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Calcium requirements of broiler breeders

 

Marketed By :  LAP LAMBERT Academic Publishing   Sold By :  Kamal Books International  
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  • Product Description
 

Calcium is the key element required for bone and eggshell formation in laying hens. Consequently, knowledge regarding the calcium requirements of broiler breeder pullets/hens during rearing period (up to 22 weeks) and laying period (23 to 60 weeks) is of utmost importance. This study showed that 1.0% Ca is adequate for normal bone development in broiler breeder pullets on restricted feed during rearing period. It seems that 2.5% Ca (3.5 – 4.0 Ca g/hen/day) is needed for growth, bone development and good egg quality of broiler breeder hens during the laying phase. From 23 to 35 weeks of age, 1.5% dietary Ca was sufficient to achieve maximum hen day production, egg weight and egg mass. Additionally, from 36 to 60 weeks of age 2.5% Ca is required for maximum hen day production, eggshell weight, egg mass and eggshell quality. Higher Ca retentions were observed for birds consuming 2.5% Ca diet compared to 1.5% Ca. Bone dimensions, mechanical properties, true cortical area and percent bone increased up to 18 weeks of age. The same increase was found from 35 to 60 weeks for the tibia length but not for the tibia width.

Product Specifications
SKU :COC66032
AuthorJohn Cassius Moreki
LanguageEnglish
BindingPaperback
Number of Pages236
Publishing Year2013-10-09T00:00:00.000
ISBN9783659446764
Edition1 st
Book TypeOrganization & management of education
Country of ManufactureIndia
Product BrandLAP LAMBERT Academic Publishing
Product Packaging InfoBox
In The Box1 Piece
Product First Available On ClickOnCare.com2015-07-08 00:00:00