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Fly Control for Livestock

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By: Mike Boersma, Extension Educator & 4-H Program Director, Murray & Pipestone Counties

I am sure you have noticed the abnormally high insect populations this summer. High populations of biting insects are not only a nuisance-and sometimes a health risk-for humans, they can also lead to reduced weight gain and feed efficiency and increased incidence of diseases like pinkeye in livestock.

There are a variety of fly control options available and the preferred method will vary from one producer to the next. The most effective method depends on livestock species, livestock numbers, facility design/pasture size, availability of working facilities, and a variety of other factors. Often, finding a combination of control measures that work well for your management system will be the most effective way to control flies.

Insecticide-impregnated eartags are a popular option for cattle producers looking for season-long control. While these eartags can work well, it is important that producers insert tags in early summer and remove them by early fall to help avoid insect resistance to the insecticide. Also, varying the brand of tag and insecticide used will help to reduce insect resistance.

Back rubbers and dust bags also work well but they must be placed in an area that the livestock will pass through on a regular basis. This could be an open gate, doorway, or some other structure that animals must pass through. Locations adjacent to feed, water, or other areas that livestock visit regularly are the most effective.

There is a long list of pour-on insecticides for producers to choose from as well and these can be very successful. However, their effectiveness on outdoor livestock can be short-term, especially during rainy periods.

Finally, many feed companies offer mineral supplements or lick tubs that can also aid in fly control. Many of these are designed to control fly larvae in manure but may not be effective against adult insects.

Any of these options, as well as many more, can be effective in certain situations and it is important for producers to evaluate the management system that will work best for them. Regardless of which option is chosen, producers should remember to wear gloves and other protective clothing when handling pesticides.

Also, some insecticides may have a withdrawal time for certain livestock. Finally, remember that variation among different control options and different insecticides will help minimize insect resistance and will lead to continued effectiveness in future years.

Creep Feeding Calves: When Does it Pay?

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By: Mike Boersma, Extension Educator & 4-H Program Director, Murray & Pipestone Counties

Creep feeding can be a good way to provide supplemental nutrients to calves in a time when their demands are growing rapidly. The process usually involves allowing calves access to feed or additional high quality forage with fences that exclude the rest of the cow herd. When done correctly, creep feeding provides an extra boost of nutrition for the calves without adding stress to the pasture or additional nutritional demands on the cows.

Creep feeding can be a controversial topic among beef producers, as some feel that the effects of creep feeding are not economical and can even be detrimental to the future of the calves, while other producers feel that creep-fed calves will be heavier, healthier, and transition better to the feedlot setting. Both of these views are correct in certain circumstances.

First, creep feeding isn't always economical. In years when feed prices are high relative to calf prices, it may not make sense to spend the extra money on feed if the returns are low. Also, if you have high-milking cows with enough available forage, it is not usually economical to creep feed because the added calf weight can be gained through healthy cows.

Therefore, creep feeding spring-born calves in May and early June will not have much benefit for the average producer, since forage is usually plentiful and cows should still have adequate milk production to raise their calves. Creep feeding becomes more advantageous for spring-born calves later in the summer when forage growth and milk production decline or in early summer for producers who calve in January and February since these calves are older and their mothers' milk production is declining.

Finally, it is not advisable to creep feed early-maturing, smaller framed calves, especially on a high energy diet. This will cause the calves to gain unwanted fat and will result in low performing cattle in a feedlot situation. This is especially true for heifer calves to be kept for replacement. There are many research studies that prove high fat levels on future replacement heifers at a young age could severely hinder their ability to become productive, functional cows in the future.

On the other hand, creep feeding is a definite advantage when feed prices are low relative to calf prices. Also, in dry years when pasture production is low or when cows are not producing much milk, it is a good idea to provide supplemental nutrition to the calves. This will not only benefit the calves, but also the cows since the calves will likely be eating creep feed instead of grazing on the limited grass the cows desperately need. The pasture will also benefit through reduced grazing pressure.

Calves out of young cows will also benefit from creep feed. These cows usually produce less milk and have a higher energy requirement themselves since they are still growing. Creep feeding these calves will also keep the young mothers in better condition which will help the cows to breed back sooner for the following year.

