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42112

EFFECT OF CARVACROL ON PRODUCTIVE PERFORMANCE AND SOME IMMUNOLOGICAL PARAMETERS OF GROWING RABBITS

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Last updated: 22 Jan 2023

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Abstract

A total number of 40 New Zealand White rabbit males at 4 weeks of age and averaged 542.50g body weight were used in this study. Animals were distributed randomly into four experimental groups (10 rabbits each). The 1st group was served as a control group without any supplementation in drinking water. Whereas, the carvacrol was added with concentrations of 0.13, 0.26 and 0.39 ml/liter in drinking water for representing the 2nd, 3rd and 4th groups, respectively. The experiment lasted for 8 weeks. The obtained results could be summarized as follows: rabbit males supplied with 0.26 ml carvacrol/liter had the best value for live body weight and live body weight gain followed by rabbit provided 0.39 and 0.13 ml carvacrol/liter, respectively compared with the control group. Supplementation with 0.13 and 0.39 ml carvacrol/liter improved significantly (P≤0.05) feed conversion ratio compared with other groups (0.26 ml carvacrol/liter and control). There were significantly (P≤0.05) increased in the erythrocytes and leukocytes counts, and  hemoglobin, hematocrit value and lymphocytes percentage due to providing rabbit different levels of carvacrol. Rabbits supplemented 0.39 ml carvacrol/liter recorded the highest counts of both erythrocytes and leukocytes, and hemoglobin , hematocrit value and lymphocytes percentage, followed by rabbits provided 0.26 and 0.13 ml carvacrol/liter, respectively. Providing rabbit different levels of carvacrol significantly (P≤0.05)improved neutrophil/ lymphocytes ratio compared to control rabbits. Generally, rabbits drinking 0.39 ml carvacrol/liter recorded the best value of neutrophil/ lymphocytes ratio, followed by rabbits drinking 0.26 and 0.13 ml carvacrol/liter, respectively, compared to control group. Providing rabbit different levels of carvacrol significantly (P≤0.05) reduced the total counts of anaerobic and E. coli bacteria, at the same time they increased the beneficial bacteria counts (lactobacillus),rabbits supplemented 0.39 ml carvacrol/liter recorded the lowest count of both anaerobic and E. coli bacteria, and the highest count of lactobacillus followed by rabbits drinking 0.26 and 0.13 ml carvacrol/liter, respectively. It could be concluded that drinking rabbit different levels of carvacrol significantly improved the growth performance, carcass characteristic and some immunological parameters of growing rabbit males.

DOI

10.21608/ejrs.2016.42112

Keywords

Carvacrol, Rabbits, productive performance, carcass traits, immunological parameters

Authors

First Name

Amal

Last Name

Hekal

MiddleName

M

Affiliation

Department of Rabbit; Turkey and Water Fowl Breeding Research., Animal Production Research Institute, Agricultural Research Center, Giza, Egypt.

Email

dramalmaghawry@yahoo.com

City

-

Orcid

-

First Name

Adel

Last Name

Saidahmed

MiddleName

-

Affiliation

Department of Rabbit; Turkey and Water Fowl Breeding Research, Animal Production Research Institute, Agricultural Research Center, Giza, Egypt.

Email

-

City

-

Orcid

-

First Name

Fadila

Last Name

Easa

MiddleName

-

Affiliation

Department of Rabbit; Turkey and Water Fowl Breeding Research, Animal Production Research Institute, Agricultural Research Center, Giza, Egypt.

Email

-

City

-

Orcid

-

First Name

Wael

Last Name

Ali

MiddleName

-

Affiliation

Department of Rabbit; Turkey and Water Fowl Breeding Research, Animal Production Research Institute, Agricultural Research Center, Giza, Egypt.

Email

-

City

-

Orcid

-

First Name

Sabry

Last Name

Mousa

MiddleName

-

Affiliation

Department of Rabbit; Turkey and Water Fowl Breeding Research, Animal Production Research Institute, Agricultural Research Center, Giza, Egypt.

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-

City

-

Orcid

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Volume

26

Article Issue

2

Related Issue

6589

Issue Date

2016-07-01

Receive Date

2016-03-24

Publish Date

2016-07-01

Page Start

281

Page End

299

Print ISSN

1110-2594

Online ISSN

2682-3330

Article File

EJRS_Volume 26_Issue 2_Pages 281-299.pdf

PDF . 707.1kB

Link

https://ejrs.journals.ekb.eg/article_42112.html

Detail API

https://ejrs.journals.ekb.eg/service?article_code=42112

Order

9

Type

Original Article

Type Code

868

Publication Type

Journal

Publication Title

Egyptian Journal of Rabbit Science

Publication Link

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

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Article

Created At

22 Jan 2023