Angus Advisor
March herd management tips from cattle experts across the nation.
Southeastern Region
General recommendations
Nutritional management. Maintain at least a 4-in. average stubble height on winter annual pastures to avoid overgrazing. Temporary, portable electric fencing is an excellent tool for implementing rotational-, limit-, strip- or creep-grazing systems.
Fertilize cool-season grasses according to soil tests if not done earlier. Plan to incorporate legumes such as white clover into forage systems to reduce nitrogen fertilizer needs and improve forage quality. Locate hybrid Bermuda grass sprig supplies for planting starting next month. Spray little barley, buttercup and other winter annual weeds while still vegetative for better control.
Watch for grass tetany, particularly on lactating cows grazing lush pastures such as tall fescue or annual ryegrass. Feed a high-magnesium mineral supplement to cows and heifers on these pastures. Provide proper mineral supplementation and fresh water at all times. Make plans to service forage-harvesting equipment well before hay season.
Health management. Plan summer fly control before the fly population builds in the warmer months ahead. Consider options for anaplasmosis control in the coming months, and develop a complete herd health program in consultation with a veterinarian. BQA-consistent practices should be included in the health program.
Secure a premises ID number for your ranch from your state veterinarian's office if you have not already done so. Work to develop a ranch-level disease and disaster plan. Your local Extension agent and veterinarian can assist in these planning efforts.
Marketing and financial management. Consider marketing cull cows in good condition. Cull cow markets are typically favorable in the next few months compared to the rest of the year. Small-scale producers, in particular, may benefit from forming alliances with neighbors for group cattle marketing and bulk input purchase endeavors.
Continue good production and financial recordkeeping. Enterprise budgeting and cash flow analyses are worthwhile exercises. Finish tax returns this month to avoid last-minute preparation stress.
Spring-calving herds
Calving and breeding management. Calving season is well under way. Calving supplies should be readily available. Dip navels, identify, weigh, castrate and implant calves at birth as appropriate. Include calving-ease scores and dam body condition at calving in calving records.
Acquire quality herd sires with performance information from reputable sources. Obtain detailed information on bull genetics, health program and customer service offerings on prospective herd sires. Take time to study this information for making informed selection decisions.
Conduct breeding soundness exams (sometimes referred to as BSEs), and make sure bulls are in good condition in advance of spring breeding. Provide additional nutrients to bulls if needed.
For AI programs, have ample semen and other needed supplies on hand and facilities in shape for breeding. Vaccinate all open cows and heifers for vibriosis, leptospirosis and IBR at least 30 days before breeding. Consult with a veterinarian for BVD recommendations for the local area. Start breeding heifers about a month before the cow herd.
Nutritional management. Place cattle with the highest nutritional needs (growing cattle, lactating first-calf heifers and cows) on the highest-quality grazing and hay. Supplement the cow herd as needed according to forage test results. Cows need to be in moderate to good condition to rebreed early.
Fall-calving herds
Breeding management. Remove bulls 283 days prior to the end of the desired calving season (early March to end the calving season in mid-December, and mid-March to end the calving season in late December). Keep bulls in small pasture traps with effective fences, and manage bulls to start the next breeding season in good condition. Observe the cow herd for returns to standing heat. Schedule pregnancy checks for 45 to 60 days after the end of the breeding season or earlier if using ultrasound technology.
Calf management. For calves born in an early fall season, consider whether or not early weaning in late March or April fits operational goals. Fenceline weaning is a good option for reducing calf stress at weaning. Early-weaned calves should be placed on a high plane of nutrition, while their dams can be placed on lower-quality forages and feeds.
Feeder-calf markets are often seasonally high in March and April, so consider optimum marketing times and methods for fall-born calves. Calf verification programs may be an attractive option for feeder-calf marketing. Breeders should share information on breed association-sponsored feeder-calf marketing programs with bull customers to help in marketing their calves. Run a breakeven analysis on retained ownership options, including stocker and finishing programs, and consider risk management strategies before finalizing marketing plans.
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Midwest Region
Manage calving pens and pastures to minimize human, cow and calf stress. Stay organized.
• An observation schedule should be implemented for calving first-calf heifers and cows. First-calf heifers should be checked every two to three hours.
