Index Catalog // ScholarsArchive@OSU

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:: MONTANA NO. I HOGS by 1NESLEY CHARLES McEWEN A THESIS submitted to OREGON STATE COLLEGE in

Genetics of sheep transferrins as determined by disc electrophoresis

Creator:: Nix, Carroll Eugene
Abstract:: A total of 902 plasma samples from the Rambouillet, Targhee, Columbia, Lincoln, and Suffolk breeds of sheep were analyzed for transferrin type by disc electrophoresis. Six transferrin types, Tf[superscript A], Tf[superscript B], Tf[superscript C], Tf[superscript p], Tf[superscript E], and Tf[superscript P], were found in the Rambouillet, Targhee, and Columbia breeds...
Resource Type:: Dissertation
Full Text:: are inherited as co-dominant autosomal allelic genes. No evidence was found to support a pre- vious

Comparative values of liver nicotinamide nucleotide coenzymes, endocrine glands, and their relationships with production traits of diallel crossed beef bulls

Creator:: Anwar-Afghan, Mohammad
Abstract:: This investigation for the first time reports information on the correlation of various forms and ratios of nicotinamide nucleotide coenzymes in the liver tissue and endocrine glands weight with various production traits. Fifty-five inbred and line cross beef bulls raised under standard management conditions and slaughtered at 1000 lbs. body...
Resource Type:: Dissertation
Full Text:: no report on these coenzymes in beef cattle. One of the reasons may be the lack of experimental

Genetic parameters of the house fly (Musca domestica Linn.)

Creator:: Konanta, Sugsanguan
Abstract:: Eight strains of housefly, Musca domestica Linn., from two laboratories were intercrossed to form a stock population. Virgin males and females from the stock were collected, and nine sets, each consisting of twelve males mated to five females, were successively done. Pupae weight, adult weight, emergence time and egg production...
Resource Type:: Masters Thesis
Full Text:: has been proven to be a very effective method in selection. Selection indexes were: I = -0. 0504Y1

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:: 13.0 5.0 200 Table 2. Means for comparing general combining ability of lines I, II, and III. No. of

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:: present in excess over NADH and NADP+ respectively. No significant differences in coenzyme concentrations

The relationship between x-ray induced teratogeny and chromosome aberrations in golden hamster embryos

Creator:: Jones, William Elvin
Abstract:: The relationship between x-ray induced chromosome aberrations and x-ray induced embryonic abnormalities was studied. Golden hamsters were irradiated during four stages of gestation: the blastocyst stage, 4.5 days post-copulation; the primitive streak stage, 6.5 days post-copulation; the organogenesis stage, 9.5 days post-copulation; and the period of fetal growth, 11.5 days...
Resource Type:: Dissertation
Full Text:: responsible for the embryonic abnormalities but there is no correlation between the numbers of chromosome

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:: homozygosity as inbreeding exceeded 35%. There were no significant differences among the means of pro

Influence of chelating agents on cytological exchanges and genetic recombination in Zea mays L.

Creator:: Jones, Donald Dean
Abstract:: The present investigation with the chromosomes of Zea mays was conducted to determine: (1) the effects of chelating agents on the process of cytological exchange, and (2) the effects of chelating agents on genetic recombination. To ascertain the influence of chelating agents on cytological exchange, four known heterozygolis paracentric inversion...
Resource Type:: Dissertation
Full Text:: counting the number of dicentric bridges and acentric fragments observed in anaphase I and IL Depending

Response of scorbutic guinea pigs to ascorbic acid and adrenocorticotropic hormone (ACTH)

Creator:: Riker, Joseph Thaddeus III
Abstract:: Thirty-six female guinea pigs were placed on a scorbutogenic diet for 14 days and then divided into groups of four. Three groups received adrenocorticotropic hormone (ACTH) with each group given 10, 20, or 40 units. Three groups each received 50 mg of ascorbic acid and three groups received 50 mg...
Resource Type:: Masters Thesis
Full Text:: alone there is no difference between the tirne intervaLs, but there is a significant differenc. (p

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:: Suffolk Overall c/Treatment I- No. of ewes 11 10 21 No. of ewes lambing 10 6 16 No. of lambs born 10 6 16

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:: , virtually no response to selec- tion for low index occurred. Responses of the component parts of the

A comparison of metabolism of rapidly and slowly gaining beef cattle

Creator:: MacDonald, Malcolm Allan
Resource Type:: Dissertation
Full Text:: . No . T ot a1 _____ieraaies Hereford 38 B 3,1312, 2 B 5,B 6, 6 (1) B12. i B 5,B 6, 6 B 9,317, B 9

