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46697

NANO-COPPER AS A NEW GROWTH PROMOTER IN THE DIET OF GROWING NEW ZEALAND WHITE RABBITS

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Last updated: 04 Jan 2025

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Abstract

Seventy two rabbits, 35 days old and weighing 622g average body weight, were used for the present study. The rabbits were randomly assigned into 4 equal treatments (n=18). Animals in treatment 1 served as a control group and were given basal diet without supplementation, while rabbits in treatments 2, 3 and 4 were given nano-copper in the diet at levels 25, 50 and 75 mg/kg diet, respectively. The experiment lasted for 8 weeks.  
The results revealed that, rabbits fed diets supplemented with 50 or 75 mg Cu/ kg diet as Nano-Cu recorded significantly higher (P<0.01) final body weight and performance index also, recorded better feed conversion ratio during all growth periods than the control group. The group of rabbits fed diet supplemented with 50 mg Nano-Cu/kg diet significantly achieved the best relative growth rate percentage. Dietary supplementation with 50 mg Nano-Cu /kg diet significantly recorded higher carcass, fore part, trunk and hind part percentages comparing with the control group, it also significantly reduced abdominal fat by 28.4%. The Nano- Cu supplementation significantly (P<0.05) increased activity of superoxide dismutase enzyme compared with the control group. Copper content in rabbits liver significantly increased by increasing dietary Nano-Cu.
Dietary Nano-Cu supplementation significantly (P<0.05) increased the population of total bacterial count and lactolacillus counts and decreased the population of ureolytic bacteria, Escherichia coli and clostridium spp. Supplementation of Nano-Cu to rabbit diets significantly increased plasma hemoglobin, red blood cells count and lymphocytes percentage. Economical efficiency improved for rabbits fed either 50 or 75 mg Nano-Cu supplemental diet.
Conclusively, Nano-Cu is considered a new substitution for high dose of inorganic copper in growing NZW rabbits feeding and can be fed up to 50 mg/kg diet without any deleterious effects on production and meat safety of rabbits.
 
 

DOI

10.21608/ejrs.2015.46697

Keywords

Nano-copper, growth promoter, growing rabbits, productive performance

Authors

First Name

Amira

Last Name

Refaie

MiddleName

-

Affiliation

Animal Production Research Institute, ARC, Dokki, Giza, 12618, Egypt

Email

amira_refaie2@yahoo.com

City

ARC, Giza

Orcid

-

First Name

Mervat

Last Name

Ghazal

MiddleName

-

Affiliation

Animal Production Research Institute, ARC, Dokki, Giza, 12618, Egypt

Email

-

City

ARC, Giza

Orcid

-

First Name

Safaa

Last Name

Barakat

MiddleName

-

Affiliation

Animal Production Research Institute, ARC, Dokki, Giza, 12618, Egypt

Email

safaa_ataya@yahoo.com

City

ARC, Dokki, Giza, 12618

Orcid

-

First Name

Wael

Last Name

Morsy

MiddleName

-

Affiliation

Animal Production Research Institute, ARC, Dokki, Giza, 12618, Egypt

Email

-

City

ARC, Giza

Orcid

-

First Name

Samia

Last Name

Meshreky

MiddleName

akaria

Affiliation

Animal Production Research Institute, ARC, Dokki, Giza, 12618, Egypt

Email

-

City

ARC, Giza

Orcid

-

First Name

Goerge

Last Name

Younan

MiddleName

-

Affiliation

Animal Production Research Institute, ARC, Dokki, Giza, 12618, Egypt

Email

-

City

ARC, Dokki, Giza, 12618

Orcid

-

First Name

Wael

Last Name

Eisa

MiddleName

-

Affiliation

National Research Center, Dokki, Giza, Egypt.

Email

-

City

National Research Center, Dokki, Giza

Orcid

-

Volume

25

Article Issue

1

Related Issue

6595

Issue Date

2015-01-01

Receive Date

2014-08-27

Publish Date

2015-01-01

Page Start

39

Page End

57

Print ISSN

1110-2594

Online ISSN

2682-3330

Article File

EJRS_Volume 25_Issue 1_Pages 39-57.pdf

PDF . 573.5kB

Link

https://ejrs.journals.ekb.eg/article_46697.html

Detail API

https://ejrs.journals.ekb.eg/service?article_code=46697

Order

3

Type

Original Article

Type Code

868

Publication Type

Journal

Publication Title

Egyptian Journal of Rabbit Science

Publication Link

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

MainTitle

NANO-COPPER AS A NEW GROWTH PROMOTER IN THE DIET OF GROWING NEW ZEALAND WHITE RABBITS

Details

Type

Article

Created At

22 Jan 2023