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Puberty Onset Influencing Factors - Anatomy & Physiology (view source)
Revision as of 14:35, 8 September 2008
, 14:35, 8 September 2008→Genetics
* Breed has an influence on the age of puberty in both males and females.
* Breed has an influence on the age of puberty in both males and females.
* Due to this, puberty is not reached at the same age for all males or females of a particular species.
* Due to this, puberty is not reached at the same age for all males or females of a particular species.
=== Cattle ===
* Dairy cattle reach puberty earlier than beef cattle, as dairy breeds are selected to become productive as early as possible. The emphasis on selectively breeding beef cattle is to maximize growth.
* High yielding dairy cattle reach puberty earlier than lower yielding cattle.
* Larger breeds reach puberty earlier than smaller breeds.
=== Dogs ===
* Small breeds reach puberty at 6-10 months.
* Medium breeds reach puberty at 9-14 months.
* Large breeds reach puberty at 18-20 months.
* There is also a link to growth hormone secretion. Some breeds secrete higher levels of growth hormone, and thus attain puberty faster.
== Environmental and Social Conditions ==
== Environmental and Social Conditions ==