Skip to main content
×
Home
    • Aa
    • Aa
  • Get access
    Check if you have access via personal or institutional login
  • Cited by 24
  • Cited by
    This article has been cited by the following publications. This list is generated based on data provided by CrossRef.

    Johnson, Jay S. Abuajamieh, Mohannad Victoria Sanz Fernandez, M. Seibert, Jacob T. Stoakes, Sara K. Keating, Aileen F. Ross, Jason W. Selsby, Joshua T. Rhoads, Robert P. and Baumgard, Lance H. 2015. The impact of in utero heat stress and nutrient restriction on progeny body composition. Journal of Thermal Biology, Vol. 53, p. 143.


    Karimi, M.T. Ghorbani, G.R. Kargar, S. and Drackley, J.K. 2015. Late-gestation heat stress abatement on performance and behavior of Holstein dairy cows. Journal of Dairy Science, Vol. 98, Issue. 10, p. 6865.


    Kamal, M.M. Van Eetvelde, M. Depreester, E. Hostens, M. Vandaele, L. and Opsomer, G. 2014. Age at calving in heifers and level of milk production during gestation in cows are associated with the birth size of Holstein calves. Journal of Dairy Science, Vol. 97, Issue. 9, p. 5448.


    Monteiro, A.P.A. Tao, S. Thompson, I.M. and Dahl, G.E. 2014. Effect of heat stress during late gestation on immune function and growth performance of calves: Isolation of altered colostral and calf factors. Journal of Dairy Science, Vol. 97, Issue. 10, p. 6426.


    Fiems, Leo O. 2012. Double Muscling in Cattle: Genes, Husbandry, Carcasses and Meat. Animals, Vol. 2, Issue. 4, p. 472.


    Long, N.M. Collier, R.J. and Smith, J.F. 2012. Short communication: Comparison of 2 methods of assessing calf birth weights in dairy calves. Journal of Dairy Science, Vol. 95, Issue. 12, p. 7206.


    Meyer, Allison M. Caton, Joel S. Hess, Bret W. Ford, Stephen P. and Reynolds, Lawrence P. 2012. Feed Efficiency in the Beef Industry.


    Tao, S. Monteiro, A.P.A. Thompson, I.M. Hayen, M.J. and Dahl, G.E. 2012. Effect of late-gestation maternal heat stress on growth and immune function of dairy calves. Journal of Dairy Science, Vol. 95, Issue. 12, p. 7128.


    Yates, Dustin T. Chen, Xiaochuan and Limesand, Sean W. 2012. Environmental Physiology of Livestock.


    Greenwood, P. L. and Cafe, L. M. 2007. Prenatal and pre-weaning growth and nutrition of cattle: long-term consequences for beef production. animal, Vol. 1, Issue. 09,


    Cheng, Z. B. Li, D. F. Xing, J. J. Guo, X. Y. and Li, Z. J. 2006. Oral administration of spermine advances intestinal maturation in sucking piglets. Animal Science, Vol. 82, Issue. 05, p. 621.


    Reynolds, Lawrence P. Caton, Joel S. Redmer, Dale A. Grazul-Bilska, Anna T. Vonnahme, Kimberly A. Borowicz, Pawel P. Luther, Justin S. Wallace, Jacqueline M. Wu, Guoyao and Spencer, Thomas E. 2006. Evidence for altered placental blood flow and vascularity in compromised pregnancies. The Journal of Physiology, Vol. 572, Issue. 1, p. 51.


    Reynolds, L.P. Borowicz, P.P. Vonnahme, K.A. Johnson, M.L. Grazul-Bilska, A.T. Wallace, J.M. Caton, J.S. and Redmer, D.A. 2005. Animal models of placental angiogenesis. Placenta, Vol. 26, Issue. 10, p. 689.


    Reynolds, Lawrence P. Borowicz, Pawel P. Vonnahme, Kimberly A. Johnson, Mary Lynn Grazul-Bilska, Anna T. Redmer, Dale A. and Caton, Joel S. 2005. Placental angiogenesis in sheep models of compromised pregnancy. The Journal of Physiology, Vol. 565, Issue. 1, p. 43.


    West, J.W. 2003. Effects of Heat-Stress on Production in Dairy Cattle. Journal of Dairy Science, Vol. 86, Issue. 6, p. 2131.


