Tags

Type your tag names separated by a space and hit enter

Water and electrolyte intake and output in conditioned Thoroughbred horses transported by road.
Equine Vet J. 1998 Jul; 30(4):316-23.EV

Abstract

The objectives of this trial were to measure the water and electrolyte intake and loss, of horses during road transportation in relatively hot environmental conditions. Six mature, Thoroughbred horses in full training were used in a balanced crossover design. The horses were conditioned on a treadmill for 6 weeks before the start of the trial in order to simulate the type of horse that is transported most often over long distances in South Africa. The horses were assigned randomly to one of 2 treatment groups. On a particular day 3 horses were transported, while the other horses served as controls. One month was allowed before the crossover. Horses in the 'transport group' were transported by tarred road in a circular route over 600 km. This allowed the standardisation of measurements and use of the same instruments in both groups. Data were collected in each treatment group during transportation that lasted for 8 h (transport phase) and for 6 h after travelling (recovery phase). The following data were collected or calculated: Water and electrolyte (sodium, potassium and chloride) intake and output, changes in bodyweight and feed consumption. Although water was always available, the transport group failed to drink during transit. Based on bodyweight, the transported horses were 3% dehydrated at the end of transit. This bodyweight loss was corrected within one hour after their return due to a significantly higher water intake compared to control horses. The feed intake in the transported horses was unaffected during travelling, but was decreased for 6 h following transportation. Urinary water loss was similar in the 2 treatment groups during and following transportation. The faecal water loss decreased in the transported horses and remained lower than the control group for 6 h following transit. Total sodium and chloride intake were unaffected, while the potassium intake was decreased during transportation. Sodium and potassium loss via the faeces and urine during the transport period were similar in the 2 treatment groups, whereas potassium output in the transport group was significantly decreased during the recovery period of the study. It was concluded that transportation by road affected the water and electrolyte balance of conditioned horses for a period up to 6 h after travelling.

Authors+Show Affiliations

Department of Medicine, Faculty of Veterinary Science, University of Pretoria, Onderstepoort, South Africa.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Clinical Trial
Journal Article
Randomized Controlled Trial
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

9705115

Citation

van den Berg, J S., et al. "Water and Electrolyte Intake and Output in Conditioned Thoroughbred Horses Transported By Road." Equine Veterinary Journal, vol. 30, no. 4, 1998, pp. 316-23.
van den Berg JS, Guthrie AJ, Meintjes RA, et al. Water and electrolyte intake and output in conditioned Thoroughbred horses transported by road. Equine Vet J. 1998;30(4):316-23.
van den Berg, J. S., Guthrie, A. J., Meintjes, R. A., Nurton, J. P., Adamson, D. A., Travers, C. W., Lund, R. J., & Mostert, H. J. (1998). Water and electrolyte intake and output in conditioned Thoroughbred horses transported by road. Equine Veterinary Journal, 30(4), 316-23.
van den Berg JS, et al. Water and Electrolyte Intake and Output in Conditioned Thoroughbred Horses Transported By Road. Equine Vet J. 1998;30(4):316-23. PubMed PMID: 9705115.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Water and electrolyte intake and output in conditioned Thoroughbred horses transported by road. AU - van den Berg,J S, AU - Guthrie,A J, AU - Meintjes,R A, AU - Nurton,J P, AU - Adamson,D A, AU - Travers,C W, AU - Lund,R J, AU - Mostert,H J, PY - 1998/8/15/pubmed PY - 1998/8/15/medline PY - 1998/8/15/entrez SP - 316 EP - 23 JF - Equine veterinary journal JO - Equine Vet. J. VL - 30 IS - 4 N2 - The objectives of this trial were to measure the water and electrolyte intake and loss, of horses during road transportation in relatively hot environmental conditions. Six mature, Thoroughbred horses in full training were used in a balanced crossover design. The horses were conditioned on a treadmill for 6 weeks before the start of the trial in order to simulate the type of horse that is transported most often over long distances in South Africa. The horses were assigned randomly to one of 2 treatment groups. On a particular day 3 horses were transported, while the other horses served as controls. One month was allowed before the crossover. Horses in the 'transport group' were transported by tarred road in a circular route over 600 km. This allowed the standardisation of measurements and use of the same instruments in both groups. Data were collected in each treatment group during transportation that lasted for 8 h (transport phase) and for 6 h after travelling (recovery phase). The following data were collected or calculated: Water and electrolyte (sodium, potassium and chloride) intake and output, changes in bodyweight and feed consumption. Although water was always available, the transport group failed to drink during transit. Based on bodyweight, the transported horses were 3% dehydrated at the end of transit. This bodyweight loss was corrected within one hour after their return due to a significantly higher water intake compared to control horses. The feed intake in the transported horses was unaffected during travelling, but was decreased for 6 h following transportation. Urinary water loss was similar in the 2 treatment groups during and following transportation. The faecal water loss decreased in the transported horses and remained lower than the control group for 6 h following transit. Total sodium and chloride intake were unaffected, while the potassium intake was decreased during transportation. Sodium and potassium loss via the faeces and urine during the transport period were similar in the 2 treatment groups, whereas potassium output in the transport group was significantly decreased during the recovery period of the study. It was concluded that transportation by road affected the water and electrolyte balance of conditioned horses for a period up to 6 h after travelling. SN - 0425-1644 UR - https://www.unboundmedicine.com/medline/citation/9705115/Water_and_electrolyte_intake_and_output_in_conditioned_Thoroughbred_horses_transported_by_road_ L2 - https://onlinelibrary.wiley.com/resolve/openurl?genre=article&sid=nlm:pubmed&issn=0425-1644&date=1998&volume=30&issue=4&spage=316 DB - PRIME DP - Unbound Medicine ER -