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An analysis of the response to selection for high and low rate of gain in the mouse, Mus musculus

Creator:: Burrill, Melinda Jane
Abstract:: An experiment was conducted to examine the responses to selection for high and low rate of gain in the mouse under a system whereby inbreeding was maximized. Rate of gain was measured by an index designed to include gains in both the pre- and postweaning periods with the gains in...
Resource Type:: Dissertation
Full Text:: the DOCTOR OF PHILOSOPHY (Name) (Degree) GENETICS presented on March 7, 1974 (Major) (Date) Title

Actual and predicted response to selection on maternally influenced traits in the mouse

Creator:: Lind, Ronald Egnard
Abstract:: An experiment was conducted to determine if selection from standardized litters would be effective in separating lines of mice selected for increased and decreased litter weight at 14 days of age, and if response to selection on this maternally influenced trait could be accurately predicted. Data were collected on litter...
Resource Type:: Dissertation
Full Text:: Experiments for Growth Response 4 Selection Experiments on Litter Size 7 Maternal Effects on Litter Size and

Serum T₄ and liver NAD and NADP as performance indicators in beef cattle

Creator:: Brokaw, Bryan Edward
Abstract:: The relationships of serum T₄ (thyroxine) levels and liver nicotinamide nucleotide coenzyme (NAD and NADP) levels with production of traits of beef cattle were investigated at both weaning (182 kg) and following performance testing (363 kg). In addition, the value of these parameters as selection criteria for improved performance was...
Resource Type:: Dissertation
Full Text:: PRODUCTION TRAITS page 1 6 6 6 7 10 12 12 13 15 17 Materials and Methods 17 Results and Discussion

Association of genetically determined polymorphic blood components with prolificacies of purebred and crossbred pigs

Creator:: Kray, Roger LeRoy
Abstract:: Crossmatings were accomplished among three semi-closed lines within a population of pigs, for the purpose of investigating effects of crossbreeding on reproductive traits. Two of the lines were purebred (Berkshire and Yorkshire); the third line ("Composite") consisted of descendants from inter se matings among offspring of crosses of the Berkshire...
Resource Type:: Dissertation
Full Text:: phenotypes. 79 6 Electropherogram demonstrating 6-phosphogluconate dehydrogenase phenotypes. 81 7

Effectiveness of index and elite selection methods

Creator:: Douglass, Larry W.
Abstract:: Mice were used to compare the index and elite selection methods for simultaneous selection of four traits. Selection was for litter size, birth weight, weaning weight and post-weaning gain. Progress was evaluated by examining total phenotypic merit. The standard deviations from the cycle mean for the four traits were summed...
Resource Type:: Dissertation
Full Text:: , -0.47 and +0.30 units respectively. Corresponding selection dif- ferentials were +1. 97, +7. 16, +6. 36

Genetic polymorphism of sheep hemoglobin

Creator:: Templeton, Joe Wayne, 1941-
Abstract:: Five breeds of sheep (Columbia, Targhee, Rambouillet, Lincoln, and Suffolk) were found to possess two hemoglobin types (Hb. A and Hb. B) when their hemoglobins were examined by disc gel electrophoresis. The hemoglobin alleles proved to be co-dominant. Three of the breeds (Columbia, Targhee, and Rambouillet) were maintained at altitudes...
Resource Type:: Dissertation
Full Text:: of the breeds (Columbia, Targhee, and Rambouillet) were maintained at altitudes of 4, 800 to 7, 500

Selection for body weight in synthetic monoparous populations of mice

Creator:: Mason, Robert William
Resource Type:: Dissertation
Full Text:: )escr1ti.on . . . . . . . . . . . Z Expr1meitaiI1an. . . . . . . . . . 7 Environnl3nt

The effect of antibiotics on semen production

Creator:: Bhannasiri, Tim
Resource Type:: Masters Thesis
Full Text:: , feeding and management 6• Collection of semen • 7 Concentration of spermatozoa • • • • • • • • • 7

Relationship of certain blood nitrogen constituents with growth in different genetic groups of sheep

Creator:: Yodseranee, Somchit
Abstract:: Market lamb production usually requires a short period of time. The success of production is therefore dependent upon the growth rate of the lambs which is influenced by milk yields of the ewes. Different growth potentials of animals result from a difference in their utilisation of food. Since metabolism affects...
Resource Type:: Masters Thesis
Full Text:: PILtd_K , . ....-. GENETIC - - . 7 ripr (Na (Name) 5'1,114' prop a esor two -week

Genetic and environmental differences in important economic traits of crossbred sheep in spring lamb production

Creator:: De Baca, Roberto Luciano C., 1930-
Resource Type:: Masters Thesis
Full Text:: assistance In the preparation of the manuscript. TABLE OF CONTENTS Pase i Review of Literature 7

ScholarsArchive@OSU

An analysis of the response to selection for high and low rate of gain in the mouse, Mus musculus

Actual and predicted response to selection on maternally influenced traits in the mouse

Serum T₄ and liver NAD and NADP as performance indicators in beef cattle

Association of genetically determined polymorphic blood components with prolificacies of purebred and crossbred pigs

Effectiveness of index and elite selection methods

Genetic polymorphism of sheep hemoglobin

Selection for body weight in synthetic monoparous populations of mice

The effect of antibiotics on semen production

Relationship of certain blood nitrogen constituents with growth in different genetic groups of sheep

Genetic and environmental differences in important economic traits of crossbred sheep in spring lamb production

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