The Effect of Genetic Variance on Nutritional Requirements of Animals

Proceedings of a Symposium

Éditeur: National Academies Press
ISBN: 9780309023429
eISBN Pdf: 9780309540247
Lieu de publication: United States
Année de publication électronique: 1975
Mois : Janvier
Pages: 130
Langue: Anglais

The Effect of Genetic Variance on Nutritional Requirements of Animals
Copyright
Preface
Contents
Introduction
Genetic Variation in Nutrition of Cattle for Meat Production
- ABILITY TO DIGEST NUTRIENTS
- NUTRIENT REQUIREMENTS FOR MAINTENANCE
- SPECIFIC NUTRIENT REQUIREMENTS FOR NORMAL HEALTH AND PRODUCTIVITY
- SPECIFIC NUTRIENT REQUIREMENTS FOR OPTIMUM EFFICIENCY OF PRODUCTION
- METABOLIC PATHWAYS OF FEED UTILIZATION
- ABILITY TO CONSUME FEED
- FEED REQUIRED PER UNIT OF GAIN IN LIVE WEIGHT AND CARCASS COMPONENTS
- SUMMARY AND CONCLUSIONS
- Literature Cited
Genetic Variation in Nutrition of Dairy Cattle
- GENETIC DIFFERENCES IN DIRECT MEASURES OF EFFICIENCY
  - Breed Differences
  - Heritabilities
  - Crossbreeding
  - Sampling Parts of the Lactation to Estimate Total-Lactation Efficiency
- GENETIC DIFFERENCES IN CONSUMPTION
- CORRELATED RESPONSES
- GENOTYPE BY ENVIRONMENT INTERACTION
  - Designed Experiments Not Using Twins
  - Designed Experiments Using Twins
  - Genotype by Environment Interaction from Field Data
- RELATED CONSIDERATIONS
- Literature Cited
Genetic Variation in Nutritional Requirements of Poultry
- FACTORS INFLUENCING EFFICIENCY OF FEED UTILIZATION
  - Digestion and Absorption
  - Utilization of Metabolizable Energy
- VARIATIONS IN PROTEIN AND AMINO ACID REQUIREMENTS
  - Egg Production
- AMINO ACIDS
  - Arginine
  - Lysine
  - Methionine
- VARIATIONS IN VITAMIN REQUIREMENTS
  - Thiamin
  - Riboflavin
  - Nicotinic Acid
  - Vitamin D
  - Other Vitamins
- INORGANIC ELEMENTS
- WATER METABOLISM
- GENETIC VARIATION IN PHYSIOLOGICAL TRAITS RELATED TO NUTRITION
  - Discussion
- ACKNOWLEDGMENT
- Literature Cited
Genetic Variation in Nutrition of Sheep
- HERITABILITY OF FEED EFFICIENCY
- RELATIONS OF FEED EFFICIENCY TO OTHER TRAITS
- BODY COMPOSITION AND WEIGHT
- ENERGY REQUIREMENTS
- MINERAL REQUIREMENTS
- MILK PRODUCTION
- LAMB PRODUCTION
- WOOL PRODUCTION
- GENETIC-ENVIRONMENTAL INTERACTIONS
- BREED DIFFERENCES
- SUMMARY AND RECOMMENDATIONS
- Literature Cited
Genetic Variation in Nutritional Requirements of Swine
- BREEDS AND TYPE
- SEX
- PROTEIN
- PLANE OF NUTRITION OR ENERGY LEVEL AND MANAGEMENT SYSTEM
- HORMONES AND ENZYMES
- CONCLUSION
- Literature Cited