By Ahmadi, A. and Berry, S. L. and Collar, C. and Eenennaam, A. L. and Higginbotham, G. and Reed, B. and Strasser, S. J. and Van Eenennaam, A. L., ,
Description
The periparturient disease surveillance project is designed to collect calving, health and production data from large commercial dairies. Data is currently being collected and monitored from 10 California, USA, dairies milking 550-1650 cows each. All dairies use the commercial record keeping program Dairy Comp 305TM on-farm. The cooperating dairies enter reproductive and health information as a matter of day-to-day data entry. Data on calving difficulty, number of calves born, calf survival rates, calf sex, retained placenta, milk fever, metritis, mastitis, cystic ovarian disease, lameness and left displaced abomasum are being monitored. Reproductive events and test-day milk yield data are also monitored. Cow files are picked up from the dairies monthly and processed at University of California, Davis. Data from the cow files is converted to 3 ASCII files per dairy: cow information, events and test-day information. The ASCII files are then converted to monthly database files using FoxProTM. The monthly files are used to update the dairy master database files, which allows the maintenance of data on cows that leave the herd as well as accumulate multiple lactations on cows. Data are extensively error checked before being added to the master database, and errors are printed out and corrected either at the University or on the dairy. The objectives of the project are to quantify: (1) the relationship of previous lactation milk yield on disease occurrence; (2) the relationships of diseases to each other; and (3) the effect of single or multiple diseases on fertility and milk yield
The periparturient disease surveillance project is designed to collect calving, health and production data from large commercial dairies. Data is currently being collected and monitored from 10 California, USA, dairies milking 550-1650 cows each. All dairies use the commercial record keeping program Dairy Comp 305TM on-farm. The cooperating dairies enter reproductive and health information as a matter of day-to-day data entry. Data on calving difficulty, number of calves born, calf survival rates, calf sex, retained placenta, milk fever, metritis, mastitis, cystic ovarian disease, lameness and left displaced abomasum are being monitored. Reproductive events and test-day milk yield data are also monitored. Cow files are picked up from the dairies monthly and processed at University of California, Davis. Data from the cow files is converted to 3 ASCII files per dairy: cow information, events and test-day information. The ASCII files are then converted to monthly database files using FoxProTM. The monthly files are used to update the dairy master database files, which allows the maintenance of data on cows that leave the herd as well as accumulate multiple lactations on cows. Data are extensively error checked before being added to the master database, and errors are printed out and corrected either at the University or on the dairy. The objectives of the project are to quantify: (1) the relationship of previous lactation milk yield on disease occurrence; (2) the relationships of diseases to each other; and (3) the effect of single or multiple diseases on fertility and milk yield
We welcome and encourage discussion of our linked research papers. Registered users can post their comments here. New users' comments are moderated, so please allow a while for them to be published.