Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System
Authors
Rakonjac, SimeonDosković, Vladimir
Bogosavljević-Bošković, Snežana
Škrbić, Zdenka
Lukić, Miloš
Petričević, Veselin
Petrović, Milun D.
Article (Published version)
Metadata
Show full item recordAbstract
The aim of this study was to evaluate the effect of rearing systems
and genotypes on production performance and egg quality. Isa Brown
and New Hampshire genotypes were used in this study. These two
genotypes were housed in floor and organic rearing systems. During the
experimental period, which lasted one year (52 weeks), the following
production performance parameters were recorded: egg production,
daily egg mass, feed consumption, feed conversion efficiency, and
mortality. Fifteen eggs per group were collected for analysis at 64 weeks
of hen age. These samples were evaluated for external parameters
(egg weight and egg shape index), internal parameters (albumen
height, Haugh unit, and the proportions of albumen, yolk and shell),
eggshell quality parameters (shell thickness, shell deformation and
shell breaking strength), and eggs’ chemical composition (dry matter,
minerals, protein and lipids). Generally, Isa Brown hens had better
production performance than New Hampshir...e hens. At the same time,
organic New Hampshire layers performed better than floor-reared ones.
Genotype had a significant effect on all ten egg quality parameters
(external, internal and eggshell quality), rearing system independently
affected only egg weight, and the interaction of the observed factors
significantly influenced seven parameters. Genotype had a significant
effect on three of the four chemical composition parameters, while no
significant effect of the rearing system was established on the chemical
composition of eggs. The rearing system x genotype interaction
significantly affected the eggs’ protein content.
Keywords:
egg quality / genotype / laying hens / rearing systemsSource:
Brazilian Journal of Poultry Science, 2021, 23, 02, 001-008Publisher:
- Fundação APINCO de Ciência e Tecnologia Avícolas
Funding / projects:
- "info:eu-repo/grantAgreement/MESTD/inst-2020/200088/RS// (RS-MESTD-inst-2020-200088)
- "info:eu-repo/grantAgreement/MESTD/inst-2020/200022/RS//" (RS-MESTD-inst-2020-200022)
Collections
Institution/Community
RIStocarTY - JOUR AU - Rakonjac, Simeon AU - Dosković, Vladimir AU - Bogosavljević-Bošković, Snežana AU - Škrbić, Zdenka AU - Lukić, Miloš AU - Petričević, Veselin AU - Petrović, Milun D. PY - 2021 UR - http://r.istocar.bg.ac.rs/handle/123456789/758 AB - The aim of this study was to evaluate the effect of rearing systems and genotypes on production performance and egg quality. Isa Brown and New Hampshire genotypes were used in this study. These two genotypes were housed in floor and organic rearing systems. During the experimental period, which lasted one year (52 weeks), the following production performance parameters were recorded: egg production, daily egg mass, feed consumption, feed conversion efficiency, and mortality. Fifteen eggs per group were collected for analysis at 64 weeks of hen age. These samples were evaluated for external parameters (egg weight and egg shape index), internal parameters (albumen height, Haugh unit, and the proportions of albumen, yolk and shell), eggshell quality parameters (shell thickness, shell deformation and shell breaking strength), and eggs’ chemical composition (dry matter, minerals, protein and lipids). Generally, Isa Brown hens had better production performance than New Hampshire hens. At the same time, organic New Hampshire layers performed better than floor-reared ones. Genotype had a significant effect on all ten egg quality parameters (external, internal and eggshell quality), rearing system independently affected only egg weight, and the interaction of the observed factors significantly influenced seven parameters. Genotype had a significant effect on three of the four chemical composition parameters, while no significant effect of the rearing system was established on the chemical composition of eggs. The rearing system x genotype interaction significantly affected the eggs’ protein content. PB - Fundação APINCO de Ciência e Tecnologia Avícolas T2 - Brazilian Journal of Poultry Science T1 - Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System VL - 23 IS - 02 SP - 001 EP - 008 DO - 10.1590/1806-9061-2019-1045 ER -
@article{ author = "Rakonjac, Simeon and Dosković, Vladimir and Bogosavljević-Bošković, Snežana and Škrbić, Zdenka and Lukić, Miloš and Petričević, Veselin and Petrović, Milun D.", year = "2021", abstract = "The aim of this study was to evaluate the effect of rearing systems and genotypes on production performance and egg quality. Isa Brown and New Hampshire genotypes were used in this study. These two genotypes were housed in floor and organic rearing systems. During the experimental period, which lasted one year (52 weeks), the following production performance parameters were recorded: egg production, daily egg mass, feed consumption, feed conversion efficiency, and mortality. Fifteen eggs per group were collected for analysis at 64 weeks of hen age. These samples were evaluated for external parameters (egg weight and egg shape index), internal parameters (albumen height, Haugh unit, and the proportions of albumen, yolk and shell), eggshell quality parameters (shell thickness, shell deformation and shell breaking strength), and eggs’ chemical composition (dry matter, minerals, protein and lipids). Generally, Isa Brown hens had better production performance than New Hampshire hens. At the same time, organic New Hampshire layers performed better than floor-reared ones. Genotype had a significant effect on all ten egg quality parameters (external, internal and eggshell quality), rearing system independently affected only egg weight, and the interaction of the observed factors significantly influenced seven parameters. Genotype had a significant effect on three of the four chemical composition parameters, while no significant effect of the rearing system was established on the chemical composition of eggs. The rearing system x genotype interaction significantly affected the eggs’ protein content.", publisher = "Fundação APINCO de Ciência e Tecnologia Avícolas", journal = "Brazilian Journal of Poultry Science", title = "Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System", volume = "23", number = "02", pages = "001-008", doi = "10.1590/1806-9061-2019-1045" }
Rakonjac, S., Dosković, V., Bogosavljević-Bošković, S., Škrbić, Z., Lukić, M., Petričević, V.,& Petrović, M. D.. (2021). Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System. in Brazilian Journal of Poultry Science Fundação APINCO de Ciência e Tecnologia Avícolas., 23(02), 001-008. https://doi.org/10.1590/1806-9061-2019-1045
Rakonjac S, Dosković V, Bogosavljević-Bošković S, Škrbić Z, Lukić M, Petričević V, Petrović MD. Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System. in Brazilian Journal of Poultry Science. 2021;23(02):001-008. doi:10.1590/1806-9061-2019-1045 .
Rakonjac, Simeon, Dosković, Vladimir, Bogosavljević-Bošković, Snežana, Škrbić, Zdenka, Lukić, Miloš, Petričević, Veselin, Petrović, Milun D., "Production Performance and Egg Quality of Laying Hens as Influenced by Genotype and Rearing System" in Brazilian Journal of Poultry Science, 23, no. 02 (2021):001-008, https://doi.org/10.1590/1806-9061-2019-1045 . .