The response of gilt body composition to low and high dietary protein during lactation

摘要

Lactating sows will respond to increasing dietary lysine during lactation providing that energy does not become limiting, in a recent experiment Sauber et RAID. (1998) demonstrated that fat genotypes readily mobilised fat to make up for inadequate nutrient intake in lactation whereas lean genotypes mobilised protein. The aim of this experiment was to investigate whether fat versus lean animals of similar genetic merit were equally able to utilise diets varying in lysine content. The animals used in this experiment were of a high lean genotype and had been allowed to express their natural variation for fatness during rearing and gestation.