HOME HELP CONTACT US SUBSCRIPTIONS ARCHIVE SEARCH TABLE OF CONTENTS		QUICK SEARCH:   [advanced] Author: Keyword(s): Year:  Vol:  Page:

This Article Full Text Full Text (PDF) Alert me when this article is cited Alert me if a correction is posted Services Similar articles in this journal Similar articles in ISI Web of Science Similar articles in PubMed Alert me to new issues of the journal Download to citation manager Citing Articles Citing Articles via HighWire Citing Articles via ISI Web of Science (1) Citing Articles via Google Scholar Google Scholar Articles by Katoh, K Articles by Obara, Y Search for Related Content PubMed PubMed Citation Articles by Katoh, K Articles by Obara, Y

Department of Animal Physiology, Graduate School of Agricultural Science, Tohoku University, Amamiyamachi, Aoba-ku, Sendai 981-8555, Japan
¹ Feed Functionality Research Laboratory, Meiji Feed Co., Kashima, Ibaraki 314-0103, Japan

(Requests for offprints should be addressed to K Katoh; Email:kato{at}bios.tohoku.ac.jp)

Postprandial changes in plasma concentrations of GH, insulin, IGF-I, leptin and metabolites were compared between young Holstein bull calves fed with milk alone (control group) and with milk+5'-uridylic acid (UMP) (UMP group). UMP (2 g/day) was given with milk at 0830 h and 1530 h for 11 days from the 4th to the 14th day after birth. The perirenal fat weight was significantly lower in the UMP group than in the control group, but there was no significant difference in the weights of the liver, spleen and heart between the groups. Basal GH concentrations in the UMP group were slightly higher, but the postprandial increase in plasma insulin level and the area under the curve for insulin in the UMP group were significantly lower than those in the control group. There was no significant difference in IGF-I levels between the groups. In addition, the postprandial glucose concentrations were lower in the UMP group as reflected by the insulin level, and nonesterified fatty acid concentrations were not different. In the muscle (M. longissimus thoracis) sampled at 14 days of age, the triacylglycerol (TAG) content was significantly greater but glycogen content was significantly lower in the UMP group than in the control group. From these results, we have concluded that feeding 5'-UMP at 2 g/day for 11 days significantly alters TAG accumulation in the body and plasma concentrations of GH and insulin in young bull calves.

This article has been cited by other articles:

				S. I. Kehoe, A. J. Heinrichs, C. R. Baumrucker, and D. L. Greger Effects of Nucleotide Supplementation in Milk Replacer on Small Intestinal Absorptive Capacity in Dairy Calves J Dairy Sci, July 1, 2008; 91(7): 2759 - 2770. [Abstract] [Full Text] [PDF]

				M. Takagi, T. Yonezawa, S. Haga, H. Shingu, Y. Kobayashi, T. Takahashi, Y. Ohtani, Y. Obara, and K. Katoh Changes of activity and mRNA expression of urea cycle enzymes in the liver of developing Holstein calves J Anim Sci, July 1, 2008; 86(7): 1526 - 1532. [Abstract] [Full Text] [PDF]