Taking Stock And Moving Forward

By Dr. John B. Hall Extension Beef Cattle Specialist, VA Tech. First published in the OSU Extension Beef Team Newsletter, Issue #550. August is usually a hot but fairly easy time in the cow calf operation. However, this year the dark clouds on the horizon don't appear to have much rain in them.
calendar icon 25 September 2007
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The drought continues to expand and worsen in most parts of Virginia and the Mid-Atlantic. This August is a good time to take stock of your resources and cattle. Then use this information to make management decisions.

Taking Stock - Feed inventory is the first item that needs to be addressed. Most pastures are in poor shape and first cutting hay supplies are short. Prospects for an above average second cutting are not looking real good. Here are some taking stock items to consider:

  • Estimate current total hay supplies - not just bales but tons of hay. Don't overestimate bale weight
  • Take forage samples of hay and analyze them for quality
  • Make a realistic estimate of second cutting hay yield prospects
  • Find out current availability and price of by-product feeds in your area
  • Consider temporary fence and water options
  • Inventory the cow herd - on paper divide cattle into the following groups
  • Developing replacement heifers
  • Pregnant heifers
  • Young cows
  • Mature cows
  • Old cows
  • Bulls

Estimate the total feed needs from now until April 2008. Each cow or bull will need at least 30 to 35 lbs of hay or equivalent in pasture per day. Pregnant heifers and developing heifers will need 20 to 30 lbs of hay or equivalent per day. Feeder calves will need 12 to 15 lbs. per day. These numbers include some wastage of feed, but operations with excessive feed wastage will require more lbs per animal. Then compare the feed needed to current feed available.

Here's an example:

From August 1, 2007 to April 20, 2008 is 263 days. Cattle inventory and feed (dry matter) needs for a 60 cow spring calving herd are shown in table 1. Total tons of feed needed is 346.9 tons. Current feed inventory includes 120 round bales averaging 1100 lbs, 160 acres of pasture, and 45 acres of hayland. Each acre of grass contains 200 to 300 lbs of hay equivalent per inch of grass above 3 inches. Utilization rate of rotated pasture is 50%. In other words, cattle can only eat about half of the grass available. The rest of the grass is trampled or soiled by urine and feces. Grass is currently growing at about 3 to 4 inches per month.

Table 1. Cattle inventory and feed requirements until April 2008.
  No. Head Lbs. Dry Matter (Hay equivalent) needed/head/day Total Lbs. Dry Matter (Hay equivalent) needed/group until 4-20 (or sold) Tons needed
Cows 60 32 504,960 252.5
Bulls 2 35 18,410 9.2
Pregnant heifers 10 28 73,640 36.8
Replacement Heifers 12 20 63,120 31.6
Feeder calves to be sold in October 45 10 33,750 16.9
Total 129   693,880 346.9


An estimated feed inventory is shown in Table 2. This inventory assumes pasture will continue to grow at 4 inches per month through October and utilization is 50%. Second cutting hay will be harvested in September. Current feed inventory is in essence all the forage available until mid-April 2008.

Table 2. Estimated current feed inventory
Resource Unit Lbs. per unit available Total pounds available Tons available
Hay 120 bales 1100 132,000 66.0
Pasture 160 Acres 1600 256,000 128.0
Hayland 45 Acres 1400 63,000 31.5
Total 325   451,000 225.5


Comparing the dry matter needs to current availability, it is easy to see there is a short fall of over 120 tons. If we had to purchase this forage at $80/ton, then we would be spending an extra $9,600 or almost another $115 per animal to make it until next spring. Of course, this is a worst case scenario with little expectation of improved moisture this fall. Still we need to consider our options for making it through the winter.

Moving forward - Reduce cattle inventory. One option is to sell all animals that do not have the potential to produce a quality calf to sell next fall. In addition, this includes animals that can relatively easily be replaced. Animals that fall into this category are open cows, old cows, weaned replacement heifers, and bulls. If we take this drastic step, the forage shortfall is cut to one third to 40 tons (compare Table 2 and 3). However, we still will have the same number of calves to sell next fall. Decisions on buying replacement bulls and pregnant replacement heifers can be deferred to next spring when pasture and feed availability may be improved.

Table 3. Feed needs for reduced cattle inventory.
  No. Head Lbs. Dry Matter (Hay equivalent) needed/head/day Total Lbs. Dry Matter (Hay equivalent) needed/group until 4-20 (or sold) Tons needed
Cows 50 32 420,800 210.4
Bulls 0 35 0 0.0
Pregnant heifers 10 28 73,640 36.8
Replacement Heifers 0 20 0 0.0
Feeder calves to be sold in October 45 10 33,750 16.9
Total 105   528,190 264.1


Stockpile forage. Another possibility is to graze hay fields instead of making second cutting hay, and stockpile 45 acres of pasture. To stockpile during this dry weather 40 units of N is recommended. Utilization of stockpiled fields is higher than pasture at about 70%. This reduces our feed shortfall to 30 tons (Table 4). This would mean purchasing an additional $2,400 of hay (or about $2,000 worth of corn gluten feed) plus 1800 units of N.

Table 4. Impact on grazing hay fields and stockpiling on forage availability.
Resource Unit Lbs. per unit available Total pounds available Tons available
Hay 120 bales 1100 132,000 66.0
Pasture 115 acres 1600 184,000 92.0
Hayland 45 acres 1400 63,000 31.5
Stockpiled grass 45 acres 2000 90,000 45.0
Total 325   469,000 234.5


What about rain. If we get a good fall combined with reducing cow numbers and stockpiling, then things look pretty good (Table 5). In fact, we end up with a surplus of about 20 tons of forage. This may allow the operation to keep one of the bulls and still have hay to sell next spring. By next spring, hay may be a very profitable commodity.

Table 5. Effect of adequate fall rain, grazing hay fields, and stockpiling on forage availability.
Resource Unit Lbs. per unit available Total pounds available Tons available
Hay 120 1100 132,000 66.0
Pasture 115 2000 230,000 115.0
Hayland 45 1600 72,000 36.0
Stockpiled grass 45 3000 135,000 67.5
Total 325 7700 569,000 284.5

The bottom line - The examples above only consider the dry matter intake of the animal as met by hay and pasture. In addition, these examples assume that forage quality is adequate to meet animal needs. Producers should be very careful to obtain forage analyses and work with their Extension agent or nutritionist to make sure hays meet the needs of the animal. It will not be uncommon for energy supplements to be needed in addition to hay, especially for pregnant heifers and replacement heifers.

To continue to be a viable and perhaps profitable operation, producers will need to consider a combination of strategies to make it through the drought. The first and most important consideration is to make a realistic inventory of feed resources and cattle needs. Then producers should employ a combination of:

  • Cattle inventory reduction
  • Alternative grazing and forage practices
  • Feeding of alternative feeds
Producers should try to consider all the options, and should not be afraid to seek assistance from Farm Management Extension Agents or other Agricultural Extension agents. Remember prayer never hurts either.

August 2007

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