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The effect of some seasonal conditions on oestrus occurrence in cows

BROWSE_DETAIL_TITLE_ALTERNATE: The effect of some seasonal conditions on oestrus occurrence in cows

BROWSE_DETAIL_CREATION_DATE: 1999

BROWSE_DETAIL_IDENTIFIER_SECTION

BROWSE_DETAIL_TYPE: Article

BROWSE_DETAIL_PUBLISH_STATE: Published

BROWSE_DETAIL_FORMAT: PDF Document

BROWSE_DETAIL_LANG: English

BROWSE_DETAIL_SUBJECTS: Agriculture (General),

BROWSE_DETAIL_REVISION: 1

BROWSE_DETAIL_ISIWOS: YES

BROWSE_DETAIL_CREATORS: BÜLBÜL, Bülent (Author),

BROWSE_DETAIL_CONTRIBUTERS:

BROWSE_DETAIL_URL: http://mitos.tagem.gov.tr/browse/121/

BROWSE_DETAIL_IDENTIFIER_OTHER:
The effect of some seasonal conditions on oestrus occurrence in cows http://mitos.tagem.gov.tr/browse/121/476.pdf


BROWSE_DETAIL_PUBLISHER: Konya Bahri Dağdaş Uluslararası Tarımsal Araştırma Enstitüsü BROWSE_DETAIL_PUBLICATION_NAME: Archiv Tierzucht BROWSE_DETAIL_PUBLICATION_DATE: 1999 BROWSE_DETAIL_PUBLICATION_NUMBER: 5 BROWSE_DETAIL_PUBLICATION_VOLUME: 52 BROWSE_DETAIL_PUBLICATION_PAGE: 459-465


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BROWSE_DETAIL_TAB_KEYWORDS cattle, climatic conditions, oestrus response
BROWSE_DETAIL_TAB_ABSTRACT In this study, the effect of climatic conditions on oestrus occurrence was investigated byusing 9 972 oestrus records of cows recorded between 1995 and 2003. A distinct seasonalvariation in the oestrus occurrence was determined. Oestrus occurrence observed inJanuary, March, November and December was less than that in June and September(P<0.05). Annual distribution of the oestrus occurrence was positively correlated withenvironment temperature and insulation duration, but it was negatively correlated withrainfall (P<0.01). However, there was no relationship between oestrus occurrence andrelative humidity. In addition to these, there was a slight decrease in the oestrus responsewhen the temperature-humidity index (THI) was above 72; nevertheless, this decreasewas not significant (P>0.05). The data presented in this study demonstrated that theincrease in the environmental temperature up to 23 °C did not cause a suppressive effecton the ovarian activity. In conclusion, annual distribution of the oestrus occurrence ispositively correlated with environment temperature and insulation duration whereas it isnegatively correlated with rainfall in Holstein cows, in this study.
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