, and it allows our graduates to build good relationships with customers. Alltech is a fast-paced environment, having the ability to adapt and work on various projects is vital.  

The Dairy Career Development Program is a year-long learning process, what do you expect from the members upon completion of the program?

Upon completion of the Dairy Career Development Program, Alltech hopes that all members will have grown in confidence in their daily activities. Our world-class training provides graduates with not only innovative solutions for modern dairy farming but it also provides them with an opportunity to develop new solutions based on their first-hand knowledge on the farm. Professionally, we expect them after this year to be able to bring value to the dairy producers they work with, to develop their own projects bringing innovation to their market and to have them take full ownership of these ideas.

How would you describe your relationship as a manager with members of the program?

Throughout the year, we ensure a supportive environment for DCDPers. Previous programs have taught us that we need to maintain frequent communication to assist the members if needed. We also try to set the best conditions and give members access to resources to facilitate them pursuing opportunities and developing their own projects. DCDP members receive support and mentorship from senior members of Alltech as well as industry leaders to help them succeed in their careers.

In your opinion, what is special about the Dairy Career Development Program?

In addition to the uniqueness of the program and opportunities to travel, the DCDP gives graduates a chance to work with senior leadership. The approach Alltech will be taking is not just to instruct and share knowledge, but to show the graduates the route of experiential learning. The hands-on programme allows graduates with a passion for dairy farming to develop solutions for emerging industry issues and make their stamp on the industry. We aim to develop the next generation of dairy nutritionists who are ready to support and develop the global industry. Ongoing challenges, such as weak import demands, excess supplies and the ever-changing climate, continue to shake the dairy industry. This investment by Alltech shows the significant importance of the global dairy industry to us and our belief in the importance of supporting future dairy industry leaders.

What advice would you give to applicants to the Dairy Career Development Program?

Alltech is seeking graduates who have a passion for dairy. It is essential to know and understand Alltech and its values. I would advise graduates to read our ACE principles. Throughout the selection process, we want candidates displaying honesty about their skills and personality and sharing about themselves openly.

Have a question or comment?

Our species is experiencing a technological inflection point, according to David Hunt, co-founder of Cainthus.

“Science fiction is becoming science fact,” he said.

In just the last few years, we have landed the rover Curiosity on Mars, discovered the Higgs boson particle and discovered gravitational waves. Hunt, a self-proclaimed science fiction fan, seemed especially impressed by the harpooning of a comet in 2015.

Technological advances on the farm

Hunt has worked for years on some amazing, but slightly more down-to-earth than comet capture, technologies. He and his twin brother co-founded Cainthus, a company dedicated to digitizing agriculture. He described some of the company’s projects in breakout discussions on dairy and the future of farming at ONE: The Alltech Ideas Conference.  

Facial recognition for cows

The audience got a glimpse into a few fascinating technologies, some of which are here now and others that are right around the corner. Digital cameras are at the core of many of these advancements. Cainthus has developed facial recognition software for dairy farms that can memorize the face of a cow in six seconds and monitor the activity of an entire herd without wearable tracking devices. They are creating algorithms that will allow their software to alert a farmer when cows show early signs of lameness or when they fight over the best feed. When cows fight, it typically disrupts the entire herd and interrupts them from feeding for up to two hours, which certainly has an impact on milk production.

Scouting fields with drones

Drones are being adopted at a rapid rate on the farm, and Hunt talked about both the potential and the limitations of their use. Self-flying drones are already very successful for monitoring crop growth. Hunt looks forward to a day when farms are photographed twice a day. He warned farmers not to accept any offers from companies offering to fly drones over their farm manually. The cost is prohibitive and would not allow frequent enough flyovers to be beneficial. Current drones are disruptive for use in animal agriculture and will not be fully effective until they are small enough to go unnoticed by animals or can fly high enough that they won’t be seen.

The future of agricultural robotics

Robots will have an enormous impact on agriculture in the next several years. Hunt showed a video of two dog-like robots walking side by side. One was large and clumsy looking, the 2010 model. The other was sleek and graceful and was released just four years later.

“Imagine what they will look like by 2050,” said Hunt.

The significance of robotics for agriculture is huge. Robotic harvesters could allow farming to return to polyculture, the practice of growing multiple crops side by side in the same field. Planting and harvesting with combines has allowed farmers to feed an ever-growing population by ramping up production, but it is dependent on monoculture planting. Polyculture is closer to the natural ecosystem, and proponents say that it results in better soil health and easier pest management.

Digitizing agricultural decisions

Digitizing agriculture will allow farmers to make decisions based on data rather than emotion or hype. Hunt stressed the importance of this, emphasizing the need to base decisions on what is happening on your own farm and not anecdotal evidence from another farm, even the one next door.

“Just because a product works incredibly well on your neighbor’s field doesn’t mean that it will work well on your field,” said Hunt. “If we have precision management observing what things work, what works, what does not work, on a meter-by-meter basis and a plant-by-plant basis, there is no emotion, there is no hype. There’s just good decisions and maximization of productivity.”

In closing, Hunt offered a challenge.

“We have an opportunity today to use the tools that are here to create a utopia by 2050,” said Hunt. “We also have the tools available today to have this planet being a desert by 2050. The choices we make today are going to determine which one we leave behind for our children.”

David Hunt was a presenter at ONE: The Alltech Ideas Conference. Audio recordings of most talks from ONE will be made available on the Alltech Idea Lab by mid-June 2016. For access, click on the button below.

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