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February 4, 2000

New drought warning
system to aid ranchers

Ranchers will soon be able to make cost-saving decisions months in advance of a drought thanks to a new warning system available on the Internet and through local advisories.

By using range site assessments and participation of ranchers across the state, range and weather conditions can be correlated to predict an upcoming pattern of dry weather up to six months in advance.

"The goal of the program is to put into place an early warning system for the livestock industry here in Texas and design that system where all producers can access the information in a timely manner," said Jerry Stuth, director of the Center for Natural Resource Information Technology with the Texas Agricultural Experiment Station. "Also, we want ranchers to have access to information in how to deal with and mediate some of the negative impacts of the drought."

The Texas Agricultural Experiment Station has provided $50,000 in research funds for the early warning system.

"It’s our hope we can develop a system well enough to let the Texas Legislature look at the technology and see it’s a worthwhile program to move it into a state-run effort and help ranchers all over Texas," Stuth said.

A similar system is being developed for crop farmers at the Blacklands Research Center in Temple.

Part of predicting a pattern of dry weather, Stuth said, is to analyze weather models and put that data into other models that can predict how forage is going to respond to rainfall. Fecal samples are also taken from animals that can allow researchers to predict future dietary protein and energy content requirements.

"You can place that into a software package, which in turn would allow us to predict their performance," Stuth said. "So, essentially what you are doing is coupling advanced weather technology, or modeling technology and animal monitoring technology to try and get a feel for direction and trends that animals and forages may be going in the state."

Through rancher participation, producers can pick up a fecal sample and send it to the test lab by two-day delivery mail.

"In 48 hours, we can tell them what the animal’s diet is on their property and how their animal is performing," Stuth said. "Any mediation they want to use such as supplemental feed, or destocking their pasture, we can quickly tell them."

Through satellite technology called Normalized Vegetation Difference Index, it is possible to pinpoint a rancher’s property and determine forage conditions. The technology allows researchers to address a producer’s particular needs, but also help producers in other areas that haven’t sent in fecal samples, Stuth said.

Testing will begin in 20 counties in the Frio River Basin, Middle Concho West and Wichita watersheds. The testing will involve the cooperation of at least one rancher in each county who will send a monthly feces sample to be analyzed in order to monitor the nutritional profile of his herd.

"The aim here is to provide landowners and livestock operators with information about not only weather conditions they can obviously see, but conditions of forage that have been created by weather to date," said Richard Conner, a rangeland economist with the Texas Agricultural Experiment Station and research team member. "We can integrate that with some probabilities of the chances of those conditions changing in the near future."

Conner said the system will allow ranchers to make timely financial decisions in advance of dry weather.

The research will begin once the test ranches are established, which is expected to begin this summer. The program will be put into place with actual data sometime next year.