論文

基本情報

氏名 大内 義光
氏名(カナ) オオウチ ヨシミツ
氏名(英語) Ouchi Yoshimitsu
所属 獣医学部 獣医保健看護学科
職名 助教
researchmap研究者コード R000035739
researchmap機関 岡山理科大学

題名

Application of a simple measuring method to evaluate the fecal microflora of dairy cows in the summer season

単著・共著の別

 

著者

Miki Amimoto
Yoshimitsu Ouchi
Miki Okita
Takashi Hirota
Yoshimi Imura
Takashi Bungo

概要

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 temperatures were 19.9 degrees C in early summer and more than 27.5 degrees 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. coil 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.

発表雑誌等の名称

Journal of Advanced Veterinary and Animal Research

出版者

ScopeMed

8

2

開始ページ

307

終了ページ

307

発行又は発表の年月

2021

査読の有無

有り

招待の有無

 

記述言語

英語

掲載種別

研究論文(学術雑誌)

ISSN

 

ID:DOI

10.5455/javar.2021.h516

ID:NAID(CiNiiのID)

 

ID:PMID

 

JGlobalID

 

arXiv ID

 

ORCIDのPut Code

 

DBLP ID