The Journal "Agriculture and Forestry"
Časopis "Poljoprivreda i šumarstvo"
- Since 1955 -
Year 2018, Volume 64 Issue 4 (15.12.2018)
| Year : | 2018 |
| Volume : | 64 |
| Issue : | 4 (15.12.2018) |
| Authors : | Arda SÖZCÃœ, Aydın IPEK |
| Title : | INCREASING OF STORAGE PERIOD ALTERS EMBRYO DEVELOPMENT AND HATCHING CHARACTERISTICS OF PEKIN DUCK EGGS |
| Abstract : | This research was performed to determine the effects of storage period on embryo development and hatching characteristics in Pekin ducks. A total of 360 Pekin duck eggs was divided into four groups as 5-7 d, 8-10 d, 11-13 d and 14-16 d storage period and each group were stored at 15-18 ºC. Eggs were incubated at 37,5°C and a relative humidity of 55 to 60% during the first 24 days of incubation. These eggs were transferred into hatching machine for the last four days. A hatcher temperature of 37.0°C and a relative humidity of 72% were provided during hatching period. The effects of storage period on embryo development, embryonic mortality, hatchability of fertile eggs, hatchability of total eggs and chick hatching weight were significant (P<0.01). Results showed that a longer storage period caused a decline in yolk absorption and therefore decline of embryo growth parameters including body weight and length during incubation period. Hatchability declined with increasing of storage duration, and a storage period less than 7 d appeared to be the best for maximum hatchability. Egg weight loss increased with increased storage length (P<0.01), and the chick weight tended to decline in relation with storage period longer than 5-7 days |
| For citation : | Sözcü, A., Ipek, A. (2018): Increasing of storage period alters embryo development and hatching characteristics of Pekin duck eggs. Agriculture and Forestry, 64 (4): 65-70. DOI:10.17707/AgricultForest.64.4.08 |
| Keywords : | Pekin duck, egg storage, embryo development, hatching characteristics. |
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