Effect of the Hatching Month as an Environmental Factor on the Hatching Features of Bronze Turkeys
The aim of this study was to determine the effect of hatching month on the hatching features of Bronze turkeys, and to determine the suitable months for hatching. For this purpose, the hatching records of Bronze turkeys raised in the Bingöl Beekeeping and Turkey Production Station from 1998 to 2003 were used. Egg fertility and hatchability of both total eggs and of fertile eggs were investigated, and it was found that the effect of hatching month on all 3 variables was statistically significant. The results regarding all 3 variables were lower in June as compared to the other months investigated. For this reason, it was concluded that hatching should not be performed in June, when temperatures increase sharply.
Effect of the Hatching Month as an Environmental Factor on the Hatching Features of Bronze Turkeys
The aim of this study was to determine the effect of hatching month on the hatching features of Bronze turkeys, and to determine the suitable months for hatching. For this purpose, the hatching records of Bronze turkeys raised in the Bingöl Beekeeping and Turkey Production Station from 1998 to 2003 were used. Egg fertility and hatchability of both total eggs and of fertile eggs were investigated, and it was found that the effect of hatching month on all 3 variables was statistically significant. The results regarding all 3 variables were lower in June as compared to the other months investigated. For this reason, it was concluded that hatching should not be performed in June, when temperatures increase sharply.
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- Sastry, N.S.R., Thomas, C.K., Singh, R.A.: Livestock Production Management. 3rd ed., Kalyani Publishers, New Delhi- Ludhiana. 1996; 559.
- Van Krey, H.P., Denbow, D.M., Hulet, R.M.: The effect of ambient temperature on turkey embryonic development at oviposition. Theriogenology. 1987; 28: 489-494.
- Aggarwal, C.K.: Effect of age of breeders and month of hatching on percent fertility in two lines of turkeys selected for high and low body weight: A note. Indian J. Anim. Prod. Manag., 1987; 3: 157-158.
- Pruthi, S.P., Aggarwal, C.K.: Effect of hatching month on fertility and hatchability of duck eggs: a note. Indian J. Anim. Prod. Manag., 1987; 3: 225.
- Kalita, D., Das, D., Goswami, R.N., Bora, H.N., Dhar, W.: Fertility and hatchability of White Leghorn and Rhode Island Red breeds of chicken in Meghalaya. Indian Vet. J., 1985; 62: 705-710.
- Goher, L.M., Kamar, G.A.R., Hussein, H.A., Nasrat, G.E.: Fertility and hatchability in duck eggs. Agricult. Res. Rev., 1983; 58: 245- 257.
- Das, G.B., Ali, M.L.: Raising layer chicken over fish ponds in integrated poultry- fish farming system in rural areas. Bangladesh J. Anim. Sci., 1999; 28: 121-128.
- Kamar, G.A.R., Hussain, H.H., Goher, L., El-Nadi, M.M.: Egg characteristics and monthly differences affecting fertility, hatchability and embryonic mortality in Pekin ducks. Egyptian J. Anim. Prod., 1984; 24: 137-150.
- Singh, D.K., Singh, C.S.P., Singh, L.B., Singh, K.K., Singh, U.C.: Studies on some fertility and hatchability characters in White Leghorn and White Rock chickens. Avian Res., 1983; 67: 57-59.
- Chowdhury, M.M.I., Ashraf, A., Mondal, S.P., Mondol, N.M.A.A.M., Hasan, M.M.: Effect of season on the hatchability of duck eggs. Int. J. Poult. Sci., 2004; 3: 419-421.
- Farooq, M., Javed, K., Durrani, F.R., Irfanullah, K., Chand, N.: Hatching performance of backyard hens in Peshawar, Pakistan. Livestock Res. Rural Dev., 2003; 15.
- Sreenivasaiah, P.V., Joshi, H.B.: Influence of hatching season on fertility and hatchability of fertile eggs in Japanese quails (Coturnix coturnix japonica). Poultry Sci., 1987; 20: 25-28.
- Aksoy, F.T.: Tavuk Yetifltiriciliği. 3. Baskı. Ankara. 1999; 143.
- Zar, J.H.: Biostatistical Analysis. Third ed. Prentice-Hall International Inc., United States of America. 1996.