title: Validation of a human progesterone enzyme immunoassay (EIA) kit for use on serum of cattle in Cameroon.
abstract: A study aimed at validating a human progesterone enzyme immunoassay kit was carried out on cattle at Bambui, Cameroon. Progesterone ELISA Kits (EH-511) were obtained from Clinpro International. Forty-one cows were selected, of which 19 were pregnant and 22 within 14 days post partum. Blood samples were analysed and progesterone levels were deduced from a curve obtained from standard absorbance values (A450). Results show that 95.5% of postpartum cows had progesterone levels below 1 ng/ ml, with the highest level being 0.75 ng/ml. The mean level was 0.5 +/- 0.26 ng/ml. The cows in the 'pregnant group' had progesterone levels ranging from 3.5 to 17.5 ng/ml. This kit can be used for measuring progesterone levels in cattle. Levels of 1 ng/ml for two consecutive samples or one sample at or above 3 ng/ml are an indication of the presence of corpus luteum, while cows below 1 ng/ml will be in anoestrus.
authors.affiliation: Institute of Agricultural Research for Development, Bambui B.P. 51, Bamenda, Cameroon. hbayemi@yahoo.fr
authors.forename: P H
authors.initials: PH
authors.lastname: Bayemi
authors.forename: V M
authors.initials: VM
authors.lastname: Nsongka
authors.forename: B M A O
authors.initials: BM
authors.lastname: Perera
authors.forename: D
authors.initials: D
authors.lastname: Cavestany
authors.forename: E C
authors.initials: EC
authors.lastname: Webb
mesh_terms: D000818:Animals; D002163:Cameroon; D002417:Cattle / Q000097:blood*; D005260:Female; D007124:Immunoenzyme Techniques / Q000379:methods / Q000662:veterinary*; D011247:Pregnancy; D011258:Pregnancy Tests / Q000379:methods / Q000662:veterinary*; D011374:Progesterone / Q000097:blood*; D015203:Reproducibility of Results
chemical_list: D011374:Progesterone