Finally, purebred cattle producers will likely experience more benefit from creep feeding. The added feed will increase weaning weights and overall bloom to the calves, which will generally bring a premium price when sold as young bulls or replacement females.

So, as you contemplate whether or not to creep feed your calves, keep in mind that there isn't always a simple answer. What is economical for your neighbor's herd may not benefit your own operation. Consider your goals and expectations before creep feeding and make sure the economics are in your favor. In order to spend the extra money on feed, there should be a plan to capture that value back when the calves are marketed.


Paul Sobocinski has a 240 acre diversified farming operation in Western Minnesota, near the town of Wabasso. He has a farrow to finish hog system that produces pigs for Niman Ranch, and a beef cow/calf herd using rotational grazing. Paul also raised corn, beans, alfalfa, grass hay, pasture, oats, wheat, and also has some land in the CRP program. In the 5th year of a CSP contract for rotational grazing, pasture watering system that includes wildlife escape, nitrogen management, resource conservation crop rotation, and cover crops to scavenge nitrogen.

After the hog market collapse of 1998, Paul remodeled an existing raised-crate farrowing barn into a deep-straw farrowing barn. In 2001, he modified an existing pole barn into a deep bedded sow and piglet nursery.

Paul had another older hog confinement facility that was originally slatted floors with liquid manure storage underneath the slats. With the help of a SARE grant and input from engineers, he remodeled the building into a friendlier, more enjoyable environment for both pigs and people. That process is described in this webinar. With the changes, Paul is now able to use the building to raise pigs for Niman Ranch Company. Paul sells pigs to Niman Ranch and is paid a premium for raising them without the use of antibiotics, and using straw bedding.

This presentation is about converting a nursery/ growing confinement building, with a pit, into a deep-bedded growing unit that meets Niman Ranch standards for improved animal welfare, while utilizing existing resources.Following is a link to the presentation: https://umconnect.umn.edu/r50553019/

Starting with Chickens

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By: Mike Boersma, County Extension Educator & 4-H Program Director with the University of Minnesota Extension in Murray and Pipestone Counties

Many farm stores, elevators, and similar businesses are beginning the spring-time tradition of offering chicks for sale. Raising chickens on a small scale is a fun experience for young and old alike. It is a great way to teach youth (and adults) about food production. Also, while not a lucrative business venture, raising chickens is a hobby that will give you something in return for the time and money you invest in it.

Whether raising chickens for eggs, meat, or both, selecting the right breed is one important step to ensuring success. When choosing broiler chicks (those raised for meat production), the most popular breed is a Cornish cross. These chickens are fast growing and will grow from hatch to market weight in as little as six to eight weeks. This breed is known for their carcass characteristics and rapid growth but they can suffer from joint problems if not managed properly.

As an alternative to the Cornish, the Red Ranger and similar breeds tend to grow a little slower but will produce leaner meat with more texture and flavor. These breeds also produce a higher percentage of dark meat. They can be expected to reach market weight in ten to twelve weeks.
When considering breeds of laying hens, there are many more options and varieties to choose from. White Leghorns may be the most popular breed for egg production. They produce between 250-300 white eggs per year. They are a smaller breed, weighing 4.5 pounds when mature. They are good foragers but are not a docile breed; they can be high-strung.

Many small-scale producers prefer more of a "dual-purpose" breed. The females make good layers while the males can be fed for meat production. There is a trade-off with the dual purpose breeds; they won't lay as many eggs as the Leghorns and won't grow as fast as the Cornish. However, their larger mature size helps them be more hardy, more tolerant of our cold winters and they are often more mild-mannered as well.

Popular dual purpose breeds include the Wyandotte, Rhode Island Red, Ameraucana, Plymouth Rock and the Orpington. There are a number of hybrids that would be considered dual purpose breeds as well. These chickens come in a variety of shapes and colors and are commonly 6 to 7 pounds when mature. The Orpington is the largest of these and hens will reach about 8 pounds. Many of these breeds lay brown eggs, however, the Ameraucana's eggs are green.

Whatever the goals, choosing a breed that suits your needs will help ensure a successful and rewarding venture. If you are considering raising poultry on a small scale but live within city limits, check with local ordinances since these can vary considerably from one town to the next.

