The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers
The aim of the study was to examine the influence of the rearing system and age on the phenotypic correlation of the physical properties of the eggs of the Banat naked neck layers. In both examined systems (extensive and semi-intensive system) there were 50 Banat naked neck layers each. The egg prop...
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| Format: | Article |
| Language: | English |
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University of Kragujevac, Faculty of Agronomy, Cacak
2023-01-01
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| Series: | Acta Agriculturae Serbica |
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| Online Access: | https://scindeks-clanci.ceon.rs/data/pdf/0354-9542/2023/0354-95422356125S.pdf |
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| author | Stepić Jelena Đermanović Vladan Popović Zoran Stepić Stefan Petričević Veselin Petrović Aleksandra Rakonjac Simeon |
| author_facet | Stepić Jelena Đermanović Vladan Popović Zoran Stepić Stefan Petričević Veselin Petrović Aleksandra Rakonjac Simeon |
| author_sort | Stepić Jelena |
| collection | DOAJ |
| description | The aim of the study was to examine the influence of the rearing system and age on the phenotypic correlation of the physical properties of the eggs of the Banat naked neck layers. In both examined systems (extensive and semi-intensive system) there were 50 Banat naked neck layers each. The egg properties were examined at three evenly distributed time intervals (40, 45 and 50 weeks of age) in the period from May to July. In order to determine the external properties of egg quality, three basic measures were observed: egg weight, egg length and egg width. Based on the measured length and width of the eggs, the egg shape index was calculated, and subsequently the volume and surface area of the eggs were determined. For each examined factor, the correlation between the mentioned characteristics was determined. The obtained results showed a significant effect of the rearing system on all examined egg properties (R < 0.05), while the influence of age as well as the interaction of the two examined factors had no significant effect. The highest correlation among all investigated factors was found between surface area and egg volume. |
| first_indexed | 2024-03-08T04:10:23Z |
| format | Article |
| id | doaj.art-3f5a53716f6d4e1dbba91cc2a67dbac5 |
| institution | Directory Open Access Journal |
| issn | 0354-9542 2560-3140 |
| language | English |
| last_indexed | 2024-03-08T04:10:23Z |
| publishDate | 2023-01-01 |
| publisher | University of Kragujevac, Faculty of Agronomy, Cacak |
| record_format | Article |
| series | Acta Agriculturae Serbica |
| spelling | doaj.art-3f5a53716f6d4e1dbba91cc2a67dbac52024-02-08T22:12:07ZengUniversity of Kragujevac, Faculty of Agronomy, CacakActa Agriculturae Serbica0354-95422560-31402023-01-01285612513010.5937/AASer2356125S0354-95422356125SThe influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layersStepić Jelena0Đermanović Vladan1https://orcid.org/0000-0001-6748-5442Popović Zoran2Stepić Stefan3Petričević Veselin4https://orcid.org/0000-0002-2421-8341Petrović Aleksandra5Rakonjac Simeon6https://orcid.org/0000-0002-1232-1755University of Belgrade, Faculty of Agriculture, Belgrade, SerbiaUniversity of Belgrade, Faculty of Agriculture, Belgrade, SerbiaUniversity of Belgrade, Faculty of Agriculture, Belgrade, SerbiaUniversity of Belgrade, Faculty of Agriculture, Belgrade, SerbiaInstitute for Animal Husbandry, Belgrade, SerbiaInstitute for Animal Husbandry, Belgrade, SerbiaUniversity of Kragujevac, Faculty of Agronomy, Čacak, SerbiaThe aim of the study was to examine the influence of the rearing system and age on the phenotypic correlation of the physical properties of the eggs of the Banat naked neck layers. In both examined systems (extensive and semi-intensive system) there were 50 Banat naked neck layers each. The egg properties were examined at three evenly distributed time intervals (40, 45 and 50 weeks of age) in the period from May to July. In order to determine the external properties of egg quality, three basic measures were observed: egg weight, egg length and egg width. Based on the measured length and width of the eggs, the egg shape index was calculated, and subsequently the volume and surface area of the eggs were determined. For each examined factor, the correlation between the mentioned characteristics was determined. The obtained results showed a significant effect of the rearing system on all examined egg properties (R < 0.05), while the influence of age as well as the interaction of the two examined factors had no significant effect. The highest correlation among all investigated factors was found between surface area and egg volume.https://scindeks-clanci.ceon.rs/data/pdf/0354-9542/2023/0354-95422356125S.pdfbanat naked neckbreeding systemegg quality |
| spellingShingle | Stepić Jelena Đermanović Vladan Popović Zoran Stepić Stefan Petričević Veselin Petrović Aleksandra Rakonjac Simeon The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers Acta Agriculturae Serbica banat naked neck breeding system egg quality |
| title | The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers |
| title_full | The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers |
| title_fullStr | The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers |
| title_full_unstemmed | The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers |
| title_short | The influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of Banat naked neck layers |
| title_sort | influence of rearing system and age on the phenotypic correlation of the physical properties of eggs of banat naked neck layers |
| topic | banat naked neck breeding system egg quality |
| url | https://scindeks-clanci.ceon.rs/data/pdf/0354-9542/2023/0354-95422356125S.pdf |
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