Held July 16-22, 1986
Lincoln, Nebraska

Organized under The International Committee for World Congresses on Genetics Applied to Livestock Production by The Meat Animal Research Center, USDA-ARS, Clay Center, Nebraska, and The Department of Animal Science, University of Nebraska-Lincoln

With collaboration of The American Society of Animal Science, American Poultry Science Association, and the American Dairy Science Association

Edited by G. E. Dickerson & R. K. Johnson

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1986

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BODY WEIGHT OF HORNE -VS- POLLED-SIRED AWASSI LAMBS, J. E. Alkass, A. A. Alrawi, A. H. Al-Hillali, and H. M. A. Al-Tayy

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GENETIC PARAMETERS FOR GESTATIOB LENGTH, BIRTH DATE AND TIME TO FIRST OBSERVED ESTRUS IB BEEF CATTLE, Sara Melin Azzam and M. K. Nielsen

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Heterosis on Body Weights in Crosses Among Brahman, Santa Gertrudis and Cheju Native Cattle, D. H. Baik and D. C. Kim

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Evaluation and Utilization of Breed Resources - Sheep and Goats, R. L. Baker

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OPTIMIZATION OF A SELECTION SCHEME FOR MILK COMPOSITION AND YIELD IN MILKING EWES : Example of the Lacaune Breed, F. Barillet, J. M. Elsen, and M. Roussely

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Embryo Transfer: Economic Implications for the Dairy Industry, J. S. Barr, D. C. Huffman, and R. A. Godke

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Economic Evaluation of Breeding Objectives for Sheep and Goats: Practical Considerations and Examples, G. E. Bradford and H. H. Meyer

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Calving Difficulty in Rubia Gallega Breed and its Genetic Improvement, J. Canon, M. Vallejo, and S. Dunner

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Breeding Programmes for Multiple Purpose Breeds in Uruguay, R. C. Cardellino and R. W. Ponzoni

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Male Heterosis Effect on Lamb Production Traits of the Ewe, T. S. Ch'ang and R. Evans

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Breeding Improvement of Swamp Buffalo, Charan Chantalakhana

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EVALUATION OF INDUSTRY BREEDING PROGRAMS FOR SHEEP AND GOATS INTRODUCTION AND OVERVIEW, J. N. Clarke

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Breeding Beef Germ Plasm Composites to Fit Special Environments, Gary Conley

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Comparison of Reproduction Ability of the So Called "World" Fertile Breed of Sheep in Large and Small Concentrations, Bora Cumlivski

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REPRODUCTION ABILITY OF RECIPROCAL CROSSBREED Fl GENERATION BY ,t· SHEEP OF MUTTON MERINO OF GERMAN TYPE AND BY RAHS OF THE BREED KENT /ROMNEY MARSH, Bora Cumlivski

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Genetic Diversity Among Cattle Breeds and Its Use to Increase Beef Production Efficiency in a Temperate Environment, Larry V. Cundiff, Keith E. Gregory, Robert M. Koch, and Gordon E. Dickerson

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Characterization of Milk Constituents of Bos Taurus and Bos Indicus × Bos Taurus Breed Types, Donald R. Daley, Anne McCuskey, and Curtis M. Bailey

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Buffalo for Meat Production, Giovanni de Fanciscis

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Genetic Engineering of Livestock Improvement, Gordon E. Dickerson

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CRITERIA FOR EVALUATING A SELECTION SCRENE: SOME PROPOSALS, J. M. Elsen, L. Bodin, and G. Ricordeau

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Preliminary Results on Fertility, Prolificacy, Lamb Production, and Carcass Traits of Romanov Sheep in Canada, Mohamed Hamed Fahmy

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FEED INTAKE OF DAIRY COWS AS AN ECONOMIC SELECTION TRAIT, Hans O. Gravert and Klaus Pabst

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HETEROSIS FOR PREWEANING TRAITS IN DEVON-HEREFORD CROSSES UNDER TEMPERATE RANGE CONDITIONS, A. L. Gyles, W. H. Upton, K. Hammond, J. M. Thompson, and B. Tier

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Evaluation of Beef Cattle Industry Breeding Programs, Keith Hammond

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Breeding Objectives and Selection Traits for Extensive Beef Cattle Production in the Tropics, D. J. S. Hetzel and G. W. Seifert

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COSTS AND BENEFITS OF BREED UTILIZATION STRATEGIES IN SHEEP, William D. Hohenboken

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Crossbreeding of Cattle in Sri Lanka, E. F. A. Jalatge

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ECONOMIC EVALUATION OF BREEDING OBJECTIVES IN SHEEP AND GOATS - GENERAL CONSIDERATIONS, J. W. James

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Evaluation of Beef Cattle Industry Breeding Programs: Breeders and Breed Associations, Robert M. Koch, James B. Gibb, and James A. Gosey

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Empirical Validation of the Dominance Model for Beef Cattle, D. D. Kress, D. E. Doornbos, and D. C. Anderson

