Age Determination in Cattle

Determining the age of a cow can be an important factor in making decisions related to buying, culling, breeding, retaining, etc. Practices such as branding or tagging with ages are a good measure and can add value especially when selling bred cows. Unfortunately, many producers cannot or do not take the time for such practices (often times they may not be practical). Examination of the teeth can however provide an approximate age of a cow. This method evaluates the appearance of temporary and permanent teeth and the degree of wear. At maturity cattle have 32 teeth of which 8 are the incisors in the lower jaw which are typically evaluated. There are no upper incisors only a thick dental pad. Depending upon range and pasture conditions the degree of wear can vary. Cattle on sandy, rangeland type country typically wear quicker than cattle on higher clay content soil with improved pasture. Because this method is approximate it is important to note that it may not ascertain a cow’s biological age but rather gauge her youthfulness in terms of grazing ability. A second method to determine age would include looking at the brucellosis tattoo in the right ear. This would indicate the year the cow was a weaned calf. The first digit represents the quarter of the year it was tagged, the middle digits are a shield and the last number is the year vaccinated. A good resource and aging table can be accessed at http://www.avc-beef.org/AgingCattle-Griffin/AgingCattle-CL712.pdf.

Average Home Could Collect 25,568 Gallons of Rainwater Annually

Have you ever wondered how much water comes off of your roof in a major rainfall event? What about over the course of a year? Let’s assume the average home in Navarro County is 1200 square feet and that the average rainfall is 38 inches annually. For every square foot (horizontal square foot not roof area) we collect 0.623 gallons per 1 inch of rain. So the average home would collect 747.6 gallons per 1 inch of rainfall. If we figure 38 inches annually and a 90% collection efficiency, then the average home could collect 25,568 gallons per year! That water could go to a variety of uses. As the state of Texas faces increased population growth and demand on water resources, rainwater may be making a comeback. Want to know more?

A Rainwater Harvesting Workshop is scheduled for Thursday, May 6 from 5:30pm to 8:30 pm at the Sumner Family Property, north of Blooming Grove, TX. Highlighting the event will be Dr. Dotty Woodson, Extension Specialist for Water Resources who will present on the basics of rainwater harvesting and guide us in putting together rainwater barrels. A limited number of rain barrels will be available for purchase on a first come, first serve basis. Also, as part of the program we will view a 3,000 gallon rainwater collection demonstration as well as a unique project that is funneling rainwater to a surface tank. Directions: Take Highway 22 to Blooming Grove, TX. On the east side of town, turn north onto Pecan Street (this turns into NWCR 1420). Go 1.2 miles and turn left into the drive, look for signs. RSVP by April 28th at 903-654-3075