Nauka Przyroda Technologie

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Sebastian Nowaczewski, Katarzyna Witkiewicz, Maciej Frątczak, Helena Kontecka, Andrzej Rutkowski, Stanisława Krystianiak, Andrzej Rosiński
Egg quality from domestic and French guinea fowl
Summary. The eggs of the guinea fowls from flock I (French, meat type) were characterized by a greater (by 14.6 g, p ≤ 0.05) mean weight in comparison with the eggs from flocks II (domestic). Birds from flock I laid eggs with a greater egg-shell weight (by 1.7 g). Eggs from flock I were characterized by a significantly higher (by 3.2 g) mean yolk weight and the percentage content of the egg albumen (by 3.5 percentage points) and lower (by 2.7 percentage points) proportion of the yolk in the egg. Significant positive correlations were found between the weight of eggs and the weight of the yolk, albumen and eggshell, percentage content of the albumen, eggshell thickness and its surface (rP from 0.363 to 0.989). Egg specific gravity was correlated positively with eggshell traits. Significantly positive correlations were also found between the weight of yolk and albumen and the weight, thickness and surface of eggshells (rP from 0.312 to 0.975) as well as between the eggshell weight and its content in the egg, thickness and surface (rP from 0.448 to 0.810). The shape of guinea fowl eggs constituted a trait which was significantly negatively correlated with their weight as well as the weight of the yolk, albumen and shell as well as the eggshell surface (rP from –0.424 to –0.561). Eggs derived from French guinea fowls were characterized by greater weight of egg, yolk, albumen and eggshell and greater eggshell surface and water vapour conductance.
Key words: guinea fowl, egg quality, correlation
PDFFull text available in English in Adobe Acrobat format:
http://www.npt.up-poznan.net/tom2/zeszyt2/art_8.pdf

For citation:

MLA Nowaczewski, Sebastian, et al. "Egg quality from domestic and French guinea fowl." Nauka Przyr. Technol. 2.2 (2008): #8.
APA Sebastian Nowaczewski, Katarzyna Witkiewicz, Maciej Frątczak, Helena Kontecka, Andrzej Rutkowski, Stanisława Krystianiak, Andrzej Rosiński (2008). Egg quality from domestic and French guinea fowl. Nauka Przyr. Technol. 2 (2), #8
ISO 690 NOWACZEWSKI, Sebastian, et al. Egg quality from domestic and French guinea fowl. Nauka Przyr. Technol., 2008, 2.2: #8.
Corresponding address:
Sebastian Nowaczewski
Katedra Hodowli i Użytkowania Drobiu
Uniwersytet Przyrodniczy w Poznaniu
ul. Witosa 45
61-693 Poznań, Poland,

e-mail: sebnow@jay.au.poznan.pl
Accepted for print: 11.04.2008