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Genetic Improvement for Milk and Meat Production in the Tropics, N. Künzi and W. Kropf

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PERFORMANCE RECORDING FOR MERINO SHEEP IN AUSTRALIA (WOOLPLAN), R. P. Lewer, R. W. Ponzoni, P. D. Morgan, and D. S. Vanrenen

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Evaluation of Crossbreeding Systems for Preweaning Traits in Beef Cattle, M. D. Macneil, L. V. Cundiff, K. E. Gregory, and University of Nebraska-Lincoln

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Economic Evaluation of Breeding Objectives for Milk and Beef Production in Tropical Environments, F. E. Madalena

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Genetic Parameters for Subjective Milking Speed Scores, K. Meyer and E. B. Burnside

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Economic Evaluation of Breeding Objectives for Beef Cattle, C. A. Morris

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Selection Applied in the Angus Breeding Scheme of the New Zealand Land Development and Management Corporation, G. B. Nicoll

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EVALUATION OF INTER-FLOCK GENETIC IMPROVEMENT PROGRAMS FOR SHEEP AND GOATS, G. B. Nicoll, L. Bodin, and J. V. Jonmundson

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Economic Evaluation of Breeding Objectives for Milk and Beef Production in Temperate Zones, E. Niebel

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Feed Intake Specifications in Defining Breeding Objectives, D. R. Notter

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Economic Evaluation of Breeding Objectives in Dairy Cattle. Intensive Specialized Milk Production in Temerate Zones., R. E. Pearson

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EVALUATION OF INDUSTRY BREEDING PROGRAMS FOR DAIRY CATTLE MILK AND MEAT PRODUCTION, Franz Pirchner

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Economic Evaluation of Breeding Objectives in Sheep and Goats- Summary and Commentary, R. W. Ponzoni

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GENETIC VARIABILITY AND SIRE X MATING SYSTEM INTERACTION FOR MILK YIELD IN HOLSTEIN-SAHIWAL CROSSES, V. P. Rao and V. K. Taneja

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Evaluation of Nelore, Canchim, Santa Gertrudis, Holstein, Brown Swiss and Caracu as Sire Breeds in Matings with Nelore Cows. Effects on Progeny Growth, Carcass Traits and Crossbred Productivity, A. G. Razook, P. R. Leme, I. U. Packer, A. Luchiari Filho, R. F. Nordos, J. B. Trovo, C. N. Z. Capelozza, F. L. Pires, J. Nascimento, C. Barbosa, J. L. B. Coutinho, and W. J. Oliveira

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GENETIC TREND IN MILK YIELD OF EXOTIC CATTLE IN INDIA, D. K. Sadana and V. N. Tripathi

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GENETIC DIVERGENCE IN COMPONENT STRAINS OF KARAN-FRIES CATTLE, R. K. Sethi and M. Gurnani

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Breed Use and Crossbreeding in Goat Production, Maurice Shelton

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ECONOMIC SELECTION INDICES FOR LEAN MEAT PRODUCTION IN SHEEP, G. Simm

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BLOOD TYPING BEEFALO CATTLE, C. J. Stormont, B. G. Morris, Y. Suzuki, and J. Dodd

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ESTIMATION OF GENETIC RELATIONSHIPS AMONG MILK RECORDS FOR FIRST THREE LACTATIONS USING REML FOR AN ANIMAL MODEL, H. H. Swalve and L. D. Van Vleck

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MILK AND BEEF PRODUCTION IN TROPICAL ENVIRONMENTS, V. K. Taneja and P. N. Bhat

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Development of a New Synthetic Prolific Kine of Sheep (INRA 401), L. Tchamitchian, C. Lefevre, C. Brunel, B. Bibe, and G. Ricordeau

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Evaluation and Utilization of Tropical Breeds for Efficient Beef Production in the Tropics: Challenges and Opportunities, Assefaw Tewolde

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GENETIC VARIABILITY AMONG CATTLE BREEDS FOR BEEF PRODUCTION, R. B. Thiessen and C. S. Taylor

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Comparison of Five Dam Breeds Under Two Nutritional Environments, C. E. Thompson, S. G. Woods, and S. E. Meadows

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Evaluation of Dairy Cattle Breeding Programs: Specialized Milk Production, L. D. Van Vleck

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Evaluation of Straight- and Crossbreeding in Beef Cattle in the R.S.A., H. A. W. Venter, J. G. E. Van Zyl, and R. J. Coertze

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GENETIC PREDICTION FOR BEEF IN UNITED STATES, R. L. Willham

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IMPACT OF INDUSTRY STRUCTURE, INTENSITY OF PRODUCTION and RESOURCE CONSTRAINTS ON RESEARCH BREEDING OBJECTIVES, J. W. Wilton

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A PRELIMINARY COMPARISON OF LATER LACTATION YIELDS OF DIFFERENT FRIESIAN STRAINS IN POLAND, A. Zarnecki and M. Stolzman

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Milk and Beef Production in Temperate Climates, A. Zarnecki and M. Stolzman