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THE RELATIONSHIP BETWEEN PLASMA PROGESTERONE CONCENTRATION AND EMBRYO PRODUCTION IN DAIRY COWS SUPEROVULATED WITH FSH OR PMSG

Article

Last updated: 23 Dec 2024

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Subjects

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Tags

Theriogenology / reproductive technology

Abstract

Fourteen primiparous lactating cows, 3.5 to 4.5 years old in a military dairy farm nearby Cairo (Egypt) were used in this study. Following synchronization, the animals were randomly assigned into two groups; the first group (6 cows) was super-ovulated with a total dose of 32 mg FSH- P whereas the second group (8 cows) was treated with 3000 iu PMSG. Embryos were collected non-surgically on day 7 (day of estrus = day 0). Plasma samples were taken from cows of both groups on day-4 (first day of gonadotrophin treatment), day-2 (day of PGF2q injection), day 0 (day of estrus) days 1,3,5 post-estrus and day 7 (day of recovery) for progesterone assay. The results revealed that FSH was more effective as a super ovulatory agent than PMSG. Higher (P < 0.05) ovulation state (11.33 = 1.85 vs 6.63 « 1.14), number of embryos recovered per donor (5.17 1.20 vs 2.44 = 0.45) as well as number of transferable embryos (4.1621.0) vs 1.8620.42) were obtained from FSH than from PMSG-treated cows. However, more follicles (> 10 mm) were palpated in the PMSG-treated group (2.0020.40 vs 0.33 90.19; P < 0.01). Coefficients of correlation between progesterone concentration at initiation of superovulation and each of the ovulation rate, number of embryos recovered and number of transferable embryo were higher in FSH than in PMSG-treated cows. When the data of both groups were pooled, the respective correlations (0.74 0.69, 0.67) were still highly (P < 0.01) significant. Moreover, significant correlations were estimated between progesterone concentration and the mentioned parameters in FSH group at the day of recovery. This study revealed that measurement of plasma progesterone concentration can serve as a prognostic tool to predict the yield of fertile eggs and quality of embryos.

DOI

10.21608/vmjg.1992.372620

Authors

First Name

ISMAIL

Last Name

T

MiddleName

-

Affiliation

Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.

Email

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City

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Orcid

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First Name

ABOU-AHMED

Last Name

M

MiddleName

-

Affiliation

Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.

Email

-

City

-

Orcid

-

First Name

EL-BELELY

Last Name

S

MiddleName

-

Affiliation

Department of Theriogenology, Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt.

Email

-

City

-

Orcid

-

Volume

40

Article Issue

3

Related Issue

49632

Issue Date

1992-07-01

Receive Date

2024-08-08

Publish Date

1992-07-01

Page Start

63

Page End

72

Print ISSN

1110-1423

Online ISSN

2537-1045

Article File

VMJG_Volume 40_Issue 3_Pages 63-72.pdf

PDF . 3.6MB

Link

https://vmjg.journals.ekb.eg/article_372620.html

Detail API

https://vmjg.journals.ekb.eg/service?article_code=372620

Order

372,620

Type

Original Article

Type Code

544

Publication Type

Journal

Publication Title

Veterinary Medical Journal (Giza)

Publication Link

https://vmjg.journals.ekb.eg/

MainTitle

THE RELATIONSHIP BETWEEN PLASMA PROGESTERONE CONCENTRATION AND EMBRYO PRODUCTION IN DAIRY COWS SUPEROVULATED WITH FSH OR PMSG

Details

Type

Article

Created At

23 Dec 2024