Muscle Hypertrophy of Genetic Origin and its use to Improve Beef Production: A Seminar in the CEC Programme of Coordination of Research on Beef Production held in Toulouse, France, June 1–12, 1980

Front Matter....Pages I-X
Front Matter....Pages 1-1
Research Activities on Hereditary Muscular Hypertrophy....Pages 3-20
Front Matter....Pages 21-21
General Survey of the Effect of Double Muscling on Cattle Performance....Pages 23-53
A Comparison of Normal and Heterozygous Animals for Double Muscling in British Breeds of Cattle....Pages 54-69
Discussion....Pages 70-73
Muscular Development and Energy Utilisation in Cattle: The Double Muscled as an Extreme or a Deviant Animal....Pages 74-87
Some Nutritional Particularities of Pig Breeds with High Muscle Development (Pietrain, Belgian Landrace)....Pages 88-104
Discussion....Pages 105-108
Front Matter....Pages 109-109
Carcase Composition and Muscle Structure in Hypertrophied Animals....Pages 111-133
Discussion....Pages 134-136
Beef Carcase Conformation and Some Biological Implications....Pages 137-146
Discussion....Pages 147-147
Relationship between Muscle Hypertrophy and the Composition of Skeletal Muscles....Pages 148-161
Discussion....Pages 162-163
The Effect of the Hypertrophied Type on Carcase Composition and Muscle Distribution in the Maine Anjou Breed....Pages 164-176
Discussion....Pages 177-177
Muscle and Adipose Tissue from Normal and Double Muscled Cattle: Collagen Types, Muscle Fibre Diameter, Fat Cell Size and Fatty Acid Composition and Organoleptic Properties....Pages 178-202
Discussion....Pages 203-204
The Effect of the Hypertrophied Type on Morpho-Anatomical Characteristics of the Perimysium in the Maine-Anjou Breed....Pages 205-218
Creatinine Variation in Transmission of Muscle Hypertrophy in Piemontese Cattle....Pages 219-235
Discussion....Pages 236-236
Front Matter....Pages 109-109
Creatine and Creatinine Levels in Plasma, Red Cells and Muscles as Characteristics of Double-Muscled Cattle....Pages 237-256
Discussion....Pages 257-257
Stereological Analyses of Hypertrophic Muscle Fibres....Pages 258-275
Discussion....Pages 276-277
Quantitative Histochemistry of Muscle Enlargement and Post Mortem Metabolism....Pages 278-305
Discussion....Pages 306-310
Comparative Study of Muscular Tissue of Normal and Double Muscled Maine-Anjou Bull Calves: Dna and Metabolism....Pages 311-326
Discussion....Pages 327-328
Biochemical and Histochemical Study of Skeletal Muscles in Four Breeds of Rabbit....Pages 329-340
Studies on the 7th Rib Cut in Double Muscled and Conventional Cattle. Anatomical, Histological and Biochemical Aspects....Pages 341-349
Endocrinological Studies on Double Muscled Cattle: LH, GH, Testosterone and Insulin Plasma Levels During the First Year of Life....Pages 350-367
Discussion....Pages 368-369
General Discussion....Pages 370-384
Front Matter....Pages 385-385
Present State of Knowledge About the Genetic Determination of Muscular Hypertrophy or the Double Muscled Trait in Cattle....Pages 387-428
Genetic Determination of Muscular Hypertrophy in the Pig....Pages 429-434
A Simulation Study of the Population Dynamics of the Double Muscled Gene with Selection for Heterozygote Advantage....Pages 435-436
Muscular Hypertrophy as a Racial Characteristic: The Case of the Belgian Blue Breed....Pages 437-449
A Note on the Recent History of Piemontese Cattle Surveying the Genetic Determination of Muscle Hypertrophy....Pages 450-459
Herd Structure of Pedigree Piedmont Cattle....Pages 460-470
Double Muscled Character in Spanish Breeds of Cattle....Pages 471-479
Front Matter....Pages 385-385
Advantages of Using Double Muscled Sires in Crossbreeding and the Selection of a Specialised Double Muscled Sire Line in France....Pages 480-536
Preliminary Results of a Selection Experiment for Muscle Hypertrophy in the Piétrain Breed....Pages 537-547
General Discussion....Pages 548-561
Front Matter....Pages 563-563
Analytical Study on Retail Cuts from the Double Muscled Animal....Pages 565-574
Analysis of Reproduction Problems in Double Muscled Females....Pages 575-584
Discussion....Pages 585-587
Production Systems with Double Muscled Belgian Blue Cattle....Pages 588-596
Characteristics of the Meat Production from Belgian White — Blue Cattle....Pages 597-607
Discussion....Pages 608-611
Muscular Hypertrophy and its Significance for Beef Production in the Netherlands....Pages 612-621
Discussion....Pages 622-623
The Possibilities of Exploiting Double Muscling of Cattle in UK Beef Production....Pages 624-636
Comparison of Sire Breeds Represented by Doubled Muscled and Normal Sires....Pages 637-643
Discussion....Pages 644-645
Front Matter....Pages 647-647
Final Conclusions and Perspectives....Pages 649-653
Back Matter....Pages 654-658