Index Catalog // ScholarsArchive@OSU

Start Over

Filtering by: Committee Member Hohenboken, William

Perinatal mortality and preweaning growth of progeny of ewe lambs

Creator:

Gendron, Eric

Abstract:

Half Polypay ewe lambs were bred to Suffolk, North Country Cheviot and Hampshire rams to lamb at about one year of age. Type of birth-rearing significantly affected mortality by 70 days of age and all weights of lambs from birth to weaning. The mortality rate at 70 days of age...

Resource Type:

Masters Thesis
Development, evaluation and application of a mixed-family selective breeding method for the Pacific oyster (Crassostrea gigas)

Creator:

Matson, Sean Erik

Abstract:

This dissertation develops mixed family selection for Pacific oysters using marker-based pedigree reconstruction. It focuses on improving the efficiency of parentage assignment, determining the optimum life stage to mix oyster families for rearing and selection, comparing mixed-family and separate-family selective breeding in the field, and applying the mixed method to...

Resource Type:

Dissertation
Genetic considerations in cloning western hemlock

Creator:

Foster, George Samuel

Abstract:

Using clones to regenerate a species new to clonal reforestation presents the forest manager with many problems. A number of interrelated and interdependent research and development activites are needed to answer these technical questions. Network diagraming was used for scheduling research activities and for indicating interdependencies among activities. The resultant...

Resource Type:

Dissertation