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Some factors affecting rate and economy of gains in beef cattle

Creator:: Dahmen, J. J. (Jerome John), 1919-
Resource Type:: Masters Thesis
Full Text:: the experental animals, and to herdsman Lyle weaver nd graduate student M. J. Burns who assisted in

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:: mathematical model was fit: 31 Yijklmno r µ+ s i+ p j+ tk + ml + dm + rn +( sp) i j+ (pt) jk + e

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:: char e of major Redacted for Privacy J f Department o t) Animal Science Redacted for Privacy Dean

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:: it was inconvenient for them to do so. The author is grateful to Drs. E. J. Dornfeld, D. L

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:: and content of the thesis is gratefully acknowledged. Encouragement by Drs. J, C. Miller

Response of genetically different groups of sheep to hill pasture conditions

Creator:: Johnston, Elbert Felton
Resource Type:: Dissertation

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:: represents the mean value for the ith inbred, x.. the mean value of the Fl re- J .th .th us represents

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

Creator:: Oloufa, Mohamed Mohamed
Resource Type:: Dissertation
Full Text:: subje ctod t o continuous high temperature ( table J. ) . It is also to be noted that t1ijroprotein in

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

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:: 0.5 to SP for the upper limits and subtracting 0.5 from SP for the lower limits. READ (60,3) (SP(J

ScholarsArchive@OSU

Some factors affecting rate and economy of gains in beef cattle

Some genetic and environmental factors affecting weaning weights of lambs

Electrocardiograms and related variables of dwarf beef cattle

Genetic polymorphism of sheep hemoglobin

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

Response of genetically different groups of sheep to hill pasture conditions

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

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

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

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

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