Estimates of combining abilities, heterotic effects and phenotypic correlations among in-bred lines of beef cattle and their line-crosses

Creator:: Humes, Paul Edwin
Abstract:: The investigations were based on a complete diallel cross among three inbred lines of Hereford cattle. Records of Angus calves born during the same period were used to obtain more accurate estimates of environmental effects and to determine breed differences among the various traits included in the study. Estimates of...
Resource Type:: Dissertation
Full Text:: components of carcass grade, percent drip, tenderness, juiciness and thyroid gland weight. No specific

Certain genetic and maternal environmental influences on growth rate and body composition of lambs

Creator:: Addleman, Albert Duane
Abstract:: The present study was designed to investigate the relationship of milk production and milk quality to growth rate and certain organ-oleptic measurements of lambs of mutton breeds, Nine mature ewes in their fourth lactation of the Border Cheviot, Dorset Horn, Columbia, Suffolk, and Willamette breeds were acquired making a total...
Resource Type:: Dissertation
Full Text:: ',rp4N2EqD_y_c_o3rl'gs_rug[ 9r _r4YBl_ _ Abstract approved I rrad] " r-p-"" rJ" "o7- i The present study was designed to

Ova tranfers in sheep and rabbits : studies on material influences and irradiation damage

Creator:: Hunt, William Lynn
Abstract:: The first study utilized ova transfer in sheep and involved hormonal treatments for synchronization of estrus and superovulation in an investigation of crossbred maternal influences on inbred and linecross lambs. Synchronization of estrus in ewes was achieved effectively with either oral progestogen, 6 α-methyl-17α-hydroxy-progesterone acetate (60 mg./ewe/day), or intramuscular injections...
Resource Type:: Dissertation
Full Text:: Ewe No. Line Rarn Line II Ewe No. Line Rarn Line III Ewe No, Line I z 3 4 I I II III 5 6 7

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:: both male and female calves, there was no significant dif ference between the mean birth weights and

Certain physiological and pharmacological effects of radiation on rabbits

Creator:: Wagelie, Edwin Gan
Abstract:: Data were taken, following irradiation exposure to 100r and 300r cumulative dose, on 89 rabbits of three breeds that vary greatly in body size. Hematological, intestinal motility, and ear vascularity examinations were performed. Least square estimates have been obtained and an analysis of variance has been conducted in order estimate...
Resource Type:: Dissertation
Full Text:: (05rs.) (Major) D&t. theate i presented _______________________ riti. CERTAIN PHYSIOLOGICAL AND

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

Estimation of general and specific combining abilities from a diallel cross of three inbred lines of Suffolk sheep

Creator:: Schilling, Prentiss E. (Prentiss Edwin), 1941-
Abstract:: The investigations were based on a complete diallel cross among three inbred lines of Suffolk sheep. Line of sire effects were assumed to be an estimate of general combining ability effects while sire x dam interaction was assumed to be an estimate of specific combining ability. The line of dam...
Resource Type:: Dissertation
Full Text:: evaluation of the lamb producing ability of the line- cross ewes. No straight line ewe lambs were included

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:: - tively. There were no differences between high, low and control line progeny when they were reared by

Electrocardiograms and related variables of dwarf beef cattle

Creator:: Pinjani, Moti, 1939-
Abstract:: Electrocardiograms from 12 compressed male (CM), 16 compressed female (CF), ten synthetic compressed female (SCF), nine brachycephalic female (BF), and 15 dolichocephalic female (DF) dwarfs from Davis, California, taken in the scapular lead S-II (prescapular position positive and right forelimb negative) were analyzed, The data on dwarf electrocardiograms were compared...
Resource Type:: Dissertation
Full Text:: three standard limb leads. No abnormalities were noted. EKGs were obtained by De Groot (8) with leads I

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

Effects of radiation on selection progress in mice

Creator:: Womack, James Ernest
Abstract:: The effects of x-irradiation on quantitative genetic traits was investigated by comparing the response of irradiated mice to selection for litter size and 28-day weight with the response to selection for the same two traits in non-irradiated lines. Irradiated lines were maintained at three levels of x-irradiation, 25 r, 50...
Resource Type:: Dissertation
Full Text:: both males and females immediately before pairing. No matings were made later than 14 days after

Effects of radiation on selection progress in mice

Creator:: Womack, James Ernest
Abstract:: The effects of x-irradiation on quantitative genetic traits was investigated by comparing the response of irradiated mice to selection for litter size and 28-day weight with the response to selection for the same two traits in non-irradiated lines. Irradiated lines were maintained at three levels of x-irradiation, 25 r, 50...
Resource Type:: Dissertation
Full Text:: both males and females immediately before pairing. No matings were made later than 14 days after

