REPEATABILITY ESTIMATES OF EXTERNAL AND INTERNAL EGG QUALITY TRAITS OF LOCAL MUSCOVY DUCKS
Repeatability is one of the genetic parameters that determines breeding values of traits. Studies on repeatability estimates of the internal and external quality traits of Nigerian Muscovy duck eggs were carried out at Poultry Unit, Teaching and Research Farm, Osun State University. Ejigbo. A total...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
University of Agricultural Sciences and Veterinary Medicine, Bucharest
2024-01-01
|
| Series: | Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development |
| Online Access: | https://managementjournal.usamv.ro/pdf/vol.24_3/Art3.pdf |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849335391193137152 |
|---|---|
| author | Bababunmi AJAYI Halimah AGBAJE Kafayat AKINSOLA Adelani ADEOYE Great BABALOLA Rebecca ADAGA |
| author_facet | Bababunmi AJAYI Halimah AGBAJE Kafayat AKINSOLA Adelani ADEOYE Great BABALOLA Rebecca ADAGA |
| author_sort | Bababunmi AJAYI |
| collection | DOAJ |
| description | Repeatability is one of the genetic parameters that determines breeding values of traits. Studies on repeatability estimates of the internal and external quality traits of Nigerian Muscovy duck eggs were carried out at Poultry Unit, Teaching and Research Farm, Osun State University. Ejigbo. A total of 383 eggs collected from 50 ducks mated to 10 drakes were used for the studies. External egg quality studied includes: egg weight (EW), shell weight (SW), shell thickness (ST) egg length (EL), egg width (EWIEgg density (ED), egg shell index (ESI) and egg surface area (ESA), shell percentage (SP), shell density (SD), egg volume (EV) and shell surface area (SSA). The internal egg quality traits include: yolk colour (YC), yolk weight (YW), yolk height (YH), yolk diameter (YD), albumen height (AH), albumen diameter (AD), albumen weight (AW), yolk percentage (YP) yolk index (YI), albumen percentage (AP), and haugh unit (HU). The data collected were subjected to one way analysis of variance to determine variance components and repeatability estimates. Results showed that, repeatability estimates were ranged from low to moderately high and the repeatability values for external egg quality traits were: EW(0.44±0.02), SW(0.11±0.01), ST (-0.01±0.01), EL (0.26±0.02), EWI (0.39±0.02), ED (-0.01±0.01), ESI (-0.02±0.01), ESA (0.44±0.02), SP (0.16±0.02), SD (-0.01±0.01), EV (0.14±0.02) and SSA (0.11±0.01) while that of the internal qualities were: YC ( 0.01±0.01), YW (0.41±0.02), YH (0.10±0.01), YD (0.04±0.01), AH (-0.11±0.00), AD (0.21±0.02), AW (0.42±0.02), YP (0.37±0.02), AP (0.34±0.02), while Haugh unit is (0.34±0.02) and albumen index (0.02±0.01). It was concluded that, traits with moderately high, to high estimates could be selected in the early part of the duck’s lifetime while the low estimates of repeatability for some egg quality traits in this Muscovy duck indicates that improvement in these traits could be achieved through improvement of most of their non-genetic factors of Muscovy production. |
| format | Article |
| id | doaj-art-0f9fdac17c9547a286e38ffcc459da02 |
| institution | Kabale University |
| issn | 2284-7995 2285-3952 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | University of Agricultural Sciences and Veterinary Medicine, Bucharest |
| record_format | Article |
| series | Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development |
