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46751

IMPACT OF SOY-LECITHIN BASED EXTENDER ON QUALITY AND FERTILITY OF PRESERVED RABBIT SEMEN

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Last updated: 04 Jan 2025

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Abstract

The current study aimed to evaluate the impact of soy lecithin, instead of egg yolk, in extenders on quality and fertility of rabbit semen preserved at 4°C. Six mature New Zealand White rabbits were used for semen collection. Two different concentrations of soybean lecithin; L1 (1% lecithin and 10% egg yolk) and L2 (only 2% lecithin) were compared with L0 (free lecithin Tris-Yolk extender) as a control. Good quality ejaculates (initial motility ≥ 70%) were diluted to four fold with specified extender and preserved for three days at 4°C. Progressive motility and viability were examined in pooled and diluted semen samples. In addition, fertility test was carried out on 98 multiparous rabbit does using one day preserved (4°C) extended semen.
Results showed that both lecithin-containing extenders slightly improved rabbit sperm motility. The decline rate in sperm motility by progress of preservation time was decreased in lecithin-based extenders compared to egg-yolk extenders. After one day of storage, the best progressive motility was observed in L1, but with non-significant differences. Both 48h and 72h of preservation at 4ºC showed better results (P<0.05) which were obtained for L1 and L2 as compared to L0. Sperm viability did not differ significantly all over the total periods of cold storage. There were no significant differences in pregnancy rates for artificially inseminated does with lecithin supplemented extenders (L1: 61.8% and L2: 60.0%) compared to control (L0: 58.8%).
Conclusively, soybean lecithin could be included in rabbit semen extenders as a non-animal origin instead of egg yolk. It maintained motility, viability values of chilled-stored spermatozoa and preserved their fertilizing capacity.
 
 
 
 

DOI

10.21608/ejrs.2015.46751

Keywords

Rabbits, semen preservation, soybean lecithin, fertility, biological risk

Authors

First Name

Fakhry

Last Name

El-Azzazi

MiddleName

-

Affiliation

Department of Animal Production, Faculty of Agriculture, Suez Canal University, Ismailia, Egypt.

Email

-

City

Suez Canal University

Orcid

-

First Name

Ahmed

Last Name

Hanafy

MiddleName

-

Affiliation

Department of Animal Production, Faculty of Agriculture, Suez Canal University, Ismailia, Egypt.

Email

-

City

Suez Canal University

Orcid

-

Volume

25

Article Issue

2

Related Issue

7226

Issue Date

2015-07-01

Receive Date

2015-03-19

Publish Date

2015-07-01

Page Start

197

Page End

209

Print ISSN

1110-2594

Online ISSN

2682-3330

Article File

EJRS_Volume 25_Issue 2_Pages 197-209.pdf

PDF . 502.6kB

Link

https://ejrs.journals.ekb.eg/article_46751.html

Detail API

https://ejrs.journals.ekb.eg/service?article_code=46751

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Original Article

Type Code

868

Publication Type

Journal

Publication Title

Egyptian Journal of Rabbit Science

Publication Link

https://ejrs.journals.ekb.eg/

MainTitle

IMPACT OF SOY-LECITHIN BASED EXTENDER ON QUALITY AND FERTILITY OF PRESERVED RABBIT SEMEN

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Type

Article

Created At

22 Jan 2023