• Sanitation is key to reduce and/or eliminate calf scours. An excellent calving pasture management plan by David Smith from the University of Nebraska-Lincoln can be found at http://beef.unl.edu/beefreports/symp-2003-19-XVIII.pdf.
• Make sure every calf consumes adequate colostrum during the first 8 hours after birth.
• Keep accurate calving records, including cow ID, calf ID, birth date, calving difficulty score and birth weight. Other traits to consider recording are teat and udder scores, calf vigor score and other pertinent information. This information, along with Angus sire information, is vital for enrolling cattle in the AngusSource® program. (See your regional manager for details.)
• Calving books are essential sources of information; make sure you have a backup copy.
• Condition score cows. Thin and young cows will need extra energy to maintain yearly calving intervals.
• If cow diets are going to be shifted from low-quality forage (poor-quality forage or dormant grass) to high-quality forage (lush green grass), begin a grass tetany prevention program at least three weeks prior to the forage switch.
• When making genetic selections, use the most recent National Cattle Evaluation (NCE) and herd records judiciously.
• If new bulls are purchased, now is the time to start preparing them for their first breeding season. Bulls need to be properly vaccinated, semen-tested and conditioned to be athletic. A bull having moderate body condition with abundant exercise is ideal.
• After calving and before breeding, vaccinate cows as recommended by your veterinarian.
• Plan to attend beef production meetings.
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Southern Great Plains
Fall-calving herds
Cool-season annual and perennial forages should be growing rapidly. These high-quality forage resources can be used as a supplement to low-quality standing forage or hay. One very effective limit-grazing strategy is to use four-hour grazing bouts at two- to four-day intervals, depending on stage of production, condition and age of the cows, and quality of the dry forage base. Another common method is to graze cows on the cool-season pasture for two days, followed by three to five days of grazing low-quality forage or hay.
In many native range situations, warmer temperatures encourage the emergence of cool-season annual grasses. Although these grasses typically do not make up a high percentage of the available forage, the grazed forage protein content should be higher compared to January and February. To take advantage of this situation, producers may choose to switch from a high-protein supplement (30%-40% protein) to a moderate-protein supplement (20%-25% protein). Hay feeding may be advised if standing forage is becoming limiting. Since the breeding season has ended, a modest loss of weight and condition is acceptable for 4- to 8-year-old cows.
Vaccinate heifer calves between 4 and 10 months of age for brucellosis.
Spring-calving herds
Limit-grazing cool-season pasture is equally as effective for spring-calving cows, although more difficult to manage with baby calves.
March and early April are frequently the times of year when spring-calving cows lose the most weight. Some producers avoid rapid weight loss by feeding high-quality hay during this short period, while others reduce the protein concentration in the supplement and increase the feeding rate.
If AI is to be used, plan the synchronization system and purchase the necessary supplies and products. Some systems require implementation of the synchronization plan as early as 35 days prior to the initial breeding date. Many universities publish fact sheets that describe various synchronization systems.
Breeding soundness exams should be performed on herd bulls, preferably before spring bull sales. Since bulls will be restrained during this procedure, this is an opportune time to perform other maintenance steps, such as vaccinating, trimming feet, tagging or retagging, cutting hair away from ear tags, etc.
After calving and before breeding (30 days before, preferably), vaccinate cows according to your local veterinarian's recommendations.
Early March is a good time to check weights on replacement heifers to determine if an adjustment in their nutritional program is necessary. The traditional recommendation is to target 65% of expected mature body weight by the beginning of the breeding season (812 lb. if mature weight is 1,250 lb.).
General recommendations
Sample soil from established Bermuda grass, Old World bluestem and love grass pastures to determine fertilizer needs. Cool-season perennial forages can still be fertilized in early March, if not already done.
Remove old growth from weeping love grass and Old World bluestem by grazing, clipping or burning.
Hay feeding areas in improved pastures should be burned, raked, lightly tilled if necessary, and reseeded with grasses and legumes. With a little early spring maintenance, these damaged areas can recover rapidly.
If not already completed, plant or broadcast spring-seeded legumes, such as lespedeza, sweet clover, red clover and white clover. Remember to inoculate legume seeds before planting. Inoculation is an inconvenient and often-overlooked step that pays huge dividends.
Use prescribed fire to improve forage quality, reduce ticks and control brush.
Magnesium-fortified mineral supplements should be supplied to cows grazing cool-season annual or cool-season perennial forages.
