to sex chickens

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• Sex ratio — is the ratio of males to females in a population. The primary sex ratio is the ratio at the time of conception, secondary sex ratio is the ratio at time of birth, and tertiary sex ratio is the ratio of mature organisms. [Nancy S. Coney and W. C.… …   Wikipedia

• sex — [seks] n. [ME < L sexus < ? secare, to cut, divide: see SAW1] 1. either of the two divisions, male or female, into which persons, animals, or plants are divided, with reference to their reproductive functions 2. the character of being male… …   English World dictionary

• sex-lim|i|ted — «SEHKS LIHM uh tihd», adjective. Biology. capable of phenotypic expression in one sex but not in the other: »Sex limited characters are sometimes classed as secondary sexual characters. Examples are: beard in man; bright colored plumage in… …   Useful english dictionary

• sex-limited — Expression of a trait in only one sex; e.g. milk production in mammals; egg production in chickens …   Glossary of Biotechnology

• Same-sex marriage and procreation — is an issue that lawmakers and judges have used to determine whether or not same sex marriage is legal. One such use occurred in the 2006 Washington state Supreme Court decision, Andersen v. King County [… …   Wikipedia

• Chick sexing — Chicks of different sexes can appear quite similar. Chick sexing is the method of distinguishing the sex of chicken and other hatchlings, usually by a trained person called a chick sexer or chicken sexer.[1] Chicken sexing is practiced mostly by… …   Wikipedia

• z chromosome — sex chromosome in some animals such as chickens and moths (male animals s are ZZ and female animals are WZ) …   English contemporary dictionary

• Dates of 2004 — ▪ 2005 January It turns out we were all wrong, probably, in my judgment. David Kay, former U.S. chief weapons inspector in Iraq, in testimony to the U.S. Senate Armed Services Committee, January 28 January 1              Haitian Pres. Jean… …   Universalium

• Health and Disease — ▪ 2009 Introduction Food and Drug Safety.       In 2008 the contamination of infant formula and related dairy products with melamine in China led to widespread health problems in children, including urinary problems and possible renal tube… …   Universalium

• List of chicken breeds — Thirty types of known chickens There are hundreds of chicken breeds in existence.[1] Domesticated for thousands of years, distinguishable breeds of chicken have been present since the combined factors of geographical isolation and selection for… …   Wikipedia

• reproductive system, animal — Introduction       any of the organ systems by which animals reproduce.       The role of reproduction is to provide for the continued existence of a species; it is the process by which living organisms duplicate themselves. Animals compete with… …   Universalium