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Pregnancy diagnosis in dairy goats and cows using progesterone assay kits
Author(s) -
DIONYSIUS DA
Publication year - 1991
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.1751-0813.1991.tb09832.x
Subject(s) - pregnancy , medicine , zoology , early pregnancy factor , dairy cattle , obstetrics , gynecology , biology , gestation , genetics
SUMMARY Early pregnancy diagnosis in dairy goats and cows was studied using enzyme immunoassays (EIA) to measure progesterone concentrations in whole milk samples collected approximately 3 weeks after mating. Two qualitative on‐farm assay kits and 2 quantitative assay kits, all designed for use in the dairy cow, were tested for their accuracy with goats milk samples. Accuracy of diagnosis of goat pregnancy ranged from 83 to 88%, and of non‐pregnancy from 80 to 100%. Pregnancy diagnosis with samples of cows milk using 2 quantitative kits gave accuracies of 66 to 68% for pregnancy, and 90 to 91% for non‐pregnancy. Possible causes of error in the early diagnosis of pregnancy with milk samples are discussed.