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The Effect of Heat Stress on Milk Yield, Milk Fat Rate and Rectal Temperature in Holstein-Friesian Dairy Cattle

Authors :
Mustafa Kibar
Galip Bakir
Ayhan Yilmaz
Source :
Selcuk Journal of Agricultural and Food Sciences. 34:183-188
Publication Year :
2020
Publisher :
Selcuk Journal of Agriculture and Food Sciences, 2020.

Abstract

Heat stress is an environmental factor that negatively affects the morphological and physiological properties of dairy cattle. The aim of this study is to investigate the relationship between heat stress and milk yield, milk fat ratio and body temperature in Holstein-Friesian dairy cattle. Data Southeastern Anatolia Region of Turkey's Siirt province was obtained from a special Kurtalan Farm. Milk yield and content of 13 head Holstein-Friesian dairy cattle were recorded in March, April, May, June, July, August and September. In addition, temperature and humidity records were recorded in the farm and in the parlor to be used for calculating the temperature humidity index value. In the analysis of data, correlation and regression methods were used in SAS 9.4 program. As a result, positive correlation (P

Details

ISSN :
24588377
Volume :
34
Database :
OpenAIRE
Journal :
Selcuk Journal of Agricultural and Food Sciences
Accession number :
edsair.doi...........e1e894116f6a8758d4cac30971677ab5
Full Text :
https://doi.org/10.15316/sjafs.2020.214