Chelated Minerals and Limestone Particle Sizes on Performance and Bone Quality of Brown-Egg Layers

Cordeiro, CN; Bastos-Leite, Silvana Cavalcante; Vasconcelos, FC; Goulart, C.C.; Sousa, Ana Lídia Madeira de; Costa, AC

doi:10.1590/1806-9061-2016-0238

Cited by 2 publications

(1 citation statement)

References 18 publications

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“…The ST and SI are positively correlated with breaking strength (Blanco et al, 2014). Also, eggshell with lower quality than desired may lead to contamination of the important content (yolk and albumen), compromising the dietary health of consumers and determined the number of salable eggs output in the layer industry (Cordeiro et al, 2017). Results in the current study indicated that, there were no differences between Cairo L-2 and LBL birds in ST.…”

Section: Ovarian Morphology and Egg Quality Traits Of Egyptian Selectmentioning

confidence: 56%

Ovarian Morphology and Egg Quality Traits of Egyptian Selected Strain for Egg Production Compared with Commercial Laying Strains

Nassar

El-Komy

Abdou

2017

Rev. Bras. Cienc. Avic.

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An experiment was conducted to evaluate the effect of selection for egg production performance of Cairo L-2 strain, as a local layer strain, after five generations of selection on productivity, ovarian morphology and some egg quality traits versus commercial Lohmann Brown-Lite (LBL) strain. The performance in the 5th generation was evaluated in Cairo L-2 and LBL strains for live body weight at sexual maturity (BWSM), age at sexual maturity (ASM), first egg weight (FEW), ovarian morphology, ovarian follicles number, ovarian weights and diameter, oviduct weight, liver weight, and stroma weight and their percentages to live body weight at sexual maturity for Cairo L-2 and LBL strains. Egg traits at 36 weeks of age including: egg number (EN), egg weight (EW), shell thickness (ST), and shell index (SI) were also obtained. Current results indicated that Cairo L-2 strain had higher ASM compared with LBL strain. Also, Cairo L-2 strain had lower BWSM, oviduct, ovary, stroma, and liver absolute weights and relative ovary weight compared with LBL strain. Ovarian follicles number, weights and diameter, FEW, and EN until 36 weeks of age were higher in LBL than in Cairo L-2 strain. Also, SI of the LBL was higher than that of Cairo L-2 strain. Moreover, Cairo L-2 strain egg production until 36 weeks of age was about 80% of that of LBL strain with good ST and SI. In conclusion, there were positive responses in ovarian morphology, egg production, and egg quality traits of Cairo L-2 strain associated with breeding program.

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Section: Ovarian Morphology and Egg Quality Traits Of Egyptian Selectmentioning

confidence: 56%

Ovarian Morphology and Egg Quality Traits of Egyptian Selected Strain for Egg Production Compared with Commercial Laying Strains

Nassar

El-Komy

Abdou

2017

Rev. Bras. Cienc. Avic.

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Different Calcium Levels and Two Limestone Granulometries in the Diet of Laying Hens: Performance and Bone Characteristics

Pacheco

Bastos-Leite

Oliveira

et al. 2022

Braz. J. Poult. Sci.

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Chelated Minerals and Limestone Particle Sizes on Performance and Bone Quality of Brown-Egg Layers

Cited by 2 publications

References 18 publications

Ovarian Morphology and Egg Quality Traits of Egyptian Selected Strain for Egg Production Compared with Commercial Laying Strains

Ovarian Morphology and Egg Quality Traits of Egyptian Selected Strain for Egg Production Compared with Commercial Laying Strains

Different Calcium Levels and Two Limestone Granulometries in the Diet of Laying Hens: Performance and Bone Characteristics

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