Source: Wayne Martin, Extension Educator, Alternative Livestock Systems

The Small Farms U Program at the University of Minnesota Extension is offering a workshop on basic lambing management practices that will be held on Tuesday evening, April 15, 2014, from 5:30-9:00 p.m. The workshop will be held at the Beef Cattle Barn on the St Paul Campus. The Beef Cattle Barn is located on the corner of Buford and Gortner Avenues.

This workshop is designed for the person who has little experience raising sheep, or is thinking about starting a flock, or who already has a few sheep but feels that more management skills would be a worthy investment. It will be taught by Kyle Rozeboom, Livestock Specialist in the Animal Science Department, Wayne Martin, Alternative Livestock Systems Specialist with Extension, and Sarah Easter Strayer, Veternarian, UMN. Topics to be covered include, but are not limited to the following:


  • Ewe Care

  • Housing/facilities

  • Lamb Management Practices

  • Disease management/Vaccination program


Starts at 5:30 with registration and dinner that will include freshly roasted lamb, sliced for sandwiches, and other goodies to go with it. Pre-registration is strongly encouraged. Cost of the workshop is $20/adult, $30/couple or business partners, and $10/student. Please contact Wayne Martin at marti067@umn.edu , or (612) 625-6224.

Tips for Successful Lambing

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By: Mike Boersma, Extension Educator & 4-H Program Director, Murray & Pipestone Counties

Lambing season is quickly approaching for many sheep producers and this can be an exciting and challenging time of year. Adequate preparation is essential and will make lambing season more successful and less stressful. Here are a few points to keep in mind as lambing season approaches.

First, is the lambing barn ready? No two lambing barns will be identical and there is no "correct" set-up, since each operation will have slightly different needs and resources available. However, regardless of the type of facility, producers should make every effort to create a relatively warm environment free from cold air drafts on the animals. There is a fine line between creating a warm environment and creating a place with poor air exchange and high humidity. The lambing barn still needs to have a level of fresh air exchange-the key is to provide the fresh air without creating drafts directly on the animals.

Another consideration is to be sure the lambing pens are ready. Lambing pens should consist of a mostly enclosed area that provides about 25 square feet of space for the ewe and her lambs. These pens should be clean and free of manure and should have a heat lamp or other supplemental heat source in one corner for the newborn lambs. The ewes should be kept in these pens for 1-3 days, or until their lambs have nursed and are able to get up and going on their own.

Producers should also prepare themselves to deal with sick or weak lambs. Attentiveness is key here, as weak or chilled lambs can recover much sooner if caught early. The longer the lambs are cold and/or the longer they go without adequate colostrum (first milk) intake, the less likely they are to make a full recovery.

In an ideal situation, the lamb should nurse within the first hour after birth to receive the full benefits of the colostrum from the ewe. If the lamb is unable to nurse, it may be necessary to tube-feed the lamb, which can be done with a clean syringe and a small hose. However, tube-feeding should only be performed by skilled producers, since improperly inserting the tube could pose serious risks to the lamb. It is important that producers prepare ahead of time for weak lambs by having frozen colostrum and milk replacer on hand.

In addition to these simple practices, it is also important that sheep producers work with their veterinarian to develop a proper vaccination and lamb health program. Have the necessary vaccines and antibiotics on hand at lambing time, along with syringes and other equipment. If producers take the time to prepare these few things in advance, their foresight should be rewarded with a successful lambing season.

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Mike Boersma is a County Extension Educator & 4-H Program Director with the University of Minnesota Extension in Murray and Pipestone Counties

Managing Cold Stress in Cattle

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By: Mike Boersma, Extension Educator & 4-H Program Director, Murray & Pipestone Counties

The recent snow and cold temperatures bring with them a host of challenges and special considerations for those with livestock. For cattle producers whose livestock are predominantly outdoors, one of those extra considerations is that animals' energy needs will increase as the temperature decreases. Wind, snow, and cold temperatures have additive effects on the increase in energy requirements for the animals to simply maintain their normal body functions.

