“Identification markings need to be permanent and easy to read,” says Davis. Furthermore, Davis suggests permanent calf identification markings of ear tattooing or branding in combination with ear tagging. The new electronic identification tags are helpful in tracking and collection of data in a total electronic format. No matter what form of identification is used, Davis suggests identifying the animal as soon as possible after birth to aid in proper operation recordkeeping.
“The goal of the recordkeeping system is evaluating entire herd productivity and pinpointing success as well as problems within the operation,” says Davis. Cow-calf producers should use a system that accurately collects data to evaluate the breeding and calving season as well as weaning.
“Breeding season data is helpful in determining reproductive efficiency of the cattle operation,” he says. Cattle producers should record the number of bred cows and heifers and compare that to the total number of cows and heifers that were exposed during the breeding season. This determines pregnancy percentage, which evaluates reproductive efficiency of the cattle operation. In addition, Davis suggests identifying and culling any open cows and heifers so that resources can be dedicated to productive cows and heifers in the operation.
“After calving, determine calving percentage by comparing number of cows with live calves to the number of cows and heifers that were pregnant during the previous breeding season,” says Davis. This measurement evaluates calf death loss due to dystocia (calving difficulty), spontaneous abortion or any other reproductive health problems. Also, Davis suggests identifying and culling any cows that lost their calves during this time so resources can be dedicated to productive cows in the operation.
“Multiple records and analysis can be used to evaluated cow herd productivity at weaning time,” he says. First look at weaning percentage by comparing the number of weaned calves by the number of animals that had a live calf. This evaluates calf death loss from calving to weaning. There are multiple ways to analyze calf weaning weight as it relates to cattle herd productivity, including:
- Comparison of pounds of weaned calf per cows exposed during the previous breeding season. This measurement ultimately tells the cattle producer the productivity of their herd.
- Comparison of calf weaning weight to cow body size at weaning. This measurement is an indicator of how productive each individual cow is, which can be very useful in identification of productive females that should be retained and poor producing females that should be removed from the herd to improve herd productivity.
Davis suggests contacting your local MU Extension livestock field specialist for more information on how to use a cow recordkeeping system to make your cattle operation successful.
Source : missouri.edu