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:: coefficient between these constituents was highly significant, whereas no relationship was found within

The effects of thiouracil and thyroprotein on growth, wool production and fertility of rams

Creator:: Adams, Charles C.
Resource Type:: Masters Thesis
Full Text:: IN !(UJG RAL3 R1 NO. NUMBER 0F VEk3 AFTER SEPT31B12?.]. AGE SEPT i -ìawed Interest ounted

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

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:: were observed for acid ' phosphatase levels in lambs. No breed differences for this enzyme were

The effect of antibiotics on semen production

Creator:: Bhannasiri, Tim
Resource Type:: Masters Thesis
Full Text:: . The authors concluded that the addition of antibiotic yielded no significant improvement i n the

Reproductive performance in the rat in relation to selection for time of puberty

Creator:: Warren, Edward Perrin
Resource Type:: Dissertation
Full Text:: : l Kean • I ~ Mean I I 3 Vean Line 1 No. A&e s No. AS! 1 No . Age 1 No. A&e Late Early 43

Hematological study of genetically different lines of growing beef cattle

Creator:: Bhannasiri, Tim
Resource Type:: Dissertation
Full Text:: . Arscott, Dr. Graham I. Alexander, Dr. Robert W. Mason, arid Dr. Samuel W. Sabin for their advice

Gonadotropins in pituitaries of inbred and linecross beef bulls and effects of irradiation of mammalian pituitary glands on their ability to induce in vitro ovulation of frog ovaries

Creator:: North, Warren Arthur
Abstract:: There were two studies involved in the thesis research. In the first study, variation in the amount of adenohypophysis gonadotropins among 22 individual beef bulls were investigated. These bulls represented four inbred lines, and six linecrosses. The bulls were raised in the Oregon State University purebred herd. The bulls were...
Resource Type:: Dissertation
Full Text:: Hereford inbred lines of cattle were compared with one another no significant differences were found for

Sex hormone influence on rate and efficiency gains, endocrines and carcass characteristics of rabbits

Creator:: Rasheed, Ahmed Adel
Resource Type:: Dissertation
Full Text:: , ENDOCRINES AND CAPCASS CHARACTERISTICS OF RABBITS by AFfl ED ADEL RAS HEED A I''T' subntLtted to

Environmental temperature and the thyroid gland involvement in fertility of male rabbits

Creator:: Oloufa, Mohamed Mohamed
Resource Type:: Dissertation
Full Text:: Cmiiittee Iban o.f Graduate School Jeanne Fuller, Typist DDICAT ION. TO UY U(YHR whoni I awe so

Genetic and environmental factors affecting certain productive characters in sheep

Creator:: McLeroy, G. B. (George B.)
Resource Type:: Dissertation
Full Text:: the theria haa been prepared. I awe chief benediction. lezt. reco¢tian ia extended to lira. B.uth

The effect of dietary factors upon the hormone content of the anterior pituitary

Creator:: Nicholson, Hugh Hampson
Resource Type:: Dissertation
Full Text:: , Stewart Floyd, Frank Hudson, Donald Price and Earl Ray I tender my sincere thanks for their assistance

Some genetic and environmental factors influencing the weaning weights of southwestern range cattle

Creator:: Pahnish, O. F. (Otto Floyd), 1920-
Resource Type:: Dissertation
Full Text:: this report is based, and to those who assisted with the collection and con solidation of the data

Response of genetically different groups of sheep to hill pasture conditions

Creator:: Johnston, Elbert Felton
Resource Type:: Dissertation
Full Text:: manuscript. I sincerei thank Dr. Lyle Calvin for his help arid direction in the statistical work. ¡te

Some factors affecting rate and economy of gains in beef cattle

Creator:: Dahmen, J. J. (Jerome John), 1919-
Resource Type:: Masters Thesis
Full Text:: Chalrmai of School Graduate Co!ar3i.ttee Dean of Graduate School Date thesis is presented I Typed by

Heart rate patterns in beef cattle

Creator:: Ratarasarn, Sucheep
Resource Type:: Dissertation
Full Text:: .................. 3 1'orm&I Variation in Heart Rates of Cattle . . . . 4 Variation of the Heart Rate Due to Age or

Anesthesia time as a measure of body fat in genetically different groups of lambs