As a general guideline, cattle will experience a 1% increase in their energy requirement for every 1 degree of wind chill below 32 degrees F. In other words, if the wind chill is 10 degrees, a cow's energy requirement would increase by 22% (32 minus 10). This increase nearly doubles if the animal is wet.

To take the concept one step further, the Lower Critical Temperature (LCT) of an animal is the lowest temperature that animal can experience before their body needs to burn more energy to stay warm. For a cow with a winter coat, the LCT is approximately 32 degrees. However, that same cow with a wet hair coat will have a LCT of 60 degrees.

Therefore, it is important for producers to take the necessary steps to protect their livestock from adverse weather conditions. While it usually isn't possible to keep them out of the cold, there are many ways livestock owners can protect animals from wind and falling snow. This can be done by providing shelter or windbreaks for the animals. When providing shelter to cattle, make sure that there is still adequate air exchange so that humidity and moisture do not accumulate as these can actually compound the problem by making the animals wet and increasing their Lower Critical Temperature.

At the same time, producers can take steps to increase the animals' energy intake during adverse weather conditions. While the surest way to increase energy is to add grain to the diet, this could cause digestive upsets in animals on a high roughage diet. A more subtle and practical approach for these animals is to save the best quality hay for bad weather and perhaps feed this hay for a couple days after the storm has passed to make up for any weight lost. Remember that any dietary changes must be gradual to avoid digestive upsets.

With the bitterly cold wind chills of the past few weeks, simply supplying enough dietary energy for the animals to maintain normal body function, without needing to burn stored fat, can be a real challenge. Taking steps to reduce the effects of the cold while increasing energy intake should help cattle overcome these environmental stresses of winter.

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Mike Boersma is a County Extension Educator & 4-H Program Director with the University of Minnesota Extension in Murray and Pipestone Counties

Bale Grazing Reduces Inputs

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By: Mike Boersma, University of Minnesota Extension Educator & 4-H Program Director, Pipestone & Murray Counties

For beef cow/calf producers, minimizing the use of harvested feeds is a great way to reduce input costs. Doing so will translate to reduced costs of harvesting and transporting forages as well as reduced manure hauling and labor. However, in order to reduce the amount of harvested forages being fed, producers need to find ways to extend the grazing season. This can be a challenge in the Upper Midwest where the end of the grazing season is often dictated by the first significant snowfall.

What if a system existed that would provide a "happy medium"-where forages could be harvested and protected from the effects of snowfall, yet, could be fed in a way that didn't require starting a tractor daily throughout the winter and could also require very minimal manure hauling from the winter feeding area? The idea of bale grazing accomplishes exactly this.
In basic terms, bale grazing involves bales in a field or pasture at the beginning of the winter feeding season. Using a portable electric fence wire, cows are given access to a small number of bales at a time and the fence is moved periodically to allow access to new bales as needed. This system allows feeding to take place in the field or pasture, rather than in a yard or drylot situation. Feeding the cows in the field presents an opportunity for saving time and fuel generally used during daily feeding and manure hauling.

To maximize cost savings, bales can be left in the field right where they were originally harvested. If that isn't an option, however, bales can be hauled to a new field or winter pasture and placed in a grid pattern. In either case, an electric wire is used to grant access to new bales periodically.

The system works best when cows can only access a few days' worth of feed at a time. This will force the cows to eat more of each bale and reduce waste. For producers concerned with needing to move fence posts in frozen ground, try a cordless drill to create pilot holes for small fence posts.

The concept of bale grazing may not fit for all operations. But, if the system sounds feasible on your own farm as a means of reducing fuel and labor costs, I'd encourage you to give it a try.

Be Safe this Fall!

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By: Nathan Winter, University of Minnesota Extension Educator, McLeod & Meeker Counties

Recently, there have been a number of local injuries and fatalities in the agricultural sector. These injuries and losses are unfortunate and are difficult on all family and friends involved. Be sure that you and your family practice farm safety to ensure everyone's safety!

Although farm accidents have lessened in recent years, it is still a common occurrence for farm accidents to take place for farmers and farm workers. Agriculture ranks amongst the most hazardous industries according to the National Institute for Occupational Safety and Health (NIOSH). Approximately 476 farmers and farm workers died from work-related injury in 2010 and 9,955 from 1992-2010. The leading cause of death for farmers and farm workers from 1992-2009 was tractor overturns. Approximately 243 agricultural workers suffer lost work-time injury every day.

