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Effect of transport on feeder calves.
Am J Vet Res. 1988 Feb; 49(2):178-83.AJ

Abstract

One hundred fifty feeder steers (mean body weight, 195 kg) were assigned to 1 of 3 transport groups and were deprived of feed and water (fasted) for 24 hours. Additionally, calves were transported on a commercial livestock trailer for 0 (control-fasted only), 12 (short haul), or 24 (long haul) hours. Blood samples were obtained from the jugular vein before calves were loaded on the transport vehicle and immediately after calves of the long-haul group returned to the research feedlot. Complete blood counts were performed and 32 mineral, enzyme, and biochemical constituents were measured. Calf morbidity, mortality, and average daily weight gain were evaluated during the next 56 days. Duration of transport did not affect average daily gain; however, calves of the short-haul group had significantly (P less than 0.05) higher morbidity and mortality than did those of the control and long-haul groups. In all groups, results of differential leukocyte counts were indicative of stress response. Significant (P less than 0.05) linear contrasts were observed between duration of transport and erythrocyte, leukocyte, segmented neutrophil, lymphocyte, and eosinophil counts and results of serum enzyme (alanine transaminase, hydroxybutyrate dehydrogenase, total lactate dehydrogenase [LD], and LD-1, LD-3, and LD-4 isoenzymes), iron, urea nitrogen, beta-globulin, glucose, and urea nitrogen-to-creatinine ratio determinations. Significant (P less than 0.05) quadratic contrasts were observed between duration of transport and serum unsaturated iron binding capacity, total iron binding capacity, and LD-5 percentage. Calf source had a significant (P less than 0.05) effect on almost all variables tested.(

ABSTRACT

TRUNCATED AT 250 WORDS)

Authors+Show Affiliations

US Department of Agriculture-Agricultural Research Service, Bushland, TX 79012.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article

Language

eng

PubMed ID

3348528

Citation

Cole, N A., et al. "Effect of Transport On Feeder Calves." American Journal of Veterinary Research, vol. 49, no. 2, 1988, pp. 178-83.
Cole NA, Camp TH, Rowe LD, et al. Effect of transport on feeder calves. Am J Vet Res. 1988;49(2):178-83.
Cole, N. A., Camp, T. H., Rowe, L. D., Stevens, D. G., & Hutcheson, D. P. (1988). Effect of transport on feeder calves. American Journal of Veterinary Research, 49(2), 178-83.
Cole NA, et al. Effect of Transport On Feeder Calves. Am J Vet Res. 1988;49(2):178-83. PubMed PMID: 3348528.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effect of transport on feeder calves. AU - Cole,N A, AU - Camp,T H, AU - Rowe,L D,Jr AU - Stevens,D G, AU - Hutcheson,D P, PY - 1988/2/1/pubmed PY - 2001/3/28/medline PY - 1988/2/1/entrez SP - 178 EP - 83 JF - American journal of veterinary research JO - Am. J. Vet. Res. VL - 49 IS - 2 N2 - One hundred fifty feeder steers (mean body weight, 195 kg) were assigned to 1 of 3 transport groups and were deprived of feed and water (fasted) for 24 hours. Additionally, calves were transported on a commercial livestock trailer for 0 (control-fasted only), 12 (short haul), or 24 (long haul) hours. Blood samples were obtained from the jugular vein before calves were loaded on the transport vehicle and immediately after calves of the long-haul group returned to the research feedlot. Complete blood counts were performed and 32 mineral, enzyme, and biochemical constituents were measured. Calf morbidity, mortality, and average daily weight gain were evaluated during the next 56 days. Duration of transport did not affect average daily gain; however, calves of the short-haul group had significantly (P less than 0.05) higher morbidity and mortality than did those of the control and long-haul groups. In all groups, results of differential leukocyte counts were indicative of stress response. Significant (P less than 0.05) linear contrasts were observed between duration of transport and erythrocyte, leukocyte, segmented neutrophil, lymphocyte, and eosinophil counts and results of serum enzyme (alanine transaminase, hydroxybutyrate dehydrogenase, total lactate dehydrogenase [LD], and LD-1, LD-3, and LD-4 isoenzymes), iron, urea nitrogen, beta-globulin, glucose, and urea nitrogen-to-creatinine ratio determinations. Significant (P less than 0.05) quadratic contrasts were observed between duration of transport and serum unsaturated iron binding capacity, total iron binding capacity, and LD-5 percentage. Calf source had a significant (P less than 0.05) effect on almost all variables tested.(ABSTRACT TRUNCATED AT 250 WORDS) SN - 0002-9645 UR - https://www.unboundmedicine.com/medline/citation/3348528/Effect_of_transport_on_feeder_calves_ L2 - https://www.lens.org/lens/search?q=citation_id:3348528 DB - PRIME DP - Unbound Medicine ER -