Creator:: Hudson, Frank A., 1923-
Resource Type:: Dissertation
Full Text:: of {}re&urtr School Detr tharlr k Drc;cntrd fmoA by Yrrne tngl.cnfm Ante*I Edlbendny En Chargc 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:: ; DETERMINED POLYMORPHIC BLOOD CONPONENTS WITH PROLIFICACIES OF PUREI-Ei} i\ND CROSSBRED PIGS. Redacted for

Effectiveness of selection for gains in body weight in beef cattle

Creator:: Hitchcock, Glen Henry
Abstract:: Research has yielded valuable information about the inheritance of body weight in many mammals. The results with one species may not be directly applicable to another species, but since the results do not contradict genetic theory, one must assume that the same general rules apply to all species. When the...
Resource Type:: Masters Thesis
Full Text:: Graduate School Date Thesis i presented 3 ]95 Typed by Wanda Bareinger ACKNOWLEDGEMENTS The

Genetic and environmental factors influencing appetite in beef cattle and the relation of appetite to rate and efficiency of gain

Creator:: England, Noah Clinton
Resource Type:: Dissertation
Full Text:: ATTLE AND THE RELuT I ON OF APPETITE TO RATE AND EFFICIENCY OF GAIN by NOAH CLLT EGLAND A THIS

The relationship between serum proteins and growth in beef calves

Creator:: Ampy, Franklin Roosevelt
Resource Type:: Masters Thesis
Full Text:: statistical analysis. To Dr. G. I. Alexander, Division of Animal Industry, Queensland, Australia, tor his

Chemical and cellular constituents in the blood of genetically different lines of growing beef cattle

Creator:: Price, Donald Austin
Resource Type:: Dissertation
Full Text:: interest, and especially to Mr. G. I. Alexander and Doctor John Kaufmes for their technical assistance

The serum phosphatases of beef cattle as indices for rate and economy of gains

Creator:: Alexander, Graham Irving
Resource Type:: Masters Thesis
Full Text:: ThTROI)UCTION ............. i REVIEVv OF LITERATURE ............... 3 i. Serum Alkaline PhosohaLase

Some genetic and environmental factors affecting "net efficiency" of beef cattle

Creator:: Nelms, George Estes, 1927-2011
Resource Type:: Masters Thesis
Full Text:: produced when superior genetic material is exposed to opti • mum environmental condit i ons. While

Urinary 17-ketosteroids, rate of gain, feed efficiency, and certain blood constituents of beef cattle

Creator:: Nelms, George Estes, 1927-2011
Resource Type:: Dissertation
Full Text:: no correlation between pre• and post -weaning periods, and concluded that gains prior to weaning

The response of genetically related groups of young beef cattle to administered male hormones

Creator:: Burris, Martin Joe
Resource Type:: Dissertation
Full Text:: Dete the.i is presentad 4i i. Title The l.ionø of Usitica13j Related Uroups o! oungJeef Cattle to

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

Genetic, environmental and residual maternal influences on cow productivity and growth of calves

Creator:: De Baca, Roberto Luciano C., 1930-
Resource Type:: Dissertation
Full Text:: i grateful to Dr. Ralph Bogart for much personal ar professional guidance and deliberate

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:: on Litter Size and Body Weight 16 i MATERIALS AND METHODS 19 RESULTS AND DISCUSSION 25 Comparison

Brain acetylcholinesterase activity at intervals after head irradiation in the rabbit

Creator:: Geel, Stanley Ernest
Resource Type:: Masters Thesis
Full Text:: . 25. Livanov, M. No and I. N. Kondrat 'eva. Sensitivity of the nervous system to low -level radiation

The inheritance of medullation in wool

Creator:: Young, Sing Sze
Resource Type:: Masters Thesis
Full Text:: . CONTENTS I. INTRODUCTION AND LITERATURE i II. MaTERIAL AND THOD 4 III. RESULTS 6 1. Statistical

Relation of rate of gain to feed efficiency in beef cattle

Creator:: Blackwell, Robert Leighton
Resource Type:: Masters Thesis
Full Text:: LASTER OF SCIENCE June l9l / APPROVED: / Tr flhrc i-sf' T-r Head of Department of Animal

The comparison of two methods of evaluating inheritance of milk production of dairy sires

Creator:: Srinives, Supote
Abstract:: The production records used were all converted to a comparable based, 305 day lactation period, two times a day milking, and mature equivalent (305 days-2-x-ME) of 71 cows from four Holstein bulls and 59 cows from four Jersey bulls were used for the study. The Equal Parent Index, Regression Index...
Resource Type:: Masters Thesis
Full Text:: suggestions regarding the preparation of this thesis. Thanks are extended to Dr. I. R. Jones, former

