15 tips on keeping cows healthy in drought | Living the Country Life
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15 tips on keeping cows healthy in drought

Market cull cows and supplement feed to rest
Without proper nutrition and pasture management in a drought year, beef herd performance can suffer for years to come. (Purdue Animal Science photo/Ron Lemenager)

In a drought year, forages are low in both quality and quantity, which can leave cows thin and undernourished. Less-than-optimal body conditions can have reproductive consequences not only this year, but next year as well. Heat stress coupled with poor nutrition can create a double whammy by lowering oocyte and sperm quality, as well as embryo survival, says Ron Lemenager, Purdue Extension beef specialist.

Lemenager says producers need to pregnancy-check cows to minimize the use of expensive feeds. When forages are in short supply, there is little reason for producers to feed non-productive animals. Instead, they can consider marketing culled cows earlier than normal to take advantage of higher market prices. "If cows are thin going into the fall, fewer will be bred, calves will be lighter at weaning time this year and fewer calves will be born next year," Lemenager said. "Then, if cows are thin heading into next breeding season, fewer cows will be bred and colostrum quality will be lower, meaning a lower calf survival rate which affects productivity in years two and three." To avoid the three-year "tail," he said producers might need to pay the price now to supplement feed and make sure cows are healthy and in moderate body condition. Healthy cows will breed better and can shorten the time producers face fallout from the drought.

In addition to monitoring body condition, Lemenager and Purdue Extension forage specialist Keith Johnson provide these steps you can take to manage drought and heat stress:

1. Avoid overgrazing and employ rotational grazing.

2. Creep-feed calves to create near normal weaning weights.

3. Early-wean calves to take pressure off of both cows and pastures.

4. Identify and manage poisonous plants in pastures and hay fields.

5. Establish summer annuals to increase late-season forage production.

6. Pregnancy-check and market cull cows earlier than normal to reduce feed needs.

7. Inventory hay and other feed resources.

8, Analyze feeds for nutrient profiles to help determine supplemental feed needs.

9. Use alternative feeds to supplement and stretch forage supplies.

10. Limit hay access time to stretch forage supplies.

11. Limit-feed a high-concentrate diet to stretch forage supplies.

12. Graze crop residues and stockpiled forages to reduce harvested feed needs.

13. Use drought-stressed corn for grazing, green chop or silage.

14. Make sure cattle have access to a clean, cool water supply.

15. Moisten the soil around ground rods of electric fences.

More detailed information about each of these steps, including sample diet formulations, can be found in Lemenager and Johnson's publication, "Beef Management Practices for Coping With a Short Forage Supply" on the Purdue Animal Sciences Beef Center website
. Click on "Dealing with Drought" on in the left column. Click here for other Purdue Extension drought-related resources.

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