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248648

RESPONSIVENESS OF ANGLO-NUBIAN AND DAMASCUS DOES TO CIDR-eCG PROTOCOL DURING OUT OF BREEDING SEASON

Article

Last updated: 04 Jan 2025

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Subjects

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Tags

Physiology

Abstract

       The current study was conducted to assess the efficiency of controlled internal drug release (CIDR) device preceding equine chorionic gonadotrophin(eCG) protocol to induce synchronized fertile estrus and improve reproductive performance of Anglo-Nubian and Damascus does during out of breeding seasonwhich lasted from December to May. Forty-eight multiparous does, 24 Anglo-Nubian and 24 Damascusbreeds each wasfurther allocated into two sub-groups, 12 lactating and 12 dry does. Each doe was treated with vaginal inserted CIDR device for a period of 19 days in association with injectionof 500 international units of eCGon the day of removal of CIDR. Samples of Serum were takenfrom each doe at day zero (CIDR insertion), day 19 (CIDR-removal), day 21 (mating), day 39 and day 56 (day 18 and day 35 after mating, respectively). Anglo-Nubian does showed higher concentration of serum progesterone and lower estradiol: progesterone (E2:P4) ratio compared to Damascus does. Lactating does of both breeds, produced higher estradiol and lowertotal antioxidant capacity (TAC) concentrations compared to dryones.  All does, achieved estrus after CIDR removal and eCG injection, but longer intervals to showestrus were recorded by lactating compared to dry goats. Anglo-Nubian does recorded higher prolificacy and fecundity compared to Damascus. In addition, the fecundity of lactating does was lower than that of dry goats. In conclusion, CIDR-eCG protocol induced successfully fertile estrus in both breeds. However, response of Anglo-Nubian does to CIDR-eCG protocol was superior to that of Damascus as evidenced by higher prolificacy and fecundity during non- breeding season.  

DOI

10.21608/ejap.2022.127322.1038

Keywords

goats, reproductive seasonality, CIDR-eCG protocol, prolificacy, fecundity, Total Antioxidant Capacity

Authors

First Name

Tamer

Last Name

Ramadan

MiddleName

Awad

Affiliation

Animal Production Research Institute, Agricultural Research Center, 4 Nadi El-Said, 12311 Dokki, Giza, Egypt

Email

tamereweda1174@yahoo.com

City

-

Orcid

0000-0003-3222-1425

First Name

Marwan

Last Name

Elmokadem

MiddleName

-

Affiliation

Animal Production Research Institute, Agricultural Research Center, 4 Nadi El-Said, 12311 Dokki, Giza, Egypt

Email

mrwan.mokadem@gmail.com

City

-

Orcid

0000-0002-4752-8342

First Name

Adel

Last Name

Nour El-Din

MiddleName

-

Affiliation

Animal Production Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 22545, Egypt

Email

noureldinadel@yahoo.com

City

-

Orcid

0000 0002 0563 8340

First Name

Amr

Last Name

Rashad

MiddleName

-

Affiliation

Animal Production Department, Faculty of Agriculture (El-Shatby), Alexandria University, Alexandria 22545, Egypt

Email

amr_rashad43@yahoo.com

City

-

Orcid

0000-0002-2588-9542

Volume

59

Article Issue

2

Related Issue

35522

Issue Date

2022-06-01

Receive Date

2022-03-14

Publish Date

2022-06-01

Page Start

53

Page End

60

Print ISSN

0302-4520

Online ISSN

2735-3028

Article File

EJAP_Volume 59_Issue 2_Pages 53-60.pdf

PDF . 932.7kB

Link

https://ejap.journals.ekb.eg/article_248648.html

Detail API

https://ejap.journals.ekb.eg/service?article_code=248648

Order

2

Type

Original Article

Type Code

1,298

Publication Type

Journal

Publication Title

Egyptian Journal of Animal Production

Publication Link

https://ejap.journals.ekb.eg/

MainTitle

RESPONSIVENESS OF ANGLO-NUBIAN AND DAMASCUS DOES TO CIDR-eCG PROTOCOL DURING OUT OF BREEDING SEASON

Details

Type

Article

Created At

22 Jan 2023