Effects of age, temperature-season, and breed on blood characteristics of dairy XXXX .

@entity1496 @entity908 @entity460 @entity3151 @entity291
Two hundred twenty four dairy @entity291 (6 mo to second calving) representing four breeds (169 Holstein, 24 Guernsey, 19 Jersey, 12 Brown Swiss) were used to determine effects of age, temperature-season, and breed on blood characteristics. A total of 1183 blood samples were collected by jugular venipuncture in the middle of each temperature-season. Covariate age affected blood profile except for hemoglobin, oxyhemoglobin, glutamic-oxalacetic transaminase, and albumin. Temperature-season increased or decreased all measures except enzyme @entity908 phosphokinase, total @entity908 phosphokinase, @entity460 and @entity3151 . Years differed for all measures except hemoglobin and oxyhemoglobin. Except for enzyme @entity908 phosphokinase, total @entity908 phosphokinase, and @entity3151 , breeds differed in other measures. There were interactions between temperature-season and year, temperature-season and breed, and year and breed. Differences among temperature-seasons were not consistent from year to year. Breed differences were not consistent from temperature-season to temperature-season for @entity460 or protein-bound @entity1496 . Breed differences were not consistent from year to year for glutamic-oxaloacetic transaminase, total protein, albumin, or @entity460 .
