Hatchability of emu [Dromaius novaehollandiae] eggs in relation to incubation temperature

• Autorzy: Szczerbinska D. , Majewska D. , Tarasewicz Z. , Danczak A. , Ligocki M.
• Języki publikacji: EN

Abstrakty

EN

The aim of the study was to assess an effect of incubation temperature (36.4, 36.7, and 37.1°C) on hatching performance of emu. The fewest dead embryos (13.7%) were found in group I with the lowest incubation temperature. Raising the temperature by 0.3°C and 0.7°C in, respectively, group II and III reduced the hatchability indices, primarily due to an increased rate (by approx. 12%) of dead embryos in both groups. Temperature significantly influenced the duration of incubation period, as well as duration of hatching. Incubation at the highest temperature took the shortest time (49.9 days), whereas that at the lowest temperature lasted longest (51.5 days). A reversed pattern was found in the case of hatching duration, which at the higher temperature expanded by 282 minutes in group II and by 406 minutes in group III, as compared with group I.

Słowa kluczowe

EN

Dromaius novaehollandiae; temperature; ornamental bird; incubation; emu farm; incubation temperature; animal breeding; egg; emu

• Wydawca: -
• Czasopismo: Electronic Journal of Polish Agricultural Universities. Series Animal Husbandry
• Rocznik: 2003
• Tom: 06
• Numer: 2
• Opis fizyczny: http://www.ejpau.media.pl/series/volume6/issue2/animal/art-14.html

Twórcy

autor

Szczerbinska D.

• Agricultural University of Szczecin, Doktora Judyma 20, 71-460 Szczecin, Poland

autor

Majewska D.

autor

Tarasewicz Z.

autor

Danczak A.

autor

Ligocki M.

Bibliografia

• Borzemska W., 1984. Vademecum chorób drobiu [Guide to Poultry Diseases]. PWRiL, Warszawa [in Polish].
• Borzemska W., Kosowska G., 1997. Ważniejsze problemy w patologii lęgów u drobiu [Major problems in poultry incubation pathologies]. Zesz. Nauk. Prz. Hod. 31, 25-30 [in Polish].
• Brake J., Roseland B.L., 1995. Incubation and hatching [in: Ratite Encyclopedia. Ed. C. Drenowatz.].Ratite records Inc., San Antonio, 103-116.
• Dańczak A., Tarasewicz Z., Szczerbińska D., Adamirowicz D., Ligocki M., 1997. Evaluation of emu (Dromaius novaehollandiae) egg hatching results. [Ocena wyników lęgów jaj pochodzących od emu (Dromaius novaehollandiae).] Zesz. Nauk. Prz. Hod. 31, 225 [in Polish].
• Dańczak A., Majewska D., 1999. Emu (Dromaius novaehollandiae) hatch success and control on hatchling survival. Adv. Agric. Sci. 6(1), 25-30.
• Deeming D.C., Ayres L., Ayres F.J., 1993. Observations on the commercial production of ostrich (Struthio camelus) in the United Kingdom: Incubation. Vet. Rec. 132, 7, 627-631
• Delfel S., Roseland B., 1993. Incubation and hatching tips. AEA News 10, 1, 6-8.
• Horbańczuk J.O., 2000. Doskonalenie technologii sztucznych lęgów strusia afrykańskiego (Struthio camelus) z uwzględnieniem aspektów biologicznych [Improving the technology of artificial incubation of ostrich (Struthio camelus) eggs with reference to biological aspects]. Rozpr. Pr. Mat. Zootech., Zesz. Spec. 10, IGiHZ PAN, Warszawa [in Polish].
• Kinder L., 1993. Emu today and tomorrow. University of Arkansas Emu Research, Nardin, Oklahoma, 164-167.
• Majewska D., 1999. Ocena wylęgowości emu (Dromaius novaehollandiae) w okresie adaptacji ptaków do warunków krajowych [Evaluation of emu (Dromaius novaehollandiae) hatchability during the period of adaptation of birds to domestic environment]. Doct. thesis. AR, Szczecin, unpublished [in Polish].
• Majewska D., Szczerbińska D., Dobrowolski W., Tarasewicz Z., Wnukiewicz A., Romaniszyn K., 2002. Ocena wylęgowości jaj emu (Dromaius novaehollandiae) zależnie od czasu ich przechowywania [Evaluation of emu (Dromaius novaehollandiae) egg hatching results in relation to storage time]. Rocz. Nauk. Zootech., Suppl. 16, 79-84 [in Polish].
• Majewska D., Szczerbińska D., Tarasewicz Z., Dańczak A., Romaniszyn K., 2003. Assessment of hatching rate of emu (Dromaius novaehollandiae) in the first year of egg laying. Acta Sci. Pol. Zootech. 2 (2), 57-63.
• Minnaar M., 1998. The Emu Farmer's Handbook. Vol. 2. Nyoni Publishing Company, Groveton, Texas.
• Minnaar P. Minnaar M., 1993. The Emu Farmer's Handbook. Induna Company, Groveton, Texas.
• Scheideler S.E., 1996a. Nutrition and physiology of ratites. Canadian Ostrich 12, 10-31.
• Scheideler S.E., 1996b. Essential nutrients in the emu diet – sources and interactions. AEA News, Summer, 36-37.
• Stewart J.S., 1992. Ratite incubation. Proceedings of the Association of Avian Veterinarians, New Orleans, 336-339.
• Szczerbińska D., 2002. Charakterystyka użytkowości reprodukcyjnej emu (Dromaius novaehollandiae) ze szczególnym uwzględnieniem ultrastruktury skorupy i jej związku ze wskaźnikami wylęgowości jaj [Characterisation of reproductive performance of emu (Dromaius novaehollandiae) with particular reference to eggshell ultrastructure and its association with the indices of egg hatchability]. Rozpr. AR Szczec. 210 [in Polish].
• Wilson H.R., 1991. Interrelationships of egg size, chick size, posthatching growth and hatchability. World's Poult. Sci. J. 47, 5-20.