| More

Characteristics of quails egg's quality

Views: 42 Downloads: 94
Α. Λ. ΓΙΑΝΝΑΚΟΠΟΥΛΟΣ, Α. Σ. ΤΣΕΡΒΕΝΗ-ΓΟΥΣΗ
Α. Λ. ΓΙΑΝΝΑΚΟΠΟΥΛΟΣ, Α. Σ. ΤΣΕΡΒΕΝΗ-ΓΟΥΣΗ

Abstract


The eggs used in this study were laid by Coturnix coturnix japonica quails, during their 7th to 22th weeks of laying production. A total of 280 eggs collected twice daily in last three days of 7th, 8th, 10th, 11th, 12th, 14th, 17th and 22th weeks were used to investigate egg quality and egg shell strength under typical greek farming conditions. The results drawn from this study were as follows: 1. The egg weight increased significantly (P<0.001) from 11.33 g on the 7th week to 12.95 g on the 22th, while the shell weight increased (P<0.05) only by 0.07 g. 2. The yolk weight increaced by 0.51 g (Ρ 0.001), while the albumen weight increased (P<0.05) by 0.28 g. 3. The participation of yolk weight, albumen weight, and the shell weight to the total egg weight was 32.59%, 53.57%, and 7.80%, respectively. 4. Significant (P<0.01) regressions between the egg's characteristics and the quail's age were obtained with R' values ranging from 0.18 to 0.75. In addition significant correlation (Ρ 0.001) of egg's shape with albumen weight, and specific gravity were found with r=0.8160 and r=7878, respectively. The conclusions were that the egg's shell strength and the egg's characteristics were modified as the quails aged. Also the best criterion for the shell's strength was the egg shape index.


References


Γιαννακόπουλος Α.Λ., Κατσαούνης Ν.Κ. (1982): Σχέση μεταξύ της ηλικίας της αυγοπαραγωγού όρνιθας και της αντοχής του κελύφους των αυγών. Ι. Ιο στάδιο της περιόδου ωοτοκίας. Επιστημ. επετηρ. Κτην. Σχολής, τόμος 21ος, σελ. 124-142.

El-lbiary Η.Μ., Godfrey E.F., Shaffner CS. (1966): Correlations between growth and reproductive traits in the Japanese quail. Pultry Science 45:463-469.

Gilbert B.A., (1972): The activity of the ovary in relation to egg production. In egg Formation and Production on, pp 3-21. Edited by Freeman and Lake, Edinburge.

Harms R.H., Junguiera O.M., Wilson H.R. (1983): Specific gravity of turkey and bobwhite quail eggs as influenced by time of oviposition. Poultry Science 62: 1325-1326.

Iroh T., Sugawara H., Adachi S. (1978): Comparative chemical studies on the quail (Coturnix coturnix japonica) egg ovalbumin. Comp. Biochem. Physiol. 60B: 215-220.

Iroh T., Sugawara H., Adachi S. (1979): Comparative chemical studies on the quail (Coturnix coturnix japonica) egg ovotransferrin. Comp. Biochem. Physiol. 62B: 41-44.

Iroh T., Sugawara H., Adachi S. (1980). Some properties of the Sapanese quail (Coturnix coturnix japonica) egg ovomucoid. Comp. Biochem. Physiol. 65B: 563-566.

Marks H.L. (1984): Changes in two-week body weight accompanying long term selection for fourweek body weight in Japanese quail. Poultry Science (abstracts of paper ) 63:144.

Navarro M A.P., Murillo A. (1976): Calcium balance in the quail (Coturnix coturnix japonica). 1. Influence of sex and diethystilbestrol. Poultry Science 55:2201-2209.

Richards, J.F., Swanson, H.M., (1966): The relationship of egg shape to shell strength. Poul. Sci. 44:1555-1558.

Ricklefs R.E., Marks H.L. (1983): Egg characteristics of lines of Japanese quail selected for four-week body mass. Poultry Science 62: 1330-1332.

Roland D.A., Sloan D.R. Harms R.H. (1975): The ability of hens to maintain calcium deposition in the egg shell and egg yolk as the hen ages. Poultry Science 54:1720-1723.

Scott, M.L., Nesheim, M.C., Young J.R. (1969): Nutrition of chicken M.L. Scott and Associates. Ithaka, New York.

Stein. G.S., Bacon W.L. (1976): Effect of photoperiod upon age and maintenance of sexual development in female Coturnix coturnix japonica. Poultry Science 5:1214-1218.

Strong C.F. Jr., Nestor K.E., Bacon W.L. (1978): Inheritance of egg production, egg weight, body weight and certain plasma constituents in Coturnix. Poultry Science 57:1-9.

Wilson W.O.U., Abbott U.K., Abplanalp H. (1961): Evaluation of Coturnix (Japanese quail ) as pilot animal for poultry. Poultry Science 40:651- 657.


Refbacks

  • There are currently no refbacks.


Copyright (c) 2019 Α. Λ. ΓΙΑΝΝΑΚΟΠΟΥΛΟΣ, Α. Σ. ΤΣΕΡΒΕΝΗ-ΓΟΥΣΗ

Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.