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Nonprotein nitrogenous constituents of the blood in relation to rumen development and growth in suckling lambs

Creator:: Jessup, Gordon Lee
Resource Type:: Dissertation
Full Text:: due to differences in the activity of their various physiological processes which, no doubt, are

Effectiveness of selection for productive characteristics in developing the Montana no. I hogs

Creator:: McEwen, Wesley Charles
Abstract:: One of the most important productive characteristics of hogs is reproductive efficiency. Reproductive efficiency is best measured by litter size at weaning. Litter size at birth and weight of the pigs at birth are among the most important factors affecting litter size at weaning. It has been demonstrated that less...
Resource Type:: Masters Thesis
Full Text:: in Developing the Montant No. 1 Hogs AN ASTFACT OF TI TEIS OF p es1ey Charles Mcwen For the M

Effect of certain blood enzymes and cellular constituents on growth in different genetic groups of sheep

Creator:: Hutto, Daniel C.
Abstract:: In the present study, five breeds of ewes and their lambs were utilized. The breeds used were: Border Cheviot, Dorset Horn, Columbia, Suffolk and Willamette. In all, 31 ewes and 42 lambs were involved. The blood constituents which were determined for the ewes and lambs were: acid and alkaline phosphatase,...
Resource Type:: Dissertation
Full Text:: , Columbia, Suffolk and Willamette. In all, 31 ewes and 42 lambs were involved. The blood constituents

Performance of three inbred lines of Herford cattle and their linecrosses

Creator:: Munji, Marcus Tebid
Abstract:: Three inbred and relatively unrelated lines of Hereford cattle (1. Lionheart, 2. Prince, and 3. David) developed at the Corvallis branch of the Oregon Agricultural Experiment Station as part of the W-1 project of the Western States were crossed annually from 1963 through 1965 inclusive. Data on 137 inbred and...
Resource Type:: Masters Thesis
Full Text:: were inbred while 56 were linecross calves. There were 16 inbred and 42 linecross female calves. The

Genetic and physiological factors associated with gonadotropic and thyrotropic hormone content of sheep pituitaries

Creator:: Plotka, Edward Dennis
Abstract:: Data were taken from 47 animals consisting of five breeds: Border Cheviot, Columbia, Dorset Horn, Suffolk, and Willamette. Both sexes were represented in each breed, although in unequal numbers. The pituitaries were assayed for gonadotropic and thyrotropic hormone content by injecting a suspension of the macerated gland in saline into...
Resource Type:: Masters Thesis
Full Text:: data showed that there were no differ- ences in the hormone content per unit of pituitary weight of

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:: conception occurred. Series of least squares analyses were accomplished with data from each of seven

Morphology of epididymal spermatozoa from inbred and linecross bulls

Creator:: Turner, H. A.
Abstract:: Data were presented on epididymal spermatozoa from 29 inbred and linecross bulls raised at Oregon State University in connection with the Western Regional Beef Cattle Breeding Project, W-1. The inbred bulls came from four inbred lines. Three of these inbred lines were Herfords and the other line was Angus. The...
Resource Type:: Masters Thesis
Full Text:: College of Washington. Washington Agricultural Experiment Stations. Technical Bulletin no. 2) 24

Hormonal stimulation of breeding activity in different genetic groups of ewe lambs

Creator:: West, Dennis Errol, 1942-
Abstract:: An investigation of the effects of exogenous gonadotropic treatments on fertility of various genetic groups of ewe lambs were run over a six-year period. Since hormonal treatments varied and the experimental animals were different from one breeding season to the next, each year comprised a separate study. Hormone treatment included...
Resource Type:: Dissertation
Full Text:: , histological examination of the reproductive tracts of treated and control ewe lambs were made. No differences

Some genetic and environmental factors affecting weaning weights of lambs

Creator:: Dahmen, J. J. (Jerome John), 1919-
Abstract:: Eight purebred rams (four Suffolk and four Panama) previously selected as high and low on the basis of post-weaning performance feed test of 84 days were used each of three years. Each of the rams was mated to approximately 25 grade Panama ewes each year. One ram and 25 ewes...
Resource Type:: Dissertation
Full Text:: rams having a high '- post -weaning rate of gain were no larger at weaning than those sired by

Genetic and physiological relationships of growth hormone and growth in goats

Creator:: Simms, Danny Dale
Abstract:: An F₁ population resulting from mating pygmy and normal goats (local commercial breeds) was crossed to give an F₂ population. Analysis of wither height and body weight indicated that the F₂ population was intermediate between the parental types (pygmy and normal) with little overlap of phenotypic values for body size...
Resource Type:: Dissertation
Full Text:: no sig- nificant differences in serum GH levels between male normal and male pygmy goats although

ScholarsArchive@OSU

Nonprotein nitrogenous constituents of the blood in relation to rumen development and growth in suckling lambs

Effectiveness of selection for productive characteristics in developing the Montana no. I hogs

Effect of certain blood enzymes and cellular constituents on growth in different genetic groups of sheep

Performance of three inbred lines of Herford cattle and their linecrosses

Genetic and physiological factors associated with gonadotropic and thyrotropic hormone content of sheep pituitaries

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

Morphology of epididymal spermatozoa from inbred and linecross bulls

Hormonal stimulation of breeding activity in different genetic groups of ewe lambs

Some genetic and environmental factors affecting weaning weights of lambs

Genetic and physiological relationships of growth hormone and growth in goats

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