According to NIOSH, an average of 113 youth less than 20 years of age die annually from farm-related injuries (1995-2002) The majority of those that die annually are youth between 16-19 years. The most common source of fatal injuries to youth is machinery (includes tractors), motor vehicles (includes ATVs), followed by drowning. There were 16,100 children and adolescents injured on farms and 3,400 due to farm work in 2009.

Sadly, most of these farm related accidents could have been prevented if appropriate safety measures would have been taken. Often, nature does not leave a big enough time period to get the work done so farmers and farm workers feel the need to hurry. Be sure to slow down and think about the safest ways to go about your work. Be sure that all safety equipment is working properly and that you follow safety procedures during operation.

Those at risk working on the farm range from young children to senior farmers. Nobody is left out and considered safe when working on farms. Quite often youth work at a very young age with very little supervision. These youth can also be innocent bystanders or passengers on farm equipment. Be sure to look out for their interests by keeping them safe. Youth should be given appropriate tasks that they are able to perform safely. Always think of how to safely operate the machines and equipment you are running before you start and be sure to show and tell the youth as well.

Those not engaged in agricultural activities also need to be safe on our rural roadways. Be sure that you are safely operating vehicles on these roadways to avoid collisions with farm equipment or other vehicles.

Good luck with the fall harvest and please remember to take things slowly and exercise safety in your daily work!

Pricing Corn Silage

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By: Jerrold Tesmer, Extension Educator, Fillmore & Houston Counties

Due to the late planting dates and a cooler than normal growing season this year, many corn fields will probably be harvested for silage. There is potential for corn in these fields to be too immature for proper corn silage harvest. How should the value of corn silage be adjusted for immature corn? Typical calculation methods for pricing normal corn silage include:

Relative feed value of known forage market.
Silage ($/T) = ¼ to ½ value of hay
Silage ($/T = 8 times the price of a bushel of corn. If already harvested, then 10 times.
Feed replacement or substitution costs
Use market prices for energy, protein, and digestibility (NE of corn, soybean meal, hay)
Contracted price above the cost of production (280 - 320 $/A).

If the corn is immature a quality adjustment factor for maturity might be necessary. Some University of Wisconsin work suggests: Pre-tassel = 90%; Silk = 80%; Soft dough = 85%; Early dent = 90%; ½ kernel milk line = 100%; and Black layer = 90%

Two "quick and dirty" ways to estimate corn silage yield are:

Based on Grain Yield...for stressed corn, about one ton of silage per acre can be obtained from each 5 bushels of grain per acre. For example, if you expect a grain yield of 50 bushels grain per acre, you will get about 10 ton/acre of 30 percent dry matter silage. For corn yielding more than 100 bushels per acre, about one ton of silage per acre can be expected for each 7 to 8 bushels per acre.

Based on Plant Height...if little or no grain is expected, a rough pre-harvest estimate of yield can be made by assuming that one ton of 30 percent dry matter silage can be obtained for each foot of plant height (excluding the tassel. On this basis, "waist-high" corn 3-4 feet tall will yield about 3 to 4 tons per acre of silage at 30 percent dry matter.
Sample Weight Method...A more accurate way to estimate yields is to weigh the corn plants from a portion of an acre (1/100th) in several spots of the field. To do this, determine row width, then cut corn plants in one row for a certain length according to row width in the following table:

Row Length Row Width
32.50 ft. 30"
28.75 ft. 36"
27.50 ft. 38"
26.25 ft. 40"

Next, weigh the amount of whole corn plant material cut in pounds. Divide the pounds harvested by 4. That's the estimated tons produced per acre. Follow this method for several areas and average the results.

In order to obtain actual tons harvested, weigh each wagon load or count how many feet of silage went into a silo after settling. If you know the silo size, how many feet of silage was put up and what the moisture was, silo charts can be used to calculate tons stored. Dividing stored tons by acres harvested will give you the yield per acre.

The information above was obtained from work done by University of Wisconsin Corn Agronomist Joe Lauer, and UW-Extension Agriculture Agent Greg Blonde.

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