Application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer season
Objective: The effect of seasonality needs to be considered in designing future studies because global warming has caused a rise in ambient temperatures. The objective of the present study is to investigate the effect of high ambient temperatures on fecal score and fecal microflora in dairy cows dur...
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Network for the Veterinarians of Bangladesh
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doaj-d44ccef5f49b4e139ab80bbf616a02882021-07-04T08:26:19ZengNetwork for the Veterinarians of BangladeshJournal of Advanced Veterinary and Animal Research2311-77102021-06-018230731110.5455/javar.2021.h51655888Application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer seasonMiki Amimoto0Yoshimitsu Ouchi1Miki Okita2Takashi Hirota3Yoshimi Imura4Takashi Bungo5Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Science for Life, Hiroshima University, Higashi-Hiroshima, Japan Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Science for Life, Hiroshima University, Higashi-Hiroshima, Japan Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Science for Life, Hiroshima University, Higashi-Hiroshima, Japan Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Science for Life, Hiroshima University, Higashi-Hiroshima, Japan Faculty of Agriculture, University of the Ryukyus, Japan Laboratory of Animal Behavior and Physiology, Graduate School of Integrated Science for Life, Hiroshima University, Higashi-Hiroshima, Japan.Objective: The effect of seasonality needs to be considered in designing future studies because global warming has caused a rise in ambient temperatures. The objective of the present study is to investigate the effect of high ambient temperatures on fecal score and fecal microflora in dairy cows during summer. Materials and Methods: During the 7 days before the sampling of feces, the daily mean tempera¬tures were 19.9°C in early summer and more than 27.5°C in late summer. Fecal samples were collected from the rectum of cows and the fecal score was evaluated on a 4-point scale. The equalized samples were used to extract the genomic deoxyribonucleic acid (DNA) of the bacteria (Escherichia coli, Salmonella, Lactobacillus, and Bifidobacterium). Results: There was no significant difference in fecal scores between the sampling times in early and late summer. In the populations of the bacteria, there was no significant difference between sampling days in the DNA level of Salmonella, and E. coli in late summer increased to more than three times the level in early summer. However, both levels of Lactobacillus and Bifidobacterium in early summer significantly decreased after 2 months. Conclusion: These data suggest that the increase in temperature in late summer may adversely affect the populations of bacteria in the intestinal environment of dairy cows. In addition, the method used in the present study was sufficient to evaluate the changes in internal and external environmental conditions of dairy cattle. [J Adv Vet Anim Res 2021; 8(2.000): 307-311]http://www.ejmanager.com/fulltextpdf.php?mno=55888lactobacillus; escherichia coli; heat stress; feces; cows |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Miki Amimoto Yoshimitsu Ouchi Miki Okita Takashi Hirota Yoshimi Imura Takashi Bungo |
spellingShingle |
Miki Amimoto Yoshimitsu Ouchi Miki Okita Takashi Hirota Yoshimi Imura Takashi Bungo Application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer season Journal of Advanced Veterinary and Animal Research lactobacillus; escherichia coli; heat stress; feces; cows |
author_facet |
Miki Amimoto Yoshimitsu Ouchi Miki Okita Takashi Hirota Yoshimi Imura Takashi Bungo |
author_sort |
Miki Amimoto |
title |
Application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer season |
title_short |
Application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer season |
title_full |
Application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer season |
title_fullStr |
Application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer season |
title_full_unstemmed |
Application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer season |
title_sort |
application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer season |
publisher |
Network for the Veterinarians of Bangladesh |
series |
Journal of Advanced Veterinary and Animal Research |
issn |
2311-7710 |
publishDate |
2021-06-01 |
description |
Objective: The effect of seasonality needs to be considered in designing future studies because global warming has caused a rise in ambient temperatures. The objective of the present study is to investigate the effect of high ambient temperatures on fecal score and fecal microflora in dairy cows during summer.
Materials and Methods: During the 7 days before the sampling of feces, the daily mean tempera¬tures were 19.9°C in early summer and more than 27.5°C in late summer. Fecal samples were collected from the rectum of cows and the fecal score was evaluated on a 4-point scale. The equalized samples were used to extract the genomic deoxyribonucleic acid (DNA) of the bacteria (Escherichia coli, Salmonella, Lactobacillus, and Bifidobacterium).
Results: There was no significant difference in fecal scores between the sampling times in early and late summer. In the populations of the bacteria, there was no significant difference between sampling days in the DNA level of Salmonella, and E. coli in late summer increased to more than three times the level in early summer. However, both levels of Lactobacillus and Bifidobacterium in early summer significantly decreased after 2 months.
Conclusion: These data suggest that the increase in temperature in late summer may adversely affect the populations of bacteria in the intestinal environment of dairy cows. In addition, the method used in the present study was sufficient to evaluate the changes in internal and external environmental conditions of dairy cattle. [J Adv Vet Anim Res 2021; 8(2.000): 307-311] |
topic |
lactobacillus; escherichia coli; heat stress; feces; cows |
url |
http://www.ejmanager.com/fulltextpdf.php?mno=55888 |
work_keys_str_mv |
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