Effects of transport stress on physiological responses and milk production in lactating dairy cows

Asian-Australasian Journal of Animal Sciences
Heeok HongSang-Rak Lee

Abstract

This study was conducted to investigate the effect of transport stress on physiological and hematological responses and milk performance in lactating dairy cows. Ten lactating dairy cows were randomly divided into 2 groups. The treatment group (TG) was transported 200 km for 4 h by truck, and the control group (NTG) was restrained by stanchion for 4 h in Konkuk University farm. Blood and milk samples were collected at 24 h pre-transport; 1, 2, and 4 h during transport; and 2, 24, and 48 h post-transport. Milk yields were measured at 24 h pre-transport, 0 h during transport, and 24, 48, and 72 h post-transport. Leukocyte, neutrophil, and monocyte numbers in the TG were significantly higher than those of the NTG at each experimental time point. Lymphocyte numbers in the TG were significantly (p<0.05) higher than those of the NTG at 48 h post-transport. Additionally, the neutrophil:lymphocyte ratio of the TG was 45% and 46% higher than that of the NTG at 4 h during transport and 2 h post-transport, respectively. There were no significant differences in erythrocyte numbers, hemoglobin concentrations, platelet numbers, and hematocrit percentages between two groups. Cortisol levels in the TG were significantly (p<0.05) higher than th...Continue Reading

References

Nov 1, 1989·Journal of Reproduction and Fertility·A S NandaH Dobson
Aug 20, 1988·The Veterinary Record·G MitchellM Ganhao
Apr 1, 1995·The Veterinary Record·P D WarrissA J Phillips
Jul 1, 1994·Journal of Dairy Science·R J Harmon
Oct 14, 1995·The Veterinary Record·T G Knowles
Jan 1, 1997·Journal of Animal Science·T Grandin
May 1, 2002·Sports Medicine·Ian B Stewart, Don C McKenzie
Jul 27, 2002·Domestic Animal Endocrinology·E Möstl, R Palme
Oct 11, 2003·Veterinary Research Communications·A Ferlazzo
Sep 13, 2005·The Veterinary Journal·Jorge Ramón López-OlveraSantiago Lavín
Aug 31, 2007·Expert Opinion on Biological Therapy·David T HarrisMohamed A Gaballa
Feb 1, 1946·The Journal of Clinical Endocrinology and Metabolism·H SELYE
Mar 1, 2012·Journal of Dairy Science·K J HandD F Kelton
Mar 8, 2016·Asian-Australasian Journal of Animal Sciences·Dongwon SeoJun Heon Lee
Jun 11, 2016·Asian-Australasian Journal of Animal Sciences·Luiza SeixasConcepta McManus

❮ Previous
Next ❯

Software Mentioned

TEST Statistical Analysis System

Related Concepts

Related Feeds

Carcinoma, Squamous Cell

Basal cell carcinoma is a form of malignant skin cancer found on the head and neck regions and has low rates of metastasis. Discover the latest research on basal cell carcinoma here.