| spelling | doaj-art-0f9fdac17c9547a286e38ffcc459da022025-08-20T03:45:18ZengUniversity of Agricultural Sciences and Veterinary Medicine, BucharestScientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development2284-79952285-39522024-01-01243334073REPEATABILITY ESTIMATES OF EXTERNAL AND INTERNAL EGG QUALITY TRAITS OF LOCAL MUSCOVY DUCKSBababunmi AJAYIHalimah AGBAJEKafayat AKINSOLAAdelani ADEOYEGreat BABALOLARebecca ADAGARepeatability is one of the genetic parameters that determines breeding values of traits. Studies on repeatability estimates of the internal and external quality traits of Nigerian Muscovy duck eggs were carried out at Poultry Unit, Teaching and Research Farm, Osun State University. Ejigbo. A total of 383 eggs collected from 50 ducks mated to 10 drakes were used for the studies. External egg quality studied includes: egg weight (EW), shell weight (SW), shell thickness (ST) egg length (EL), egg width (EWIEgg density (ED), egg shell index (ESI) and egg surface area (ESA), shell percentage (SP), shell density (SD), egg volume (EV) and shell surface area (SSA). The internal egg quality traits include: yolk colour (YC), yolk weight (YW), yolk height (YH), yolk diameter (YD), albumen height (AH), albumen diameter (AD), albumen weight (AW), yolk percentage (YP) yolk index (YI), albumen percentage (AP), and haugh unit (HU). The data collected were subjected to one way analysis of variance to determine variance components and repeatability estimates. Results showed that, repeatability estimates were ranged from low to moderately high and the repeatability values for external egg quality traits were: EW(0.44±0.02), SW(0.11±0.01), ST (-0.01±0.01), EL (0.26±0.02), EWI (0.39±0.02), ED (-0.01±0.01), ESI (-0.02±0.01), ESA (0.44±0.02), SP (0.16±0.02), SD (-0.01±0.01), EV (0.14±0.02) and SSA (0.11±0.01) while that of the internal qualities were: YC ( 0.01±0.01), YW (0.41±0.02), YH (0.10±0.01), YD (0.04±0.01), AH (-0.11±0.00), AD (0.21±0.02), AW (0.42±0.02), YP (0.37±0.02), AP (0.34±0.02), while Haugh unit is (0.34±0.02) and albumen index (0.02±0.01). It was concluded that, traits with moderately high, to high estimates could be selected in the early part of the duck’s lifetime while the low estimates of repeatability for some egg quality traits in this Muscovy duck indicates that improvement in these traits could be achieved through improvement of most of their non-genetic factors of Muscovy production.https://managementjournal.usamv.ro/pdf/vol.24_3/Art3.pdf |
| spellingShingle | Bababunmi AJAYI Halimah AGBAJE Kafayat AKINSOLA Adelani ADEOYE Great BABALOLA Rebecca ADAGA REPEATABILITY ESTIMATES OF EXTERNAL AND INTERNAL EGG QUALITY TRAITS OF LOCAL MUSCOVY DUCKS Scientific Papers Series : Management, Economic Engineering in Agriculture and Rural Development |
| title | REPEATABILITY ESTIMATES OF EXTERNAL AND INTERNAL EGG QUALITY TRAITS OF LOCAL MUSCOVY DUCKS |
| title_full | REPEATABILITY ESTIMATES OF EXTERNAL AND INTERNAL EGG QUALITY TRAITS OF LOCAL MUSCOVY DUCKS |
| title_fullStr | REPEATABILITY ESTIMATES OF EXTERNAL AND INTERNAL EGG QUALITY TRAITS OF LOCAL MUSCOVY DUCKS |
| title_full_unstemmed | REPEATABILITY ESTIMATES OF EXTERNAL AND INTERNAL EGG QUALITY TRAITS OF LOCAL MUSCOVY DUCKS |
| title_short | REPEATABILITY ESTIMATES OF EXTERNAL AND INTERNAL EGG QUALITY TRAITS OF LOCAL MUSCOVY DUCKS |
| title_sort | repeatability estimates of external and internal egg quality traits of local muscovy ducks |
| url | https://managementjournal.usamv.ro/pdf/vol.24_3/Art3.pdf |
| work_keys_str_mv | AT bababunmiajayi repeatabilityestimatesofexternalandinternaleggqualitytraitsoflocalmuscovyducks AT halimahagbaje repeatabilityestimatesofexternalandinternaleggqualitytraitsoflocalmuscovyducks AT kafayatakinsola repeatabilityestimatesofexternalandinternaleggqualitytraitsoflocalmuscovyducks AT adelaniadeoye repeatabilityestimatesofexternalandinternaleggqualitytraitsoflocalmuscovyducks AT greatbabalola repeatabilityestimatesofexternalandinternaleggqualitytraitsoflocalmuscovyducks AT rebeccaadaga repeatabilityestimatesofexternalandinternaleggqualitytraitsoflocalmuscovyducks |