The effect of lysine intake on energy partitioning and utilization in growing pigs

Archives of Animal Nutrition
Judith Ringel, Andreas Susenbeth

Abstract

An experiment utilizing 12 castrated male pigs within a body weight range of 23 - 147 kg was conducted to ascertain whether the alteration of protein quality by varying the level of lysine intake is influencing total energy retention, heat production and therewith efficiency of energy utilization for growth. The animals were allotted to two treatments of a constant medium (11.5 g/d) or high lysine intake (13.5 g/d) level on the basis of an isonitrogenous diet at an energy intake level of 1.3 MJ ME/kg BW0.75. Representing a tool for determining body composition, at target body weights of 35, 55, 80, 115 and 145 kg measurements of deuterium dilution space were undertaken. Protein and lipid accretion were calculated by difference, assuming accretion to contain 23.8 and 39.0 kJ/g, respectively. The results show a significant effect (p < 0.05) between treatment groups for the values of energy retained in protein, thus ensuring the intended alteration by protein quality. Furthermore total energy retention, heat production (difference between ME intake and energy retention) and therewith energy utilization demonstrate independence from the composition of body weight (BW) gain. These observations confirm earlier results, but however, s...Continue Reading

References

Nov 15, 1978·The Biochemical Journal·K MaruyamaR W Swick
May 1, 1990·The British Journal of Nutrition·D N SalterR J Elliott
Jun 1, 1996·The British Journal of Nutrition·S TesseraudA M Chagneau
Feb 1, 1997·Klinische Monatsblätter für Augenheilkunde·M BraunG O Naumann
Apr 4, 2000·Physiological Reviews·K J Ellis

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