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HESPERUS PROJECTS BEFORE 1963 LISTED BY YEAR
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| Title |
Author/Year |
| Comparative feedlot performance of individually fed purebred |
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| Hereford steers of comprest and conventional type |
J.E. Ingalls (48) |
| A comparison of comprest and conventional types of Hereford steers as evaluated by body and carcass measures |
C.F. Safley (49) |
| Relationship of thyroid, adrenal and pituitary weights to body development in comprest and conventional types of fat Hereford steers |
K. Lucas (50) |
| Variations in the characteristics of carcasses from comprest and conventional types of Hereford steers |
E.W. Schleicher (50) |
| Heritability of Hereford hair color and correlation between color and performance |
C.F. Hellstrom (51) |
| A selection index for Hereford feeder calves based upon optimum weighting of genetic and economic variation in weaning weights |
L.A. Holland (51) |
| Environmental and genetic effects on the weaning weight of Hereford calves |
J.B. Burgess (53) |
| Effect of age on reproduction in beef cattle |
L.R. Burke (54) |
| Association between inbreeding and antigen occurrence on Hereford cattle |
N.S. Kushwaha (55) |
| The genetic and phenotypic relationship between estimation of fat deposition in Hereford beef steers |
W.C. Behrens (55) |
| Selection indices for beef cattle, incorporating the genetic and economic importance of various traits |
Lindholm (56) |
| The combining abilities of 12 inbred lines of Hereford cattle |
O'Bleness (56) |
| The relationship of lumbar spine radiographs, body measurements and scores to dwarfism in Hereford calves |
M.B. Hughes (56) |
| Rates of gains in Hereford bulls as effected by line, age, weight, years, pens, stall position and weaning grade |
D.B. Moore (58) |
| Relationship between mature size, daily gain and efficiency of feed utilization in beef cattle |
C.R. Lickley (60) |
| Heritability of characteristics of the mammary system of Hereford cows |
B.W. Knapp (62) |
| A study of factors which affect feedlot performance and carcass characteristics of beef heifers |
L.E. Orme (63) |
| Weaning weights of Hereford, Angus and their reciprocal crosses |
V.P. Cornforth (63) |
| The effect of inbreeding and environmental factors on the weaning weight and post weaning growth of range Hereford cattle |
G.O. Harwin (63) |
| The effect of environmental factors on beef cattle in Colorado |
C.R. Cooper (64) |
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| RESEARCH PROJECTS CONDUCTED AT SJBRC SINCE 1963 |
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| Title/Category |
Author/Data Years |
| GENETICS OF REPRODUCTION |
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| Genetic Study on Udder Shape |
61 |
| Estimated Breeding Soundness in Yearling bulls as affected by hereditary factors |
James McNitt 55-65 |
| Testicular growth and semen traits in beef bulls |
P.T. Fagerlin 69-70 |
| Heritability of semen traits in beef bulls |
J.S. Brinks, D. Abadia 57-70 |
| Aspects of cattle sperm cell morphology |
W.L. Mangus, E. Mukasa-Mugerwa 72-74 |
| Aspects of puberty in yearling heifers |
M.J. McInerney 71-76 |
| Libido, Serving Capacity and Breeding Soundness in Beef bulls |
P.J. Chenoweth, B. Abbitt, M.J. McInerney 76 |
| Relationship of age at puberty in heifers to reproduction traits in young bulls |
M.J. McInerney, P.J. Chenoweth, W.L. Mangus 72-74, 76 |
| Relationship of age at puberty in heifers to subsequent fertility and productivity |
J.F. Werre 71-71 and 75-78 |
| Placental traits as measures of calf and dam productivity |
C.C. Sheldon 83 |
| Estimation of heritabilities of pelvic measures in beef cattle |
R.D. Green 80-83 |
| The relationship of sire scrotal circumference on offspring reproduction and subsequent productivity |
B.A. Smith-LaShell 68-83 (bulls) , 71-73,75-81(heifers) |
| Effects of age, breed and weight on BSEs |
S.T. Hughes 79-84 |
| Relationship of semen vesicle size and measures of libido in yearling bulls |
W.C. Russell |
| Genetic parameters of reproductive traits in beef cows |
D.W. Bailey 68-82 |
| Genetics of seminal traits in young beef bulls |
D. Abadia |
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| SELECTION |
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| Evaluation of effects of selection |
J.B. Armstrong 46-62 |
| Effect of selection for growth rate on carcass traits |
G.L. Richardson |
| General and specific combining abilities of inbred Hereford lines |
P.W. Grapevine 46-70 |
| Response to selection in a linecross herd of Hereford cattle |
L.N. Nwakalor 46-71 |
| Selection intensity and response in inbred and linecross populations of Hereford cattle |
L.N. Nwakalor |
| Genetic response to selection |
Benson |
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| GENETICS OF PAPs AND ENVIRONMENTAL CONSTRAINTS |
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| Effect of precipitation on calf weaning weights |
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| PAP and weight relationships in cattle |
J.S. Brinks, D.H. Will 75 |
