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Year 2009 Remove constraint 2009: 2009 Subjects genetic variation Remove constraint genetic variation: genetic variation Subjects dairy cows Remove constraint dairy cows: dairy cows

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1. A longitudinal study of Giardia duodenalis genotypes in dairy cows from birth to 2 years of age

Description:: Includes references
Author:: Santín, Mónica , Trout, James M. , Fayer, Ronald
Subject:: dairy cows , cattle diseases , disease prevalence , Giardia lamblia , giardiasis , genotype , genetic variation , feces , animal age , cysts (developmental stages) , ribosomal RNA , nucleotide sequences , polymerase chain reaction , calves , heifers , disease reservoirs , Maryland
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009

2. Impact of genetic merit for milk somatic cell score of sires and maternal grandsires on herd life of their daughters

Description:: Includes references
Author:: Miller, R.H. , Norman, H.D. , Wright, J.R. , Cole, J.B.
Subject:: dairy cows , Holstein , Jersey , somatic cell count , genetic merit , genetic variation , sires , longevity , breeding value , artificial insemination , bovine mastitis , culling (animals) , lactation , temporal variation , seasonal variation , phenotype , disease resistance
Collection:: Journal Articles, USDA Authors, Peer-Reviewed
Year:: 2009