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EFFECT OF LIMESTONE SIZE PARTICLES ON IMPROVING EGGSHELL AND BONE PHYSICAL AND MECHANICAL CHARACTERISTICS AT THE PEAK OF EGG PRODUCTION IN GOLDEN MONTAZAH CHICKEN

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Last updated: 04 Jan 2025

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Biosystems Engineering

Abstract

This study investigated the influence of different particle sizes of limestone in Golden Montazah layers diets on physical and mechanical properties of egg production, eggshell quality and breaking strength of tibia from 32 to 44 weeks of age. Limestone consisted of fine (F> 0.6 mm) and coarse (C>2.8mm-4.5mm). All hens take a basal ration of the same composition. The differences between the four equal groups were in the replacement percent of fine pulverised limestone by granular limestone, of coarser particle size. The control group takes the basal diet with only pulverised limestone as a calcium supplement. In the diet ration of the second group, 60% of the pulverised limestone was replaced with granular limestone, in the third group percent 80 % and in the last group 100% of fine limestone replaced with coarse particles of limestone. Significantly higher breaking force (31.69N), shell weight (5.65 g), shell thickness (0.46 mm) were found for eggs from the fourth group of hens than for eggs from the control group (29.46 N; 5.33 g ; 0.37 respectively). Tibia breaking strength was significantly higher (350.66 N) than those in control group (252.82 N). The results obtained in our investigation showed some possibilities of eggshell quality improvement using limestone of coarser particle size as a Ca supplement in the hen diet. Replacing 60-100% of fine limestone by coarser particle size limestone had positive effects on eggshell quality.

DOI

10.21608/mjae.2019.94903

Authors

First Name

S. E.

Last Name

Mosa

MiddleName

-

Affiliation

Senior Res., Agric. Eng. Res. Inst. (AEnRI), Agric. Res. Center (ARC), Dokki, Giza, Egypt.

Email

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City

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Orcid

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First Name

A. R.

Last Name

Khosht

MiddleName

-

Affiliation

Researcher, Animal Production Res. Inst., Agric. Res. Center (ARC), Dokki, Giza, Egypt.

Email

-

City

-

Orcid

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Volume

36

Article Issue

4

Related Issue

14308

Issue Date

2019-10-01

Receive Date

2020-06-10

Publish Date

2019-10-01

Page Start

1,303

Page End

1,318

Print ISSN

1687-384X

Online ISSN

2636-3062

Article File

MJAE_Volume 36_Issue 4_Pages 1303-1318.pdf

PDF . 748.2kB

Link

https://mjae.journals.ekb.eg/article_94903.html

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https://mjae.journals.ekb.eg/service?article_code=94903

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16

Type

Original Article

Type Code

1,326

Publication Type

Journal

Publication Title

Misr Journal of Agricultural Engineering

Publication Link

https://mjae.journals.ekb.eg/

MainTitle

EFFECT OF LIMESTONE SIZE PARTICLES ON IMPROVING EGGSHELL AND BONE PHYSICAL AND MECHANICAL CHARACTERISTICS AT THE PEAK OF EGG PRODUCTION IN GOLDEN MONTAZAH CHICKEN

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Article

Created At

23 Jan 2023