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EXTENSIONS TO A VETERINARY HEALTH AND MANAGEMENT PROGRAM DATA SYSTEM FOR DAIRY HERDS
Author(s) -
Williamson N. B.,
Anderson G. A.,
Blood D. C.,
Malmo J.
Publication year - 1980
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1980.tb02557.x
Subject(s) - herd , ice calving , veterinary medicine , zoology , mastitis , reproduction , index (typography) , dairy cattle , biology , medicine , lactation , pregnancy , computer science , ecology , genetics , world wide web , microbiology and biotechnology
SUMMARY This paper reports additions to our previously described veterinary health and management program for dairy herds. These include a graphical representation of mean milk production per cow per day, a current and historical record of the distribution of the herd in reproduction states, a standardised index of clinical mastitis and an index of the degree of hutritional anoestrus in a herd. For seasonally‐calving herds, new categories of cows requiring examination or consideration have been added to selection lists. These are cows which have no oestrus recorded for 30 days preceding a nominated date for the commencement of breeding and those which have no oestrus recorded for 30 days after the nominated date.