THE SEX RATIO IN THE DOMESTIC FOWL IN RELATION TO ANTECEDENT EGG PRODUCTION AND INBREEDING

1931 ◽  
Vol 60 (2) ◽  
pp. 124-131 ◽  
Author(s):  
MORLEY A. JULL
Keyword(s):  
Sex Ratio ◽  
Domestic Fowl ◽  
Egg Production

The Inheritance of Egg Production in the Domestic Fowl

1943 ◽  
Vol 77 (769) ◽  
pp. 119-132 ◽  
Author(s):  
I. Michael Lerner ◽  
Lewis W. Taylor
Keyword(s):  
Domestic Fowl ◽  
Egg Production

scholarly journals THE CORRELATION BETWEEN BODY PIGMENTATION AND EGG PRODUCTION IN THE DOMESTIC FOWL

Genetics ◽  
1917 ◽  
Vol 2 (2) ◽  
pp. 205-205
Author(s):  
J Arthur Harris ◽  
A F Blakeslee ◽  
D E Warner ◽  
Wm F Kirkpatrick
Keyword(s):  
Domestic Fowl ◽  
Egg Production ◽  
Body Pigmentation

The Life-History of Badumna-Candida (Araneae, Amaurobioidea)

1993 ◽  
Vol 41 (5) ◽  
pp. 441 ◽  
Author(s):  
MF Downes
Keyword(s):  
Sex Ratio ◽  
Egg Production ◽  
Production Cycle ◽  
Social Spider ◽  
Social Spiders ◽  
Primary Sex Ratio ◽  
The Social ◽  
The Status ◽  
History Of ◽  
Changes Over Time

A two-year study of the social spider Badumna candida at Townsville, Queensland, provided information on colony size and changes over time, maturation synchrony, temperature effects on development, sex ratio, dispersal, colony foundation, fecundity and oviposition. Key findings were that B. candida outbred, had an iteroparous egg-production cycle between March and October, had an even primary sex ratio and achieved maturation synchrony by retarding the development of males, which matured faster than females at constant temperature. There was no overlap of generations, the cohort of young from a nest founded by a solitary female in summer dispersing the following summer as subadults (females) or subadults and adults (males). These findings confirm the status of B. candida as a periodic-social spider (an annual outbreeder), in contrast to the few known permanent-social spider species whose generations overlap. Cannibalism, normally rare in social spiders, rose to 48% when spiders were reared at a high temperature. This may be evidence that volatile recognition pheromones suppress predatory instincts in social spiders.

scholarly journals Influence of Inbreeding on Egg Production in the Domestic Fowl

1953 ◽  
Vol 32 (3) ◽  
pp. 510-517 ◽  
Author(s):  
A.B. Stephenson ◽  
A.J. Wyatt ◽  
A.W. Nordskog
Keyword(s):  
Domestic Fowl ◽  
Egg Production
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