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:: preparation of this thesis, I express my humble gratitude. To Dr. Lyle D. Calvin, for his interminable

The inheritance of growth and carcass characteristics in sheep

Creator:: Busch, Robert Edward
Resource Type:: Dissertation
Full Text:: loin. weight of reek produced sore higd hly i,-rsiticaxt morrslatá o.s within lines et sire te did

Nitrogenous constituents in the blood of four lines of calves

Creator:: Ampy, Franklin Roosevelt
Resource Type:: Dissertation
Full Text:: ._or nore i . . Serum Urea Nitrogen . 25 Statistical Analysis 26 ,., F ESULTS ti.. Nursing

The effect of levels of inbreeding of dam and offspring upon performance of purebred suffolk lambs

Creator:: England, Noah Clinton
Resource Type:: Masters Thesis
Full Text:: Birth Line and Year Effects The lsmbs In line No. i were significantly small er at birth than were

The response of different strains of mice to administered testosterone and stilbestrol

Creator:: Ray, Earl Elmer
Resource Type:: Dissertation
Full Text:: the requirements for the degree of DOCTOR OF PHILOSOPHY J'une 1959 i {r {r$ E: tt ta}E ll, F

Analyses of physical sources of variation in estimated genetic growth parameters in beef cattle

Creator:: Sabin, Samuel Waybright
Resource Type:: Dissertation
Full Text:: "no. ![ho cenr {t rt and lcthodt of, f,ct{l.ag; rtrr uttd at thr &{I"I*ttc rtettos ee rt tbc llralir

Selection applied, response of traits and combining abilities of inbred lines of beef cattle

Creator:: Hoornbeek, Frank K. (Frank Kent), 1928-
Abstract:: The investigations reported are based on two studies; the first is concerned with the selection practiced for performance in one inbred Angus and three inbred Hereford lines of cattle, the realized responses, levels of inbreeding and associated performance, and heritabilities of the performance traits. Selection differentials for all performance traits...
Resource Type:: Dissertation
Full Text:: ence In Charge of Major Chairma .' of Genetics I ommittee Head of 'separtment of ' nimal Science

The relation of the serum phosphatases to growth of genetically different groups of beef cattle

Creator:: Alexander, Graham Irving
Resource Type:: Dissertation
Full Text:: certain laboratory facilities necessary for carrying out tíiis investigation and to i)octor R. G

Selection for body weight in synthetic monoparous populations of mice

Creator:: Mason, Robert William
Resource Type:: Dissertation
Full Text:: mating years. No such extrees were involved in the other breeding gups. i remarkably unexnected

Performance in relation to weaning response in production tested beef cattle

Creator:: Williams, Lloyd Grainger
Resource Type:: Masters Thesis
Full Text:: i Growth Curve of Bull No. M with Expanded Section A-A to B-B About Weaning . . . . 11

Changes in certain blood constituents associated with growth and development of young beef cattle

Creator:: Williams, Charles Melville
Resource Type:: Dissertation
Full Text:: essential to the completion of this study. TABLE OF COi TENTS Page IN T R ODU C T I ON

The inheritance of DDT resistance in house flies

Creator:: Johnston, Elbert Felton
Resource Type:: Masters Thesis
Full Text:: the data. TABLE OF CONTENTS CHAPTER Pace I INTRODUCTION AND LITERATURE . . . . . . . i II

Some genetic and environmental factors associated with performance and carcass traits of beef cattle

Creator:: Hoornbeek, Frank K. (Frank Kent), 1928-
Resource Type:: Masters Thesis
Full Text:: showed no significant differences between years (Table 2). TABLE i MEANS OF DEPENDENT VARIABLES

Genetic analysis of maternal ability and evaluation of some environmental factors affecting preweaning performance of beef cattle

Creator:: Eftekhari-Shahroudi, Feridoun, 1939-
Resource Type:: Dissertation
Full Text:: THESIS OF FERIDO UN E TEK HARI S HAHROUDI for the (Name of student) Genetics (Major) presented on I

A clinical and genetic study of tuberous sclerosis

Creator:: Edwards, Thomas Allen
Abstract:: Tuberous sclerosis is a serious heritable human disorder that involves many organ systems. It was first recognized as a disease entity over a century ago. Its mode of transmission in familial cases has been fairly well established to be that of a single gene locus autosomal dominant trait. However, the...
Resource Type:: Masters Thesis
Full Text:: year No rash Moderate (Female) typical of tub. sclerosis more like (I. Q. of 41) "freckles" 10. D

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