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Urara Watanabe,Mitsuhiro Takagi,Osamu Yamato,Takeshige Otoi,Koji Okamoto 대한수의학회 2014 JOURNAL OF VETERINARY SCIENCE Vol.15 No.2
This retrospective study was conducted to confirm therelationship between pre- and postpartum metabolicparameters and postpartum reproductive performance and toclarify seasonal characteristics of the metabolic parameters byusing our metabolic profile test (MPT) database of JapaneseBlack breeding herds. In evaluation 1, MPT databases of bloodsamples from multiparous cows collected prepartum andpostpartum were divided into two groups according to calvinginterval, and each MPT parameter was compared. Inevaluation 2, the same MPT databases used in evaluation 1 weredivided into two groups according to the sampling period. Significant differences were found in the prepartal total proteinand postpartal γ-glutamyltransferase in evaluation 1. Inevaluation 2, significant differences were found in the prepartaland postpartal total protein, albumin/globulin ratio, andglucose. Clear seasonal differences in MPT results emphasizedthe usefulness of the MPT in breeding cattle herds fedhome-pasture roughage and suggest that unsatisfactoryreproductive performance during hot periods reflectsinadequate nutritional content of the diet and possible reducedfeed intake due to heat stress.