ESTIMATION OF PREGNANCY PROBABILITY AFTER THE FIRST INSEMINATION IN HOLSTEIN COWS USING LOGISTIC STATISTICAL ANALYSIS

Q: How can I download an article?

To download an article from SID, first log in to the site, search for the article title, and click on the 'Download Article' option.

Q: How can I download an ISI article?

To download an ISI article on SID, enter the keyword or article title in the search bar, view the relevant results, click on the desired article, and select the 'Download Article' option.

Q: How can I access the SID database?

To access the SID database, visit SID.ir, create an account, and log in to access scientific resources.

Q: Is downloading articles from SID free?

Some articles on SID are available for free, while others require payment. Details are specified on the article's page.

BAHRI BINABAJ F.; TAHMOORESPOOR M.; FARHANGFAR H.; BASHTANI M.

Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Journal Paper

Paper Information

Journal: ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ) Year:2011 | Volume:20-4 | Issue:2 Page(s): 133-141

Download Full-Text

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

Persian Verion

View:

1,797

Download:

Cites:

Information Journal Paper

Title

ESTIMATION OF PREGNANCY PROBABILITY AFTER THE FIRST INSEMINATION IN HOLSTEIN COWS USING LOGISTIC STATISTICAL ANALYSIS

Author(s)

BAHRI BINABAJ F. | TAHMOORESPOOR M. | FARHANGFAR H. | BASHTANI M. | Issue Writer Certificate

Keywords

HOLSTEIN COWQ3

LOGISTIC ANALYSISQ3

NUMBER OF INSEMINATION PER CONCEPTIONQ2

Abstract

To evaluate the effects of some environmental factors on the probability of being pregnant after only one insemination in Iranian HOLSTEIN COWs, a total of 38074 records obtained from 10726 cows at different parities and inseminated during years 1985 to 2009 were utilized. All records were collected from a very large dairy herd which comprised of two units. A generalized statistical linear model was applied to analyze the data. Logistic regression model was applied as the statistical model. In the model, fixed effects of period and month of insemination, inseminator, parity and herd unit were included. The statistical model was run using GLIMMIX procedure of SAS software. Odds ratio estimation for period 1 (years 1985 to 1990) in comparison to periods 2 (years 1991 to 2000) and 3 (years 2001 to 2009) was 1.106 , 1.133 respectively, which means chance of being pregnant after first insemination in year period 1 in comparison to periods 2 and 3 were respectively 10.6%, 13.3% higher. Average insemination per conception in unit one and two was 2.22 and 2.38 respectively, and the difference was statistically significant (P<0.05). Odds ratio estimation for herd unit showed that chance of being pregnant after the first insemination in unit 1 was 15.4% higher than unit 2. Results indicate the influence of environmental and management factors on number of services needed for a cow to be conceived which by improving them reproductive efficiency will increase and pregnancy cost will decrease.

Cites

No record.

References

No record.

Cite

APA: Copy

BAHRI BINABAJ, F., TAHMOORESPOOR, M., FARHANGFAR, H., & BASHTANI, M.. (2011). ESTIMATION OF PREGNANCY PROBABILITY AFTER THE FIRST INSEMINATION IN HOLSTEIN COWS USING LOGISTIC STATISTICAL ANALYSIS. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), 20-4(2), 133-141. SID. https://sid.ir/paper/147522/en

Vancouver: Copy

BAHRI BINABAJ F., TAHMOORESPOOR M., FARHANGFAR H., BASHTANI M.. ESTIMATION OF PREGNANCY PROBABILITY AFTER THE FIRST INSEMINATION IN HOLSTEIN COWS USING LOGISTIC STATISTICAL ANALYSIS. ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ)[Internet]. 2011;20-4(2):133-141. Available from: https://sid.ir/paper/147522/en

IEEE: Copy

F. BAHRI BINABAJ, M. TAHMOORESPOOR, H. FARHANGFAR, and M. BASHTANI, “ESTIMATION OF PREGNANCY PROBABILITY AFTER THE FIRST INSEMINATION IN HOLSTEIN COWS USING LOGISTIC STATISTICAL ANALYSIS,” ANIMAL SCIENCE RESEARCHES (FACULTY OF AGRICULTURE, UNIVERSITY OF TABRIZ), vol. 20-4, no. 2, pp. 133–141, 2011, [Online]. Available: https://sid.ir/paper/147522/en

Related Journal Papers