Effects of rumen-protected methionine on plasma amino acid concentrations during a period of weight loss for late gestating beef heifers

Amino Acids
R C WatermanM K Petersen

Abstract

This study determined changes in plasma amino acid concentration in late-gestating (beginning 58 ± 1.02 days prior to calving), primiparous, winter-grazing range heifers receiving wheat middling-based supplement without (CON) or with rumen-protected methionine (MET) to provide 15 g DL-MET each day. Plasma was collected on days -2 and 0 (start of MET supplementation just prior to individually receiving supplement at 0700 hours). Plasma was sampled again on days 40, 42 and 44 prior to supplementation at 0700 and 1100 hours (4 h after receiving daily supplement). Data were analyzed with cow as the experimental unit. Continuous variables were analyzed by the main effects of treatment, date, or time and their interaction when appropriate. Comparable BW (P = 0.32) and BCS (P = 0.83) over the 44-day metabolism trial were found between both CON- and MET-fed heifers. MET-supplemented heifers had greater (P < 0.01) plasma concentrations of methionine indicating that the rumen-protection technology successfully delivered methionine to the small intestine. Supplementation with rumen-protected DL-MET caused a significant supplement × date interaction for glutamine (P = 0.03), glycine (P = 0.02), methionine (P < 0.01), and serine (P = 0.05)....Continue Reading

References

Mar 1, 1978·Journal of Animal Science·C R Richardson, E E Hatfield
Jan 1, 1991·Biology of the Neonate·E A LiechtyJ A Lemons
Mar 1, 1989·The British Journal of Nutrition·D J Cottle, W Velle
Jan 1, 1987·Australian Journal of Biological Sciences·G J Faichney, G A White
Feb 1, 1973·Proceedings of the Society for Experimental Biology and Medicine·L A GilJ F Easley
Apr 1, 1995·The American Journal of Physiology·P R VaughnG Meschia
Dec 1, 1995·Placenta·R A Ehrhardt, A W Bell
Apr 1, 1996·Journal of Dairy Science·T R OvertonJ H Clark
Oct 1, 1996·Journal of Animal Science·C G CampbellG St-Jean
Jan 1, 1997·Journal of Animal Science·C G CampbellG St-Jean
Apr 1, 1997·Journal of Animal Science·C G CampbellR T Brandt
Feb 12, 1998·The American Journal of Physiology·M ChungF C Battaglia
Jun 13, 1998·The British Journal of Nutrition·L ClarkeM E Symonds
Nov 14, 1998·Journal of Animal Science·E S VanzantE C Titgemeyer
Aug 24, 1999·Biology of Reproduction·M JóźwikF C Battaglia
Jul 25, 2000·Journal of Animal Science·R H Greenwood, E C Titgemeyer
Sep 9, 2004·Reproductive Biology and Endocrinology : RB&E·Timothy R H RegnaultRex J Scaramuzzi
May 17, 2006·The Journal of Nutrition·William D ReesChristopher A Maloney
Oct 25, 2006·Journal of Animal Science·R C WatermanM K Petersen
Jul 5, 2007·Journal of Animal Science·R C WatermanM D MacNeil

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Citations

Sep 21, 2013·Journal of Chemical Information and Modeling·Chaitanya A K KoppisettyPer-Georg Nyholm

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