| The heritability of pulmonary hypertension in beef cattle |
S.B. LeValley 75 |
| Genetic aspects of high mountain disease in beef cattle |
J.G. Schimmel 78 |
| Heritability and repeatability of PAP in beef cows |
J.G. Schimmel 78-80 |
| Heritability and relationship of PAP with pre and post weaning performance traits in yearling beef bulls |
J.G. Schimmel 74-80 |
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| MATING SYSTEMS |
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| Beef calf losses as influenced by mating system, sex and age |
Larry Theurer 51-65 |
| Summary of line and linecross performance of bulls |
R.W. Sutton and J.S. Brinks 62-66 |
| Summary of line and linecross performance of bulls and cow productivity |
J.E. Olson 65-68 |
| Inbreeding and mating system by environment interactions in beef cattle |
D.G. Keller 65-69 |
| Heterosis in weights of Hereford females |
Y. Ferjani 46-74 |
| Changes in genetic variances with increased inbreeding of beef cattle |
W.C. Russell 47-76 |
| Mating system by environment interaction |
T. Elfellah |
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| GENETICS OF GROWTH |
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| Repeatability of gain and efficiency of bulls on test |
C.G. Hoff 56-75 |
| Genetic aspects of feed efficiency |
A.C. Linton 56-75 |
| The relationship of weight and height to beef cow productivity |
W.G. Hays 71-73 |
| Relationships of weights and measurements of performance tested bulls |
W.L Mangus 77-79 |
| Relationships among the growth curve parameters and productivity traits in beef cattle |
R.S. Kersey DeNise 68-77 |
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SYSTEMS OF ANALYSIS
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| Predicting Breeding Values |
W.L. Mangus |
| EPDs and EBVs of beef bulls |
M.E. Davis 46-76 |
| Predicting maternal breeding values |
J.R. Fletcher 47-76 |
| Selection and concurrent inbreeding in simulated beef herds |
M.E. Davis |
| Optimal replacement rates for genetic improvement in beef cattle |
R.M. Bourdon |
| Simulated effects of genotype on beef production efficiency |
R.M. Bourdon |
| Relationship between direct and maternal effects on growth in Herefords |
W. Hohenboken |
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| PRODUCTION EFFECTS |
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| Effect of age of dam on Weaning weight and Yearling weight |
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| The effect of season of birth of calf on Weaning weights and cow production |
D.L. Morrow 48-67 |
| Factors affecting beef cow productivity |
W.L. Mangus 46-65 |
| Perinatal effects on Weaning weight of calf and rebreeding of dam |
J.M. Childears 70 |
| Creep feeding bull calves on oak brush range |
A.H. Denham, W.A. Confer 74 |
| Effects of early weaning v/s normal weaning on first-calf heifer production |
W.L. Mangus 72-73 |
| Effects of creep feeding bull calves on Dam MPPA values |
P.G. Ochoa 69-73 |
| The effects of sex, age of dam and line of breeding on Birth weight |
R.P. Posegate 68, 70-79 |
| Feasibility of delayed weaning |
W.C. Asbury 84 |
| Effect of time of weighing on Birth weight |
J. Walck, J.A. Vicklund 84 |
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| REPRODUCTION-RELATED |
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| Factors associated with calving difficulty |
J.S. Brinks and J.E. Olson 51-68 |
| Milk production in first calf Hereford heifers |
D. Abadia 64-66 |
| P.T. Fagerlin 72-73 |
| Embryo loss in beef cows |
W.G. Hays 72-73 |
| Breeding by hand-mating v/s AI in synchronization of estrus program with beef heifers |
J.E. Pexton 76 |
| A comparison of three methods, of assessing sex-drive in yearling bulls |
P.J. Chenoweth 76 |
| Sex drive in beef bulls in relation to social dominance, performance test results and seminal vesicle size |
A.G. Ologun, P.J. Chenoweth and M.E. Davis 77 |
| Comparison of Alfaprostol plus Norgestomet to Syncro-mate B for estrus synchronization |
L.N. Brown 84 |
| Effectiveness of Norgestomet-Alfaprostol or Syncro-Mate B in synchronizing estrus in beef cows |
M.E. King 86 |
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| MICELLANEOUS |
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| Research bulls tested on commercial ranch |
C.R. Benson 70 |
| Ocular lesions and cancer eye in Hereford cattle |
W.C. Russell 69-73 |
| Genetic aspects of hoof growth in beef cattle |
J.S. Brinks, M.E. Davis 78 |
| Methionine hydroxy analog fed to beef cows |
A.H. Denham, W. L. Mangus 78 |
| Performance of SJBRC Hereford bulls in AHA National sire evaluation program |
K.L. Long |
| Genetic aspects of ocular pigmentation in Hereford cattle |
J.C. Pounds 79 |
| The influence of stocking rate on animal performance |
L.E. Bartel, A.H. Denham and L.R. Rittenhouse 77-83 |
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| CARCASS |
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| Comparison of bull and heifer carcasses |
Glen Richardson 62-64 |
| Progeny test result for feedlot gain and carcass traits |
A.C. Linton 66-69 |
| Post weaning growth and carcass performance of station lines |
C.R. Benson 61-71 |