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Puberty Onset Influencing Factors - Anatomy & Physiology (view source)
Revision as of 14:21, 8 September 2008
, 14:21, 8 September 2008→Heifers
=== Heifers ===
=== Heifers ===
* Heifers born in the autumn generally reach puberty before those born in the spring.
* Exposure to long photoperiods and warm temperatures during the second 6 months of life hastens the onset of puberty.
* The sequence of photoperiod exposure makes a difference. Exposure to short days during the first 6 months of life, followed by increasing day lengths in the second 6 months of life is associated with the earliest puberty. This is true of calves born in the autumn with exposure to natural photoperiods.
=== Bitch ===
=== Bitch ===