Correlations among egg weight, chick weight, and yolk sac weight in bobwhite quail (Colinus virginianus)

The relationships among egg weight, chick weight, yolk sac weight, and carcass weight (chick weight minus y.s. weight) in Bobwhite quail chicks at hatch were determined. Three egg weight groupings (9.6,10.4 and 11.2 g) were used. Chicks were removed from the incubator at 4-hr intervals from the star...

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Bibliographic Details
Published in:Florida scientist 1988-07, Vol.51 (3), p.159-162
Main Authors: Skewes, P.A, Wilson, H.R, Mather, F.B
Format: Article
Language:English
Subjects:
CAILLE
Carcass weight
CHICKS
CODORNIZ
Egg weight
EGGS
FLORIDA
FLORIDE
Hatching
HUEVOS
INCUBACION
INCUBATION
Incubators
MORTALIDAD
MORTALITE
MORTALITY
OEUF
PESO
POIDS
POLLITO
Poults
POUSSIN
QUAILS
WEIGHT
Yolk sac
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Summary:The relationships among egg weight, chick weight, yolk sac weight, and carcass weight (chick weight minus y.s. weight) in Bobwhite quail chicks at hatch were determined. Three egg weight groupings (9.6,10.4 and 11.2 g) were used. Chicks were removed from the incubator at 4-hr intervals from the start of hatching and body and yolk sac weights were determined immediately. Larger eggs produced larger chicks with larger yolk sacs and larger carcasses. As egg size increased, the chick weight as a percentage of egg weight increased. Yolk sac as a percentage of chick weight and yolk sac as a percentage of carcass weight were significantly lower for chicks from small eggs. The following correlations were found: egg weight to chick weight, 0.88; egg weight to yolk sac weight, 0.38; chick weight to yolk sac weight, 0.37; egg weight to chick carcass weight, 0.73.
ISSN:0098-4590