    Swanson, K.C Caton, J.S Redmer, D.A Burke, V.I and Reynolds, L.P 2000. Influence of undegraded intake protein on intake, digestion, serum hormones and metabolites, and nitrogen balance in sheep. Small Ruminant Research, Vol. 35, Issue. 3, p. 225.


    Swanson, K.C. Reynolds, L.P. and Caton, J.S. 2000. Influence of dietary intake and lasalocid on serum hormones and metabolites and visceral organ growth and morphology in wether lambs. Small Ruminant Research, Vol. 35, Issue. 3, p. 235.


    Lublin, Avishay and Wolfenson, David 1996. Lactation and pregnancy effects on blood flow to mammary and reproductive systems in heat-stressed rabbits. Comparative Biochemistry and Physiology Part A: Physiology, Vol. 115, Issue. 4, p. 277.


    Carstens, Gordon E. 1994. Cold Thermoregulation in the Newborn Calf. Veterinary Clinics of North America: Food Animal Practice, Vol. 10, Issue. 1, p. 69.


    Dziuk, P.J. 1992. Embryonic development and fetal growth. Animal Reproduction Science, Vol. 28, Issue. 1-4, p. 299.


    ×

Effects of chronic environmental heat stress on blood flow and nutrient uptake of the gravid bovine uterus and foetus

  • L. P. Reynolds (a1), C. L. Ferrell (a1), J. A. Nienaber (a1) and S. P. Ford (a2)
  • DOI: http://dx.doi.org/10.1017/S002185960004394X
  • Published online: 01 March 2009
Abstract
Summary

To evaluate the effects of chronic environmental heat stress during mid-gestation on gravid uterine and foetal metabolism, mature Hereford cows were assigned to control (n = 8) or heat stress (n = 5) treatments beginning on day 100 of gestation. Uterine and umbilical blood flows were estimated by the steady-state diffusion procedure on day 169 ± 4 of gestation. Oxygen (O2), glucose, lactate, α-amino nitrogen and urea nitrogen concentrations were determined for uterine and umbilical blood samples collected during this procedure. Foetuses and foetal fluids were collected on day 174±4.

Uterine and umbilical blood flows were reduced and foetal weight also was less for heat-stressed than for control cows. In addition, foetal liver weight as a proportion of foetal weight and total foetal liver RNA and protein were less for heat-stressed cows. Uterine and umbilical arterial–venous concentration differences in metabolites were similar between the two groups. Uterine, foetal and utero-placental uptake or secretion rates of the metabolites measured in this study were reduced in the heat-stressed cows, primarily because of differences in blood flow. Thus, chronic heat stress during mid-gestation had an adverse effect on foetal development resulting, at least in part, from decreased uterine and umbilical blood flows, which led to a reduction in uterine, utero-placental and foetal nutrient uptake or secretion rates.

Copyright
Linked references
Hide All

This list contains references from the content that can be linked to their source. For a full set of references and notes please see the PDF or HTML where available.

G. Alexander (1964). Studies on the placenta of the sheep (Ovia ariesL.). Effect of surgical reduction in the number of caruncles. Journal of Reproduction and Fertility 7, 307322.

C. S. Apstein , E. Puchner & N. Brachfeld (1970). Improved automated lactate determination. Analytical Biochemistry 38, 2034.

G. K. Benson & L. R. Morris (1971). Foetal growth and lactation in rats exposed to high temperatures during pregnancy. Journal of Reproduction and Fertility 27, 369384.

R. S. Comline & M. Silver (1976). Some aspects of foetal and uteroplacental metabolism in cows with indwelling umbilical and uterine vascular catheters. Journal of Physiology 260, 571586.

J. R. S. Hales (1973). Effects of exposure to hot environments on the regional distribution of blood flow and on cardiorespiratory function in sheep. Pftügers Archiv-European Journal of Physiology 344, 133148.

H. Vorherr (1982). Factors influencing fetal growth. American Journal of Obstetrics and Gynecology 142, 577588.

Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

The Journal of Agricultural Science
  • ISSN: 0021-8596
  • EISSN: 1469-5146
  • URL: /core/journals/journal-of-agricultural-science
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×