THE EFFECT OF DIFFERENT PREOVULATORY SERUM ESTRADIOL CONCENTRATIONS ON THE CONCEPTION RATE OF SYNCHRONIZED DAIRY CATTLE

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.

AKBARI G.; BLOURCHI M.; Havarashti p.; NIASARI NASLAJI A.; TAJIK P.; AKBARI R.

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

Journal Paper

Paper Information

Journal: JOURNAL OF COMPARATIVE PATHOBIOLOGY IRAN Year:2011 | Volume:8 | Issue:2 Page(s): 467-473

Download Full-Text

Persian Verion

View:

11,858

Download:

Cites:

Information Journal Paper

Title

THE EFFECT OF DIFFERENT PREOVULATORY SERUM ESTRADIOL CONCENTRATIONS ON THE CONCEPTION RATE OF SYNCHRONIZED DAIRY CATTLE

Author(s)

Keywords

DAIRY COWQ2

PROESTRUSQ2

CONCEPTION RATEQ3

ESTRADIOL CONCENTRATIONQ2

Abstract

Lactating Holstein DAIRY COWs (n=167) were assigned randomly to four treatments groups. two groups presynchronized with two injection of PGF2a, 14 days apart and then followed with Ovsynch and Heatsynch (presynch-ovsynch or presynch-heatsynch) and two other groups presynchronized with one injection of PGF2a and two day after that receive GnRH 6 d before the first GnRH injection of ovsynch and heatsynch (G6G-ovsynch or G6G-heatsynch). Four blood samples were collected from cows for determination of plasma progesterone concentration. Sample 1 and 2 for determining the cyclic cows and Third samples 24h after PGF of the Ovsynch and Heatsynch protocol were taken to assay blood serum estradiol. The fourth sample was taken at 21 days afetr AI. Transrectal ultrasonography was performed to diagnose pregnant cows 30 d after AI. Mean milk production and BCS around AI time was similar among treatments. ESTRADIOL CONCENTRATION at PROESTRUS was similar among groups. Although CONCEPTION RATE was higher in Presynch-Heasynch (%53 versus %43 in presynch-ovsynch and G6Gheatsynch and %39 in presynch-ovsynch) but this difference was not significance. There was a significance positive correlation between estradiol conentration and CONCEPTION RATE (0.267) in our study in total but this correlation was higher in G6G-Ovsynch (0.343). This study has shown that there is a positive corrolation between preovulatory estradiol concentation and CONCEPTION RATE in the synchronized dairy cattle.

Cites

No record.

References

No record.

Cite

APA: Copy

AKBARI, G., BLOURCHI, M., Havarashti, p., NIASARI NASLAJI, A., TAJIK, P., & AKBARI, R.. (2011). THE EFFECT OF DIFFERENT PREOVULATORY SERUM ESTRADIOL CONCENTRATIONS ON THE CONCEPTION RATE OF SYNCHRONIZED DAIRY CATTLE. JOURNAL OF COMPARATIVE PATHOBIOLOGY IRAN, 8(2), 467-473. SID. https://sid.ir/paper/197265/en

Vancouver: Copy

AKBARI G., BLOURCHI M., Havarashti p., NIASARI NASLAJI A., TAJIK P., AKBARI R.. THE EFFECT OF DIFFERENT PREOVULATORY SERUM ESTRADIOL CONCENTRATIONS ON THE CONCEPTION RATE OF SYNCHRONIZED DAIRY CATTLE. JOURNAL OF COMPARATIVE PATHOBIOLOGY IRAN[Internet]. 2011;8(2):467-473. Available from: https://sid.ir/paper/197265/en

IEEE: Copy

G. AKBARI, M. BLOURCHI, p. Havarashti, A. NIASARI NASLAJI, P. TAJIK, and R. AKBARI, “THE EFFECT OF DIFFERENT PREOVULATORY SERUM ESTRADIOL CONCENTRATIONS ON THE CONCEPTION RATE OF SYNCHRONIZED DAIRY CATTLE,” JOURNAL OF COMPARATIVE PATHOBIOLOGY IRAN, vol. 8, no. 2, pp. 467–473, 2011, [Online]. Available: https://sid.ir/paper/197265/en

Related Journal Papers