Effect of Nutritional Plane on Health and Performance in Dairy Calves after Experimental Infection with Cryptosporidium parvum

Authors

  • T. L. Ollivett Department of Clinical Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
  • D. V. Nydam Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
  • T. C. Linden Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
  • D. D. Bowman Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853
  • M. Van Amburgh Department of Animal Science, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY 14853

DOI:

https://doi.org/10.21423/aabppro20094299

Keywords:

energy requirements, neonatal, dairy calf, milk replacer, nutritional plane, conventional, C. parvum, protozoan, Cryptosporidium parvum

Abstract

Neonatal dairy calf maintenance energy requirements are approximately 1.6 Meal metabolizable energy (ME)/d at thermoneutral temperatures. Historically used milk replacer feeding regimens (e.g. 2 quarts ofreconstituted solids twice per day) provide approximately 2.2 Meal ME/d. Considering the abundance of environmental and pathogenic challenges faced by neonatal calves, these conventional feeding programs provide little energy reserves for maintaining body temperature, mounting immune responses, and growing at expected rates of 1.1 to 2.0 lb/d (0.5 to 0.9 kg/d). Cryptosporidium parvum, an enteric protozoan, is an almost ubiquitous infectious stressor of neonatal dairy calves. Infection by this organism is difficult to prevent and treat. As it is a zoonotic parasite, a few oocysts may infect and cause disease in naive people, and infections are a severe health risk in the immunocompromised. The objective of this study was to evaluate the effect of conventional nutritional plane versus a higher nutritional plane on the health and performance of dairy calves after experimental infection with C. parvum.

Downloads

Published

2009-09-10

Issue

Section

Research Summaries 1

Most read articles by the same author(s)

1 2 3 4 5 > >>