Effect of dietary near ideal amino acid profile on heat production of lactating sows exposed to thermal neutral and heat stress conditions

Journal of Animal Science and Biotechnology
S ZhangN L Trottier

Abstract

Reduced protein diet manifested potential to mitigate heat production based on the concept of ideal amino acid profile. The hypothesis of this study was that lactating sows fed a low crude protein (LCP) diet with supplemental amino acid produce less heat compared to those fed a high crude protein (HCP) diet under both thermal neutral (TN) and heat stress (HS) conditions. Thirty-two lactating sows were allotted to HCP (193 g CP/kg) and LCP (140 g CP/kg) diets under thermal neutral (TN, 21 ± 1.5 °C) or cycling heat stress (HS, 32 ± 1.5 °C daytime and 24 ± 1.5 °C nighttime) conditions. Diets contained 0.90% SID lysine and 10.8 MJ/kg net energy. Positive pressure indirect calorimeters were used to measure gas exchange in individual sows with litters, and individual piglets on days 4, 8, 14 and 18. Sow and litter weights were recorded on days 1, 10 and 21. Sow total heat production (THP) was calculated by subtracting litter THP from sow + litter THP based on BW0.75. Sow BW and body protein (BP) loss was greater for LCP diet compared to HCP diet in peak lactation (P < 0.05 and P < 0.01, respectively) and throughout the entire lactation period (P < 0.05 and P = 0.056, respectively) under HS conditions. Heat-stressed sows fed HCP diet ...Continue Reading

References

Jan 1, 1991·Comparative Biochemistry and Physiology. A, Comparative Physiology·D Rinaldo, J Le Dividich
Jun 1, 1980·Metabolism: Clinical and Experimental·F G CollinsJ L Skibba
Jan 1, 1996·Journal of Animal Science·M S TonerC S Atwood
May 26, 2001·Journal of Animal Science·L Le BellegoJ Noblet
Jul 4, 2001·The British Journal of Nutrition·A CollinJ Noblet
May 1, 2008·The British Journal of Nutrition·Etienne LabussièreJean Noblet
Jan 29, 2010·Journal of Dairy Science·J B WheelockL H Baumgard
Feb 7, 2012·Journal of Animal Science·A V HansenP K Theil
Jul 1, 2010·Animal : an International Journal of Animal Bioscience·U BernabucciA Nardone
May 9, 2012·Animal : an International Journal of Animal Bioscience·D RenaudeauR J Collier
Mar 7, 2013·Journal of Animal Science·S C PearceL H Baumgard
Oct 10, 2013·International Journal of Hyperthermia : the Official Journal of European Society for Hyperthermic Oncology, North American Hyperthermia Group·Jay S JohnsonLance H Baumgard
Jan 9, 2015·Journal of Animal Science·J S JohnsonL H Baumgard
Dec 8, 2015·Journal of Animal Science·L HuberN L Trottier
May 12, 2017·Journal of Animal Science and Biotechnology·Zhongchao LiDefa Li
Mar 23, 2019·Translational Animal Science·Kouassi R KpodoJay S Johnson

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BETA
infrared spectroscopy

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